García Pascual J, Méndez M, Gomez-Pajuelo C
Int J Cardiol. 1986 Nov;13(2):243-6. doi: 10.1016/0167-5273(86)90148-8.
We describe a middle-aged man who developed angina and transient left bundle branch block during an exercise test. Coronary arteriography failed to shown significant atherosclerotic lesions and therapy with calcium antagonist nifedipine resolved both the symptoms and the electrocardiographic abnormalities. Previous reports of transient conduction defects have been related to severe obstructive lesions of the coronary arteries. The minimal lesions found in our patient suggest that coronary spasm may have been the causative mechanism.
我们描述了一名中年男性，他在运动试验期间出现心绞痛和短暂性左束支传导阻滞。冠状动脉造影未显示明显的动脉粥样硬化病变，使用钙拮抗剂硝苯地平治疗后症状和心电图异常均得到缓解。既往关于短暂性传导缺陷的报道均与严重的冠状动脉阻塞性病变有关。在我们的患者中发现的轻微病变提示冠状动脉痉挛可能是致病机制。
