Da li operacije na kucajućem srcu redukuju mortalitet i morbiditet nakon operacije zamene srčanih zalistaka

Abstract

Aim: The aim of this study was to determine the effect of beating heart technique on mortality and morbidity after redo valve operations. Material and Method: Fifty-two patients who had redo open-heart surgery between May 2005 and November 2006 in a Hospital included in this prospective study. All patients had a history of open-heart surgery with median sternotomy. Thirty-two patients who had redo open-heart surgery with beating heart technique were included in Group 1 and 20 patients who had redo open-heart surgery with conventional cardioplegic myocardial arrest technique were included in Group 2. Patients who had any cardiac surgery without median sternotomy were excluded. Results: Functional capacity according to New York Heart Association classification was significantly lower and number of patients with chronic obstructive lung disease was significantly higher in Group 1 (p = 0.011 and p = 0.003 respectively). There was no significant difference in other preoperative variables. Operation, cardiopulmonary bypass and aortic cross-clamping times were significantly higher in Group 2 (p = 0.001, p = 0.003, p = 0.04 respectively). Mechanical ventilation, inotropic agent support and hospitalization times were significantly higher in Group 2 (p < 0.05). Intensive care unit time was significantly longer in Group 1 (p < 0.05). Drainage volumes, blood product transfusion volumes, intra-aortic balloon pump support times were not significantly different between the groups. Conclusion: Beating heart technique in redo heart valve operations has better outcomes than the conventional technique.