Carbonated drinks, thiamine deficiency and right ventricular failure.

A 69 year old male presented with clinical features of right ventricular failure. A dilated poorly contracting right ventricle was confirmed by echocardiography and radionuclide ventriculography, with subsequent improvement following thiamine replacement. Wet beriberi is a result of thiamine deficiency and is uncommon in Europe and North America except in association with chronic alcohol abuse. We report a patient with beriberi presenting unusually with severe right-sided cardiac failure, with documented impairment of right ventricular function, which improved with thiamine replacement. His dietary intake of thiamine was low because of excess intake of carbonated drinks and carbohydrates.