Neuroendocrine tumors (NETs) are rare, slow-growing tumors originating from the diffuse neuroendocrine cell system, predominantly affecting the digestive tract. Small bowel neuroendocrine tumors (SBNETs) may present with nonspecific symptoms, such as abdominal pain, or with intermittent intestinal obstruction. This case outlines the diagnostic journey of a septuagenarian male with prolonged abdominal symptoms and weight loss. Despite extensive investigation, a definitive cause remained elusive. Recurrent partial intestinal obstruction led to surgical exploration and segmental resection. Pathology confirmed a NET. The case underscores the importance of considering intestinal neoplasia in older patients with recurrent partial small bowel obstruction.

Spontaneous haemoperitoneum is described as a collection of blood in the peritoneal cavity due to non-traumatic aetiology. Common causes in the literature include splenic, hepatic and gynaecological pathology. Patients with spontaneous haemoperitoneum usually present with non-specific dull aching abdominal pain. Spontaneous haemoperitoneum can only be radiologically diagnosed and, if not treated in time, is life threatening. Rupture of a gastrointestinal stromal tumour (GIST) presenting as a spontaneous haemoperitoneum is a rare event. Gastric GIST presents as ambiguous abdominal pain, complications of which include melena, obstruction and rupture. This is a report of a male patient in his early 60s who presented with acute abdominal pain. A contrast-enhanced CT of the abdomen showed haemoperitoneum with an unknown source of origin. Diagnostic laparoscopy showed a bleeding exophytic mass arising from the stomach, which was resected. Thus, early diagnosis with proper imaging and prompt treatment has a favourable outcome.

OBJECTIVE: Prognostic scores require fluctuating values, such as respiratory rate, which are unsuitable for retrospective auditing. Therefore, this study aimed to develop and validate a predictive model for in-hospital mortality associated with gastrointestinal surgery for retrospective auditing.
METHODS: Data from patients with bacteremia related to gastrointestinal surgery performed at Shizuoka General Hospital between July 2006 and December 2021 were extracted from a prospectively maintained database. Patients suspected of having a positive blood culture with contaminating bacteria or missing laboratory data were excluded. The remaining patients were randomly assigned in a 2:1 ratio to the deviation and validation cohorts. A logistic regression model estimated the odds ratios (ORs) and created a predictive model for in-hospital mortality. The model was evaluated using receiver operating characteristic (ROC) curves and calibration plots.
RESULTS: Of 20,637 gastrointestinal surgeries, 398 resulted in bacteremia. The median age of patients with bacteremia was 72 years, and 66.1% were male. The most common pathogens were Staphylococcus (13.9%), followed by Bacteroides (12.4%) and Escherichia (11.4%). Multivariable logistic regression showed that creatinine abnormality (P < 0.001, OR = 3.39), decreased prognostic nutritional index (P < 0.001, OR = 0.90/unit), and age ≥ 75 years (P = 0.026, OR = 2.89) were independent prognostic factors for in-hospital mortality. The area under the ROC curve of the predictive model was 0.711 in the validation cohort. The calibration plot revealed that the model slightly overestimated mortality in the validation cohort.
CONCLUSIONS: Using age, creatinine level, albumin level, and lymphocyte count, the model accurately predicted in-hospital mortality after bacteremia infection related to gastrointestinal surgery, demonstrating its suitability for retrospective audits.

Presentation of congenital diaphragmatic hernia in adulthood is rare. Further, most cases are attributable to Bochdalek and Morgagni hernias with central tendon hernias being particularly uncommon. We report a case of central congenital diaphragmatic hernia in an adult presenting as large intestinal obstruction and respiratory failure. Open repair of the hernia was performed, which brought about the resolution of the patient\'s symptoms. This case report highlights the possibility for congenital diaphragmatic hernia to present in adulthood and the importance of early diagnosis and treatment in these situations.

Peritoneal involvement represents one of the major difficulties that arise during the treatment of pancreatic adenocarcinoma. In fact, currently, there is a growing interest in the administration of intraoperative hyperthermic intraperitoneal chemotherapy (HIPEC) as an adjunct to surgical pancreatic resection, both with prophylactic or therapeutic intent. With this video, we report a case of pancreatic body adenocarcinoma treated with fully laparoscopic distal splenic pancreatectomy with intraoperative HIPEC with gemcitabine, administered initially with a prophylactic intent, based on a preliminary negative peritoneal washing cytology result. In our case, the association of HIPEC and surgical resection did not affect the postoperative recovery, and after 15 months of follow-up, the patient remains alive and has no signs of disease recurrence.

OBJECTIVE: The purpose of this randomized controlled trial was to evaluate whether early urinary catheter removal is feasible during epidural anesthesia during gastrointestinal surgery in male patients at high risk for urinary retention.
METHODS: Male patients who underwent radical surgery for gastric or colon cancer were enrolled in this randomized controlled trial. Patients were randomized 1:1 into 2 groups: the early group, in which the urinary catheter was removed before removal of the epidural catheter on the second or third postoperative day, and the late group, in which the urinary catheter was removed after removal of the epidural catheter. The randomization adjustment factors were age (≥ 65 or < 65 years) and operative site (gastric or colon). The primary endpoint was urinary retention. The secondary endpoints were the incidence of urinary tract infection and length of postoperative hospital stay.
RESULTS: Seventy-three patients were enrolled between March 2020 and February 2024 and assigned to the Early (n = 37) and Late (n = 36) groups. Four patients withdrew their consent after randomization. The intention-to-treat analysis showed that urinary retention occurred in 4 patients (11.1%) in the early group and 1 patient (3.0%) in the late group (P = 0.20). Urinary tract infection occurred in 1 patient (3.0%) in the late group. The median postoperative hospital stay was 9 days in both groups.
CONCLUSIONS: Early urinary catheter removal in male patients undergoing gastrointestinal surgery with epidural anesthesia could increase urinary retention within the expected acceptable range.
BACKGROUND: UMIN000040468, Date of registration: May 21, 2020.

UNASSIGNED: Surgical site infection (SSI), albeit infrequent, drastically impacts the quality of care. This article endeavors to investigate the predictive factors of SSIs following surgical interventions that involve the gastrointestinal (GI) tract within a single institution in a resource-limited setting.
UNASSIGNED: Over seven years from June 2015 to June 2022, patients who underwent GI surgery and developed SSI were retrospectively matched with an unaffected case-control cohort of patients. Standardized techniques for wound culture, laboratory evaluation of bacterial isolates, and antibiotic susceptibility tests were employed. Logistic regression analysis was utilized to investigate the predictive factors associated with 30-day postoperative SSI occurrence.
UNASSIGNED: A total of 525 patients who underwent GI surgical procedures were included, among whom, 86 (16.4%) developed SSI and the majority of SSIs were superficial (74.4%). Escherichia coli was the most commonly isolated bacterium (54.4%), and a high percentage of multidrug-resistant organisms were observed (63.8%). In multivariate Cox regression analysis, illiteracy (Odds ratio [OR]:40.31; 95% confidence interval [CI]: 9.54-170.26), smoking (OR: 21.15; 95% CI: 4.63-96.67), diabetes (OR: 5.07; 95% CI: 2.27-11.35), leukocytosis (OR: 2.62; 95% CI: 1.24-5.53), hypoalbuminemia (OR: 3.70; 95% CI: 1.35-10.16), contaminated and dirty wounds (OR: 6.51; 95% CI:1.62-26.09), longer operation duration (OR: 1.02; 95% CI: 1.01-1.03), emergency operations (OR: 12.58; 95% CI: 2.91-54.30), and extending antibiotic prophylaxis duration (OR: 3.01; 95% CI: 1.28-7.10) were the independent risk factors for SSI (all p < 0.05).
UNASSIGNED: This study highlights significant predictors of SSI, including illiteracy, smoking, diabetes, leukocytosis, hypoalbuminemia, contaminated and dirty wounds, longer operative time, emergency operations, and extending antibiotic prophylaxis duration. Identifying these risk factors can help surgeons adopt appropriate measures to reduce postoperative SSI and improve the quality of surgical care, especially in a resource-limited setting with no obvious and strict policy for reducing SSI.

We present a case of haemobilia as a primary presentation for underlying cholangiocarcinoma. A man in his 50s initially presented to emergency with Quincke\'s triad, RUQ pain, jaundice and UGI bleeding. The initial diagnosis of haemobilia was made on endoscopic retrograde cholangiopancreatography (ERCP) on primary presentation, but the presence of blood and the recurrent clot obstruction of the biliary tract made the underlying diagnosis extremely difficult, resulting in the patient having 4 ERCP, 1 spyglass and multiple CTs and magnetic resonance cholangiopancreatography. Eventually, the patient underwent a Whipple\'s procedure without tissue diagnosis, confirming cholangiocarcinoma on histopathology. This case emphasises the difficulty of diagnosis of underlying malignancy in the setting of haemobilia, the benefit of multidisciplinary meeting discussions to support significant interventions and the need to be cautious and curious when managing atypical presentations.

Intussusception is rare in adults, making it a challenging and often delayed diagnosis. Patients may re-present with non-specific and subacute abdominal symptoms. Abdominal CT is the most sensitive imaging modality and is often required to make the diagnosis of intussusception. In contrast to the paediatric population, intussusception in adults is most often associated with a pathological lesion acting as a lead point. In adults, the lead point is often secondary to malignancy, though benign lesions can also be implicated. As such, surgical management with selective resection is the mainstay of treatment in adults. We describe a rare case of ileocaecal intussusception in an adult secondary to a large ileocaecal lipoma, successfully treated with laparotomy and resection in a remote Western Australian hospital. The increasing availability of CT imaging and skilled general surgeons in rural and remote Australia allows for the diagnosis and surgical management of such cases without inter-hospital transfer.

Xanthogranulomatous cholecystitis is a rare chronic inflammatory disease of the gallbladder associated with complications such as perforation, dense adhesions and fistulation. We present a case of a female patient in her 20s who presented with three episodes of recurrent cholecystitis over 3 months. Her medical history included an endoscopic retrograde cholangiopancreatography for obstructive jaundice due to choledocholithiasis. As there was no possibility of performing an urgent cholecystectomy during her initial admission, she was listed for an elective operation. Laparoscopic inspection revealed a pericholecystic mass involving the omentum, transverse colon, duodenum and liver and findings suspicious of a cholecystoappendiceal fistula. Laparoscopic cholecystectomy and appendicectomy were performed. Early index admission laparoscopic cholecystectomy should be performed in patients with acute cholecystitis to prevent higher grades of operative difficulty and associated complications. This case presentation-cholecystoappendiceal fistula associated with xanthogranulomatous cholecystitis-emphasises the necessity of complying with national guidelines in managing acute calculous cholecystitis.