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  • Title: Exercise, electrocardiographic and functional responses after percutaneous transluminal coronary angioplasty.
    Author: Rosing DR, Van Raden MJ, Mincemoyer RM, Bonow RO, Bourassa MG, David PR, Ewels CJ, Detre KM, Kent KM.
    Journal: Am J Cardiol; 1984 Jun 15; 53(12):36C-41C. PubMed ID: 6233885.
    Abstract:
    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.
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