METHOD FOR ESTIMATING CORONARY AND MYOCARDIAL RESERVES OF THE HEART IN TACHYCARDIA CASES UNDER TWO-CHAMBER ELECTRIC CARDIAC STIMULATION Russian patent published in 1998 - IPC

FIELD: medicine. SUBSTANCE: method involves modeling tachycardia in patient with two-chamber system of electric cardiac stimulation. Coronary and myocardial heart reserves are estimated at the same time. Electric pulses sent by exterior stimulation device are produced at frequency of 100-800 pulses per 1 min and amplitude 5-10 times exceeding the magnitude of intracavitary potentials of spontaneous auricle excitation. Stenocardia, ischemic disorders being detected on patient cardiogram, lowered coronary reserve is determined to be the case. Lowered contraction index being determined, lowered myocardial heart reserve is considered to be the case. EFFECT: enhanced accuracy in determining cardiac reserve with no tachycardia paroxysm taking place. 4 dwg