García Rubí D E, Nava López G, López Cuéllar M, Kadlubik D S
Arch Inst Cardiol Mex. 1981 Sep-Oct;51(5):431-41.
Twelve patients 8 females and 4 males, whose ages varied from 33 to 60 years (median 50.6 years), were seen at the Hospital for Cardiology and Neurology of the Mexican Institute for Social Security. All were diagnosed as having angor pectoris, through the clinical history and physical exam. Three patients had stable angor and in nine it was of an unstable type. The resting ECG showed signs of subepicardial ischemia in five cases. In eight the stress ECG according to the Bruce technic showed depression of the ST segment over 1 mm. In one patient atrial stimulation was performed with a pacemaker and ischemic changes of the ST segment were normal in all cases; in two however, coronary spasm that reversed with nitroglycerin appeared. The left ventriculogram was normal in all but one that revealed diaphragmatic hypokinesia associated with right coronary spasm. All patients were followed from two to fifty six months (median 19.4), and only in one case the angor pectoris remained unchanged. In all others it decreased or disappeared. During this time there were no deaths, myocardial infarctions or severe arrhythmias.
12名患者（8名女性，4名男性）在墨西哥社会保障机构的心脏病学和神经病学医院接受诊治，年龄在33岁至60岁之间（中位数为50.6岁）。通过临床病史和体格检查，所有患者均被诊断为患有心绞痛。3例患者为稳定型心绞痛，9例为不稳定型。静息心电图显示5例有心外膜下缺血迹象。8例患者根据布鲁斯技术进行的运动心电图显示ST段压低超过1毫米。1例患者使用起搏器进行心房刺激，所有病例中ST段的缺血性改变均正常；然而，在2例患者中出现了用硝酸甘油可逆转的冠状动脉痉挛。除1例显示与右冠状动脉痉挛相关的膈运动减退外，其余患者的左心室造影均正常。所有患者随访2至56个月（中位数为19.4个月），只有1例患者的心绞痛没有变化。在其他所有患者中，心绞痛减轻或消失。在此期间，无死亡、心肌梗死或严重心律失常发生。
