[A Case of Upper Gastrointestinal Perforation during Treatment with Regorafenib for Recurrent Rectal Cancer].

A 58-year-old man was treated with radical excision for rectal cancer. Pathological findings were pT3N1M0, Stage ⅢB, RAS: mutant, BRAF: mutant, MSS. The patient was followed up without adjuvant chemotherapy.

A case of esophageal cancer in a diverticulum treated by surgical resection: a case report.

Background: An esophageal diverticulum is a relatively rare disease, with reports of treatment for esophageal cancer in the diverticulum even rarer.

Case Presentation: The case involved a 72-year-old male with a chief complaint of dysphagia. He was diagnosed with an esophageal diverticulum (Zenker's diverticulum) measuring 10 cm in diameter.

C-reactive protein-to-albumin ratio as a risk factor for anastomotic leakage after anterior resection for rectal cancer with intraoperative use of indocyanine green fluorescence imaging.

Introduction: Indocyanine green fluorescence imaging (ICG-FI) reduces anastomotic leakage (AL) in rectal cancer surgery. However, no studies investigating risk factors for anastomotic leakage specific to the group using ICG-FI have ever previously been conducted. The purpose of this retrospective multicenter study was to ascertain the risk factors for AL in the group using ICG-FI.

Comparison of Survival Between ypStage and pStage in Gastric Cancer.

Background/aim: In East Asia, the standard treatment for resectable advanced gastric cancer involves gastrectomy and postoperative adjuvant chemotherapy; nevertheless, neoadjuvant chemotherapy is also expected to improve survival rates. However, it remains unclear whether the same criteria can be used to select adjuvant chemotherapy for patients treated with neoadjuvant chemotherapy, or how survival varies between post-chemotherapy pathological Stage (ypStage) and pathological Stage without chemotherapy (pStage). This study evaluated the long-term outcomes of ypStage and pStage in gastric cancers and investigated the optimal intensity of adjuvant chemotherapy for patients who have received preoperative chemotherapy.

Prospective observational study comparing the perioperative outcomes of laparoscopic colectomy with or without epidural anesthesia: the Kanagawa Yokohama Colorectal Cancer Study Group (KYCC) 1806.

Purpose: There have been no adequate comparisons of the efficacy, safety, and efficiency of analgesia after laparoscopic colorectal resection (LAC), with and without epidural anesthesia (EDA).

Methods: This was a multicenter prospective observational study of patients undergoing LAC. The primary end point was the mean visual analog scale (VAS) score on postoperative days (PODs) 1-7.

Albumin-Globulin Ratio Is an Independent Prognostic Factor for Gastric Cancer Patients who Received Curative Treatment.

Background/aim: The albumin-globulin ratio (AGR) is a useful biomarker for predicting postoperative complications and a poor prognosis in patients with various types of cancer and can be evaluated without invasive testing or surgery. In this study, we aimed to evaluate the usefulness of the AGR in predicting the short- and long-term prognoses of patients with gastric cancer who underwent radical resection at our institution.

Patients And Methods: This study is a retrospective cohort analysis in which eligible patients were selected from the medical records of patients who underwent radical resection for gastric cancer at Yokohama City University from 2000 to 2020 and their medical records were reviewed.

The Naples Prognostic Score Is an Independent Prognostic Factor for Gastric Cancer Patients Who Receive Curative Treatment.

Background/aim: This study aimed to evaluate the clinical impact of the Naples Prognostic Score (NPS) in patients with gastric cancer and to clarify the potential of the NPS as a nutritional and inflammation evaluation system.

Patients And Methods: This study included 158 patients who underwent curative treatment for gastric cancer between 2005 and 2020. The prognosis and clinical pathological parameters of the high-NPS (NPS >2) and low-NPS (NPS=0, 1) groups were analyzed.

Non-invasive intraductal oncocytic papillary neoplasm forming a protruding lesion toward the duodenum from the accessory papilla: a case report.

Background: Intraductal oncocytic papillary neoplasm (IOPN), previously classified as a subtype of intraductal papillary mucinous neoplasm (IPMN), has been described as an independent disease by the WHO since 2019. IOPN is a rare tumor, with few reported cases. Herein, we report a case of resected non-invasive IOPN that formed a lesion protruding toward the duodenum from the accessory papilla.

[A Case of T-Cell Lymphoma Treated by Emergency Surgery Due to Bleeding of Jejunal Lesion].

A 78-year-old man was aware of lightheadedness and darkness at a routine outpatient visit, and his blood pressure was declined at 87/51 mmHg. Contrast-enhanced CT scan showed an extravascular leakage image at jejunum. We diagnosed as small intestinal hemorrhage.

Clinical Impact of Preoperative Neutrophil-to-Lymphocyte Ratio in Surgical Patients With Pancreatic Cancer.

Background/aim: The prognosis of patients with pancreatic cancer remains poor, despite recent advances in surgical techniques, perioperative care, neoadjuvant and adjuvant chemotherapy. This study aimed to investigate the preoperative neutrophil-to-lymphocyte ratio (NLR) as a prognostic factor and determine the optimal cutoff value in surgical patients with pancreatic cancer.

Patients And Methods: We retrospectively enrolled 461 patients with pancreatic cancer who underwent resection between January 2013 and December 2022 in the Department of Gastrointestinal Surgery at Kanagawa Cancer Center.

Lymphocyte to Monocyte Ratio Is an Independent Prognostic Factor in Patients With Esophageal Cancer Who Receive Curative Treatment.

Background/aim: This study evaluated the clinical impact of the lymphocyte-to-monocyte ratio (LMR) in patients with esophageal cancer who received curative treatment and perioperative adjuvant treatment. The association between LMR and the clinicopathological characteristics of patients with esophageal cancer was also investigated.

Patients And Methods: This study included 181 patients who underwent curative treatment for esophageal cancer between 2005 and 2020.

Pretreatment Fibrinogen Level Is a Prognostic Factor for Esophageal Cancer Patients Who Receive Curative Treatment.

Background/aim: Pretreatment fibrinogen levels are a promising prognostic marker for some malignancies. The aim of the present study was to evaluate the clinical impact of fibrinogen levels before treatment in patients with esophageal cancer who underwent curative resection.

Patients And Methods: This study included 123 patients who underwent curative treatment for esophageal cancer between 2005 and 2020.

Geriatric Nutritional Risk Index Is an Independent Prognostic Factor for Patients With Esophageal Cancer Who Receive Curative Treatment.

Background/aim: The perioperative nutritional status has recently been reported to influence the prognosis of various types of cancer. We investigated the relationship between the Geriatric Nutritional Risk Index (GNRI) and overall survival (OS) and recurrence-free survival (RFS) in patients with esophageal cancer who received radical and adjuvant therapy.

Patients And Methods: Patients who underwent radical resection for esophageal cancer at our hospital (n=187) were included.

[Laparoscopic Low-Anterior Resection for Sigmoid Colon Cancer and Rectosigmoid Adenoma in a Patient with Situs Inversus].

A 63-year-old woman, who were in a nursing house, visited our hospital with complaints of bloody stools and anemia. Some investigations were performed, CS and CT revealed her diagnosis with sigmoid colon cancer(cT3N0M0)and rectosigmoid adenoma with situs inversus(SI). Laparoscopic low-anterior resection was performed.

[A Case of Desmoid Fibromatosis of the Small Intestinal Mesentery Institutions].

The patient was a 27-year-old man. He was referred to our hospital because he was aware of a mass in his abdomen. An abdominal ultrasound showed a 70-mm mass lesion.

The Clinical Influence of Geriatric Nutritional Risk Index in Patients With Gastric Cancer Who Receive Curative Treatment.

Background/aim: We evaluated the clinical impact of the Geriatric Nutritional Risk Index (GNRI) in patients who received curative treatment and perioperative adjuvant treatment. We also investigated the association between the GNRI and the clinicopathological features of patients with GC.

Patients And Methods: This study included 280 patients who underwent curative treatment for GC between 2005 and 2020.

The C-reactive Protein to Prealbumin Ratio Is an Independent Prognostic Factor for Patients With Gastric Cancer Who Receive Curative Surgery.

Background/aim: The C-reactive protein to prealbumin ratio (CPAR) has been proposed and introduced in gastrointestinal cancer management. This study aimed to evaluate the clinical impact of the CPAR in patients with gastric cancer (GC) who received curative treatment.

Patients And Methods: This study included 447 patients who underwent curative treatment for GC between 2013 and 2017.

The Clinical Impact of the Pretreatment Platelet-to-Lymphocyte Ratio in Gastric Cancer Patients Who Receive Curative Treatment.

Background/aim: The platelet-to-lymphocyte ratio (PLR) is a promising prognostic marker in some malignancies. The present study evaluated the clinical impact of the PLR in patients with gastric cancer who underwent curative resection.

Patients And Methods: This study included 258 patients who underwent curative treatment for gastric cancer between 2005 and 2020.

The Clinical Impact of Change in the Neutrophil to Lymphocyte Ratio During the Perioperative Period in Gastric Cancer Patients Who Receive Curative Gastrectomy.

Aim: Recently, change in the neutrophil to lymphocyte ratio (cNLR) has been shown to be a promising prognostic inflammation marker in some malignancies. The aim of the present study was to evaluate the clinical impact of the cNLR in gastric cancer patients who received curative gastrectomy.

Patients And Methods: The present study included 450 patients who underwent curative treatment for gastric cancer between 2013 and 2017 at Kanagawa Cancer Center.

The Clinical Impact of Change in the C-Reactive Protein/Albumin Ratio in Gastric Cancer Patients Who Receive Curative Treatment.

Background: Recently, change in the C-reactive protein/albumin ratio (CAR) has become a promising prognostic marker in some malignancies. The aim of the present study was to evaluate the clinical impact of change in the CAR in gastric cancer patients who received curative resection.

Method: The present study included 458 patients who underwent curative treatment for gastric cancer between 2013 and 2017.

Short- and long-term outcomes of transanal decompression tube and self-expandable metallic stent for obstructive colorectal cancer based on a multicenter database (KYCC2110).

Aim: There are well-known methods for decompressing the colorectal tract before surgery, including transanal decompression tubes (TDT) and self-expanding metallic stents (SEMS). This study aimed to compare the short and long-term results in patients with malignant large bowel obstruction in whom TDT or SEMS were placed before surgery.

Methods: This retrospective observational study enrolled 225 patients with malignant large bowel obstruction in whom TDT or SEMS were placed preoperatively and underwent R0 resection between 2008 and 2020.