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Surgery - Operative intervention in endocrine disorders
Diabetes: Specific Perioperative Risks
• Hypoglycemia, hyperglycemia, or ketoacidosis.
• Underlying diabetes mellitus-related comorbidities are frequently unrecognized (e.g., mild renal impairment, small-vessel coronary and cerebrovascular disease, mild autonomic neuropathy with concomitant diminished cardiovascular homeostatic responses).
• Susceptibility to infection and impaired wound healing. Increased sensitivity to pressure-induced skin necrosis.
Management of the diabetic patient
• Notify the anaesthetist, diabetologist, and any specialists engaged in the patient's continuous care, such as nephrologists.
• Determine whether the patient is orally managed, insulin-dependent (low or high demand), or brittle insulin-dependent, as the risk of perioperative complications escalates with each category. Diabetics should be prioritized on surgical schedules to facilitate predictable blood sugar management. Examine preoperative assessments for indications of further comorbidities. Ketoacidosis during the perioperative period is linked to significantly elevated morbidity and mortality and must be prevented at all costs.
Minor surgical procedure
• Administer oral medication as per standard regimen. • Insulin-controlled: discontinue preoperative insulin on the day of surgery; test blood sugar every 4 hours; resume regular insulin once the oral diet is reinstated.
Minor surgical procedure
• For oral administration, discontinue long-acting hypoglycemics prior to surgery. Assess blood sugar levels every four hours. Initiate intravenous insulin therapy if blood sugar levels surpass 15 mmol/L. • Insulin-controlled—initiate intravenous insulin sliding scale preoperatively once the patient is nil per os (NBM) and maintain until a normal diet is reinstated. Verify blood sugar levels every four hours. Reinitiate the standard insulin regimen (initially at fifty percent dosage) once the oral diet is established.
Urgent surgical intervention
• Verify the presence of pre-existing ketoacidosis. Utilize the medical treatment protocol to manage blood sugar levels and defer surgery until blood sugar is below 20 mmol/L, unless the situation is life-threatening. Utilize an intravenous insulin sliding scale for all patients to enhance blood sugar regulation. A standard IV sliding scale (soluble insulin with 5% glucose) is as follows: • Blood Sugar <4mmol />: administer infusion of 0.5U/h and consider medical evaluation.
• Blood Sugar 4–15 mmol/L: infusion 2.0 U/h
. • Blood sugar 15–20 mmol/L: provide infusion at 4.0 U/h.
• Blood sugar above 20 mmol/L: administer infusion of 4.0 U/h, consult the diabetology team, and contemplate treatment analogous to that for ketoacidosis.
Steroids: Specific Perioperative Risks
Oral steroids are utilized to manage various prevalent conditions, such as rheumatoid arthritis (RA), severe asthma, and chronic obstructive pulmonary disease (COPD). Steroids diminish neutrophil and fibroblast activity, impair immunological response, and induce lasting alterations in connective tissue. Prolonged administration of systemic steroids leads to adrenal suppression. Chronic steroid use is connected with the following issues. Addisonian (hypoadrenal) crisis
• Increased vulnerability to infection. • Inadequate wound healing, encompassing anastomotic leakage. • Osteoporosis. Patients utilizing long-term inhaled corticosteroids, such as for asthma and COPD, are not considered high risk due to negligible systemic absorption. Management of the patient receiving steroids: • If feasible, the steroid dosage should be reduced prior to surgery. Administer IV hydrocortisone 25–100 mg four times daily, approximately equivalent to 2.5–20 mg of prednisolone once daily, commencing on the morning before surgery and continuing until the patient can resume oral steroids.
Diabetes: Specific Perioperative Risks
• Hypoglycemia, hyperglycemia, or ketoacidosis.
• Underlying diabetes mellitus-related comorbidities are frequently unrecognized (e.g., mild renal impairment, small-vessel coronary and cerebrovascular disease, mild autonomic neuropathy with concomitant diminished cardiovascular homeostatic responses).
• Susceptibility to infection and impaired wound healing. Increased sensitivity to pressure-induced skin necrosis.
Management of the diabetic patient
• Notify the anaesthetist, diabetologist, and any specialists engaged in the patient's continuous care, such as nephrologists.
• Determine whether the patient is orally managed, insulin-dependent (low or high demand), or brittle insulin-dependent, as the risk of perioperative complications escalates with each category. Diabetics should be prioritized on surgical schedules to facilitate predictable blood sugar management. Examine preoperative assessments for indications of further comorbidities. Ketoacidosis during the perioperative period is linked to significantly elevated morbidity and mortality and must be prevented at all costs.
Minor surgical procedure
• Administer oral medication as per standard regimen. • Insulin-controlled: discontinue preoperative insulin on the day of surgery; test blood sugar every 4 hours; resume regular insulin once the oral diet is reinstated.
Minor surgical procedure
• For oral administration, discontinue long-acting hypoglycemics prior to surgery. Assess blood sugar levels every four hours. Initiate intravenous insulin therapy if blood sugar levels surpass 15 mmol/L. • Insulin-controlled—initiate intravenous insulin sliding scale preoperatively once the patient is nil per os (NBM) and maintain until a normal diet is reinstated. Verify blood sugar levels every four hours. Reinitiate the standard insulin regimen (initially at fifty percent dosage) once the oral diet is established.
Urgent surgical intervention
• Verify the presence of pre-existing ketoacidosis. Utilize the medical treatment protocol to manage blood sugar levels and defer surgery until blood sugar is below 20 mmol/L, unless the situation is life-threatening. Utilize an intravenous insulin sliding scale for all patients to enhance blood sugar regulation. A standard IV sliding scale (soluble insulin with 5% glucose) is as follows: • Blood Sugar <4mmol />: administer infusion of 0.5U/h and consider medical evaluation.
• Blood Sugar 4–15 mmol/L: infusion 2.0 U/h
. • Blood sugar 15–20 mmol/L: provide infusion at 4.0 U/h.
• Blood sugar above 20 mmol/L: administer infusion of 4.0 U/h, consult the diabetology team, and contemplate treatment analogous to that for ketoacidosis.
Steroids: Specific Perioperative Risks
Oral steroids are utilized to manage various prevalent conditions, such as rheumatoid arthritis (RA), severe asthma, and chronic obstructive pulmonary disease (COPD). Steroids diminish neutrophil and fibroblast activity, impair immunological response, and induce lasting alterations in connective tissue. Prolonged administration of systemic steroids leads to adrenal suppression. Chronic steroid use is connected with the following issues. Addisonian (hypoadrenal) crisis
• Increased vulnerability to infection. • Inadequate wound healing, encompassing anastomotic leakage. • Osteoporosis. Patients utilizing long-term inhaled corticosteroids, such as for asthma and COPD, are not considered high risk due to negligible systemic absorption. Management of the patient receiving steroids: • If feasible, the steroid dosage should be reduced prior to surgery. Administer IV hydrocortisone 25–100 mg four times daily, approximately equivalent to 2.5–20 mg of prednisolone once daily, commencing on the morning before surgery and continuing until the patient can resume oral steroids.
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