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问:一位48岁男人,具基础心电图表明有下壁心肌缺血。由于患者先前无心脏病史,而且还很活跃,每周打三次网球。患者作了踏车试验,运动进行9分钟无任何症状,但医生根据其心电图显示下壁及后壁出现缺血的改变,而令其停止试验。心脏导管插入显示
Q: A 48-year-old man with underlying electrocardiogram showed inferior myocardial ischemia. Tennis was played three times a week as the patient had no previous history of heart disease and was still active. The patient made a treadmill test. The exercise proceeded for 9 minutes without any symptoms, but the doctor stopped the test on the basis of his ECG showing ischemia in the inferior and posterior walls. Cardiac catheterization is shown