COMPARATIVE STUDY
JOURNAL ARTICLE

On-pump beating-heart coronary artery bypass provides efficacious short- and long-term outcomes in hemodialysis patients

Yi-Ting Tsai, Feng-Yen Lin, Ching-Huang Lai, Yi-Chang Lin, Chih-Yuan Lin, Chien-Sung Tsai
Nephrology, Dialysis, Transplantation 2012, 27 (5): 2059-65
21956251

BACKGROUND: On-pump beating-heart coronary artery bypass grafting surgery (CABG) is beneficial due to the elimination of cardioplegic arrest. However, there are few reports regarding its efficacy in chronic hemodialysis patients. This study investigated the potential benefits of on-pump beating-heart CABG in chronic hemodialysis patients.

METHODS: From January 2002 to January 2010, 186 patients with chronic hemodialysis underwent CABG in our institution. In total, 82 patients underwent conventional CABG with cardioplegic arrest, 56 underwent off-pump CABG and 48 underwent on-pump beating-heart CABG. The early results and long-term outcomes were compared among these three groups.

RESULTS: On-pump beating-heart CABG significantly reduced the duration of cardiopulmonary bypass (CPB) compared with conventional CABG. The post-operative pericardial drainage amount (P < 0.01), length of hospital stay (P < 0.001) and length of post-operative intensive care unit stay (P < 0.001) were significantly lower in the on-pump beating-heart and off-pump CABG groups than in the conventional CABG group. No significant difference was found regarding 30-day mortality and morbidity rates including stroke, pneumonia, arrhythmia, intestinal complication and low cardiac output syndrome. There were no statistical differences in the freedom from cardiac events (P = 0.323), but on-pump beating-heart CABG provided better long-term survival than conventional CABG (P = 0.009).

CONCLUSIONS: On-pump beating-heart CABG is a safe procedure that provides optimal operative exposure in chronic hemodialysis patients. The use of CPB and the elimination of cardioplegic arrest may be beneficial for the short- and long-term survival of chronic hemodialysis patients.

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