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About

Dr. Keun Soo Ahn is a leading hepatobiliary surgeon whose work has fundamentally advanced the field of major liver resection. His research centers on refining surgical techniques and establishing quality benchmarks for both laparoscopic and open hepatectomy. Dr. Ahn’s landmark contribution is a large-scale, multicenter study on laparoscopic major liver resection in Korea, which analyzed over 1,000 cases from 2001 to 2011. This work, cited 69 times, provided crucial evidence for the safety and feasibility of minimally invasive approaches in complex liver surgery. More recently, Dr. Ahn has focused on defining excellence in open surgery. His 2023 study established novel benchmark values for best achievable outcomes in open major anatomic hepatectomy for non-cirrhotic patients, offering a critical reference standard for comparing surgical performance across institutions. This work, already cited 13 times, is shaping how surgeons evaluate and improve their practice. Through these contributions, Dr. Ahn has provided the surgical community with both the data to support advanced techniques and the metrics to measure their success.