前外侧乳头肌完全断裂并因对角支闭塞并发急性心肌梗死。
Complete rupture of the anterolateral papillary muscle complicated with acute myocardial infarction due to diagonal branch occlusion.
作者信息
Okamoto Yuki, Minakata Kenji, Yunoki Tomoyuki, Katsu Masatake
机构信息
Division of Cardiovascular Surgery, Tominaga Hospital, Osaka, Japan.
出版信息
J Cardiol Cases. 2012 Jan 12;5(2):e76-e79. doi: 10.1016/j.jccase.2011.11.005. eCollection 2012 Apr.
It is well known that post-infarction papillary muscle rupture of the anterolateral papillary muscle is less frequent than that of the posteromedial papillary muscle. This is thought to be due to a difference in blood supply (single vs dual) of the papillary muscles. Recently, we had two cases in which occlusion of the diagonal branch of the left anterior descending artery was found to be the culprit lesion of acute myocardial infarction leading to complete rupture of the anterolateral papillary muscle. Herein, we report on these two rare successful surgical cases with some review of the literature.
众所周知，前外侧乳头肌梗死后乳头肌破裂的发生率低于后内侧乳头肌。这被认为是由于乳头肌血液供应（单支与双支）的差异所致。最近，我们遇到两例病例，其中发现左前降支对角支闭塞是导致前外侧乳头肌完全破裂的急性心肌梗死的罪魁祸首病变。在此，我们报告这两例罕见的成功手术病例并对文献进行一些综述。
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