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About

Dr. Kei Hosoda is a leading surgical oncologist whose research centers on advancing minimally invasive techniques for gastrointestinal cancers, particularly gastric, esophageal, and rectal malignancies. His work has fundamentally shaped the safety and efficacy of robotic-assisted surgery in these fields. Dr. Hosoda’s most impactful contribution is his seminal study on postoperative pancreatic fistula after gastrectomy (35 citations), which identified critical risk factors for this life-threatening complication and helped establish modern preventive strategies. He has been a pioneer in demonstrating the advantages of robotic-assisted laparoscopic surgery (RALS) over conventional laparoscopy, with a landmark propensity score-matched analysis (20 citations) showing superior short-term outcomes for rectal cancer. His phase II trial (11 citations) established the safety and feasibility of robotic distal gastrectomy for early gastric cancer, while his work on robot-assisted minimally invasive esophagectomy (17 citations) has been instrumental in reducing pulmonary complications and recurrent laryngeal nerve injury. With over 100 cumulative citations, Dr. Hosoda’s meticulous, outcomes-driven research continues to set new standards for surgical precision and patient safety in oncologic surgery.