Pathogenesis of the Takotsubo Syndrome: A Unifying Hypothesis

被引:31
作者
Lindsay, Joseph [1 ]
Paixao, Andrea [1 ]
Chao, Tania [1 ]
Pichard, Augusto D. [1 ]
机构
[1] Washington Hosp Ctr, Div Cardiol, Washington, DC 20010 USA
关键词
ACUTE MYOCARDIAL-INFARCTION; TAKO-TSUBO CARDIOMYOPATHY; LEFT-VENTRICULAR DYSFUNCTION; CORONARY-ARTERY STENOSIS; ST-SEGMENT ELEVATION; BALLOONING SYNDROME; CLINICAL-FEATURES; PRINZMETAL ANGINA; STRESS; DISEASE;
D O I
10.1016/j.amjcard.2010.06.068
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The takotsubo syndrome (TS) is defined by a constellation of clinical observations in a subgroup of patients with acute coronary syndromes Separating patients with TS from the general population with acute ischemic events are 2 important findings obstructive coronary artery disease is missing, but the sine qua non is a distinctive pattern of abnormal left ventricular contraction As with many newly recognized clinical syndromes, TS seems not to conform to accepted pathogenetic mechanisms Thus, physicians are challenged to identify previously unrecognized mechanisms of disease Two schools of thought have emerged in this regard Most consider its pathogenesis to be a stress-induced neurohormonal phenomenon, while a smaller but substantial group believe that the transient occlusion of an epicardial coronary artery is responsible and that the syndrome is simply an unusual manifestation of coronary atherosclerosis This editorial outlines briefly the evidence for each of these positions and presents a novel construct that may encompass the 2 views Central to this unifying hypothesis is the belief that a neurohormonal surge triggers the hallmark left ventricular contraction abnormality, the sine qua non of the TS In conclusion, the authors postulate that this pattern will result regardless of the state of the epicardial coronary arteries and can be observed in patients with angiographically normal coronary arteries, as well as those with obstructed or occluded arteries (C) 2010 Elsevier Inc All rights reserved (Am J Cardiol 2010,106 1360-1363)
引用
收藏
页码:1360 / 1363
页数:4
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