Cardiac work up in primary renal hypokalaemia-hypomagnesaemia (Gitelman syndrome)

Abstract
Background. Potassium and magnesium depletion prolongs the duration of the action potential of the cardiomyocyte, which predisposes to ventricular arrhythmias. In addition, potassium or magnesium depletion might impair cardiac performance and facilitate coronary artery thrombosis.