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KMID : 0364019920250020188
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Korean Journal of Thoracic and Cardiovascular Surgery
1992 Volume.25 No. 2 p.188 ~ p.193
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Torsade de Pointes Associated with Hypomagnesemia after Open Heart Surgery -A Report of 2 Cases-
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노환규
장병철/박영환/강면식/홍승록/김성순
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Abstract
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Life-threatening cardiac arrhythmia is a frequent complication of open heart surgery. There are many causes of postoperative cardiac arrhythmias. Electrolyte imbalance such as hypokalemia and acidemia are major causes of ventricular arrhythmias.
Infrequently, however, antiarrhythmic agents and/or hypomagnesemia induce(s) a ventricular arrhythmia such as 'torsade de pointes' by increasing the repolarization time of myocardium.
Recently, we have experienced two cases of 'torsade de pointes' associated with hypomagnesemia after replacement of mitral valve and one of whom after use of procainamide. Intravenous infusion of magnesium immediately and successfully abolished
the
torsade depointes in both cases.
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KEYWORD
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