Is There a Difference in Postoperative New-Onset Atrial Fibrillation Following On-Pump Versus Off-Pump Coronary Artery Bypass Graft Surgery?
Background: Postoperative atrial fibrillation (POAF) is the most common postoperative arrhythmia after coronary artery bypass graft (CABG) surgery. POAF is associated with an increased risk of stroke, discomfort, longer hospital stay with increased treatment costs. Aim: The aim of our study was to compare POAF prevalence after off-pump versus on-pump CABG. Materials and Methods: Our observational retrospective study included 152 patients, 121with on-pump CABG, and 31 with off-pump CABG. New-onset of POAF was observed, at the Clinic for Cardiovascular surgery, University Clinical Center Sarajevo, in the period from January 2017 to November 2017. Results: General demographics were similar. Occurrence of POAF was significant, developed in 35% of patients in on-pump CABG versus 13% of patients in off-pump CABG (p=0.013). In postoperative period there was significant difference in bleeding (p=0.0001), blood transfusion (p=0.007), vasopressor usage (p =0.003) and blood glucose level (p =0.002). There was a difference, but not significant, in low cardiac output, sepsis, need for hemodialysis and longer stay in intensive care unit. Conclusion: In our study we concluded that the off-pump CABG reduces the occurrence of POAF, which reduces post-operative complications thus shortening the length of stay in the ICU and reduces the costs of treatment.