[Character and circadian patterns of disturbances of the heart's rhythm in patients with postinfarction cardiosclerosis and pre- and early postinfarction angina (with data from Holter electrocardiogram monitoring)].
An evaluation was done of the character and circadian patterns of cardiac rhythm in 157 patients with ischemic heart disease, postinfarction cardiosclerosis, who ranged from 34 to 73 years old, with a history of preinfarction and early postinfarction stenocardia. It has been found out that in patients with postinfarction cardiosclerosis there prevail supraventricular and ventricular extrasistole in the structure of the heart's rhythm disturbances. Other rhythm disturbances occur very seldom. Supraventricular and ventricular tachycardia are more commonly seen in patients with a history of early postinfarction angina. The above patients demonstrate an increase in both the number of extrasystoles and in their gradation suggesting to us an electrical instability of the myocardium. Ventricular extrasystole was seen significantly less frequently in those patients presenting with preinfarction stenocardia, which fact might be related to a protective action of the ischemic preconditioning phenomenon.
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D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000150:complications* / Q000503:physiopathology; D001145:Arrhythmias, Cardiac / Q000150:complications* / Q000503:physiopathology; D021081:Chronobiology Disorders / Q000209:etiology*; D015716:Electrocardiography, Ambulatory / Q000295:instrumentation / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications* / Q000503:physiopathology
Kharakter ta tsyrkadnist' porushen' sertsevoho ritmu u khvorikh z postinfarktnym kardiosklerozom I peredinfarktnoiu ta rann'oiu pisliainfarktnoiu stenokardiieiu (a danymy kholterivs'khoho monitorynhu elektrkardiohramy).