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About

Tatsuya Orimo is a leading hepatobiliary surgeon whose research focuses on refining surgical outcomes for major liver resections, particularly in non-cirrhotic patients. His most impactful work, the 2023 study "Novel Benchmark Values for Open Major Anatomic Liver Resection in Non-cirrhotic Patients," establishes gold-standard reference values for best achievable outcomes after open major hepatectomy. This pioneering contribution addresses a critical gap in the field—the lack of standardized benchmarks for comparing results across centers, indications, and techniques. By defining optimal performance metrics, Orimo’s research enables surgeons worldwide to evaluate their own outcomes against these benchmarks, driving improvements in patient safety and surgical quality. With 13 citations already, this work is rapidly becoming a foundational reference in hepatobiliary surgery. Orimo’s dedication to evidence-based surgical standards underscores his commitment to advancing liver surgery, offering clinicians and researchers a clear framework for assessing and enhancing care in complex hepatic procedures.