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Pathology - Hypertension
Definition • Consistently raised blood pressure at a threshold where the advantages of therapy are unequivocal for the individual.
All patients with blood pressure equal to or over 160/100 mmHg should receive treatment. The decision to manage blood pressure at 140/90 mmHg is contingent upon additional risk factors.
Epidemiology:
Highly prevalent.
• Significant geographical and racial heterogeneity. • The incidence is estimated to be as high as 25–30% in Western nations.
Aetiology
• Ninety-five percent are of indeterminate origin ('important'). Five percent of instances are attributed to chronic kidney illness, phaeochromocytoma, adrenal cortical adenoma,coarctation of the aorta, pregnancy, and the oral contraceptive pill.
Pathogenesis
• Highly intricate, involving numerous factors such as sodium consumption and genetic predisposition, which seem to interact to induce hypertension.
• Chronic hypertension facilitates atherosclerosis in medium and large systemic arteries and induces thickening of minor arteries (arteriosclerosis) and arterioles (arteriolosclerosis). Hypertension elevates the workload of the left ventricle, resulting in left ventricular hypertrophy and ultimately left ventricular failure.
Presentation
• The majority of patients are asymptomatic and are diagnosed during blood pressure assessment. • Individuals exhibit symptoms indicative of end-organ damage resulting from hypertension, such as intracerebral hemorrhage, left ventricular failure, and chronic renal disease.
Prognosis
• Inadequate treatment of the disease elevates the risk of left ventricular failure, intracerebral hemorrhage, chronic renal disease, and aortic dissection.
Definition • Consistently raised blood pressure at a threshold where the advantages of therapy are unequivocal for the individual.
All patients with blood pressure equal to or over 160/100 mmHg should receive treatment. The decision to manage blood pressure at 140/90 mmHg is contingent upon additional risk factors.
Epidemiology:
Highly prevalent.
• Significant geographical and racial heterogeneity. • The incidence is estimated to be as high as 25–30% in Western nations.
Aetiology
• Ninety-five percent are of indeterminate origin ('important'). Five percent of instances are attributed to chronic kidney illness, phaeochromocytoma, adrenal cortical adenoma,coarctation of the aorta, pregnancy, and the oral contraceptive pill.
Pathogenesis
• Highly intricate, involving numerous factors such as sodium consumption and genetic predisposition, which seem to interact to induce hypertension.
• Chronic hypertension facilitates atherosclerosis in medium and large systemic arteries and induces thickening of minor arteries (arteriosclerosis) and arterioles (arteriolosclerosis). Hypertension elevates the workload of the left ventricle, resulting in left ventricular hypertrophy and ultimately left ventricular failure.
Presentation
• The majority of patients are asymptomatic and are diagnosed during blood pressure assessment. • Individuals exhibit symptoms indicative of end-organ damage resulting from hypertension, such as intracerebral hemorrhage, left ventricular failure, and chronic renal disease.
Prognosis
• Inadequate treatment of the disease elevates the risk of left ventricular failure, intracerebral hemorrhage, chronic renal disease, and aortic dissection.
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