The factors contributing to the development of polyneuropathy in the postoperative period of cardiac surgery

Neurological complications after cardiac surgeries are the most threatening complications. According to Shaw et al., 61% of patients after cardiac surgery were discovered with neurological complications, of which on the part of the peripheral nervous system - 12%. One of the most frequent complications of the peripheral nervous system that occurs after surgical interventions on the heart,is a polyneuropathy. The following cardiac surgeries were performed to all the patients: coronary artery bypass surgery in 51,7% of cases, reconstructive surgery on heart valves in 48,3% of cases. Sixty patients (36 - male, 24 - female) undergone cardiopulmonary bypass surgery were examined. The cohort was divided into two groups. Twenty patients (9 - male, 11 - female) who debuted polyneuropathy in early postoperative period after the heart surgery were included in the 1st (main) group. The patients of the 2nd control group (n=40) had also been undergone cardio-surgical interventions, but had no signs of polyneuropathy in early postoperative period. Multiple organ failure was diagnosed in 19 patients of the main group and 1 patient of the control group, sepsis - 20 patients and 1 patient respectively, pneumonia - 17 in the main group and 4 of the control, 5 patients of the main group and 2 of the control one had myocardial infraction, pleuritis was in 7 and 5 patients respectively. Patients of the main group were treated in intensive care unit significantly more often 19,4 bed-day, the control group - 1,5 bed-day (p