beer potomania

beer potomania

A condition characterised by hyponatraemia in response to excessive beer intake in a background of poor nutrition.

Pathophysiology
The low (30 mg/L) sodium content of beer means that it is little different from free water. Because the kidneys can dilute urine to a maximum of 50 mosm/L, 4 litres of beer (essentially 4 litres of water) stimulates the secretion of anti-diuretic hormone, resulting in hyponatraemia.
References in periodicals archive ?
His severe hyponatremia and history of excessive consumption of beer, a poor source of sodium and protein, coupled with his poor intake of food was consistent with the diagnosis of beer potomania.
Given this patient's clinical history of excessive beer intake, poor food intake, laboratory findings of severe hyponatremia and low serum and urine osmolalities, and low urinary sodium concentrations, the diagnosis of beer potomania was made.
ADH concentrations are usually suppressed in patients with beer potomania, because they have an excess of water without the solute needed for diuresis (7, 8).
In 2007, a review of 22 published cases of beer potomania revealed a shared history of excessive beer intake, often long-term, with frequent recent episodes of binge drinking and poor dietary intake (8).
This volume is roughly equivalent to 14 cans of beer (12-oz cans), a level of beer consumption common among patients with beer potomania.
Severe hyponatremia is caused by an excess of water relative to sodium stores and may be caused by diuretics, vomiting, diarrhea, congestive heart failure, cirrhosis, inappropriate secretion of ADH, and, rarely, beer potomania and excess intake of water alone.
Beer potomania with biochemical findings of low serum sodium, low serum and urine osmolalities, and low urine sodium values can cause severe hyponatremia.
Thus, analogous to beer potomania, she developed hyponatremia due to the combination of excess water intake in the face of restricted solute intake.
This case describes a more unusual cause of hyponatremia, so-called beer potomania (2), in which free-water (out of proportion to osmoles) ingestion is the culprit.
Fatal complications of hyponatremia due to beer potomania or after binge drinking have been reported.