Lin YF, et al. - Authors evaluated how acute kidney injury requiring dialysis (AKI-D) correlates with postsurgical outcomes. They retrospectively investigated all patients from the National Health Insurance Research Database with AKI-D 18 years or older undergoing four major surgeries (cardiothoracic, esophagus, intestine, and liver). The top risk factor for 30-day and long-term mortality following major surgery is AKI-D. Compared with non- cardiothoracic surgery (CTS) patients with AKI-D, Patients undergoing CTS showed less in-hospital, 30-day, and long-term mortality. Compared with cardiothoracic surgery (CTS) patients, more comorbidities of sepsis, azotemia, hypoalbuminemia, and metabolic acidosis were seen in non-CTS patients. In-hospital, 30-day, and long-term mortality correlated with AKI-D during hospitalization.