Coronary bypass, formally coronary artery bypass graft (CABG) surgery, is a procedure in which surgeons use grafts from veins or arteries to reroute blood flow around blocked coronary arteries, restoring circulation to heart muscle. CABG is typically recommended for severe multivessel coronary artery disease or left main coronary obstruction, especially when symptoms or stress tests show significant ischemia. While bypass can relieve angina and improve outcomes, it does not cure underlying atherosclerosis. Long-term prognosis depends on graft patency, risk-factor control, heart function, and adherence to medications and lifestyle changes.

Underwriters carefully review coronary bypass cases through operative reports, catheterization studies, post-surgical stress tests, and ejection fraction measurements. They focus on the number and location of grafts, absence of major complications, and stability since surgery. Many CABG patients receive rated offers only after a waiting period and evidence of good follow-up care. Advisors gather detailed cardiac records and manage expectations regarding ratings and available product types. Understanding coronary bypass helps advisors anticipate underwriting reactions and counsel post-surgery clients on realistic coverage options and timelines.