Coronary heart disease clinic in patients with pacemaker, and selection of optimal electrostimulation regimen
Abstract
One hundred fifty-four patients with artificial pacemaker (АРМ) and diagnosed CHD with effort angina, functional class II-IV, were included into the trial. The influence of electrocardiostimulation (ECS) on CHD clinic was surveyed. The symptoms had improved in 72 (46, 8 %) patients (Group 1), with decreased frequency of anginal episodes, quantity and doses of antianginal drugs taken, and increased exercise capacity. The opposite was observed in another 30 (19. 5 %) patients (Group 2), with more frequent anginal episodes, changed pain type, localisation and duration, and modified reaction to nitroglycerin. It was explained by electrostimulation associated with 1. 5-2-fold increase in heart rate, raising myocardial О2 demand, as well as by psychocardial syndrome. In remained 52 patients (33. 8 %) (Group 3), the character of anginal episodes did not react to ECS. Coronary reserve optimisation requires the flexible programming of electroimpulse frequency, according to angina and/or chronic heart failure functional class, and to ECS regimen. In particular, for patients with low coronary reserve, the frequency of 55-56 impulses per min is optimal, and individuals with congestive heart failure need 75-85 impulses per min.
About the Authors
B. G. Iskenderov
Пензенский институт усовершенствования врачей
Russian Federation
Russian Federation
V. A. Lusov
Российский государственный медицинский университет
Russian Federation
Russian Federation
T. N. Vakina
Пензенский институт усовершенствования врачей
Russian Federation
Russian Federation
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Review
For citations:
Iskenderov B.G., Lusov V.A., Vakina T.N. Coronary heart disease clinic in patients with pacemaker, and selection of optimal electrostimulation regimen. Russian Journal of Cardiology. 2004;(1):8-12. (In Russ.)
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