Previtali M, Fetiveau R, Lanzarini L, Cavalotti C
Department of Cardiology, IRCCS Policlinico San Matteo, University of Pavia, Italy.
Am J Cardiol. 1998 Dec 15;82(12):1528-30, A7. doi: 10.1016/s0002-9149(98)00699-7.
During dobutamine stress echocardiography, ST-segment elevation developed in 20 of 372 patients (5%) without previous myocardial infarction and was associated with a transient severe asynergy of the myocardial region corresponding to the site of ST elevation. In 17 of 19 patients, ST-segment elevation was associated with a critical stenosis of the ischemia-related coronary artery, whereas in 2 of 19 patients with no critical lesions of the ischemia-related artery, coronary vasospasm was the most likely mechanism of myocardial ischemia.
在多巴酚丁胺负荷超声心动图检查期间，372例既往无心肌梗死的患者中有20例（5%）出现ST段抬高，且与ST段抬高部位对应的心肌区域短暂严重运动失调相关。19例患者中有17例，ST段抬高与缺血相关冠状动脉的严重狭窄有关，而在19例缺血相关动脉无严重病变的患者中，有2例冠状动脉痉挛是心肌缺血最可能的机制。
