Feld H, Guadanino V, Hollander G, Greengart A, Lichstein E, Shani J
Cardiac Catheterization Laboratory, Maimonides Medical Center, Brooklyn, NY.
Chest. 1991 May;99(5):1295-6. doi: 10.1378/chest.99.5.1295.
Sustained ventricular tachycardia induced by exercise is uncommon. This is a report of a patient who has a positive exercise test at a high level of exercise. The electrocardiogram has classic ischemic ST depressions. Following the appearance of these ST depressions, the patient developed ventricular tachycardia at a rapid rate. Workup that included an echocardiogram and cardiac catheterization revealed myocardial bridging of the left anterior descending artery as the only structural abnormality. Electrophysiologic studies revealed the patient to have ventricular tachycardia only with isoproterenol (Isuprel) infusion.
运动诱发的持续性室性心动过速并不常见。本文报告了一名患者，其在高强度运动时运动试验呈阳性。心电图有典型的缺血性ST段压低。这些ST段压低出现后，患者迅速发生了室性心动过速。包括超声心动图和心导管检查在内的检查显示，左前降支心肌桥是唯一的结构异常。电生理研究显示，仅在静脉输注异丙肾上腺素（喘息定）时患者会出现室性心动过速。
