Outcomes and risk factors of postoperative hepatic dysfunction in patients undergoing acute type A aortic dissection surgery

Acute aortic dissection is the most common medical emergency involving the aorta. The mortality of acute type A aortic dissection (AAAD) ranges from 40% to 50% within 48 hours of onset. Surgery for AAAD remains a challenge for cardiovascular surgeons (1-3). Hepatic dysfunction (HD) has been suggested as an important postoperative risk factors for mortality and morbidity after cardiovascular surgery (4,5). Moreover, due to the complexity of surgery, long operation time, and substantial trauma, AAAD is easily complicated by renal insufficiency, HD, and bowel ischemia after surgery, which leads to increased mortality (1). Studies focusing on HD after AAAD surgery are rare, and little is known about postoperative HD outcomes and risk factors