Rosing D R, Van Raden M J, Mincemoyer R M, Bonow R O, Bourassa M G, David P R, Ewels C J, Detre K M, Kent K M
Am J Cardiol. 1984 Jun 15;53(12):36C-41C. doi: 10.1016/0002-9149(84)90743-4.
Exercise testing after successful PTCA showed improved cardiac functional status on examination of electrocardiographic and symptomatic responses, myocardial perfusion and global and regional left ventricular function. Sixty-six patients were studied before and after persistently successful PTCA. Follow-up studies an average of 8 months after the successful procedure showed an incidence of abnormal testing of only 7% using both electrocardiographic and subjective symptomatic criteria during treadmill studies and no abnormal studies with thallium scintigraphy. Radionuclide cineangiography demonstrated similar left ventricular ejection fractions at rest before and after PTCA, but an improvement of 9 +/- 10% (p less than 0.001) in the exercise ejection fraction at follow-up. However, 52% of patients with paired data still had an abnormal radionuclide cineangiographic study after successful PTCA, raising the question of the presence of subclinical ischemia or a false-positive result.
成功进行经皮腔内冠状动脉成形术（PTCA）后的运动试验显示，通过心电图、症状反应、心肌灌注以及整体和局部左心室功能检查，心脏功能状态有所改善。对66例患者在持续成功进行PTCA前后进行了研究。在成功手术后平均8个月的随访研究中，使用心电图和主观症状标准进行跑步机研究时，异常检查的发生率仅为7%，而铊闪烁扫描未发现异常研究。放射性核素心血管造影显示PTCA前后静息时左心室射血分数相似，但随访时运动射血分数提高了9±10%（p＜0.001）。然而，52%有配对数据的患者在成功进行PTCA后放射性核素心血管造影研究仍异常，这就提出了是否存在亚临床缺血或假阳性结果的问题。
