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Myocardial rupture is a laceration or tearing of the wall of the ventricles or atria of the heart, of the interatrial or interventricular septum, or of the papillary muscles. It is most commonly seen as a serious sequela of an acute myocardial infarction (heart attack). It can also be caused by trauma. ==Etiology== The most common cause of myocardial rupture is a recent myocardial infarction, with the rupture typically occurring three to five days after infarction.〔Figueras J, Alcalde O, Barrabes JA, Serra V, Alguersuari J, Cortadellas J, et al. Changes in Hospital Mortality Rates in 425 Patients with Acute ST-Elevation Myocardial Infarction and Cardiac Rupure Over a 30-Year Period. Circulation. 2008;118:2783–9. 〕 Other causes of rupture include cardiac trauma, endocarditis (infection of the heart), cardiac tumors, infiltrative diseases of the heart,〔 and aortic dissection. Risk factors for rupture after an acute myocardial infarction include female gender,〔〔 advanced age of the individual,〔〔 first ischemic event, and a low body mass index.〔 Other presenting signs associated with myocardial rupture include a pericardial friction rub, sluggish flow in the coronary artery after it is opened i.e. revascularized with an angioplasty, the left anterior descending artery being often the cause of the acute MI,〔〔 and delay of revascularization greater than 2 hours.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Myocardial rupture」の詳細全文を読む スポンサード リンク
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