Saito S, Watanabe I, Hibiya K, Honye J, Moriuchi M, Ozawa Y, Kanmatsuse K
Second Department of Medicine, Nihon University School of Medicine, Tokyo, Japan.
Jpn Heart J. 1998 Mar;39(2):221-4. doi: 10.1536/ihj.39.221.
ST-segment alternans has been described in experimental coronary artery occlusion and in patients with variant angina. It is also seen during coronary angioplasty. This report describes a patient who on balloon inflation during coronary angioplasty demonstrated ST-segment alternans only on intracoronary electrocardiogram but did not on surface 12 lead electrocardiogram. Hemodynamic pulsus alternans of the aortic pressure tracing was not observed during electrical alternans.
ST段交替在实验性冠状动脉闭塞以及变异型心绞痛患者中已有描述。在冠状动脉血管成形术期间也可见到。本报告描述了一名患者,在冠状动脉血管成形术球囊扩张时,仅在冠状动脉内心电图上显示ST段交替,而在体表12导联心电图上未显示。在电交替期间未观察到主动脉压力描记图的血流动力学交替脉。