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HYPERTENSION |
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ESSENTIAL (idiopathic; 95%) |
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SECONDARY HYPERTENSION: |
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renal causes: |
renal artery stenosis: |
fibromuscular [young age; affects distal 2/3]atheroma [older age group; origin of artery affected mostly] |
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renal parenchymal disease polycystic kidneys JG cell tumour / hyperplasia [Bartter's syndrome; but BP here is usually N]chronic renal disease (any cause) |
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endocrine disease: |
phaeochromocytoma [paroxysmal or sustained hypertension]Conn's syndrome (1° hyperaldosteronism)Cushing's syndrome acromegaly thyrotoxicosis |
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drugs: |
steroids alcohol oral contraceptive pill / oestrogens MAOI's clonidine withdrawal |
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other: |
coarctation of aorta acute intermittent porphyria pregnancy-induced hypertension raised intracranial pressure [+ bradycardia]polycythaemia rubra vera physiological [emotion, 'whitecoat HT', exercise; transient] |
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