스트레스성 심근증 환자에서의 Torsades de Pointes 증례 1 |
김형용ㆍ남기병ㆍ이상진ㆍ이현기ㆍ홍윤기ㆍ최기준ㆍ김유호 |
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A Case of Stress Cardiomyopathy Complicated by Torsades de Pointes in a Patient with Acute Colitis: A Case Report |
Hyoungyoung Kim, Gi Byoung Nam, Sang Jin Lee, Hyun Kee Lee, Yoonki Hong, Kee Joon Choi, You Ho Kim |
Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea. youho@amc.seoul.k |
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ABSTRACT |
A 67-year old woman, hospitalized for the management of infectious colitis, developed acute congestive heart failure. Two-dimensional echocardiography revealed left ventricular apical akinesia (ballooning) and basal hyperkinesis, which was compatible with stress cardiomyopathy. A marked QT prolongation and T wave inversion followed by nonsustained polymorphic ventricular tachycardia was noted in the electrocardiogram. Intravenous administration of magnesium completely suppressed the ventricular tachycardia. After recovery from the colitis, the follow-up ECG and echocardiogram were normalized. There was no evidence of ischemic heart disease in the coronary angiography or perfusion scan. Takotsubo cardiomyopathy is one of the most important causes of acquired QT prolongation in ICU (intensive care unit) patients.. A careful monitoring of the QT interval in these patients is warranted particularly when drugs causing QT prolongation are used. |
Key Words:
Long QT syndrome; Takotsubo cardiomyopathy; Torsades de pointes |
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