• Issue

    Annals of Gastroenterological Surgery: Volume 9, Issue 4

    629-875
    July 2025

ISSUE INFORMATION

Open Access

Issue Information

  • Pages: 629-631
  • First Published: 01 July 2025

SYSTEMATIC REVIEW

Open Access

Short-term and long-term outcomes of self-expandable metallic stent placement versus creation of a diverting stoma for obstructive colorectal cancer: A systematic review and meta-analysis

  • Pages: 632-642
  • First Published: 01 April 2025
Short-term and long-term outcomes of self-expandable metallic stent placement versus creation of a diverting stoma for obstructive colorectal cancer: A systematic review and meta-analysis

SEMS contributed to comparable outcomes including postoperative complications, mortality, and long-term outcomes, but significantly reduced SSI. These findings support the broader adoption of SEMS in clinical practice, particularly requiring minimized invasiveness and improving patient quality of life are prioritized.

REVIEW ARTICLE

Open Access

Advantages of subtotal gastrectomy for upper third gastric cancer: A systematic review and meta-analysis

  • Pages: 650-657
  • First Published: 24 January 2025
Advantages of subtotal gastrectomy for upper third gastric cancer: A systematic review and meta-analysis

We revealed that subtotal gastrectomy (STG) has its advantage over total gastrectomy on shorter operation time, less complication rates, and lower body weight loss by meta-analysis. Although there are some controversies, STG can be an ideal option for patients with gastric cancer of upper third stomach.

ORIGINAL ARTICLE

Open Access

Prognostic significance of six autoantibodies in esophageal squamous cell carcinoma: A prospective multi-institutional study

  • Pages: 658-667
  • First Published: 16 January 2025
Prognostic significance of six autoantibodies in esophageal squamous cell carcinoma: A prospective multi-institutional study

The six autoantibodies (Sui1, p62, RalA, p53, NY-ESO-1 and c-myc) positive group had poor prognosis compared to autoantibody negative group. A panel of autoantibodies against a tumor associated antigen in esophageal cancer patients had an additive effect with SCC-Ag to detect esophageal SCC even in early stage.

Open Access

The impact of delayed adjuvant chemotherapy on survival in gastric cancer patients with and without preoperative chemotherapy

  • Pages: 668-677
  • First Published: 16 January 2025
The impact of delayed adjuvant chemotherapy on survival in gastric cancer patients with and without preoperative chemotherapy

Delayed initiation of adjuvant chemotherapy (AC) is associated with significantly poorer postoperative survival in patients with gastric cancer, irrespective of whether preoperative chemotherapy was administered. These findings emphasize the importance of timely AC initiation to improve long-term outcomes in this patient population.

Open Access

Prognostic factors for patients with esophageal cancer who achieve pathological complete response in the primary tumor after upfront chemotherapy or chemoradiotherapy

  • Pages: 678-686
  • First Published: 20 January 2025
Prognostic factors for patients with esophageal cancer who achieve pathological complete response in the primary tumor after upfront chemotherapy or chemoradiotherapy

Male gender and pathological lymph node metastasis are independent poor prognostic factors in patients with esophageal cancer who receive upfront treatment followed by surgery and achieved pathological complete response of the primary tumor. Among patients without pathological lymph node metastasis, the upfront chemotherapy group showed significantly better both overall and relapse-free survival than the upfront chemoradiotherapy group.

Open Access

Perioperative outcomes of esophagectomy after doublet versus docetaxel-based triplet neoadjuvant chemotherapy in older patients: A nationwide inpatient database study in Japan

  • Pages: 687-697
  • First Published: 05 February 2025
Perioperative outcomes of esophagectomy after doublet versus docetaxel-based triplet neoadjuvant chemotherapy in older patients: A nationwide inpatient database study in Japan

In this nationwide inpatient database study of 5229 patients aged 70–79 years who underwent esophagectomy for cancer after neoadjuvant chemotherapy, overlap propensity score weighting analysis showed that neoadjuvant docetaxel-based triplet regimen (docetaxel, cisplatin, and 5-fluorouracil) was not associated with a higher incidence of perioperative adverse events (major and respiratory complications, mortality, and 30-day unplanned readmission) compared with the doublet regimen (cisplatin and 5-fluorouracil). Propensity score matching and instrumental variable analyses yielded similar results.

Open Access

Prognostic impact of postoperative fixed-point inflammation in patients with gastric cancer after curative gastrectomy: A validation cohort study

  • Pages: 698-710
  • First Published: 04 March 2025
Prognostic impact of postoperative fixed-point inflammation in patients with gastric cancer after curative gastrectomy: A validation cohort study

The cutoff value of CRP by sex for poor OS remains unclear. This study aimed to determine the cutoff values of CRP on postoperative day 3 to predict poor OS in men and women with gastric cancer after radical gastrectomy. The high-CRP group has poorer overall survival than the low-CRP group for gastric cancer after gastrectomy. High-CRP was an independent poor prognostic factor for overall survival, regardless of postoperative complications.

Open Access

Bowel preparation and surgical site infections in laparoscopic and robot-assisted right-sided colon cancer surgery with intracorporeal anastomosis: A retrospective study

  • Pages: 711-718
  • First Published: 19 December 2024
Bowel preparation and surgical site infections in laparoscopic and robot-assisted right-sided colon cancer surgery with intracorporeal anastomosis: A retrospective study

This retrospective study investigated risk factors for surgical site infections (SSIs) in right-sided colon cancer surgeries using intracorporeal anastomosis (IA). The results demonstrated that preoperative oral antibiotics (OA) significantly reduced SSI rates, with OA identified as an independent protective factor, suggesting its beneficial role in decreasing postoperative infection risks.

Open Access

Late anastomotic complication after laparoscopic surgery for clinical stage I low rectal cancers located within 5 cm of the anal verge: Sub-analysis of the ultimate trial

  • Pages: 719-729
  • First Published: 07 January 2025
Late anastomotic complication after laparoscopic surgery for clinical stage I low rectal cancers located within 5 cm of the anal verge: Sub-analysis of the ultimate trial

Anastomotic stenosis and late fistula formation frequently emerge as secondary consequences of early AL, and represent significant complications linked to permanent stoma creation, often proving resistant to treatment. Intestinal prolapse is a characteristic anastomotic complication of ISR that can be caused by excessive intestinal mobilization. These findings provide valuable insights into guiding sphincter-sparing surgery for lower rectal cancer and highlight aspects that have not been fully understood until now.

Open Access

Cost-effectiveness analysis of postoperative surveillance for stage IV colorectal cancer in Japan: An economic modeling study

  • Pages: 730-738
  • First Published: 13 January 2025
Cost-effectiveness analysis of postoperative surveillance for stage IV colorectal cancer in Japan: An economic modeling study

This economic evaluation used a Markov state-transition model to analyze the cost-effectiveness of surveillance strategies recommended by various academic societies. This study found that the surveillance program proposed by the Japanese Society for Cancer of the Colon and Rectum (JSCCR) was the most cost-effective, with an incremental cost-effectiveness ratio of 19 256 USD compared with the next most cost-effective program. These findings suggest that intensive postoperative surveillance as recommended by the JSCCR is acceptable for stage IV colorectal cancer.

Open Access

Short-term outcomes of intracorporeal anastomosis in laparoscopic colectomy for colon cancer: A nationwide, multi-institutional cohort study in Japan (ICAN study)

  • Pages: 739-749
  • First Published: 21 January 2025
Short-term outcomes of intracorporeal anastomosis in laparoscopic colectomy for colon cancer: A nationwide, multi-institutional cohort study in Japan (ICAN study)

We retrospectively compared intracorporeal and extracorporeal anastomosis in patients undergoing laparoscopic colectomy for colon cancer in 46 institutions by using propensity-score matching. Intracorporeal anastomosis showed advantages over extracorporeal anastomosis in terms of blood loss, intraoperative vascular injury, bowel recovery, and length of hospital stay, despite a longer operative time.

Open Access

Clinical significance of preoperative Glasgow prognostic score in patients with colorectal cancer and synchronous peritoneal metastases

  • Pages: 750-760
  • First Published: 24 January 2025
Clinical significance of preoperative Glasgow prognostic score in patients with colorectal cancer and synchronous peritoneal metastases

Preoperative GPS2 is an independent poor prognostic factor in patients with colorectal cancer and synchronous peritoneal metastases, and surgical resection does not improve prognosis in patients with GPS2. Preoperative GPSs may be used as indicators for surgical resection of synchronous peritoneal metastases.

Open Access

Regional and patient characteristic disparities in the outcomes of minimally invasive surgery for colorectal cancer in Japan

  • Pages: 769-784
  • First Published: 03 April 2025
Regional and patient characteristic disparities in the outcomes of minimally invasive surgery for colorectal cancer in Japan

This study aimed to clarify whether differences in minimally invasive surgery outcomes are associated with regional and patient characteristics. This study found regional and patient characteristic disparities in minimally invasive surgical outcomes; national policies should be implemented to address these inequities.

Open Access

Survival benefit of adjuvant therapy completion with early initiation for patients with pancreatic ductal adenocarcinoma

  • Pages: 785-793
  • First Published: 25 December 2024
Survival benefit of adjuvant therapy completion with early initiation for patients with pancreatic ductal adenocarcinoma

Adjuvant completion with early initiation may contribute to the improved survival of patients with pancreatic ductal adenocarcinoma.

Open Access

Optimal duration of antimicrobial prophylaxis in patients undergoing distal pancreatectomy: A multicenter cohort study

  • Pages: 794-803
  • First Published: 02 January 2025
Optimal duration of antimicrobial prophylaxis in patients undergoing distal pancreatectomy: A multicenter cohort study

Prolonged administration of antimicrobial prophylaxis might not be effective to prevent surgical site infections after distal pancreatectomy compared to intraoperative or up to 24-h administration.

Open Access

Osteopenic occult vertebral fracture is associated with poor oncological outcome in patients with hepatocellular carcinoma after hepatic resection

  • Pages: 804-813
  • First Published: 24 January 2025
Osteopenic occult vertebral fracture is associated with poor oncological outcome in patients with hepatocellular carcinoma after hepatic resection

Osteopenic occult vertebral fracture (OVF) was associated with poor long-term outcomes in patients with HCC after hepatic resection. Osteopenic OVF had a poorer prognosis than that of patients with either osteopenia or OVF.

Open Access

Impact of primary tumor clinicopathological factors on prognosis after hepatic resection for rectal liver metastases

  • Pages: 814-821
  • First Published: 24 January 2025
Impact of primary tumor clinicopathological factors on prognosis after hepatic resection for rectal liver metastases

This retrospective study evaluates the prognostic factors in patients undergoing curative hepatic resection for rectal cancer liver metastases. It identifies lateral lymph node metastasis and perineural invasion as significant prognostic factors. Moreover, patients with these factors required nonsurgical treatment in the early postoperative period.

Open Access

Nutritional benefits of pancreas-sparing total duodenectomy for severe duodenal polyposis in patients with familial adenomatous polyposis

  • Pages: 822-829
  • First Published: 29 January 2025
Nutritional benefits of pancreas-sparing total duodenectomy for severe duodenal polyposis in patients with familial adenomatous polyposis

The postoperative nutritional status of patients with familial adenomatous polyposis who underwent pancreas-sparing total duodenectomy was better than that of patients who underwent pancreaticoduodenectomy. This study provides the first direct comparison of postoperative nutritional outcomes between patients with pancreas-sparing total duodenectomy and those with pancreaticoduodenectomy.

Open Access

Institutional learning curve and factors of prolonged operation time of robotic distal pancreatectomy: An analysis of an initial 117 cases

  • Pages: 861-869
  • First Published: 24 February 2025
Institutional learning curve and factors of prolonged operation time of robotic distal pancreatectomy: An analysis of an initial 117 cases

This study verified the effective implementation of robotic distal pancreatectomy as the standard approach in our strategic robotic surgical oncology program. Although an institutional learning curve was observed, the robotic surgery program successfully expanded the number of primary operating surgeons while maintaining stable short-term outcomes.

HOW I DO IT

Open Access

Super Subtotal Gastrectomy: A Novel Reconstruction Concept for Upper Gastric Cancer That Preserves the Fornix

  • Pages: 870-875
  • First Published: 08 May 2025
Super Subtotal Gastrectomy: A Novel Reconstruction Concept for Upper Gastric Cancer That Preserves the Fornix

We developed a novel super subtotal gastrectomy (SSTG) technique for upper-third gastric cancer near the esophagogastric junction. This method preserves the gastric fornix, a major site of ghrelin secretion, while maintaining an oral margin beyond the esophageal junction. SSTG offers a potential solution for reducing postoperative complications such as weight loss and appetite reduction.