Liddle’s Syndrome
Wednesday, August 29th, 2007As in Bartter’s syndrome, hypokalemia, hyper-kaliuria, and hypochloremic metabolic alkalosis characterize this rare disorder. However, in sharp contrast to Bartter’s syndrome, aldosterone levels are normal, renal avidity for sodium is increased, and patients are hypertensive in Liddle’s syndrome. A primary increase in distal nephron sodium absorption, which can be blocked by the diuretic triamterene but not by the aldosterone antagonist spironolactone, appears to be the cause of the unusual clinical syndrome.