右心室缺血的心电图表现是右胸导联特别是V_4R的ST段抬高。作者曾报导合并右心室缺血的急性下壁心肌梗塞(下壁AMI)患者,与没有合并右心室缺血者相比,前者胸前导联ST段压低较后者少。本文报导下壁AMI患者,胸前导联ST段压低与下壁ST段抬高的比值在早期识别右心室缺血的价值。 68例下壁AMI患者。均于出现症状3小时内入院,以往无心肌梗塞病史,亦无陈旧心肌梗塞的心电图改变。男性58例,女性10例,平均年龄57±12岁。31例冠状动脉注射链激酶治疗,余37例静脉注射链激酶治疗。全部病例于症状出现4小时内,使用链激酶治疗之前,常规记录12导联心电图。选择AVF代表下壁导联,V_2代表左胸前导联。ST段的测量在j点之后80毫秒,ST段抬高为正值,压低为负值。31例 Right ventricular ischemic ECG showed right chest lead especially V_4R ST segment elevation. The authors report that patients with acute inferior myocardial infarction (AMI) with right ventricular ischemia had less ST-segment depression than those without concomitant right ventricular ischemia. This article reports the value of early recognition of right ventricular ischemia in patients with inferior AMI, the ratio of ST segment depression in the anterior chest lead to ST segment elevation in the inferior wall. 68 cases of inferior wall AMI patients. All patients were admitted within 3 hours after symptom onset. In the past, there was no history of myocardial infarction and no change of electrocardiogram of old myocardial infarction. 58 males and 10 females, with an average age of 57 ± 12 years. 31 cases of coronary artery injection streptokinase treatment, more than 37 cases of intravenous streptokinase treatment. In all cases, 12-lead electrocardiogram was recorded routinely prior to treatment with streptokinase within 4 hours of onset of symptoms. Select AVF for the lower leads, V_2 for the left chest lead. The ST segment is measured 80 ms after point j, ST segment elevation is positive and depression is negative. 31 cases