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Gastroenterological Surgery 1 Director：EBATA, Tomoki (Professor)

Experienced staff do their utmost to treat digestive diseases, mainly tumors

Digestive Surgery 1 provides medical care mainly for tumors in the gastrointestinal tract including stomach, duodenum, small intestine, large intestine, liver, biliary tract (gallbladder and bile duct), and pancreas.


Medical Care System

A total of 30 surgeons with eight years or more of experience provide medical care. In the outpatient clinic, 13 surgeons with special expertise provide medical care three times a week (Monday, Wednesday, and Friday). In the inpatient department, at least two surgeons mainly provide medical care for each patient, but the treatment strategy and clinical course are always discussed with all members in our department.

Target Diseases

We perform preoperative diagnosis, surgical therapy, perioperative management, postoperative chemotherapy, and therapy for recurrent cancer. We treat diseases such as hepatobiliary and pancreatic malignant tumor, chronic pancreatitis, benign biliary tract disease (such as gallstones), esophageal tumor, stomach tumor, large intestine / colorectal tumor, pelvic tumor, and retroperitoneal tumor.

Strong Fields

We are confident in performing difficult surgery such as hepatopancre - atoduodenectomy, hepatectomy with combined vascular resection for far-advanced biliary cancer and pelvic exenteration, and thoracolaparotomic esophagectomy. Especially, our department has the best treatment results for hilar cholangiocarcinoma regardless of whether in or outside of Japan. Recently we have also actively conducted non-invasive surgeries, such as laparoscopic liver resection, laparoscopic pancreatic resection, single incision laparoscopic cholecystectomy, and laparoscopic hernia repair.

Clinical Results

The total number of surgeries in 2022 was 559. Of those, hepatectomy for biliary cancer: 42; other hepatectomies: 43; laparoscopic cholecystectomy: 41; pancreaticoduodenectomy: 41; distal pancreatectomy: 7 ; surgery for esophageal cancer: 25 (of those, 9 are thoracoscopic surgery, and 10 are robotic surgery); other esophageal surgery: 4; gastric cancer: 22 (of those, 14 are laparoscopic surgery); surgery for colon cancer: 77 (of those, 64 are laparoscopic surgery); surgery for rectal cancer: 52 (of those, 39 are laparoscopic surgery, and 8 are pelvic exenteration). Surgery for retroperitoneal tumor: 56. The number of resections for hilar cholangiocarcinoma is the largest in Japan.

Advanced Medicine and Research

A phase II clinical study of postoperative adjuvant chemotherapy with TS-1 in patients who underwent resection for liver metastasis resulting from colorectal cancer. The study for the hepatoprotective effect of steroid administration before hepatectomy in major hepatectomy with extrahepatic bile duct resection.