OPCAB
Pronunciation: OP-cab
Also written as: OPCAB — off-pump coronary artery bypass
Off-pump coronary artery bypass; technique performing bypass surgery on the beating heart without cardiopulmonary bypass.
Full Definition
Off-pump coronary artery bypass (OPCAB) is a surgical technique for performing coronary revascularization on the beating heart without the use of cardiopulmonary bypass. The procedure utilizes mechanical stabilizers and positioning devices to immobilize specific areas of the heart while maintaining cardiac function and systemic circulation. OPCAB may reduce complications associated with cardiopulmonary bypass, including stroke, renal dysfunction, and inflammatory response. However, it requires specialized expertise and may be technically more challenging, particularly for posterior vessel grafting. Patient selection depends on coronary anatomy, left ventricular function, and surgeon experience.
Usage
Usage note: Specialized technique requiring significant expertise. Not suitable for all patients or all coronary anatomies.
In Context
- "The patient underwent successful three-vessel OPCAB with excellent graft flows." — Operative summary
- "OPCAB technique was chosen to avoid complications of cardiopulmonary bypass in this high-risk patient." — Surgical planning note