Can off-pump coronary artery bypass graft surgery decrease the incidence of postoperative atrial fibrillation?

Wei Shiang Lin, Jun Ting Liou, Shih Ping Yang, Chien Sung Tsai, Min Huey Chung, Kai M. Chu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Background: Atrial fibrillation (AF) remains the most common cardiac arrhythmia encountered after coronary artery bypass grafting (CABG) and leads to a significant source of morbidity and mortality after the surgery. Due to its involving less manipulation of the atria, off-pump CABG was thought to have a lower incidence of postoperative AF compared with on-pump CABG. Methods: Two hundred and twenty-five patients (154 male) underwent CABG. Preoperative permanent AF patients were excluded (n = 12). Group 1 consisted of 78 patients (53 male, 68.6 ± 11.9 years old; 25 female, 70.7 ± 7.9 years old) who received off-pump CABG, and group 2 included 135 patients (93 male, 72.1 ± 10.1 years old; 42 female, 72.3 ± 7.9 years old) who underwent on-pump CABG with cardiopulmonary bypass (CPB) during the same study period. The incidence and predictors of postoperative AF were analyzed. Results: AF developed in 60 cases (28.2%) after CABG. There were higher incidence of myocardial infarction, history of paroxysmal atrial fibrillation, NYHA Fc ≧ 2, β-blocker use, and longer intubation in the on-pump group compared with the off-pump group. However, there was no significant difference relating to the incidence of AF between off-pump (23.1%) and on-pump (31.1%) groups. The predictors of AF were old age (> 65 years, OR: 5.008, 95% CI: 1.4-17.9, p = 0.013), history of paroxysmal AF (OR: 7.851, 95% CI: 2.4-25.6, p = 0.001) and prolonged postoperative intubation days (> 3 days, OR: 5.303, 95% CI: 2.2-13.1, p <0.001). Conclusion: In this retrospective study, off-pump CABG surgery did not decrease the incidence of postoperative AF.

Original languageEnglish
Pages (from-to)205-211
Number of pages7
JournalActa Cardiologica Sinica
Issue number4
Publication statusPublished - Dec 2006
Externally publishedYes


  • Atrial fibrillation
  • Coronary artery bypass grafting
  • Electrophysiology

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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