Electrical impedancemetry - a new method for evaluating myocardial protection in operations with heart extracorporeal circulation

Objective: to determine the information content of electrical impedancemetry as a method of assessing myocardial protection during cardioplegic different versions. The study included 54 patients operated on in the emergency department of valvular defects surgery at Bakulev's Medical Center. Depending on the method of myocardial protection patients were divided into 3 groups: Group 1 - patients whom Buckberg cardioplegia was used (n = 31), group 2 - patients underwent cardioplegia solution with Custodiol (n = 9), group 3 - patients who have a peri- operative myocardial protection used hyperkalium solution (n = 14). All patients were studied bioelectrical impedance of the myocardium. The results showed that the electrical impedancemetry can well assess the state of the myocardium during surgery.