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European Heart Journal 1990 11(4):320-322;
Copyright © 1990 by the European Society of Cardiology.
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© 1990 The European Society of Cardiology

Vagal heart rate control after percutaneous transluminal coronary angioplasty

M. J. NIEMELÄ, K. E. J. AIRAKSINEN, M. J. IKÄHEIMO and J. T. TAKKUNEN

Oulu University Central Hospital Oulu, Finland

revised 17 July 1989; .

Address for reprints:K.E.K. Airaksinen, M.D., Cardiovascular Division, Department of Medicine, Oulu University Central Hospital, SF-90220 Oulu, Finland

Abstract

Impairment of vagal heart rate control is common in coronary artery disease. To evaluate whether percutaneous transluminal coronary angioplasty (PTCA) has any beneficial effect on this impairment we measured heart rate responses to deep breathing and to standing up, standard tests of cardiac parasympathetic activity, in 28 patients before and 4 weeks after successful PTC A. Before PTC A, 10 patients (36%) had an abnormal heart rate response to deep breathing and one patient (4%) an abnormal response to standing up. The heart rate responses did not change significantly from thepreoperative values after PTC A. Thus, the relief of critical coronary obstruction by PTC A seems to have no beneficial effect on vagal heart rate control

Key Words: Coronary artery disease • autonomic nervous function • sudden death • heart rate


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