Clinical hypomagnesemia, coronary spasm and cardiac arrhythmia.

The case report demonstrates another case of hypomagnesemia with electrocardiographic evidence of acute myocardial ischemia due to coronary spasm. The patient was successfully treated with intravenous, followed by oral, magnesium sulfate. Magnesium therapy may be justified especially in patients with prolonged QT intervals, cardiac arrhythmias and hypokalemia with hypomagnesemia.