Is coronary artery bypass surgery risky?
Jun 04, 2019
Source: Cainiu Health
Dr. Song Qiang
Introduction
Bypass surgery is now a highly mature procedure, widely accepted overseas. In China, acceptance of this surgery has steadily increased over the past 10–20 years. The procedure itself is well-established—both technically and in terms of complication risk—and is considered routine. The risk associated with bypass surgery is approximately 1% to 2%.
Coronary artery bypass grafting (CABG) is now a highly mature surgical procedure. It is widely accepted internationally, and over the past ten to twenty years, acceptance of this surgery has steadily increased in China as well. From a technical standpoint—and considering complication risks—CABG is considered a routine, well-established operation. In China, approximately tens of thousands of patients undergo this surgery annually, while the number is even higher abroad.
That said, like any surgical procedure, CABG inherently carries certain risks. As the heart is the most vital organ in the body, the surgical risk depends on several key factors:
First, timing of surgery—specifically, how early or late the disease is diagnosed. Delayed diagnosis may lead to irreversible damage, thereby increasing surgical risk.
Second, the patient’s overall health status. For example, long-standing diabetes or impaired renal function—particularly in patients requiring dialysis—significantly elevates surgical risk. Additionally, since CABG is commonly performed in elderly patients with coronary artery disease, age-related decline in organ function further increases perioperative risk.
In clinical practice, many patients undergoing CABG are elderly and have multiple comorbidities—even those in their nineties have successfully undergone the procedure. Outcomes are especially favorable when off-pump CABG (beating-heart surgery) is employed, which enhances patient safety. Globally, the overall surgical mortality rate for CABG remains low—approximately 1% to 2%—making it a relatively safe procedure.
