Gérard R, Luccioni R, Gatau-Pelanchon J, Duport G, Jullien G, Bouteau J M, Chabrillat Y, Duport M Y
Arch Mal Coeur Vaiss. 1979 Jul;72(7):715-20.
75 cases of mitral valve prolapse (MVP) for which no cause was found underwent electromyography (EMG). In 64 cases (85.3%) EMG showed changes suggestive of spasmophilia. The symptoms observed were those already described in this condition. The specific clinical signs of spasmophilia were often elicited with a positive Chvostek sign in 20 out of 30 cases (73.3%). Radiological, echocardiographical and haemodynamic studies underlined the hyperkinetic state of the left ventricle. Biochemical investigations showed a high incidence of low erythrocytic magnesium levels. Chest pain suggestive of angina pectoris, mitral valve prolapse and spasmophilia are frequently associated. The role of the low erythrocyte magnesium on left ventricular hyperkinesis and the production of MVP is discussed.
75例未发现病因的二尖瓣脱垂（MVP）患者接受了肌电图（EMG）检查。64例（85.3%）肌电图显示有提示痉挛素质的改变。观察到的症状为本病已描述过的症状。30例中有20例（73.3%）痉挛素质的特异性临床体征常伴有Chvostek征阳性。放射学、超声心动图和血流动力学研究强调了左心室的运动亢进状态。生化检查显示红细胞镁水平低的发生率很高。提示心绞痛、二尖瓣脱垂和痉挛素质的胸痛常同时出现。讨论了红细胞镁水平低对左心室运动亢进和二尖瓣脱垂产生的作用。
