Yasuhiro Okumura

Tokyo, Japan

Last Updated: 09/26/2026

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Found 70 publications

Endoloop Fenestration Versus Barbed Suture Reconstitution in Laparoscopic Subtotal Cholecystectomy: A Comparative Analysis of Complications and Outcomes.

Endoloop Fenestration Versus Barbed Suture Reconstitution in Laparoscopic Subtotal Cholecystectomy: A Comparative Analysis of Complications and Outcomes.

Journal: Journal of laparoendoscopic & advanced surgical techniques. Part A

Published: June 16, 2026

Preoperative FIB-4 Index as a Potential Factor Associated With Severe Postoperative Complications and Endogenous Organ Failure After Hepatectomy for Hepatocellular Carcinoma.

Preoperative FIB-4 Index as a Potential Factor Associated With Severe Postoperative Complications and Endogenous Organ Failure After Hepatectomy for Hepatocellular Carcinoma.

Journal: Annals of gastroenterological surgery

Published: May 13, 2026

Reduced-Port Laparoscopic Cholecystectomy Using a Port-Free Organ Retractor: A Comparative Study with Conventional Four-Port Technique.

Reduced-Port Laparoscopic Cholecystectomy Using a Port-Free Organ Retractor: A Comparative Study with Conventional Four-Port Technique.

Journal: Journal of laparoendoscopic & advanced surgical techniques. Part A

Published: April 06, 2026

Prognostic impact of low absolute skeletal muscle mass 6 months after gastrectomy for gastric cancer: a retrospective cohort study.

Prognostic impact of low absolute skeletal muscle mass 6 months after gastrectomy for gastric cancer: a retrospective cohort study.

Journal: Journal of gastrointestinal oncology

Published: December 22, 2025

Worse Prognosis of Patients With Hepatocellular Carcinoma and Portal Vein Invasion Underestimated by Imaging.

Worse Prognosis of Patients With Hepatocellular Carcinoma and Portal Vein Invasion Underestimated by Imaging.

Journal: World journal of surgery

Published: September 14, 2025

Laparoscopic cranial-first approach for gastric mobilization in McKeown esophagectomy.

Laparoscopic cranial-first approach for gastric mobilization in McKeown esophagectomy.

Journal: Surgery today

Published: April 07, 2025

Development of a dynamic prediction model with the inclusion of time-dependent inflammatory biomarker enhances recurrence prediction after curative surgery for stage II or III gastric cancer.

Development of a dynamic prediction model with the inclusion of time-dependent inflammatory biomarker enhances recurrence prediction after curative surgery for stage II or III gastric cancer.

Journal: Japanese journal of clinical oncology

Published: January 14, 2025

Survival outcomes of robot-assisted transmediastinal esophagectomy in patients with esophageal squamous cell carcinoma.

Survival outcomes of robot-assisted transmediastinal esophagectomy in patients with esophageal squamous cell carcinoma.

Journal: Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus

Published: September 10, 2024

Preoperative NUn score serves as a robust predictor of overall and disease-specific survivals following radical surgery for gastric cancer.

Preoperative NUn score serves as a robust predictor of overall and disease-specific survivals following radical surgery for gastric cancer.

Journal: Langenbeck's archives of surgery

Published: February 26, 2024

Alterations in Intratumoral Immune Response before and during Early-On Nivolumab Treatment for Unresectable Advanced or Recurrent Gastric Cancer.

Alterations in Intratumoral Immune Response before and during Early-On Nivolumab Treatment for Unresectable Advanced or Recurrent Gastric Cancer.

Journal: International journal of molecular sciences

Published: October 17, 2023

Percent vital capacity predicts postoperative sarcopenia after esophagectomy in initially nonsarcopenic esophageal cancer patients: a retrospective cohort study.

Percent vital capacity predicts postoperative sarcopenia after esophagectomy in initially nonsarcopenic esophageal cancer patients: a retrospective cohort study.

Journal: Surgery today

Published: May 01, 2023

Lymphatic flow mapping using near-infrared fluorescence imaging with indocyanine green helps to predict lymph node metastasis intraoperatively in patients with esophageal or esophagogastric junction cancer not treated with neoadjuvant chemotherapy.

Lymphatic flow mapping using near-infrared fluorescence imaging with indocyanine green helps to predict lymph node metastasis intraoperatively in patients with esophageal or esophagogastric junction cancer not treated with neoadjuvant chemotherapy.

Journal: Surgical endoscopy

Published: April 24, 2023

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Last Updated: 09/26/2026