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Updated: Jan 28, 2026

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Early-Term Outcomes of Off-Pump versus On-Pump Beating-Heart Coronary Artery Bypass Surgery

Yusuf Velioglu1, Mehmet Isik2

  • 1Department of Cardiovascular Surgery, Faculty of Medicine, Abant Izzet Baysal University, Bolu, Turkey.

The Thoracic and Cardiovascular Surgeon
|March 6, 2019
PubMed

Insights

Off-pump coronary artery bypass surgery showed similar early outcomes to on-pump beating-heart surgery, but with shorter hospital stays and fewer complications like atrial fibrillation. This suggests off-pump may be a superior choice for coronary artery bypass grafting.

Area of Science:

  • Cardiovascular Surgery
  • Cardiac Surgery Outcomes

Background:

  • Comparison of off-pump versus on-pump beating-heart coronary artery bypass surgery (CABG) outcomes.
  • Analysis of early-term results for these two CABG techniques.

Purpose of the Study:

  • To compare early-term outcomes of off-pump vs. on-pump beating-heart CABG.
  • To evaluate differences in mortality, complications, and resource utilization.

Main Methods:

  • Retrospective analysis of 736 patients undergoing elective first-time beating-heart CABG from 2011-2018.
  • Patients divided into off-pump (n=399) and on-pump beating-heart (n=337) groups.
  • Comparison of preoperative, intraoperative, and postoperative data.

Main Results:

  • No significant differences in mortality or major complications, except for higher atrial fibrillation rates in the on-pump group.
  • On-pump group had more distal bypasses, longer hospital stays, lower hematocrit, and more blood transfusions.
  • Groups were similar in baseline characteristics and demographics.

Conclusions:

  • Off-pump and on-pump beating-heart CABG have similar early mortality and major complication rates, excluding atrial fibrillation.
  • Off-pump CABG appears superior regarding hospital stay, blood transfusion needs, and atrial fibrillation incidence.
  • Further prospective randomized studies are recommended for more definitive data.
Abstract

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