The possibilities of forecast of atrioventricular conduction abnormalities during the correction of congenital malformations of heart

The forecasting signs of danger of the appearance of iatrogenic atrioventricular blockades on the base of the analysing of preoperative ECG 373 infants, operated apropos of the congenital malformations of heart, are set. Restricted blocking of the right bundle and disorder of conduction along right ventricle presence upon ECG before the surgery raises the danger of atrioventricular pathways damage. During the complete postoperative atrioventricular blocking the distal localization of substitutional rhythm driver predictive for less favorable for the sinus rhythm repair, than the damage of the proximal section of atrioventricular junction.