Ryota Koyama
Shibukawa, 3778577, Japan
Last Updated: 09/26/2026
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Found 31 publications
Effects of Reduction of Early Postoperative Anal Pain following Hemorrhoid Surgery with Epidural Anesthesia: A Pilot Study.
Journal: Journal of the anus, rectum and colon
Published: April 16, 2025
Face and construct validity assessment of training models for intestinal anastomosis in low-birth-weight infants.
Journal: Pediatric surgery international
Published: August 01, 2021
Optimal Viewing Direction of the Oblique Laparoscope in Single-Incision Laparoscopic Percutaneous Extraperitoneal Closure for Inguinal Hernia.
Journal: Journal of laparoendoscopic & advanced surgical techniques. Part A
Published: November 24, 2020
A retrospective analysis of emergency surgery for cases of acute abdomen during cancer chemotherapy. Case series.
Journal: Annals of medicine and surgery (2012)
Published: July 03, 2020
Three-step tumescent local anesthesia technique for inguinal hernia repair.
Journal: Annals of gastroenterological surgery
Published: May 31, 2020
A case of laparoscopic resection of leiomyosarcoma arising in the mesentery of descending colon: a case report and review of the literature.
Journal: Clinical case reports
Published: May 24, 2020
Metachronous Pancreatic and Thyroid Metastases from Primary Soft-Tissue Myoepithelioma in the Clavicular Region: A Case Report of a Long-Term Survivor.
Journal: The American journal of case reports
Published: January 28, 2020
The safety and feasibility of tumescent local anesthesia for inguinal hernia repair: A review of 273 consecutive patients.
Journal: Asian journal of surgery
Published: December 30, 2019
Rapidly Growing Desmoid-Type Fibromatosis of the Mesentery of the Small Intestine after Distal Gastrectomy for Gastric Cancer.
Journal: Case reports in gastroenterology
Published: December 18, 2019
Chylous Ascites Accompanying Internal Hernia after Total Gastrectomy with Roux-en-Y Reconstruction.
Journal: Case reports in gastroenterology
Published: October 23, 2019
Oncological outcomes of repeat metastasectomy for recurrence after hepatectomy for colorectal liver metastases. A case series.
Journal: Annals of medicine and surgery (2012)
Published: October 21, 2019
Splenic marginal zone lymphoma treated with laparoscopic splenectomy: A case report.
Journal: International journal of surgery case reports
Published: October 05, 2019
Last Updated: 09/26/2026