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急性心肌梗塞后应激性ST段抬高(△ST)的意义仍有争议,一些研究显示其与左室运动不协调有关,另一些则认为与缺血有关。目前尚无将同组病人的应激性缺血和不协调与△ST加以比较的报道。为此,对88例急性心肌梗塞16±4天后的病人进行了研究。在间歇1～2天的不同时间,分别对其进行多巴酚丁胺激发实验。在血压和心电图监测下,多巴酚丁胺输注量达40μg/kg/min。当多巴酚丁胺最大剂量及3～4小时后行~(201)TL单光子发射计算机断层照相,在静息状态和多巴酚丁胺最大剂量时进行平衡法放射性核素心室显像,计算全心脏和局部(运动减少区域)射血分数,ST
The significance of stress ST-segment elevation (Δ ST) after acute myocardial infarction remains controversial, with some studies suggesting that it is associated with uncoordinated left ventricular motility, while others are associated with ischemia. There are currently no reports of stress ischemia and incompatibility with Δ ST in the same group of patients. To this end, 88 patients with acute myocardial infarction after 16 ± 4 days were studied. At different time intervals of 1 to 2 days, dobutamine stimulation experiments were performed on them respectively. Dobutamine infusion was 40 μg / kg / min with blood pressure and ECG monitoring. When dobutamine maximum dose and 3 ~ 4 hours after the line ~ (201) TL single photon emission computed tomography at resting and dobutamine maximum dose balanced radionuclide ventricular imaging, Calculate the whole heart and local (motor area) ejection fraction, ST