Subendocardial Ischemia Because of Coronary Artery Spasm Causes Transient Severe Mitral Regurgitation.

Subendocardial Ischemia Because of Coronary Artery Spasm Causes Transient Severe Mitral Regurgitation.
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冠状动脉痉挛引起的心内膜下缺血导致短暂的严重二尖瓣反流。

DOI:
10.1161/circheartfailure.118.005496
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发表时间:
2018
期刊:
Circ Heart Fail.
影响因子:
--
通讯作者:
Shirai T.
Shirai T.
中科院分区:
--
文献类型:
--
作者:
Kaneko M;Ueda K;Nishimae I;Nitta S;Suzuki M;Kasao M;Shirai T.

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讨论短暂性重度二尖瓣返流(TSMR),也称为闭塞型二尖瓣返流,最近被认为是急性肺水肿的一种罕见原因,好发于绝经后妇女。Avierious等人于2008年首次描述了该疾病,迄今为止已报告了少数病例。2-4这种特殊类型的MR的特征是在没有LV收缩功能障碍或冠状动脉狭窄的情况下出现短暂的大量功能性MR。尽管TSMR的发病机制仍有待阐明,但在某些情况下,冠状动脉血管痉挛与冠状动脉痉挛和大量MR有关,其中冠状动脉内输注激发药物引起冠状动脉痉挛和大量MR,硝酸盐迅速改善MR。1或者,在某些情况下,激发药物不会引起心外膜血管痉挛或MR。4
DiscussionTransient severe mitral regurgitation (TSMR), also known as eclipsed MR, has been recently recognized as a rare cause of acute pulmonary edema with a predilection for occurrence in postmenopausal women. The condition was first described by Avierious et al 1 in 2008, and a few cases have been reported to date. 2–4 This particular type of MR is characterized by transient massive functional MR in the absence of LV systolic dysfunction or coronary artery stenosis. Although the etiopathogenesis of TSMR remains to be elucidated, coronary vasospasm has been implicated in some cases wherein coronary spasm and massive MR were induced by intracoronary infusion of provocation drugs, and nitrates rapidly improved the MR. 1 Alternatively, in some cases, provocation drugs did not induce epicardial vasospasm or MR. 4
隐性二尖瓣反流:一种新形式的功能性二尖瓣反流,用于治疗射血分数正常的异常原因心力衰竭
DOI: 10.1159/000109403
发表时间: 2007
期刊: Cardiology
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DOI: 10.1161/circheartfailure.109.921957
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