Is the risk of bypass surgery high? What are the risks?

Generally, heart bypass surgery has high risks, such as perioperative myocardial ischemia and arrhythmia.

Any surgery has certain risks. Heart bypass surgery belongs to Grade IV surgery, and there may be many complications during surgery, such as perioperative myocardial ischemia. If the patient's right heart drainage is not good, blood will enter the distal coronary artery from the coronary sinus. If the left heart drainage is not good, blood from the ascending aorta root will flow out from the proximal end of the anastomotic stoma, resulting in myocardial ischemia. If there are obvious bleeding symptoms during the operation, it can also lead to arrhythmia, which can lead to death if not treated in time, so the risk of heart bypass surgery is generally high.