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In patients with chronic mesenteric ischemia, options for revascularization include endovascular angioplasty, stenting and open surgery, with the latter typically favored in patients who have failed or who are not candidates for endovascular intervention. Here we describe a retroperitoneal approach for open surgical revascularization in patients with a hostile abdomen. We present a case series of five patients from our institution. The median age was 72 years, the mean operative time was 143.6 minutes and 90-day mortality rate was 0. This case series demonstrates the technical feasibility, success, and safety of this approach in patients with anatomic factors that would render a traditional open surgical approach for revascularization technically difficult.

A man in his 70s was admitted to an intensive care unit with severe COVID-19 and treated with dexamethasone and tocilizumab. After recovery from COVID-19, he developed Clostridium butyricum bacteraemia and non-occlusive mesenteric ischaemia, with fatal outcome. He had been prescribed C. butyricum MIYAIRI 588 fine granules as probiotics for a month. The genome sequences of the C. butyricum isolate from the blood culture and C. butyricum MIYAIRI 588 fine granules were identical by single nucleotide polymorphism analysis. This is the first case of definitive probiotics-related C. butyricum bacteraemia after treatment of severe COVID-19.

Acute abdominal pathologies can cause electrocardiogram (ECG) changes mimicking an acute coronary syndrome (ACS), resulting in diagnostic uncertainty and delay. We report a 65-year-old male with multiple risk factors for ACS who presented with four hours of progressive epigastric and chest pain that resolved in the emergency department. ECG findings were concerning for new deeply inverted T-waves with normal troponins, raising concerns for Wellens Syndrome. Emergent heart catheterization was negative but abdominal computed tomography angiography showed occlusion of the superior mesenteric vessels. Subsequent exploratory laparotomy revealed a small bowel volvulus with extensive necrosis, resulting in a 430 cm resection.

OBJECTIVE: To explore the value of treatment choice and clinical prognosis for Riolan\'s arch in chronic superior mesenteric artery (SMA) ischaemic disease in vascular surgery.
METHODS: The clinical data of 215 patients with SMA ischaemic disease (41 cases with Riolan\'s arch and 174 cases without) admitted to the Department of Vascular Surgery, Affiliated Drum Tower Hospital, Medical School of Nanjing University (China) from January 2019 to April 2023 were reviewed. Clinical characteristics, imaging findings, treatment, perioperative complications, and patient follow-up data were analysed to observe the impact of Riolan\'s arch on the prognosis of patients with SMA ischaemic disease.
RESULTS: There were significant differences in body mass index (Riolan\'s arch group: 22.82 ± 3.28 vs 24.03 ± 4.26 in non-Riolan\'s arch group, P = 0.049), Takayasu\'s arteritis (4.9% vs 0, respectively, P = 0.036), and secondary intervention (3.3% vs 1.9%, respectively, P < 0.001) between the two groups. Propensity score matching was used to exclude the effect of baseline data on patient outcomes. There were significant differences related to therapy method (conservative treatment, Riolan\'s arch group: 24.1% vs 39.7% in the non-Riolan\'s arch group; operative treatment, Riolan\'s arch group: 51.7% vs 20.7% in the non-Riolan\'s arch group, P = 0.014), as well as in-hospital time (9.79 ± 4.20 vs 6.86 ± 4.32, respectively, P = 0.011). There was no statistically significant difference in Kaplan-Meier curves between the two groups (log-rank test P = 0.476).
CONCLUSIONS: Riolan\'s arch plays an important compensatory role in SMA ischaemic disease, especially in chronic disease. We found significant differences in the treatment methods and length of hospital stay of Riolan\'s arch, which may suggest that Riolan\'s arch has some reference value in the choice of treatment mode.

UNASSIGNED: To evaluate the benefit of unenhanced CT and single energy iodine mapping (SIM) to conventional contrast-enhanced CT for bowel wall enhancement characterization in an acute abdomen setting.
UNASSIGNED: CT images from 45 patients with a suspected acute abdomen who underwent abdominopelvic CT from April 2018 to June 2018 were analyzed retrospectively by two independent radiologists. These patients had been referred by emergency department physicians in a context of acute abdominal pain and had a confirmed etiological diagnosis. Three image sets were evaluated separately (portal phase images alone; portal phase images and unenhanced images, portal phase images, and single energy iodine maps). Diagnostic accuracy and confidence were assessed. Quantitative analysis of bowel wall enhancement was also performed.
UNASSIGNED: The number of correct diagnoses increased by 8% and 12% with unenhanced images and 6% and 13% with SIM for readers 1 and 2, respectively, compared to the portal phase only. There was an improvement in the confidence of the etiological diagnosis with the number of certain diagnoses increasing from 23% to 100%, which was statistically significant for reader 2 and of borderline significance for reader 1 (P = 0.002 and 0.052, respectively) when unenhanced phase and SIM were added. The inter-rater agreement improved when unenhanced and portal phase images were associated, compared to portal phase images alone (kappa = 0.652 [ICC=0.482-0.822] and 0.42 [ICC=0.241-0.607] respectively).
UNASSIGNED: SIM and unenhanced images improve the reproducibility and the diagnostic confidence to diagnose ischemic and inflammatory/infectious bowel wall thickening compared to portal phase images alone.
UNASSIGNED: The analysis of unenhanced and SIM images in association with portal phase images improves the reproducibility and the radiologist\'s confidence in the etiological diagnosis of acute non-traumatic bowel wall thickening in adults.

UNASSIGNED: Vascular intestinal disorder (VID) is a condition with a low incidence, but a high mortality risk. The increasing prevalence of substance abuse and metabolic syndrome among young individuals could impact the burden of VID. This study aimed to evaluate the impact of VID on young individuals.
UNASSIGNED: Our study harnessed data from the Global Burden of Disease study, spanning 2000 to 2019. With this extensive dataset, we conducted a comprehensive analysis of the prevalence, mortality rates, and impact on disability-adjusted life years (DALYs) related to VID among young individuals aged 15 to 49 years.
UNASSIGNED: Globally, there were an estimated 32,628 cases, 3869 deaths, and 201,099 million DALYs attributed to VID in young individuals. Geographically, the regions of America had the highest burden of VID in young individuals. From 2000-2019, there was an increasing prevalence in all areas, with the most pronounced change observed in Southeast Asia (annual percentage change [APC] +2.17%, P<0.001). Over the study period, there was a more rapid increase in prevalence in males (APC +0.82%, P<0.001) than in females (APC +0.59%, P<0.001). Rates of death and DALYs declined in most regions, except for the Eastern Mediterranean region, where there was a slight increase (APC +0.85%, P<0.001 and 0.88%, P<0.001, respectively).
UNASSIGNED: Over the past decade, the burden of VID in young individuals has been increasing, particularly in Southeast Asia and the Eastern Mediterranean region, necessitating immediate and inclusive measures to tackle the rising burden.

BACKGROUND: Although several clinical guidelines recommend vasodilator therapy for non-occlusive mesenteric ischemia (NOMI) and immediate surgery when bowel necrosis is suspected, these recommendations are based on limited evidence.
METHODS: In this retrospective nationwide observational study, we used information from the Japanese Diagnosis Procedure Combination inpatient database from July 2010 to March 2018 to identify patients with NOMI who underwent abdominal surgeries on the day of admission. We compared patients who received postoperative vasodilator therapy (vasodilator group) with those who did not (control group). Vasodilator therapy was defined as venous and/or arterial administration of papaverine and/or prostaglandin E1 within 2 days of admission. The primary outcome was in-hospital mortality. Secondary outcomes included the prevalence of additional abdominal surgery performed ≥3 days after admission and short bowel syndrome.
RESULTS: We identified 928 eligible patients (149 in the vasodilator group and 779 in the control group). One-to-four propensity score matching yielded 149 and 596 patients for the vasodilator and control groups, respectively. There was no significant difference in in-hospital mortality between the groups (control vs. vasodilator, 27.5% vs. 30.9%; risk difference, 3.4%; 95% confidence interval, -4.9 to 11.6; p=0.42) and no significant difference in the prevalences of abdominal surgery, bowel resection ≥3 days after admission, and short bowel syndrome.
CONCLUSIONS: Postoperative vasodilator use was not significantly associated with a reduction in in-hospital mortality or additional abdominal surgery performed ≥3 days after admission in surgically treated NOMI patients.

BACKGROUND: This study aimed to develop and validate an artificial intelligence model using machine learning (ML) to predict hospital mortality in patients with acute mesenteric ischemia (AMI).
METHODS: A total of 122 patients diagnosed with AMI at Sakarya University Training and Research Hospital between January 2011 and June 2023 were included in the study. These patients were divided into a training cohort (n=97) and a validation cohort (n=25), and further categorized as survivors and non-survivors during hospitalization. Serum-based laboratory results served as features. Hyperfeatures were eliminated using Recursive Feature Elimination (RFE) in Python to optimize outcomes. ML algorithms and data analyses were performed using Python (version 3.7).
RESULTS: Of the patients, 56.5% were male (n=69) and 43.5% were female (n=53). The mean age was 71.9 years (range 39-94 years). The mortality rate during hospitalization was 50% (n=61). To achieve optimal results, the model incorporated features such as age, red cell distribution width (RDW), C-reactive protein (CRP), D-dimer, lactate, globulin, and creatinine. Success rates in test data were as follows: logistic regression (LG), 80%; random forest (RF), 60%; k-nearest neighbor (KN), 52%; multilayer perceptron (MLP), 72%; and support vector classifier (SVC), 84%. A voting classifier (VC), aggregating votes from all models, achieved an 84% success rate. Among the models, SVC (sensitivity 1.0, specificity 0.77, area under the curve (AUC) 0.90, Confidence Interval (95%): (0.83-0.84)) and VC (sensitivity 1.0, specificity 0.77, AUC 0.88, Confidence Interval (95%): (0.83-0.84)) were noted for their effectiveness.
CONCLUSIONS: Independent risk factors for mortality were identified in patients with AMI. An efficient and rapid method using various ML models to predict mortality has been developed.

The case describes a rare instance of Quain hernia, a specific type of internal hernia where the bowel protrudes through a defect in the broad ligament. Broad ligament defects can either be congenital or acquired. Quain hernias are uncommon and difficult to diagnose due to nonspecific symptoms. We report a case of a Quain hernia initially diagnosed as mesenteric ischemia with small bowel gangrene. If a Quain hernia is suspected, immediate diagnostic laparoscopy is recommended, as it is an effective diagnostic tool and definitive management method, regardless of the specific type. During the laparoscopic procedure, it is crucial to thoroughly assess the contralateral broad ligament to identify any defects, which should be repaired prophylactically if found. Understanding their rare presentation and distinctive radiological features is vital for prompt diagnosis and appropriate management, highlighting the need to consider uncommon etiologies in acute abdominal cases to optimize patient outcomes.