Scoring model for the diagnosis of colorectal perforation and its differentiation from gastroduodenal perforation.

Purpose: Distinguishing colorectal from gastroduodenal perforations is clinically important and challenging. We aimed to establish a scoring model based on objective findings (excluding computed tomography findings) for the diagnosis of colorectal perforation and its differentiation from gastroduodenal perforation.

Methods: Patients diagnosed with colorectal or gastroduodenal perforations between January 2014 and December 2021 were retrospectively studied.

New definition of borderline resectable colorectal liver metastasis based on prognostic outcomes.

Background: Although surgical resection is the curative treatment for colorectal liver metastases (CRLM), the efficacy of neoadjuvant chemotherapy (NAC) has been discussed due to recent remarkable advances in chemotherapy. The definition of borderline resectable (BR) is most important, where neoadjuvant chemotherapy should be administered. This study aimed to examine a new definition of BR CRLM based on the results of the treatment outcomes.

Primary hepatic chronic expanding hematoma: a case report and literature review.

Chronic expanding hematoma (CEH), first reported in 1968, is a hematoma that gradually enlarges over a long course of time after an initial period of bleeding. It can occur anywhere in the body; however, there are many reports of its occurrence in the thoracic cavity. Primary hepatic CEH is extremely rare.

Early Identification of Patients with Potential Failure of Nonoperative Management for Gastroduodenal Peptic Ulcer Perforation.

Introduction: We aimed to identify objective factors associated with failure of nonoperative management (NOM) of gastroduodenal peptic ulcer perforation (GDUP) and establish a scoring model for early identification of patients in whom NOM of GDUP may fail.

Methods: A total of 71 patients with GDUP were divided into NOM (cases of NOM success) and operation groups (cases requiring emergency operation or conversion from NOM to operation). Using logistic regression analysis, a scoring model was established based on the independent factors.

Preoperative scoring system for prediction of extended resection during emergency surgery for acute appendicitis.

Purpose: Appendicectomy is the primary treatment for acute appendicitis. However, extended resection (ER) may be required in difficult cases. Preoperative prediction of ER may identify challenging cases but remains difficult.

Development of a scoring model based on objective factors to predict gangrenous/perforated appendicitis.

Background: The mortality rate of gangrenous/perforated appendicitis is higher than that of uncomplicated appendicitis. However, non-operative management of such patients is ineffective. This necessitates their careful exam at presentation to identify gangrenous/perforated appendicitis and aid surgical decision-making.

Risk factors for postoperative disseminated intravascular coagulation in surgical patients with non-occlusive mesenteric ischemia.

Purpose: The prognostic impact of disseminated intravascular coagulation (DIC) in surgical patients with non-occlusive mesenteric ischemia (NOMI) is unclear. This study aimed to confirm the association between postoperative DIC and prognosis and to identify preoperative risk factors associated with postoperative DIC.

Methods: This retrospective study included 52 patients who underwent emergency surgery for NOMI between January 2012 and March 2022.

Efficacy of CT Value Along Portal Vein for Preoperative Prediction of Portal Vein Resection in Pancreatic Head Cancer.

Background: It is important for surgeons to determine whether combined portal vein (PV) resection (PVR) is necessary before surgery. The present study aimed to determine the ability of computed tomography (CT) value along the PV in predicting the necessity for concomitant PVR.

Methods: A total of 107 consecutive patients who underwent pancreaticoduodenectomy (PD) for invasive ductal carcinoma of the pancreatic head at our institute between September 2007 and September 2020 were reviewed retrospectively.

Impact of atherosclerosis on the postoperative complications of colorectal surgery in older patients with colorectal cancer.

Background: Atherosclerosis is associated with various comorbidities; nonetheless, its effect on the postoperative complications of colorectal surgery in older patients with colorectal cancer (CRC) remains unclear. This study aimed to evaluate the impact of atherosclerosis on the postoperative complications of colorectal surgery in older adults with CRC.

Methods: Patients aged ≥ 65 years who underwent surgery for CRC between April 2017 and October 2020 were enrolled.

Prediction model for irreversible intestinal ischemia in strangulated bowel obstruction.

Background: Preoperatively diagnosing irreversible intestinal ischemia in patients with strangulated bowel obstruction is difficult. Therefore, this study aimed to establish a prediction model for irreversible intestinal ischemia in strangulated bowel obstruction.

Methods: We included 83 patients who underwent emergency surgery for strangulated bowel obstruction between January 2014 and March 2022.

Prediction Model for Failure of Nonoperative Management of Uncomplicated Appendicitis in Adults.

Background: Prediction of failure of nonoperative management (NOM) in uncomplicated appendicitis (UA) is difficult. This study aimed to establish a new prediction model for NOM failure in UA.

Methods: We included 141 adults with UA who received NOM as initial treatment.

New risk factors of postoperative complications in elective gastrointestinal surgery of elderly patients: a prospective cohort study.

Background: Gastrointestinal surgery in elderly individuals presents unexpected postoperative complications. However, predicting postoperative complications in elderly patients undergoing gastrointestinal surgeries is challenging because of the lack of a reliable preoperative evaluation system. We aimed to prospectively evaluate three new preoperative assessment methods to predict the postoperative complications in elderly patients undergoing elective gastrointestinal surgery.

[A Case of CR Achieved by Chemotherapy for Distant Metastatic Lymph Nodes after Surgery for HER2 Positive Early Gastric Cancer].

The patient was a 72-year-old man who exhibited an abnormal shadow in the stomach in a series of medical check-ups of the upper gastrointestinal in August 20XX. It was diagnosed as gastric cancer(type 1)of the greater curvature of the MU region. Total gastrectomy, D2-11p dissection, and Roux-en-Y reconstruction were performed in October 20XX.

[A Case of Remarkably Effective Chemoradiotherapy for Esophageal Cancer with Multiple Bone Metastasis].

The patient was a 56-year-oldwoman. She presentedto a nearby doctor with a chief complaint of dysphagia andwas diagnosed with esophageal cancer by upper gastrointestinal endoscopy, resulting in a referral to our hospital. Upper gastrointestinal endoscopy revealeda semicircular type 1 lesion 29 to 32 cm from the incisors, andshe was diagnosedwith squamous cell carcinoma by biopsy.

Verrucous carcinoma of the esophagus: a case report and literature review.

Background: Verrucous carcinoma is an extremely rare form of cancer in the esophagus.

Case Presentation: A 56-year-old woman presented with dysphagia in 2007. Endoscopic examination revealed an irregular protruding circumferential erosion in the lower thoracic esophagus, but because pathological examination of the biopsy specimen showed no evidence of malignancy, the status of the erosion was followed up by an upper gastrointestinal endoscopic examination every 3 months.

[Efficacy of 89Sr as Pain Relief for Gastric Cancer Bone Metastasis].

We experienced 2 cases in which strontium chloride was used for pain associated with gastric cancer bone metastasis. Case 1 was of a 69-year-old woman. In 2015, she underwent surgery for advanced gastric cancer followed by adjuvant chemotherapy with S-1 for 1 year.

Single-Port Totally Extraperitoneal Preperitoneal Hernia Repair: Procedure, Tips, and Our Experience.

Single-port laparoscopic surgery is gaining increased attention because of its superiority in terms of cosmesis. A 1.5 cm vertical transumbilical incision is used for the single port, which is created by the glove method.

[Efficacy and safety of administration of low-dose unfractionated heparin (LDUH) for the prevention of pulmonary thromboembolism after surgery for lung cancer; the long term outcome].

We evaluated the efficacy and safety of the administration of low-dose unfractionated heparin(LDUH)for the prevention of pulmonary thromboembolism after lung cancer surgery. We operated on 206 patients with primary lung cancer for 8 years;128 males and 78 females, mean age:69.9±8.

Radiation-sensitizing effect of low-concentration docetaxel on human esophageal squamous cell carcinoma cell lines.

Esophageal squamous cell carcinoma (ESCC) is more sensitive to radiation and chemotherapy than other cancers of the digestive system, and combined modality therapy may represent a promising treatment method. The radiation-sensitizing effect of docetaxel on ESCC cell lines was investigated. A colony formation assay was performed in which ESCC cell lines (TE2, TE3) and A431 were exposed to docetaxel (from 1.

Endoscopic pancreatic duct drainage and stenting for acute pancreatitis and pancreatic cyst and abscess.

Background/purpose: Endoscopic drainage of pancreatic pseudocysts using transpapillary and transmural approaches has been reported. In this study, endoscopic nasopancreatic drainage (ENPD) and pancreatic stenting were performed in patients with pseudocyst and abscess associated with acute pancreatitis, and the usefulness and problems of the procedures were investigated.

Methods: After endoscopic retrograde pancreatography was done, ENPD and/or pancreatic stenting were performed in 13 patients with pancreatitis and pseudocyst or abscess that communicated with the main pancreatic duct.