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Liddle's syndrome
Liddle's syndrome, also called Liddle syndrome and pseudohyperaldosteronism, is a genetic disorder inherited in an autosomal dominant manner that is characterized by early, and frequently severe, high blood pressure associated with low plasma renin activity, metabolic alkalosis, low blood potassium, and normal to low levels of aldosterone.〔 Liddle syndrome involves abnormal kidney function, with excess reabsorption of sodium and loss of potassium from the renal tubule, and is treated with a combination of low sodium diet and potassium-sparing diuretic drugs (e.g., amiloride). It is extremely rare, with fewer than 30 pedigrees or isolated cases having been reported worldwide as of 2008.
==Signs and symptoms==
Children with Liddle syndrome are frequently asymptomatic. The first indication of the syndrome often is the incidental finding of hypertension during a routine physical exam. Because this syndrome is rare, it may only be considered by the treating physician after the child's hypertension does not respond to medications for lowering blood pressure.
Adults could present with nonspecific symptoms of low blood potassium, which can include weakness, fatigue, palpitations or muscular weakness (shortness of breath, constipation/abdominal distention or exercise intolerance). Additionally, long-standing hypertension could become symptomatic.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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