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作者对35例作诊断性冠状动脉造影病人进行了异丙基肾上腺素应激试验,以进一步评论其价值。方法是以每100毫升5％葡萄糖液含0.2毫克异丙基肾上腺素静脉滴入,注入速度每分钟1～2微克,至出现ST段压低,显著胸痛或心率至少达130次/分为止。ST段缺血型压低至少1.0毫米并持续至少0.08秒作为阳性标准。试验结果与活动平板试验和冠状动脉造影进行对照。此试验可正确辨认出71％病人有或无冠状动脉疾病,而活动平板试验为68％。此试验有8例(40％)假阴性和3例(20％)假阳性活动平板试验则分别为
The authors conducted an isoproterenol stress test on 35 patients with diagnostic coronary angiography to further comment on their value. Method is per 100 ml of 5% glucose solution containing 0.2 mg of isoproterenol intravenous infusion rate of 1 ~ 2 micrograms per minute until the ST segment depression, significant chest pain or heart rate at least up to 130 beats / min. ST-segment ischemia is depressed by at least 1.0 millimeter for at least 0.08 seconds as a positive standard. The test results were compared with the activity plate test and coronary angiography. This test correctly identified 71% of patients with or without coronary artery disease, compared with 68% for the activity plate test. There were 8 (40%) false negatives and 3 (20%) false positive activity plate tests in this trial