In CABG planning, which scenario makes off-pump CABG (OPCAB) particularly advantageous?

• A. To avoid CPB-related systemic inflammation and coagulation issues in high-risk patients; but is technically challenging.
• B. To avoid needing any anesthesia.
• C. Because CPB improves inflammation.
• D. Because OPCAB is always easier.

Answer: (A)

Off-pump CABG is especially advantageous when the goal is to avoid the inflammatory and coagulation disturbances that come with cardiopulmonary bypass. Using CPB exposes blood to artificial surfaces and triggers a systemic inflammatory response, along with platelet dysfunction and coagulation alterations, which can worsen organ function and increase bleeding and transfusion needs. In high-risk patients—such as those with poor ventricular function, multiorgan disease, renal impairment, or other inflammatory or coagulopathic conditions—skipping CPB can lessen these risks by avoiding that inflammatory cascade and coagulopathy. The beating-heart technique of OPCAB achieves revascularization without bypass, but it requires advanced skill because achieving precise grafting on a moving heart and maintaining stable hemodynamics can be challenging, especially for certain targets or complex multivessel disease.