Methods:The clinical datas of 29 patients with chest pain and abnormal treadmill exercise test but normal coronary angiography were analyzed retrospectively.

• 方法：用回顾性病历分析方法，选择29例平板运动试验阳性或可疑阳性、冠状动脉造影结果正常的胸痛待诊病人，对其临床症状及辅助检查结果进行分析。