This study aimed to clarify the impact of the fornix low perfusion on devascularized whole stomach (DWS). Fornix low perfusion on DWS was a risk factor of anastomotic leakage as well as low anastomotic viability index (AVI) on gastric conduit. Additionally, fornix low perfusion on DWS was correlated with low AVI on gastric conduit.

The oncological resectability criteria for HCC effectively stratified the prognosis after hepatectomy, and the treatment outcomes of hepatectomy for patients in the R and BR1 groups were favorable, indicating the validity of hepatectomy for these patient populations. Meanwhile, treatment outcomes of hepatectomy in patients with two to three BR2-defining factors are limited, suggesting the need for multidisciplinary treatment.

This multicenter prospective cohort study was conducted on 1247 patients who planned to undergo R0 gastrectomy for gastric cancer. The primary endpoint was spontaneous eradication rate 1 year after distal or proximal gastrectomy. As spontaneous H. pylori eradication occurred in more than half of the analyzed patients, retesting for H. pylori. should be considered before postoperative eradication therapy.

The U-shaped flap technique (UFT) is highly effective in reducing reflux symptoms and esophagitis after proximal gastrectomy for upper gastric cancer, especially esophagogastric junction cancer.

This report highlights the optimal risk stratification strategy for residual abscesses after surgical gastroduodenal (GD) perforations treatment. Since the pathogenesis of residual abscess is likely to be multifactorial, careful evaluation of potential risk factors from all angles will help us to provide prompt and precise treatment to patients, including medication history, renal function, microorganisms, and inflammatory biomarkers.

Positive LCY as diagnosed by immunostaining may represent a poor prognostic factor for pathological stage III CRC.

This study aimed to clarify regional disparities in rectal cancer and rectal resections, using a Japanese nationwide database. There was no significant difference between urban and rural prefectures in the number of rectal resections, despite a significantly higher incidence of rectal cancer in rural prefectures and a significantly higher number of board-certified surgeons in urban prefectures. This pattern suggests a potential migration of surgical services from rural to urban areas.

This study examined the effect of preserving the left colic artery (LCA) during Japanese D3 dissection on anastomotic leakage and oncological outcomes in rectal cancer patients. Findings showed no significant difference in leak rate or survival between D3 with LCA preservation and D3 without LCA preservation, highlighting the need for clearer guidelines on LCA preservation criteria.

Kaplan–Meier analyses of RFS (A) and LRFS (B) in non-MRF groups. RFS, relapse-free survival; LRFS, local recurrence-free survival; MRF, mesorectal fascia; Upfront, upfront surgery; CRT, chemoradiotherapy; NAC, neoadjuvant chemotherapy.

Patients with colorectal cancer who underwent laparoscopic or robotic surgery at 19 institutions in Japan between 2018 and 2023 were enrolled. Focusing on patients ≥80 y, we investigated the risk factors for postoperative complications. As a result, rectal cancer, operation time ≥300 min and blood loss ≥100 mL were associated with the occurrence of complications, whereas their comorbidities showed no association.

Surgeons need to pay special attention more to physical status and past medical history than to tumor factors to prevent serious postoperative complications in these older patients with colorectal cancer.

Distribution of Ki-67 proliferation indices in EUS-TA versus surgical histological assessment.

Local ablation therapy is one of the feasible treatment options for patients with hepatocellular carcinoma. However, recurrence after local ablation therapy is often seen in clinical practice. We found that hepatectomy for the recurrence after local ablation therapy has the risk of poor prognosis due to serosal invasion of the liver.

This study suggests that sarcopenia and low CD8+ levels are strong independent poor prognostic factors in patients with HCC. Furthermore, sarcopenia patients with high CD8 levels had much favorable survival and activated local immunity, suggesting that tumor-infiltrating CD8+ T cells may play a functionally important role in sarcopenia patients.

In this systematic review and meta-analysis of seven observational studies, intraoperative redosing of prophylactic antibiotics during lengthy surgeries was associated with a significantly lower risk of SSI than non-redosing. Therefore, for surgeries lasting longer than approximately 3–4 h, we recommend intraoperative redosing to reduce the risk of infection.

We collected over 230 000 colectomy cases with a nationwide inpatient database in Japan and compared surgical outcomes and surveyed the prevalence of each anastomosis. The superiority of both procedures differed by outcome, and stapling anastomosis was much more performed than hand-sewn anastomosis.