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本文用冠状动脉成形术患者作为暂时性心肌缺血的人体模型,以评价“对应性”ST 段压低和 T 波改变的心电图特点及其意义。在20例患者(其中19例为单支血管病变)冠脉成形术前及术中连续记录12导联心电图。在14例左前降支阻塞的患者中有12例Ⅰ、aVL 和至少2个胸前导联呈缺血性改变(T 波高尖和/或 ST 段抬高)。而且至少有2个下壁导联呈“对应性”改变(ST 段压低和/或 T 波倒置)。1例患者在 V_4—V_6导联出现 ST 段压低但不伴有下壁导联的心电图改变。而另1例患者唯一的心电图改变是下壁导联的 ST 段压低伴有 T 波的部分倒置。在6例右冠脉阻塞患者中有4例至少2个下壁导联呈缺
In this paper, coronary angioplasty patients as temporary myocardial ischemia in the human model to assess the “corresponding” ST segment depression and T wave changes in ECG characteristics and its significance. The 12-lead electrocardiogram was recorded continuously before and during the coronary angioplasty in 20 patients (19 of them were unilateral vessel lesions). Of the 14 patients with obstruction of the left anterior descending branch, 12 had ischemic changes (T wave elevation and / or ST elevation) in at least two of the aVL and at least two thoracic leads. And at least 2 inferior leads showed “correspondence” changes (ST segment depression and / or T wave inversion). One patient had an ST-segment depression in the V4-V_6 lead but not an ECG change in the inferior leads. In the other patient, the only ECG change was a partial inversion of the ST segment depression associated with T wave in the inferior leads. Of the 6 patients with right coronary artery occlusion, 4 had at least 2 inferior leads presenting a defect