alexa Pseudo Bartter Syndrome from Surreptitious Purging Behaviour in Anorexia Nervosa

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Pseudo Bartter Syndrome from Surreptitious Purging Behaviour in Anorexia Nervosa

Pseudo Bartter syndrome is a rare disorder characterized by metabolic alkalosis, hypokalaemia, hyperaldosteronism, hyperreninism, normal blood pressure and hyperplasia of the juxtaglomerular apparatus. The most dangerous complication of Pseudo Bartter syndrome is hypokalemia. Hypokalemia caused by vomiting, diarrhea, prolonged fasting, abuse of potassium-depleting drugs, may be present in patients with binge /purging form of anorexia or bulimia nervosa. We report a case of a 19-year-old girl with anorexia nervosa (BMI 16.15 kg/m2) and severe prolonged hypokalemia (1.9 mEq/l), metabolic alkalosis and severe protracted secondary hyperaldosteronism (i.e. Pseudo Bartter’s syndrome) from surreptitious purging behaviour (vomit and laxative abuse). An intensive multidisciplinary day-hospital treatment including long-term potassium supplementation, a potassiumsparing diuretic was necessary to resolve the case and to allow the young girl to admit her previous purging behaviour and after three months to get at a normal kalemia without any potassium supplementation and BMI at a normal value (20 kg/m2). Given the dangers to the heart electrical and mechanical functions set by severe potassium deficiency, it is mandatory to find out the true cause so that a proper treatment can be started.

Citation: Gentile MG (2012) Pseudo Bartter Syndrome from Surreptitious Purging Behaviour in Anorexia Nervosa. J Nutr Disorders Ther 2:107. 

 
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