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Surgery - Vascular Access
Indications
Obtaining access for dialysis: involves the formation of a fistula two to three months prior to the start of dialysis. A native fistula should ideally be created as far away as feasible to minimize the risk of heart strain and "steal syndrome" while simultaneously providing the ideal length for venous cannulation and allowing for the eventual construction of more proximal access if necessary.
Signs of a leg fistula include: Occlusion of the innominate vein or superior vena cava (usually as a result of prior central vein lines).
Severe obesity, central venous blockage, or exhausted peripheral veins are indications for transplant fistulas.
Central vein catheters: Necessary in cases of severe heart failure, peripheral vascular disease, or emergency hemodialysate without a functional fistula.
Anatomy
There are three primary methods available: central venous catheter, prosthetic arteriovenous graft, or native arteriovenous fistula (AVF).
Native fistulas: Brachiobasilic, brachiocephalic, atypical (ulnarbasilic or radiobasilic), more proximal radiocephalic (Brescia–Cimino), brachiocephalic, and upper leg (saphenous vein loop, saphenous vein in situ, and femoral vein loop).
Axillary artery to contralateral axillary vein (necklace graft), axillary loop graft, and contralateral IJV bypass graft are examples of complex vascular access operations. SFV transposition (SVC obstruction), femoro-femoral crossover bypass, and axillary artery-popliteal vein bypass graft (SVC obstruction in individuals with diabetes or obesity).
Catheters for the central vein: Single and dual lumen catheters, non-tunnelled (short-term) or tunnelled (cuffed to prevent infection).
Investigations
Thorough clinical evaluation of the venous and arterial anatomy prior to surgery. Allen examination. If necessary—for example, due to a history of vascular issues or assessment difficulties—duplex scanning can be used to evaluate vein patency, artery input, and caliber. Venogram in case the patency of the veins is in doubt.
Post-operative: Fistula assessment and clinical examination of bruit and thrill. Before native fistulae can be utilized for dialysis, they often need a few weeks to grow. One can needle grafts more rapidly.
Aftercare: measurement of the ultrasound dilution to gauge the cardiac output, recirculation rate, and graft input rate. A fistulogram and the required intervention, such as endovascular or surgical fistuloplasty of stenosis, can be carried out if the inflow is less than 600 ml/min, there has been a decline since the last evaluation, or the recirculation rate is greater than 5%.
Anaesthesia: Depending on the procedure, either a local, regional, or global block is used.
Procedure
The vein is evaluated, dissected, mobilized, and separated distally after the proper incision. After the artery is dissected and heparin is injected intravenously, it is clamped, and an arteriotomy is made. Prolene suture is used to perform a side-to-side anastomosis. For simple cannulation in brachiobasilic fistulae, the vein must be transferred into superficial subcutaneous tissue. The most common grafts utilized are looped, straight, or PTFE.
Catheters for the central vein: Internal jugular veins are typically utilized for placement under ultrasound guidance; femoral veins can be used, but only temporarily, because of the danger of thrombosis and infection.
Complications
Thrombosis, failure to mature, limb edema, aneurysmal dilatation, bleeding, infection, nerve injury, distal embolization, steal syndrome, and thrombosis.
Indications
Obtaining access for dialysis: involves the formation of a fistula two to three months prior to the start of dialysis. A native fistula should ideally be created as far away as feasible to minimize the risk of heart strain and "steal syndrome" while simultaneously providing the ideal length for venous cannulation and allowing for the eventual construction of more proximal access if necessary.
Signs of a leg fistula include: Occlusion of the innominate vein or superior vena cava (usually as a result of prior central vein lines).
Severe obesity, central venous blockage, or exhausted peripheral veins are indications for transplant fistulas.
Central vein catheters: Necessary in cases of severe heart failure, peripheral vascular disease, or emergency hemodialysate without a functional fistula.
Anatomy
There are three primary methods available: central venous catheter, prosthetic arteriovenous graft, or native arteriovenous fistula (AVF).
Native fistulas: Brachiobasilic, brachiocephalic, atypical (ulnarbasilic or radiobasilic), more proximal radiocephalic (Brescia–Cimino), brachiocephalic, and upper leg (saphenous vein loop, saphenous vein in situ, and femoral vein loop).
Axillary artery to contralateral axillary vein (necklace graft), axillary loop graft, and contralateral IJV bypass graft are examples of complex vascular access operations. SFV transposition (SVC obstruction), femoro-femoral crossover bypass, and axillary artery-popliteal vein bypass graft (SVC obstruction in individuals with diabetes or obesity).
Catheters for the central vein: Single and dual lumen catheters, non-tunnelled (short-term) or tunnelled (cuffed to prevent infection).
Investigations
Thorough clinical evaluation of the venous and arterial anatomy prior to surgery. Allen examination. If necessary—for example, due to a history of vascular issues or assessment difficulties—duplex scanning can be used to evaluate vein patency, artery input, and caliber. Venogram in case the patency of the veins is in doubt.
Post-operative: Fistula assessment and clinical examination of bruit and thrill. Before native fistulae can be utilized for dialysis, they often need a few weeks to grow. One can needle grafts more rapidly.
Aftercare: measurement of the ultrasound dilution to gauge the cardiac output, recirculation rate, and graft input rate. A fistulogram and the required intervention, such as endovascular or surgical fistuloplasty of stenosis, can be carried out if the inflow is less than 600 ml/min, there has been a decline since the last evaluation, or the recirculation rate is greater than 5%.
Anaesthesia: Depending on the procedure, either a local, regional, or global block is used.
Procedure
The vein is evaluated, dissected, mobilized, and separated distally after the proper incision. After the artery is dissected and heparin is injected intravenously, it is clamped, and an arteriotomy is made. Prolene suture is used to perform a side-to-side anastomosis. For simple cannulation in brachiobasilic fistulae, the vein must be transferred into superficial subcutaneous tissue. The most common grafts utilized are looped, straight, or PTFE.
Catheters for the central vein: Internal jugular veins are typically utilized for placement under ultrasound guidance; femoral veins can be used, but only temporarily, because of the danger of thrombosis and infection.
Complications
Thrombosis, failure to mature, limb edema, aneurysmal dilatation, bleeding, infection, nerve injury, distal embolization, steal syndrome, and thrombosis.
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Surgery - Segmental Mastectomy (wide local excision)
Indications
One primary breast tumor that is excisable and has distinct resection margins (generally <4 cm with 1 cm margins). The patient needs to be a good candidate for follow-up and postoperative radiation.
Anatomy
There is a complex network of branching milk ducts that exit on the nipple (from 4 to 18 ducts; the anatomy originally reported by Cooper has been substantially changed in recent years). The breast tissue is composed of fatty and glandular tissue (ratio ranges from 1: 1 to 1: 2 in lactation). With an axillary tail, the base of the breast encloses the second through sixth ribs. Suspensory connective tissue ligaments support the breast tissue by extending from the dermis to the deep fascia.
Vascular: The internal mammary, intercostal, thoracodorsal, lateral thoracic, and thoracoacromial arteries, as well as their perforating arteries, provide the breast's arterial supply and associated venous drainage.
Lymphatics: The medial half drains into the nodes along the internal mammary artery, and the lateral half drains into the axillary nodes, which are made up of the anterior, posterior, lateral, central, and apical groups.
Investigations
Preoperative evaluation involves three methods: clinical examination, imaging (MRI, mammography, or ultrasound), and cytological investigation (FNA or trucut biopsy). Prior to surgery, imaging-guided wire localization can be necessary for smaller, impalpable lesions.
Tests for blood: FBC, U&Es, G&S, CXR, and ECG as necessary. general evaluation of anesthesia.
Prophylactic DVT after surgery. workouts for the shoulders to avoid stiffness, particularly following axillary surgery.
Procedure
Access: It is important to plan a skin incision that will look good visually. Transverse, circumferential, circumareolar, and inframammary are the available options. Skin excision is typically not necessary unless it is necessary to provide a sufficient margin free of tumors.
Excision: To remove the breast tissue containing the lesion with sufficient margins, dissection is carried out. Sutures should be used to mark the specimen so that histological investigation can be done with precise orientation. To ensure total excision of the lesion in wire-guided cases, an X-ray is taken of the specimen. To restore breast shape, it could be necessary to mobilize breast tissue. Haemostasis needs to be done carefully.
Closure: Usually, the skin and subcutaneous tissue layers are closed together.
A secondary incision is typically made behind the lateral border of the pectoralis major in order to perform the axillary node biopsy, sample, and clearing. Patients whose axilla is not clinically involved can benefit from sentinal node biopsy. Before surgery, radioactive tracer is injected into the breast, then on the day of the procedure, blue dye (methylene blue) is injected. To facilitate histological examination, the initial draining nodes are located and excised. Usually, an axillary clearing is carried out if there are implicated nodes. The pectoralis minor is used to determine the levels of axillary clearance, with level 1 nodes up to the muscle, level II nodes behind it, and level III nodes beyond the subclavius. The axillary vessels, thoracodorsal nerve and vessels (supply latissimus dorsi), and the long thoracic nerve of Bell (to serratus anterior) should be carefully dissected. The intercostobrachial nerve, which passes laterally through the axilla, may need to be sacrificed. Usually, a drain is left in place after clearing.
Complications
bleeding, seroma, infection, and inadequate cosmesis. following axillary surgery: winged scapula (long thoracic nerve injury), frozen shoulder, discomfort, lymphoedema, and numbness (intercostobrachial nerve injury).
Indications
One primary breast tumor that is excisable and has distinct resection margins (generally <4 cm with 1 cm margins). The patient needs to be a good candidate for follow-up and postoperative radiation.
Anatomy
There is a complex network of branching milk ducts that exit on the nipple (from 4 to 18 ducts; the anatomy originally reported by Cooper has been substantially changed in recent years). The breast tissue is composed of fatty and glandular tissue (ratio ranges from 1: 1 to 1: 2 in lactation). With an axillary tail, the base of the breast encloses the second through sixth ribs. Suspensory connective tissue ligaments support the breast tissue by extending from the dermis to the deep fascia.
Vascular: The internal mammary, intercostal, thoracodorsal, lateral thoracic, and thoracoacromial arteries, as well as their perforating arteries, provide the breast's arterial supply and associated venous drainage.
Lymphatics: The medial half drains into the nodes along the internal mammary artery, and the lateral half drains into the axillary nodes, which are made up of the anterior, posterior, lateral, central, and apical groups.
Investigations
Preoperative evaluation involves three methods: clinical examination, imaging (MRI, mammography, or ultrasound), and cytological investigation (FNA or trucut biopsy). Prior to surgery, imaging-guided wire localization can be necessary for smaller, impalpable lesions.
Tests for blood: FBC, U&Es, G&S, CXR, and ECG as necessary. general evaluation of anesthesia.
Prophylactic DVT after surgery. workouts for the shoulders to avoid stiffness, particularly following axillary surgery.
Procedure
Access: It is important to plan a skin incision that will look good visually. Transverse, circumferential, circumareolar, and inframammary are the available options. Skin excision is typically not necessary unless it is necessary to provide a sufficient margin free of tumors.
Excision: To remove the breast tissue containing the lesion with sufficient margins, dissection is carried out. Sutures should be used to mark the specimen so that histological investigation can be done with precise orientation. To ensure total excision of the lesion in wire-guided cases, an X-ray is taken of the specimen. To restore breast shape, it could be necessary to mobilize breast tissue. Haemostasis needs to be done carefully.
Closure: Usually, the skin and subcutaneous tissue layers are closed together.
A secondary incision is typically made behind the lateral border of the pectoralis major in order to perform the axillary node biopsy, sample, and clearing. Patients whose axilla is not clinically involved can benefit from sentinal node biopsy. Before surgery, radioactive tracer is injected into the breast, then on the day of the procedure, blue dye (methylene blue) is injected. To facilitate histological examination, the initial draining nodes are located and excised. Usually, an axillary clearing is carried out if there are implicated nodes. The pectoralis minor is used to determine the levels of axillary clearance, with level 1 nodes up to the muscle, level II nodes behind it, and level III nodes beyond the subclavius. The axillary vessels, thoracodorsal nerve and vessels (supply latissimus dorsi), and the long thoracic nerve of Bell (to serratus anterior) should be carefully dissected. The intercostobrachial nerve, which passes laterally through the axilla, may need to be sacrificed. Usually, a drain is left in place after clearing.
Complications
bleeding, seroma, infection, and inadequate cosmesis. following axillary surgery: winged scapula (long thoracic nerve injury), frozen shoulder, discomfort, lymphoedema, and numbness (intercostobrachial nerve injury).
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Surgery - Renal Transplantation
Indications
Dialysis is necessary for end-stage renal failure (creatinine clearance <20 ml/min) or is expected to be necessary in the next six to twelve months. The most frequent causes are renovascular disease, polycystic kidney disease, reflux nephropathy, glomerulonephritis, diabetic nephropathy, and hypertension.
When compared to dialysis, renal transplantation is more affordable and increases life expectancy.
Anatomy
The donor kidney is implanted heterotopically, that is, retroperitoneally in the iliac fossa, but not in the same spot as the native kidney. Renal vessels are anastomosed to the IVC and aorta in adults, and occasionally to the external iliac arteries in infants. The bladder and ureter are anastomosed. Because the connecting vein and artery are longer, transplanting left kidneys typically presents less of a challenge.
Unless they provide a risk of recurrent infections or, in the case of large polycystic kidneys, impinge into the iliac fossa, native kidneys are typically left in situ.
Investigations
Workup before to surgery: Multidisciplinary evaluation, such as echocardiography, angiography, perfusion investigations, or ECG, should include cardiovascular evaluation since dialysis patients frequently have ischemic heart disease. HIV, hepatitis B, C, EBV, CMV, and other viral screens.
Donors who are alive: can be altruistic, unrelated, or related donors, and they all need a comprehensive medical and psychological evaluation. people in good health with typical renal function. Angiography (CT or MR) can be used to examine the anatomy of the renal vessels.
Tissue typing and panel-reactive antibody titres: An enhanced result is obtained by better matching of the major histocompatibility loci, class II DR > class I B > class I A. Patients on the waiting list, as well as lymphocytes from the spleen or donor lymph node, are subjected to HLA typing. A nationwide organ-sharing network facilitates the quick identification of the most appropriate recipient by identifying identical or "favourable" matches. Blood group compatibility of donor kidneys is ensured, and recipients undergo screening for antibodies that may cause hyperacute rejection. The possibility that a kidney donor selected at random will have a positive cytotoxic lymphocyte crossmatch with the intended recipient is estimated by the titre of the panel-reactive antibody.
Actions
Organ donation: In the UK, only 20% of patients have an eligible living donor; the remaining organs come from cadavers. In every situation, the next of kin gives their consent. Donors should be free of cancer (except from primary brain tumors), have good renal function, and undergo screening for hepatitis, HIV, and CMV.
Organ retrieval: In order to minimize heated ischaemia time, the kidneys are removed as part of a multi-organ retrieval procedure. They are then in situ perfused with a cold preservative solution, such as the Marshall or University of Wisconsin solution. The kidney is removed with perinephric fat in situ to prevent injury. While less than 24 hours is acceptable, preservation times should be kept to a minimum since any more can increase the likelihood of both short- and long-term failure. Machine cold perfusion of cadaveric kidneys has been demonstrated in trials to improve graft survival and decrease delayed graft function.
Recipient operation: An extraperitoneal technique using an oblique lower abdominal incision provides access to the bladder and iliac veins. Following the anastomosis of the renal vein to the external iliac vein, an end-to-side arterial anastomosis is typically formed, frequently utilizing a donor aortic patch (Carrel patch). Next, a ureteric stent is used to produce a ureteroneocystostomy. For a few days, an indwelling catheter is left in place to allow the bladder incision to heal. Immunosuppression is started and antibiotic prophylaxis is administered. Fluid balance needs to be closely monitored after surgery.
Immunosuppression: Immune risk levels are categorized as low or high, for example, diabetes risk associated with a second transplant (new-onset diabetes after transplantation, or NODAT).
Medications include corticosteroids, monoclonal antibodies, calcineurin inhibitors (like tacrolimus and cyclosporin), purine synthesis inhibitors (like azathioprine and mycophenolate mofetil), and monoclonal antibodies (like basiliximab, an IL-2 receptor antagonist). Renal function deterioration is examined by biopsies, Doppler, and ultrasonography.
Complications
Impaired graft function: Twenty to thirty percent of cases of acute tubular necrosis result in delayed graft function.
Vascular (1%–5%): renal vein thrombosis, renal artery thrombosis, renal artery stenosis, and hemorrhage.
Urological (2–10%): reflux, ureteric stenosis (managed with ureteroplasty, stent placement, or open surgery), bladder leak, and ureteric leak.
Lymphocoeles: Caused by disruption of lymphatics, occurring in 1-6 percent of transplants; treated by marsupialization into the peritoneum or percutaneous drainage.
Early infection: infections caused by bacteria. Subsequent: Opportunistic infections, such as Candida, CMV, BK virus, HSV, and Pneumocystis.
Rejection: . Excessive: Owing to already-formed antibodies.
Crossmatching before transplantation ought to stop this from happening.
Acute: Up to 40% of cases are most common. because of T-cells attacking the graft, which was treated with steroid boluses or antibody therapy when renal function abnormalities and a kidney biopsy revealed the attack.
Chronic: A late-onset renal disease characterized by progressive loss of renal function, proteinuria, and hypertension. resistant to the majority of treatments and finally lead to graft failure.
Immunosuppression includes drug side effects, infections, and post-transplant cancers, such as an increased risk of skin cancer and lymphomas (a condition known as post-transplant lymphoproliferative illness).
Patient survival was >90% at one year and >80% at five years for PRONOS I S. Overall graft survival was 85% for cadaveric donors and 90–95% for living donors at 12 months. After that, 3-5 percent of grafts were lost annually.
Following a transplant, cardiovascular problems account for the majority of deaths.
Indications
Dialysis is necessary for end-stage renal failure (creatinine clearance <20 ml/min) or is expected to be necessary in the next six to twelve months. The most frequent causes are renovascular disease, polycystic kidney disease, reflux nephropathy, glomerulonephritis, diabetic nephropathy, and hypertension.
When compared to dialysis, renal transplantation is more affordable and increases life expectancy.
Anatomy
The donor kidney is implanted heterotopically, that is, retroperitoneally in the iliac fossa, but not in the same spot as the native kidney. Renal vessels are anastomosed to the IVC and aorta in adults, and occasionally to the external iliac arteries in infants. The bladder and ureter are anastomosed. Because the connecting vein and artery are longer, transplanting left kidneys typically presents less of a challenge.
Unless they provide a risk of recurrent infections or, in the case of large polycystic kidneys, impinge into the iliac fossa, native kidneys are typically left in situ.
Investigations
Workup before to surgery: Multidisciplinary evaluation, such as echocardiography, angiography, perfusion investigations, or ECG, should include cardiovascular evaluation since dialysis patients frequently have ischemic heart disease. HIV, hepatitis B, C, EBV, CMV, and other viral screens.
Donors who are alive: can be altruistic, unrelated, or related donors, and they all need a comprehensive medical and psychological evaluation. people in good health with typical renal function. Angiography (CT or MR) can be used to examine the anatomy of the renal vessels.
Tissue typing and panel-reactive antibody titres: An enhanced result is obtained by better matching of the major histocompatibility loci, class II DR > class I B > class I A. Patients on the waiting list, as well as lymphocytes from the spleen or donor lymph node, are subjected to HLA typing. A nationwide organ-sharing network facilitates the quick identification of the most appropriate recipient by identifying identical or "favourable" matches. Blood group compatibility of donor kidneys is ensured, and recipients undergo screening for antibodies that may cause hyperacute rejection. The possibility that a kidney donor selected at random will have a positive cytotoxic lymphocyte crossmatch with the intended recipient is estimated by the titre of the panel-reactive antibody.
Actions
Organ donation: In the UK, only 20% of patients have an eligible living donor; the remaining organs come from cadavers. In every situation, the next of kin gives their consent. Donors should be free of cancer (except from primary brain tumors), have good renal function, and undergo screening for hepatitis, HIV, and CMV.
Organ retrieval: In order to minimize heated ischaemia time, the kidneys are removed as part of a multi-organ retrieval procedure. They are then in situ perfused with a cold preservative solution, such as the Marshall or University of Wisconsin solution. The kidney is removed with perinephric fat in situ to prevent injury. While less than 24 hours is acceptable, preservation times should be kept to a minimum since any more can increase the likelihood of both short- and long-term failure. Machine cold perfusion of cadaveric kidneys has been demonstrated in trials to improve graft survival and decrease delayed graft function.
Recipient operation: An extraperitoneal technique using an oblique lower abdominal incision provides access to the bladder and iliac veins. Following the anastomosis of the renal vein to the external iliac vein, an end-to-side arterial anastomosis is typically formed, frequently utilizing a donor aortic patch (Carrel patch). Next, a ureteric stent is used to produce a ureteroneocystostomy. For a few days, an indwelling catheter is left in place to allow the bladder incision to heal. Immunosuppression is started and antibiotic prophylaxis is administered. Fluid balance needs to be closely monitored after surgery.
Immunosuppression: Immune risk levels are categorized as low or high, for example, diabetes risk associated with a second transplant (new-onset diabetes after transplantation, or NODAT).
Medications include corticosteroids, monoclonal antibodies, calcineurin inhibitors (like tacrolimus and cyclosporin), purine synthesis inhibitors (like azathioprine and mycophenolate mofetil), and monoclonal antibodies (like basiliximab, an IL-2 receptor antagonist). Renal function deterioration is examined by biopsies, Doppler, and ultrasonography.
Complications
Impaired graft function: Twenty to thirty percent of cases of acute tubular necrosis result in delayed graft function.
Vascular (1%–5%): renal vein thrombosis, renal artery thrombosis, renal artery stenosis, and hemorrhage.
Urological (2–10%): reflux, ureteric stenosis (managed with ureteroplasty, stent placement, or open surgery), bladder leak, and ureteric leak.
Lymphocoeles: Caused by disruption of lymphatics, occurring in 1-6 percent of transplants; treated by marsupialization into the peritoneum or percutaneous drainage.
Early infection: infections caused by bacteria. Subsequent: Opportunistic infections, such as Candida, CMV, BK virus, HSV, and Pneumocystis.
Rejection: . Excessive: Owing to already-formed antibodies.
Crossmatching before transplantation ought to stop this from happening.
Acute: Up to 40% of cases are most common. because of T-cells attacking the graft, which was treated with steroid boluses or antibody therapy when renal function abnormalities and a kidney biopsy revealed the attack.
Chronic: A late-onset renal disease characterized by progressive loss of renal function, proteinuria, and hypertension. resistant to the majority of treatments and finally lead to graft failure.
Immunosuppression includes drug side effects, infections, and post-transplant cancers, such as an increased risk of skin cancer and lymphomas (a condition known as post-transplant lymphoproliferative illness).
Patient survival was >90% at one year and >80% at five years for PRONOS I S. Overall graft survival was 85% for cadaveric donors and 90–95% for living donors at 12 months. After that, 3-5 percent of grafts were lost annually.
Following a transplant, cardiovascular problems account for the majority of deaths.
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Surgery - Skin Grafts and Flaps
Indications
Wounds where secondary intention healing or primary closure is not possible, would be deformative, or take a lengthy period, such as burns with traumatic skin loss, pressure sores, ulcers, or post-wide excision following tumor treatment or infection, like necrotizing fasciitis.
Skin grafts: A skin graft involves transferring a portion of skin from a donor site to a recipient site.
They need to be revascularized from the recipient location because they are free grafts. There are two types of skin grafts: split thickness (Thiersch graft) and full thickness (Wolfe graft). Split skin grafts can have poor visual appearance, a tendency to contract, and increased susceptibility to injury. Full thickness grafts have less contraction, more resilience, and a more appealing appearance. However, they are less dependable than split grafts and can sometimes only cover a small region.
Blocks of tissue that carry their own blood supply are known as flaps. The blood supply and movement of flaps, such as advancement or free flaps (the latter involving vascular or microvascular anastomosis), as well as the tissue content, which can be single (cutaneous, fascial, or bone) or composite (myocutaneous or fasciocutaneous), can all be used to classify flaps.
Flaps have the ability to correct a wide range of abnormalities and typically heal more quickly than grafts. The degree of experience needed and the possibility of functional or esthetic flaws remaining at the donor site are drawbacks.
Anatomy
Skin grafts with partial thickness comprise both the epidermis and the outermost layer of the dermis.
The deeper regions of sweat glands and hair follicles are where epidermis regenerates. Grafts can be meshed in order to cover a larger area and allow serous or serosanguinous fluid to escape, giving the appearance of a "string vest." Extra skin can be kept in the refrigerator aseptically for up to eight days, ideally for usage.
The dermis and epidermis are present in full thickness skin grafts.Postauricular, supraclavicular, lateral groin crease, and medial arm are common donor sites. They are limited in size, and donor sites are usually closed or may even need to have split skin grafted.
Investigational studies
Pre-op: Cleansing the recipient's wound and using a swab to make sure there are no infections. As they can inhibit graft taking, Streptococcus pyogenes and Pseudomonas should be treated initially. If anemia is substantial, treat it.
Observant wound care following surgery. The graft must not move while being bandaged or subsequently, due to the importance of dressings, to avoid the danger of failure. evaluation of viability or infection-related symptoms.
Actions
a wide range of approaches based on the donor and recipient locations.
Use a Humby knife to perform split skin transplants. Thighs and buttocks are common places for donors. Grafts are fastened at the margins using glue, staples, or sutures. Granulation tissue is the ideal location for skin grafts; other locations need to have adequate blood flow; naked tendon, cartilage, or bone cannot support a skin graft but can be covered by a skin flap.
After the skin transplant is placed, it is carefully dressed to help prevent shearing, infection, and hemorrhage or seroma.
Skin grafts done in their entirety: To aid in closure, the defect's pattern is noted on the donor site and an ellipse is carved around the graft. After that, the graft is properly prepared and sutured to the recipient site without causing any stress.
Skin flaps: A block of skin is transferred from a donor site to a recipient site, taking with it the blood supply of the underlying tissue (such as fascia, muscle, or bone). A local flap can be moved using a variety of methods, such as advancement, rotation, and transposition.
Complications
hemorrhage, infection, necrosis of the flap, scarring, contraction, and inadequate cosmesis.
Indications
Wounds where secondary intention healing or primary closure is not possible, would be deformative, or take a lengthy period, such as burns with traumatic skin loss, pressure sores, ulcers, or post-wide excision following tumor treatment or infection, like necrotizing fasciitis.
Skin grafts: A skin graft involves transferring a portion of skin from a donor site to a recipient site.
They need to be revascularized from the recipient location because they are free grafts. There are two types of skin grafts: split thickness (Thiersch graft) and full thickness (Wolfe graft). Split skin grafts can have poor visual appearance, a tendency to contract, and increased susceptibility to injury. Full thickness grafts have less contraction, more resilience, and a more appealing appearance. However, they are less dependable than split grafts and can sometimes only cover a small region.
Blocks of tissue that carry their own blood supply are known as flaps. The blood supply and movement of flaps, such as advancement or free flaps (the latter involving vascular or microvascular anastomosis), as well as the tissue content, which can be single (cutaneous, fascial, or bone) or composite (myocutaneous or fasciocutaneous), can all be used to classify flaps.
Flaps have the ability to correct a wide range of abnormalities and typically heal more quickly than grafts. The degree of experience needed and the possibility of functional or esthetic flaws remaining at the donor site are drawbacks.
Anatomy
Skin grafts with partial thickness comprise both the epidermis and the outermost layer of the dermis.
The deeper regions of sweat glands and hair follicles are where epidermis regenerates. Grafts can be meshed in order to cover a larger area and allow serous or serosanguinous fluid to escape, giving the appearance of a "string vest." Extra skin can be kept in the refrigerator aseptically for up to eight days, ideally for usage.
The dermis and epidermis are present in full thickness skin grafts.Postauricular, supraclavicular, lateral groin crease, and medial arm are common donor sites. They are limited in size, and donor sites are usually closed or may even need to have split skin grafted.
Investigational studies
Pre-op: Cleansing the recipient's wound and using a swab to make sure there are no infections. As they can inhibit graft taking, Streptococcus pyogenes and Pseudomonas should be treated initially. If anemia is substantial, treat it.
Observant wound care following surgery. The graft must not move while being bandaged or subsequently, due to the importance of dressings, to avoid the danger of failure. evaluation of viability or infection-related symptoms.
Actions
a wide range of approaches based on the donor and recipient locations.
Use a Humby knife to perform split skin transplants. Thighs and buttocks are common places for donors. Grafts are fastened at the margins using glue, staples, or sutures. Granulation tissue is the ideal location for skin grafts; other locations need to have adequate blood flow; naked tendon, cartilage, or bone cannot support a skin graft but can be covered by a skin flap.
After the skin transplant is placed, it is carefully dressed to help prevent shearing, infection, and hemorrhage or seroma.
Skin grafts done in their entirety: To aid in closure, the defect's pattern is noted on the donor site and an ellipse is carved around the graft. After that, the graft is properly prepared and sutured to the recipient site without causing any stress.
Skin flaps: A block of skin is transferred from a donor site to a recipient site, taking with it the blood supply of the underlying tissue (such as fascia, muscle, or bone). A local flap can be moved using a variety of methods, such as advancement, rotation, and transposition.
Complications
hemorrhage, infection, necrosis of the flap, scarring, contraction, and inadequate cosmesis.
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Surgery - Splenecetomy
Indications
traumatic causes rupture following an abdominal blunt injury or an iatrogenic injury during intraabdominal surgery.
hematological Previously, immunological thrombocytopaenia, myelofibrosis, autoimmune hemolytic anemias, elliptocytosis, and hereditary spherocytosis were used to stage haematological diseases such Hodgkins disease.
Other procedures include the management of splenic cysts and tumors, as well as radical gastrectomies and pancreatectomies, oesophagogastric varices, and splenic artery aneurysms.
Anatomy
The spleen's long axis runs along the 10th rib, and it is located posteriorly in the left upper quadrant of the abdomen, near the 9th and 11th ribs. It is encircled by the peritoneum, which extends from the hilum to the stomach's greater curvature and, in turn, to the left kidney as the splenorenal ligament (which includes the tail of the pancreas) and the gastrosplenic ligament (which contains short gastric and left gastroepiploic vessels), respectively. Additionally, it possesses avascular ligamentous attachments, such as the splenocolic and phrenosplenic ligaments.
Primary roles include immunosurveillance, which involves removing senescent red blood cells and removing pathogens from the bloodstream, as well as immunoglobulin and complement system components synthesis. Splenunculi, or accessory spleens, are common (5–15%).
Vascular: The splenic vein, which originates from the celiac trunk and joins the superior mesenteric vein to form the portal vein, drains the venous portion of the splenic artery below the pancreas.
Investing in education
Pre-op: Two weeks prior to surgery is the ideal time to receive vaccinations against encapsulated organisms, such as Men C (Neisseria meningitidis), Hib (Haemophilus influenzae), and Pneumovax (Streptococcus pneumoniae). suitable imaging (such as CT). FBC, crossmatch, clotting, and U&Es. general evaluation of anesthesia. Prior to surgery, embolization may help to lessen vascularity.
Close observation follows surgery. Blood tests show temporary neutrophilia, changes in the quantity and size of platelets, nucleated red blood cells, and target cells after surgery.
Long-term: Prophylactic antibiotic coverage (penicillin V or erythromycin) is supplied to patients, and lifetime penicillin is provided. Prior to discharge following an emergency splenectomy, immunization should be administered (may not be as effective if concurrent sepsis). A health alert card and written information should be provided to patients. recommendations for yearly influenza shots.
Procedure
Incision: In trauma cases, an upper midline incision is made to provide quick access. Nowadays, minimally invasive (laparoscopic) splenectomy is frequently carried out in cases that are elective. For the latter, the patient is typically positioned with the left arm up and the body in a right-lateral decubitus position, which permits the spleen to dangle from its diaphragmatic attachments and aids with dissection.
Open: The diaphragmatic attachments are split in trauma patients, and the spleen is medially mobilized with packing behind it. To quickly stop bleeding, the splenic hilum's vessels are split and ligated. A more controlled dissection is carried out in non-emergency situations, dividing and ligating the short gastric arteries, as well as mobilizing the spleen. The splenic artery and vein are severed and tied up close to the splenic hilum, being cautious not to damage the pancreatic tail. meticulous examination for splenic bed hemostasis. Following surgery, a drain is frequently positioned in the left upper quadrant. In a laparoscopic splenectomy, the spleen is removed via a lower incision and either bagged or, in rare cases, shattered after the hilar arteries are tied using a laparoscopic linear stapler after dissection.
Complications
Short-term: subphrenic collection or abscess, pancreatic fistula, bleeding, stomach dilatation, and infection.
Long-term: "Postsplenectomy infection (OPSI) overwhelming sepsis, especially encapsulated organisms." increased malaria risk when visiting regions that are endemic.
Indications
traumatic causes rupture following an abdominal blunt injury or an iatrogenic injury during intraabdominal surgery.
hematological Previously, immunological thrombocytopaenia, myelofibrosis, autoimmune hemolytic anemias, elliptocytosis, and hereditary spherocytosis were used to stage haematological diseases such Hodgkins disease.
Other procedures include the management of splenic cysts and tumors, as well as radical gastrectomies and pancreatectomies, oesophagogastric varices, and splenic artery aneurysms.
Anatomy
The spleen's long axis runs along the 10th rib, and it is located posteriorly in the left upper quadrant of the abdomen, near the 9th and 11th ribs. It is encircled by the peritoneum, which extends from the hilum to the stomach's greater curvature and, in turn, to the left kidney as the splenorenal ligament (which includes the tail of the pancreas) and the gastrosplenic ligament (which contains short gastric and left gastroepiploic vessels), respectively. Additionally, it possesses avascular ligamentous attachments, such as the splenocolic and phrenosplenic ligaments.
Primary roles include immunosurveillance, which involves removing senescent red blood cells and removing pathogens from the bloodstream, as well as immunoglobulin and complement system components synthesis. Splenunculi, or accessory spleens, are common (5–15%).
Vascular: The splenic vein, which originates from the celiac trunk and joins the superior mesenteric vein to form the portal vein, drains the venous portion of the splenic artery below the pancreas.
Investing in education
Pre-op: Two weeks prior to surgery is the ideal time to receive vaccinations against encapsulated organisms, such as Men C (Neisseria meningitidis), Hib (Haemophilus influenzae), and Pneumovax (Streptococcus pneumoniae). suitable imaging (such as CT). FBC, crossmatch, clotting, and U&Es. general evaluation of anesthesia. Prior to surgery, embolization may help to lessen vascularity.
Close observation follows surgery. Blood tests show temporary neutrophilia, changes in the quantity and size of platelets, nucleated red blood cells, and target cells after surgery.
Long-term: Prophylactic antibiotic coverage (penicillin V or erythromycin) is supplied to patients, and lifetime penicillin is provided. Prior to discharge following an emergency splenectomy, immunization should be administered (may not be as effective if concurrent sepsis). A health alert card and written information should be provided to patients. recommendations for yearly influenza shots.
Procedure
Incision: In trauma cases, an upper midline incision is made to provide quick access. Nowadays, minimally invasive (laparoscopic) splenectomy is frequently carried out in cases that are elective. For the latter, the patient is typically positioned with the left arm up and the body in a right-lateral decubitus position, which permits the spleen to dangle from its diaphragmatic attachments and aids with dissection.
Open: The diaphragmatic attachments are split in trauma patients, and the spleen is medially mobilized with packing behind it. To quickly stop bleeding, the splenic hilum's vessels are split and ligated. A more controlled dissection is carried out in non-emergency situations, dividing and ligating the short gastric arteries, as well as mobilizing the spleen. The splenic artery and vein are severed and tied up close to the splenic hilum, being cautious not to damage the pancreatic tail. meticulous examination for splenic bed hemostasis. Following surgery, a drain is frequently positioned in the left upper quadrant. In a laparoscopic splenectomy, the spleen is removed via a lower incision and either bagged or, in rare cases, shattered after the hilar arteries are tied using a laparoscopic linear stapler after dissection.
Complications
Short-term: subphrenic collection or abscess, pancreatic fistula, bleeding, stomach dilatation, and infection.
Long-term: "Postsplenectomy infection (OPSI) overwhelming sepsis, especially encapsulated organisms." increased malaria risk when visiting regions that are endemic.
- Published on
Surgery - Stomas
Indications for Stomas
an incision made in surgery that connects the bladder or intestine to a bodily surface. Ileostomy, colostomy, and urostomy are the most common types of stomas; oesophagostomy, gastrostomy, jejunostomy, and caecostomy are among the others. End or loop stomas, either permanent or temporary. Malignancy in inflammatory bowel disease is optional. After a panproctocolectomy for familial polyposis or ulcerative colitis, stop ileostomies. following abdominoperineal excision for low rectal carcinomas, permanent colostomies. Loop stomas are used to temporarily divert bowel contents from sick sections of the intestines in order to safeguard distal surgery, such as an ileoanal pouch or low colorectal anastomosis, or to restore the anal sphincter.
Emergency: Ischemic bowel illness, inflammatory bowel damage, perforation, blockage, and toxic megacolon. During a Hartmann procedure, the distal end of the divided bowel is sealed or made into a mucous fistula, and the diseased distal colon is removed with the creation of an end colostomy.
Anatomy
End stoma: To create the stoma, the colon is divided and its proximal end is brought through the abdominal wall. The distal end can form a double barrel stoma in the same opening, be closed and left in the belly, or be brought out through a different incision called a mucous fistula.
Loop stomas: A stoma with two lumens is created by raising a bowel loop to the surface, opening it, then folding it back on itself. may be simpler to shut. A certain amount of "spillover" of the nearest contents.
Ileostomies: Located in the right iliac fossa, albeit not necessarily. They are designed with a spout that protrudes 2.5 cm above the skin's surface because the discharge is irritating. Liquid output occurs at a rate of 1-2 L per day, however it may decrease after a few weeks.
Colostomies: The stoma is flush with the skin and is typically located in the LIF, though it can be anywhere. Depending on the diet, the output is sporadic and has a more solid consistency (although transverse colostomies can produce semi-liquid, which can be more challenging to control).
Appliances for stomas: Comprised of a flange, which covers and shields the skin surrounding the stoma, and a pouch. There could be one or two pieces in the flange; when the pouch is changed, the second component stays affixed to the skin for a few days. Additionally, some bags feature exit drains for liquid outflow (ileostomies, for example). The smell of flatus can be lessened by using charcoal filters.
Investigations
Pre-op: Stoma placement and counseling are crucial, however they aren't always feasible in emergency cases. Specialist nurses in stoma care are essential. Pre-operative stomas should be identified so the patient can see it; skinfolds, scars, bony prominences, and the belt line should all be avoided. You might need to prepare your intestines. It is frequently necessary to have distal contrast investigations before stoma reversal. Prophylactic DVT after surgery. Support and education for patients in managing their stomas.
Procedure
Skin incision: A circular skin incision is made at the designated stoma site (using the rectus muscle to place a stoma reduces the risk of parastomal hernia development). A cut is made in the skin, the fascia is separated, the muscle is split, and the peritoneum is opened (to allow room for two fingers).
Formation of a stoma: The bowel's loop or end is brought out through the aperture. This gut should be well-vascularized, stress-free, and trauma-free. The primary incision has been treated and sealed. If the bowel is a loop or has been stapled in the past, it is opened, and the edges are cleansed. The bowel is turned inside out and the skin is sutured around the margins. Next, a transparent stoma bag is placed to enable routine stoma examination.
Complications
40% for ileostomies and 20% for colostomies, with 15% requiring surgical repair, are relatively common.
Death: becomes apparent a few hours after surgery and necessitates stoma modification because it compromises the bowel's blood flow during stoma development.
Haemorrhage: In most cases, only little bleeding needs medical attention. Practical: either constipation or diarrhea. Large volume liquid output from ileostomies can cause electrolyte imbalances and dehydration, which can be treated with fluid replacement and prescription drugs like codeine and loperamide. Hydration is crucial because urinary tract calculi are more likely in those who have an ileostomy.
Additional conditions include skin irritation, leaks, prolapses or retractions that occasionally need to be refashioned, stenosis (which can sometimes be widened using a dilator), parastomal hernias, abscesses, or fistulas.
Psychological: Anxiety, shame, or issues with body image.
Indications for Stomas
an incision made in surgery that connects the bladder or intestine to a bodily surface. Ileostomy, colostomy, and urostomy are the most common types of stomas; oesophagostomy, gastrostomy, jejunostomy, and caecostomy are among the others. End or loop stomas, either permanent or temporary. Malignancy in inflammatory bowel disease is optional. After a panproctocolectomy for familial polyposis or ulcerative colitis, stop ileostomies. following abdominoperineal excision for low rectal carcinomas, permanent colostomies. Loop stomas are used to temporarily divert bowel contents from sick sections of the intestines in order to safeguard distal surgery, such as an ileoanal pouch or low colorectal anastomosis, or to restore the anal sphincter.
Emergency: Ischemic bowel illness, inflammatory bowel damage, perforation, blockage, and toxic megacolon. During a Hartmann procedure, the distal end of the divided bowel is sealed or made into a mucous fistula, and the diseased distal colon is removed with the creation of an end colostomy.
Anatomy
End stoma: To create the stoma, the colon is divided and its proximal end is brought through the abdominal wall. The distal end can form a double barrel stoma in the same opening, be closed and left in the belly, or be brought out through a different incision called a mucous fistula.
Loop stomas: A stoma with two lumens is created by raising a bowel loop to the surface, opening it, then folding it back on itself. may be simpler to shut. A certain amount of "spillover" of the nearest contents.
Ileostomies: Located in the right iliac fossa, albeit not necessarily. They are designed with a spout that protrudes 2.5 cm above the skin's surface because the discharge is irritating. Liquid output occurs at a rate of 1-2 L per day, however it may decrease after a few weeks.
Colostomies: The stoma is flush with the skin and is typically located in the LIF, though it can be anywhere. Depending on the diet, the output is sporadic and has a more solid consistency (although transverse colostomies can produce semi-liquid, which can be more challenging to control).
Appliances for stomas: Comprised of a flange, which covers and shields the skin surrounding the stoma, and a pouch. There could be one or two pieces in the flange; when the pouch is changed, the second component stays affixed to the skin for a few days. Additionally, some bags feature exit drains for liquid outflow (ileostomies, for example). The smell of flatus can be lessened by using charcoal filters.
Investigations
Pre-op: Stoma placement and counseling are crucial, however they aren't always feasible in emergency cases. Specialist nurses in stoma care are essential. Pre-operative stomas should be identified so the patient can see it; skinfolds, scars, bony prominences, and the belt line should all be avoided. You might need to prepare your intestines. It is frequently necessary to have distal contrast investigations before stoma reversal. Prophylactic DVT after surgery. Support and education for patients in managing their stomas.
Procedure
Skin incision: A circular skin incision is made at the designated stoma site (using the rectus muscle to place a stoma reduces the risk of parastomal hernia development). A cut is made in the skin, the fascia is separated, the muscle is split, and the peritoneum is opened (to allow room for two fingers).
Formation of a stoma: The bowel's loop or end is brought out through the aperture. This gut should be well-vascularized, stress-free, and trauma-free. The primary incision has been treated and sealed. If the bowel is a loop or has been stapled in the past, it is opened, and the edges are cleansed. The bowel is turned inside out and the skin is sutured around the margins. Next, a transparent stoma bag is placed to enable routine stoma examination.
Complications
40% for ileostomies and 20% for colostomies, with 15% requiring surgical repair, are relatively common.
Death: becomes apparent a few hours after surgery and necessitates stoma modification because it compromises the bowel's blood flow during stoma development.
Haemorrhage: In most cases, only little bleeding needs medical attention. Practical: either constipation or diarrhea. Large volume liquid output from ileostomies can cause electrolyte imbalances and dehydration, which can be treated with fluid replacement and prescription drugs like codeine and loperamide. Hydration is crucial because urinary tract calculi are more likely in those who have an ileostomy.
Additional conditions include skin irritation, leaks, prolapses or retractions that occasionally need to be refashioned, stenosis (which can sometimes be widened using a dilator), parastomal hernias, abscesses, or fistulas.
Psychological: Anxiety, shame, or issues with body image.
- Published on
Surgery - Suturing
Indications
surgical cuts or wounds that need to be closed. In order to promote quick healing and optimal cosmesis, the goal is to align the edges of the wounds without stress.
Anatomy
The epidermis, or outside keratinized epithelium, the dermis, or underlying fibroelastic layer containing blood vessels, lymphatics, and nerves, and the subcutaneous tissue, or deep layer of varying thickness made up primarily of adipose tissue, are the three layers that make up the skin.
Investigations
Prior to surgery: history of allergies to skin prep or antibiotics; informed consent. Proper cleansing and dressing of severe injuries. It is imperative to take into account one's tetanus status and administer booster shots or immunoglobulins as necessary, along with vaccinations. If there is a chance of a foreign body, such glass, or a related bone damage, radiographs can be required.
Advice on wound care, analgesics, dressings, and antibiotics only when necessary follow surgery.
Procedure
Simple cuts may mostly be closed.It is advisable to refer patients with more complicated injuries—such as those involving the face or other traumas, such tendon damage—to the proper specialists, like plastic surgeons. Antibiotics should be used if linked to a fracture, namely an open fracture. Primary closure is avoided and antibiotics are used for bite wounds, particularly those resulting from bites on humans.
Local anaesthesia: After skin preparation, the area surrounding the wound is infused with local anesthetic, being sure to aspirate before injecting to prevent intravascular injection. It is never advisable to inject local anesthetic combined with adrenaline close to fingers or in regions like the nose, ear, or penis.
Examining and cleaning the wound: The wound is carefully cleaned, irrigated, and inspected. It could need to be scrubbed if it's dirty. The wound is examined to look for any underlying injuries, such as to tendons.
Sutures can be categorized as either natural or synthetic, absorbable or non-absorbable, and as single or multifilament (braided). Subcutaneous absorbable sutures are utilized when suturing deep tissues. In traumatic wounds, non-absorbable sutures are always employed. This prevents the entire wound from being compromised in the event that an infection occurs, allowing for the removal of one or a small number.
In surgical wounds, absorbable sutures are frequently utilized. A finer 5–0 or 6–0 stitch for the face, 3–0 or 4–0 for the trunk and limbs, and 2–0 for the scalp are the types of sutures that are utilized depending on the place.
Suturing: For a diagrammatic description of types, see to Fig. 26. When using aseptic method, wounds should be properly prepped and draped. Simple discontinuous (broken) sutures are frequently employed. For deeper wounds, vertical mattress stitches may be employed because they allow for adequate skin edge eversion.
Good cosmesis and close wound approximation are made possible by subcuticular suturing.
Dressing: The wound is covered with a dry dressing. Only as long as necessary is the length of time that stitches are left in place to maintain the incision. Face stitches come out in a matter of two to five days, but sutures on the limbs and abdominal wall typically take ten days to fall out.
Complications
Inadequate aesthetics: sutures may serve as a breeding ground for infection, abscess, granuloma, sinus, wound dehiscence, and scarring.
Indications
surgical cuts or wounds that need to be closed. In order to promote quick healing and optimal cosmesis, the goal is to align the edges of the wounds without stress.
Anatomy
The epidermis, or outside keratinized epithelium, the dermis, or underlying fibroelastic layer containing blood vessels, lymphatics, and nerves, and the subcutaneous tissue, or deep layer of varying thickness made up primarily of adipose tissue, are the three layers that make up the skin.
Investigations
Prior to surgery: history of allergies to skin prep or antibiotics; informed consent. Proper cleansing and dressing of severe injuries. It is imperative to take into account one's tetanus status and administer booster shots or immunoglobulins as necessary, along with vaccinations. If there is a chance of a foreign body, such glass, or a related bone damage, radiographs can be required.
Advice on wound care, analgesics, dressings, and antibiotics only when necessary follow surgery.
Procedure
Simple cuts may mostly be closed.It is advisable to refer patients with more complicated injuries—such as those involving the face or other traumas, such tendon damage—to the proper specialists, like plastic surgeons. Antibiotics should be used if linked to a fracture, namely an open fracture. Primary closure is avoided and antibiotics are used for bite wounds, particularly those resulting from bites on humans.
Local anaesthesia: After skin preparation, the area surrounding the wound is infused with local anesthetic, being sure to aspirate before injecting to prevent intravascular injection. It is never advisable to inject local anesthetic combined with adrenaline close to fingers or in regions like the nose, ear, or penis.
Examining and cleaning the wound: The wound is carefully cleaned, irrigated, and inspected. It could need to be scrubbed if it's dirty. The wound is examined to look for any underlying injuries, such as to tendons.
Sutures can be categorized as either natural or synthetic, absorbable or non-absorbable, and as single or multifilament (braided). Subcutaneous absorbable sutures are utilized when suturing deep tissues. In traumatic wounds, non-absorbable sutures are always employed. This prevents the entire wound from being compromised in the event that an infection occurs, allowing for the removal of one or a small number.
In surgical wounds, absorbable sutures are frequently utilized. A finer 5–0 or 6–0 stitch for the face, 3–0 or 4–0 for the trunk and limbs, and 2–0 for the scalp are the types of sutures that are utilized depending on the place.
Suturing: For a diagrammatic description of types, see to Fig. 26. When using aseptic method, wounds should be properly prepped and draped. Simple discontinuous (broken) sutures are frequently employed. For deeper wounds, vertical mattress stitches may be employed because they allow for adequate skin edge eversion.
Good cosmesis and close wound approximation are made possible by subcuticular suturing.
Dressing: The wound is covered with a dry dressing. Only as long as necessary is the length of time that stitches are left in place to maintain the incision. Face stitches come out in a matter of two to five days, but sutures on the limbs and abdominal wall typically take ten days to fall out.
Complications
Inadequate aesthetics: sutures may serve as a breeding ground for infection, abscess, granuloma, sinus, wound dehiscence, and scarring.
- Published on
Surgery - Thyroidectomy
Indications
When a FNA is unclear, a thyroid mass can be definitively diagnosed as either benign or malignant. Symptomatic goiters (cosmesis or pressure effects). as a treatment for toxic nodular goitre, graves disease, or thyrotoxicosis.
Anatomy
The thyroid isthmus, which sits above the second and third tracheal rings, connects the thyroid gland's two lobes. The gland is located deep to the strap muscles and is encased in the pretracheal fascia.
Vascular: The gland is supplied by the lower thyroid artery from the subclavian thyrocervical trunk, the superior thyroid artery from the external carotid, and occasionally the thyroidea ima artery from the brachiocephalic or aortic arch. The internal jugular vein receives venous drainage from the superior, middle, and inferior thyroid veins.
Investigations
Bloods: Complete blood count, renal function, calcium, and thyroid function tests. Patients with hypo- or hyperthyroidism should receive medical treatment prior to surgery.
Ultrasound: To identify a goiter or characterize a lesion. To evaluate tracheal constriction and retrosternal extension, use a CT scan. scintigraphy in nuclear medicine, where applicable.
FNA or biopsy guided by ultrasound: For cytological diagnosis.
Indirect laryngoscopy: To evaluate vocal cord health prior to surgery.
After surgery: Continue to monitor and replace calcium as needed. replacement of thyroid.
Procedure
Head up, neck stretched, in a reverse Trendelenburg position.
Incision: Two fingerbreadths above the suprasternal notch, in the skin crease collar.
To prevent harm to the anterior jugular veins, subcutaneous tissue and platysma are split, and flaps are elevated superiorly to the thyroid cartilage and inferiorly to the sternum.
Thyroid exposure and mobilization: The subplatysma flaps are retracted using a Jolls retractor. To reveal the thyroid gland underneath, the midline raphe is divided, separating the strap muscles. The thyroid gland is visible. Carefully ligating the middle thyroid vein(s) involves locating and avoiding parathyroids, which are little tan glands. The vessels in the superior pole are separated, snipped off from the gland, and double ligated. The tracheooesophageal groove contains the recurrent laryngeal nerve, which needs to be properly identified and protected to prevent diathermy in the area around it. Though it normally runs between or in front of the lower pole vessels, it is usually deep. The thyroid is properly ligated in close proximity to the inferior thyroid vascular pedicle. Absorbable sutures are used to oversew the isthmus in cases of hemithyroidectomy.
Close: Maintaining proper hemostasis is crucial. A lot of surgeons choose to leave a vacuum drain in place.
Three layers make up the closure: the skin, platysma, subcutaneous tissue, and the opposition of the strap muscles.
Complications
Bleeding, hypocalcemia, hypothyroidism, wound infection, vocal abnormalities due to recurrent laryngeal nerve injury, breathing difficulties brought on by a hemorrhage compressing the trachea or bilaterally.
Indications
When a FNA is unclear, a thyroid mass can be definitively diagnosed as either benign or malignant. Symptomatic goiters (cosmesis or pressure effects). as a treatment for toxic nodular goitre, graves disease, or thyrotoxicosis.
Anatomy
The thyroid isthmus, which sits above the second and third tracheal rings, connects the thyroid gland's two lobes. The gland is located deep to the strap muscles and is encased in the pretracheal fascia.
Vascular: The gland is supplied by the lower thyroid artery from the subclavian thyrocervical trunk, the superior thyroid artery from the external carotid, and occasionally the thyroidea ima artery from the brachiocephalic or aortic arch. The internal jugular vein receives venous drainage from the superior, middle, and inferior thyroid veins.
Investigations
Bloods: Complete blood count, renal function, calcium, and thyroid function tests. Patients with hypo- or hyperthyroidism should receive medical treatment prior to surgery.
Ultrasound: To identify a goiter or characterize a lesion. To evaluate tracheal constriction and retrosternal extension, use a CT scan. scintigraphy in nuclear medicine, where applicable.
FNA or biopsy guided by ultrasound: For cytological diagnosis.
Indirect laryngoscopy: To evaluate vocal cord health prior to surgery.
After surgery: Continue to monitor and replace calcium as needed. replacement of thyroid.
Procedure
Head up, neck stretched, in a reverse Trendelenburg position.
Incision: Two fingerbreadths above the suprasternal notch, in the skin crease collar.
To prevent harm to the anterior jugular veins, subcutaneous tissue and platysma are split, and flaps are elevated superiorly to the thyroid cartilage and inferiorly to the sternum.
Thyroid exposure and mobilization: The subplatysma flaps are retracted using a Jolls retractor. To reveal the thyroid gland underneath, the midline raphe is divided, separating the strap muscles. The thyroid gland is visible. Carefully ligating the middle thyroid vein(s) involves locating and avoiding parathyroids, which are little tan glands. The vessels in the superior pole are separated, snipped off from the gland, and double ligated. The tracheooesophageal groove contains the recurrent laryngeal nerve, which needs to be properly identified and protected to prevent diathermy in the area around it. Though it normally runs between or in front of the lower pole vessels, it is usually deep. The thyroid is properly ligated in close proximity to the inferior thyroid vascular pedicle. Absorbable sutures are used to oversew the isthmus in cases of hemithyroidectomy.
Close: Maintaining proper hemostasis is crucial. A lot of surgeons choose to leave a vacuum drain in place.
Three layers make up the closure: the skin, platysma, subcutaneous tissue, and the opposition of the strap muscles.
Complications
Bleeding, hypocalcemia, hypothyroidism, wound infection, vocal abnormalities due to recurrent laryngeal nerve injury, breathing difficulties brought on by a hemorrhage compressing the trachea or bilaterally.
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Surgery - Tracheostomy
Indications
Longer-term ventilatory support (or weaning) is the most prevalent indication; additional conditions include head and neck surgery, neurological impairment (such as coma, stroke, and motor neurone disease), trauma, and bilateral vocal cord paralysis.
Anatomy
The posterior (membranous) portion of the trachea is composed of incomplete semicircular cartilage rings. The front surface of the trachea is convex and is covered (superiorly to inferiorly) by the cervical fascia, the inferior thyroid veins, the thyroid gland's isthmus (over the second and third rings), and the neck's strap muscles. The inferior thyroid veins and recurrent laryngeal nerves are located laterally in the tracheooesophageal grooves and are susceptible to damage.
A tracheostomy can be cuffed or uncuffed, made of plastic, silicone, or metal, or fenestrated, which permits speech since the tube has a hole that lets air pass through the upper airway in the event that the external opening is blocked. Most have an obdurator that facilitates insertion but is removed once in place, an exterior cannula, and an interior cannula.
Investigations
carried out while under general anesthesia.
Pre-procedure: Pre-procedure counseling regarding risks and benefits is advised whenever it is feasible.
After surgery, meticulous attention is necessary. Regular sterile suction of retained secretions along with humidified gases. Positive pressure breathing is possible with cuffed tracheal tubes, although pressure necrosis can be avoided by routinely monitoring and deflating the tube. The tracheostomy tube can be changed after 5-7 days.
Actions
Access: The patient's neck is stretched in this position. In the middle of the cricoid cartilage and the sternal notch, a vertical or transverse incision is made. In order to reveal the trachea, cut through the platysma and subcutaneous tissue, split and retract the strap muscles, and separate the thyroid isthmus if required.
Surgical tracheostomy: Cut the trachea longitudinally or in a U-shape, creating two to three tracheal rings. In order to facilitate replacement in the event that the tracheostomy tube becomes dislodged, stay sutures can be positioned laterally to aid in maintaining the trachea open.
Put in a tracheostomy tube (removing the endotracheal tube at the same time might be required). The tracheostomy tube's balloon should be inflated before being sutured to the skin.
In ITU/HDU settings, percutaneous tracheostomy can be carried out. uses a bronchoscope and the Seldinger technique to create a percutaneous tracheal cannulation. A guidewire and progressive dilators are then inserted before the tracheostomy tube is inserted. Patients with complex anatomy, obesity, coagulopathy, or thyroid enlargement should not use this treatment.
Complications
Short-term: bleeding, infection, subcutaneous emphysema, pneumothorax or pneumomediastinum, damage to surrounding structures, such as oesophagus, arteries, recurrent laryngeal nerves, tube displacement, tracheal ulcers, tracheitis, mucus plugging, aspiration.
Prolonged: tracheomalacia, overgranulation, tracheo-oesophageal fistula (<1%), tracheocutaneous fistula, tracheal stenosis.
Indications
Longer-term ventilatory support (or weaning) is the most prevalent indication; additional conditions include head and neck surgery, neurological impairment (such as coma, stroke, and motor neurone disease), trauma, and bilateral vocal cord paralysis.
Anatomy
The posterior (membranous) portion of the trachea is composed of incomplete semicircular cartilage rings. The front surface of the trachea is convex and is covered (superiorly to inferiorly) by the cervical fascia, the inferior thyroid veins, the thyroid gland's isthmus (over the second and third rings), and the neck's strap muscles. The inferior thyroid veins and recurrent laryngeal nerves are located laterally in the tracheooesophageal grooves and are susceptible to damage.
A tracheostomy can be cuffed or uncuffed, made of plastic, silicone, or metal, or fenestrated, which permits speech since the tube has a hole that lets air pass through the upper airway in the event that the external opening is blocked. Most have an obdurator that facilitates insertion but is removed once in place, an exterior cannula, and an interior cannula.
Investigations
carried out while under general anesthesia.
Pre-procedure: Pre-procedure counseling regarding risks and benefits is advised whenever it is feasible.
After surgery, meticulous attention is necessary. Regular sterile suction of retained secretions along with humidified gases. Positive pressure breathing is possible with cuffed tracheal tubes, although pressure necrosis can be avoided by routinely monitoring and deflating the tube. The tracheostomy tube can be changed after 5-7 days.
Actions
Access: The patient's neck is stretched in this position. In the middle of the cricoid cartilage and the sternal notch, a vertical or transverse incision is made. In order to reveal the trachea, cut through the platysma and subcutaneous tissue, split and retract the strap muscles, and separate the thyroid isthmus if required.
Surgical tracheostomy: Cut the trachea longitudinally or in a U-shape, creating two to three tracheal rings. In order to facilitate replacement in the event that the tracheostomy tube becomes dislodged, stay sutures can be positioned laterally to aid in maintaining the trachea open.
Put in a tracheostomy tube (removing the endotracheal tube at the same time might be required). The tracheostomy tube's balloon should be inflated before being sutured to the skin.
In ITU/HDU settings, percutaneous tracheostomy can be carried out. uses a bronchoscope and the Seldinger technique to create a percutaneous tracheal cannulation. A guidewire and progressive dilators are then inserted before the tracheostomy tube is inserted. Patients with complex anatomy, obesity, coagulopathy, or thyroid enlargement should not use this treatment.
Complications
Short-term: bleeding, infection, subcutaneous emphysema, pneumothorax or pneumomediastinum, damage to surrounding structures, such as oesophagus, arteries, recurrent laryngeal nerves, tube displacement, tracheal ulcers, tracheitis, mucus plugging, aspiration.
Prolonged: tracheomalacia, overgranulation, tracheo-oesophageal fistula (<1%), tracheocutaneous fistula, tracheal stenosis.
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Surgery - Liver Resection
Indications
Elective: Liver tumors: primary and secondary, benign and malignant.
Guidelines regarding colorectal metastases: liver disease that can be completely removed with a resection margin of greater than 5 mm, leaving at least three normal liver segments (or more if cirrhosis), solitary or metastases restricted to a localized area of the liver, without extrahepatic disease or limited to resectable local recurrence.
Infections: Some infections, such hydatid cysts, may require excision.
Live-related liver donation is removing a portion of the donor's liver and transplanting the recipient with the removed liver.
Trauma in an emergency if measures like packing, suture ligation, or bimanual compression have not been able to stop the bleeding (resectional debridement of devitalized liver tissue, for example).
Anatomy
The liver is divided into eight segments (of Couinaud), each with its own branches of the arterial, venous, and biliary systems. The liver has four lobes: the right, left, quadrate, and caudate (the latter two physically part of the right lobe but functionally part of the left). I through VIII are their numbers (from left to right). Segmental or nonsegmental resections are possible. Normal humans can regenerate up to 70% of their body, which is consistent with survival.
Vascular supply: The portal vein (70%) and hepatic artery (30%) each supply 1.5 liters of blood per minute to the liver. The inferior vena cava receives the three hepatic veins that are formed by venous flow.
Investigational studies
Patients must be chosen based on stringent qualifying requirements.
Imaging: USS, CT, and MRI may be required for resection planning and staging.
Liver function before to surgery: As an illustration, children–Pugh grading (based on prothrombin time, bilirubin, albumin, and the presence of ascites or encephalopathy): because of the small reserve of the remnant cirrhotic liver, cirrhosis prevents major resections.
Blood: LFT, clotting, U&Es, and FBC.
Blood-based products: Before surgery, blood and FFP should be cross-matched because to the increased risk of bleeding and the need for transfusions.
Actions
should only be completed in facilities with the necessary expertise as specialists.
Rooftop incisions or increasingly laparoscopic procedures are used for incisions.
Investigation: Using intraoperative ultrasound, a tumor's boundaries and the extent to which it has affected nearby structures (such as the biliary tree and arteries) can be determined.
Vascular occlusion: Two methods are used to temporarily obstruct the inflow into the liver: either the Glisson's capsule of the segment is selectively clamped, or a tourniquet is placed around the portal triad (Pringle's technique, up to 20 min).
Liver resection: A variety of procedures, such as the use of an ultrasonic dissector and harmonic scalpel to carefully ligate sutures or cut arteries or ducts, can be used to achieve parenchymal transaction. Lastly, a thorough inspection for bleeding or bile leakage should be performed on the resection surface.
Closure of the liver: Resection surfaces can be sealed using fibrin adhesive or a collagen sponge.
Complications
bleeding, liver failure, biliary or peritonitis-related sepsis, and related pulmonary problems (such as pleural effusion).
Indications
Elective: Liver tumors: primary and secondary, benign and malignant.
Guidelines regarding colorectal metastases: liver disease that can be completely removed with a resection margin of greater than 5 mm, leaving at least three normal liver segments (or more if cirrhosis), solitary or metastases restricted to a localized area of the liver, without extrahepatic disease or limited to resectable local recurrence.
Infections: Some infections, such hydatid cysts, may require excision.
Live-related liver donation is removing a portion of the donor's liver and transplanting the recipient with the removed liver.
Trauma in an emergency if measures like packing, suture ligation, or bimanual compression have not been able to stop the bleeding (resectional debridement of devitalized liver tissue, for example).
Anatomy
The liver is divided into eight segments (of Couinaud), each with its own branches of the arterial, venous, and biliary systems. The liver has four lobes: the right, left, quadrate, and caudate (the latter two physically part of the right lobe but functionally part of the left). I through VIII are their numbers (from left to right). Segmental or nonsegmental resections are possible. Normal humans can regenerate up to 70% of their body, which is consistent with survival.
Vascular supply: The portal vein (70%) and hepatic artery (30%) each supply 1.5 liters of blood per minute to the liver. The inferior vena cava receives the three hepatic veins that are formed by venous flow.
Investigational studies
Patients must be chosen based on stringent qualifying requirements.
Imaging: USS, CT, and MRI may be required for resection planning and staging.
Liver function before to surgery: As an illustration, children–Pugh grading (based on prothrombin time, bilirubin, albumin, and the presence of ascites or encephalopathy): because of the small reserve of the remnant cirrhotic liver, cirrhosis prevents major resections.
Blood: LFT, clotting, U&Es, and FBC.
Blood-based products: Before surgery, blood and FFP should be cross-matched because to the increased risk of bleeding and the need for transfusions.
Actions
should only be completed in facilities with the necessary expertise as specialists.
Rooftop incisions or increasingly laparoscopic procedures are used for incisions.
Investigation: Using intraoperative ultrasound, a tumor's boundaries and the extent to which it has affected nearby structures (such as the biliary tree and arteries) can be determined.
Vascular occlusion: Two methods are used to temporarily obstruct the inflow into the liver: either the Glisson's capsule of the segment is selectively clamped, or a tourniquet is placed around the portal triad (Pringle's technique, up to 20 min).
Liver resection: A variety of procedures, such as the use of an ultrasonic dissector and harmonic scalpel to carefully ligate sutures or cut arteries or ducts, can be used to achieve parenchymal transaction. Lastly, a thorough inspection for bleeding or bile leakage should be performed on the resection surface.
Closure of the liver: Resection surfaces can be sealed using fibrin adhesive or a collagen sponge.
Complications
bleeding, liver failure, biliary or peritonitis-related sepsis, and related pulmonary problems (such as pleural effusion).
