Kataoka H, Kanzaki K, Mikuriya Y
Second Department of Internal Medicine, Medical College of Oita, Japan.
J Electrocardiol. 1988 Apr;21(2):115-20. doi: 10.1016/s0022-0736(88)80007-4.
This report describes a case of right ventricular infarction in which massive ST-segment elevation in the precordial and inferior leads was observed. The maximum magnitude of the ST-segment elevation in the precordial leads was 21 mm in lead V2 and that in the inferior leads was 10 mm in lead II. Angiography revealed a reduction of 90% in the diameter of the right coronary artery in its proximal portion and a normal left coronary system. Recent reports have shown that precordial ST-segment elevation may reflect right ventricular infarction. However, no previously reported instance except our case has shown massive ST-segment elevation in both the precordial and inferior leads. In right ventricular infarction, the current of injury is usually simultaneously present in the right ventricular free wall and left ventricular inferior wall, electrically opposed to each other. Thus, the diffuse and massive ST-segment elevation observed in this study seems to be a rare phenomenon.
本报告描述了一例右心室梗死病例，该病例中观察到心前区导联和下壁导联出现大量ST段抬高。心前区导联ST段抬高的最大幅度在V2导联为21mm，下壁导联在II导联为10mm。血管造影显示右冠状动脉近端直径减少90%，左冠状动脉系统正常。最近的报告表明，心前区ST段抬高可能反映右心室梗死。然而，除我们的病例外，此前没有报告显示心前区导联和下壁导联均出现大量ST段抬高。在右心室梗死中，损伤电流通常同时存在于右心室游离壁和左心室下壁，两者电活动方向相反。因此，本研究中观察到的弥漫性和大量ST段抬高似乎是一种罕见现象。
