以上介绍了易于心绞痛相混淆的一些心外病变,下面介绍非冠心病性心源性胸痛。一、二尖瓣脱垂综合征胸痛为本病常见的症状之一,可能是冗长的二尖瓣脱垂到心房牵扯了腱索、乳头肌等所致。本病的特点为:①女性多见,多无冠心病易患因素;②胸痛发作多与劳力无关,部位常不固定,持续时间不等(最长可达数小时),平卧位可减轻,硝酸甘 The above describes some of the extracorporeal lesions easily confused with angina, the following non-coronary heart-shaped chest pain. First, the mitral valve prolapse syndrome Chest pain is one of the common symptoms of the disease, may be lengthy mitral valve prolapse to the atria involved in chordae, papillary muscle and so on. The characteristics of the disease are: ① more common in women, more coronary heart disease risk factors; ② chest pain and labor unrelated, often not fixed parts, ranging in duration (up to a few hours), supine position can be reduced , Nitrate