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急性心肌梗塞(AMI)常并发左室乳头肌坏死,但罕有乳头肌断裂.国立心、肺、血液研究院14年来尸检证实22(男15、女7)例AMI并发左室乳头肌断裂的病例,平均年龄64(45～80)岁,大多为冠心病首次发作.仅6例(6/22)此次发病前曾有心绞痛.4例尸检见既往心肌梗塞遗留的左室疤痕.18例(18/22)发病后出现休克和/或充血性心力衰竭.尸检发现17例(17/22)心脏肥厚,但无一例心腔扩大;且仅8例(8/22)有高血压史.有记录的15例心外膜下脂肪均过多:5例为++++(心脏可漂在水面上),9例为+++.后内乳头肌断裂16例,前外乳
Acute myocardial infarction (AMI) often complicated by left ventricular papillary muscle necrosis, but rare papillary muscle rupture.National Heart, Lung, Blood Institute autopsy confirmed 14 years 22 (15 men and 7 women) cases of AMI complicated by left ventricular papillary muscle rupture cases , With an average age of 64 (45-80) years old, mostly for the first episode of coronary heart disease.Only 6 patients (6/22) had angina before the onset.Among the 4 autopsy cases, 18/22) developed shock and / or congestive heart failure after the onset of disease. Seventeen (17/22) cardiac hypertrophy were found at necropsy but none of the patients had an enlargement of the heart chamber; only eight (8/22) had a history of hypertension. Fifteen cases of subepicardial fat were recorded too much: 5 cases of ++++ (heart can float on the water), 9 cases of +++. After the internal papillary muscle rupture in 16 cases,