Association of takotsubo cardiomyopathy and long QT syndrome

被引：42
作者：
Sasaki, Osamu
Nishioka, Toshihiko
Akima, Takashi
Tabata, Hirotsugu
Okamoto, Yasuhiro
Akanuma, Masahiko
Uehata, Akimi
Takase, Bonpei
Katsushika, Shuichi
Isojima, Kazushige
Ohtomi, Shingo
Yoshimoto, Nobuo
机构：
[1] Saitama Med Univ, Saitama Med Ctr, Div Cardiol, Kawagoe, Saitama 3508550, Japan
[2] Natl Def Med Coll, Dept Internal Med 1, Tokorozawa, Saitama 359, Japan
[3] Self Def Forces Cent Hosp, Dept Internal Med 1, Tokyo, Japan
[4] Mishuku Hosp, Div Cardiol, Tokyo, Japan
来源：
CIRCULATION JOURNAL | 2006年 / 70卷 / 09期
关键词：
long QT syndrome; takotsubo cardiomyopathy; torsades de pointes;
D O I：
10.1253/circj.70.1220
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
A young woman presented with takotsubo cardiomyopathy after a syncopal attack caused by torsades de pointes. Two-dimensional echocardiography on admission showed left ventricular apical akinesis (ballooning) and basal hyperkinesis, compatible with takotsubo cardiomyopathy. This gradually normalized in 2 months. ECG on admission showed remarkable QT prolongation, U waves, and negative T waves, which also gradually normalized. Coronary angiography revealed no organic stenosis; however, acetylcholine provocation test caused the QT interval to again become prolonged. During treadmill exercise stress testing, the QT interval shortened as heart rate increased. Therefore, without genetic analysis, this patient was considered to have sporadic long QT syndrome in which takotsubo cardiomyopathy developed after the syncopal attack caused by torsades de pointes.
引用
收藏
页码：1220 / 1222
页数：3
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