OPCAB
OPCAB
Off-pump coronary artery bypass Interventional cardiologyA type of minimally invasive cardiac surgery in which cardiopulmonary bypass is eliminated and the heart continues to beat while the surgery is being performed as with MIDCAB, but in which a full median sternotomy is performed to expose the entire heart for multiple bypasses to more than 1 coronary artery. See MIDCAB, Minimally invasive cardiac surgery.