off-pump CABG
Coronary artery bypass surgery performed on the beating heart without cardiopulmonary bypass support.
Full Definition
Off-pump coronary artery bypass grafting (OPCAB) is a surgical technique that allows coronary revascularization while the heart continues to beat, avoiding the need for cardiopulmonary bypass and cardiac arrest. The procedure requires specialized stabilization devices to immobilize specific regions of the heart during anastomosis construction. Off-pump surgery potentially reduces complications associated with cardiopulmonary bypass, including stroke, bleeding, and systemic inflammatory response. However, it demands greater technical expertise and may limit the completeness of revascularization in some patients.
Usage
Usage note: Also abbreviated as OPCAB; distinguish clearly from on-pump procedures in documentation.
In Context
- "The patient underwent successful off-pump CABG with three bypass grafts on the beating heart." — Operative summary
- "Off-pump CABG may reduce stroke risk in elderly patients with significant comorbidities." — Clinical research paper