Sigmoid volvulus-Can CT features predict outcomes and recurrence?

OBJECTIVES: Sigmoid volvulus (SV) is a common cause of bowel obstruction, especially in older patients. SV can be mesenteroaxial (M-SV) or organoaxial (O-SV). The purpose of this study was to assess if CT findings in SV are associated with clinical outcomes. including recurrence, choice of management, and mortality. MATERIALS AND METHODS: This study includes patients with SV and a CT within 24 hours of presentation. CT features, including mesenteraoxial/organoaxial arrangement, direction of rotation, transition points, distension, whirl-sign, ischemia, and perforation were determined. Demographics, treatment, recurrence, and outcome data were recorded. RESULTS: One hundred and seventeen cases were diagnosed in 80 patients (54 male). The mean age was 70 years (± 17.1). M-SV and O-SV were equally prevalent (n = 39 vs. n = 41, respectively). M-SV was significantly more common with anticlockwise rotation in the axial plane (p = 0.028) and clockwise rotation in the coronal plane (p = 0.015). All patients with imaging features of ischemia underwent surgery (n = 6). There was no significant difference in outcome variables (30-day mortality, 30-day readmission, recurrence) between the O-SV and M-SV groups. The degree of bowel distension on initial presentation was a significant predictor of recurrence, with ≥ 9 cm vs < 9 cm associated with an increased odds of any recurrence (OR: 3.23; 95%CI: 1.39-7.92). CONCLUSION: In SV, sigmoid distension of more than 9 cm at baseline CT was associated with an increased risk of recurrence. Imaging features of ischemia predicted surgical over endoscopic intervention. Organoaxial and mesenteroaxial SV had similar prevalence, but the type of volvulus was not associated with clinical outcomes or choice of management. CLINICAL RELEVANCE STATEMENT: There is a risk of recurrent sigmoid volvulus with colonic distension greater than 9 cm. This work, comparing volvulus subtypes, shows that this finding at the initial presentation could expedite consideration for surgical management. KEY POINTS: Reports of outcomes for different subtypes and rotational directions of volvuli have been contradictory. No difference in measured outcomes was found between subtypes; distension ≥ 9 cm predicted recurrence. CT features can aide management of sigmoid volvulus and can prompt surgical intervention.

To Resect or Not to Resect: A Nationwide Comparison of Management of Sigmoid Volvulus.

INTRODUCTION: Despite the high recurrence rate of sigmoid volvulus, there is reluctance to perform a prophylactic colectomy in frail patients due to the operation's perceived risks. We used a nationally representative database to compare risk of recurrence in patients undergoing a prophylactic colectomy versus endoscopic detorsion alone. METHODS: We performed a retrospective cohort study using the National Readmission Database (2016-2019) including patients aged ≥18 y who had an emergent admission for sigmoid volvulus and underwent endoscopic detorsion on the day of admission. We performed a 1:1 propensity matching adjusting for patient demographics, frailty score comprising of 109 components, and hospital characteristics. Our primary outcome was readmission due to colonic volvulus and secondary outcomes included mortality, complications, length of stay (LOS), and costs during index admission and readmission. We performed a subgroup analysis in patients with Hospital Frailty Score >5. RESULTS: We included 2113 patients of which 1046 patients (49.5%) underwent a colectomy during the initial admission. In the matched population of 830 pairs, readmission due to colonic volvulus was significantly lower in patients undergoing endoscopy followed by colectomy than endoscopy alone. Patients undergoing a colectomy had higher gastric and renal complications, longer LOS, and higher costs but no difference in mortality. In the subgroup analysis of frail patients, readmission was significantly lower in patients with prophylactic colectomy with no significant difference in mortality in 439 matched patients. CONCLUSIONS: Prophylactic colectomy was associated with lower readmission, a higher rate of complications, increased LOS, and higher costs compared to sigmoid decompression alone.

Development and validation of multivariable predictive models for recurrence and mortality following nonoperative management of sigmoid volvulus.

AIM: Sigmoid volvulus is a challenging condition, and deciding between elective surgery or expectant management can be complex. The aim of this study was to develop a tool for predicting the risk of recurrent sigmoid volvulus and all-cause mortality within 1 year following initial nonoperative management. METHOD: This is a retrospective cohort study using Medicare claims data from 2016 to 2018 of beneficiaries admitted urgently/emergently for volvulus, undergoing colonic decompression and discharged alive without surgery (excluding those discharged to hospice). The primary outcomes were recurrent sigmoid volvulus and all-cause mortality within 1 year. Proportional hazards models and logistic regression were employed to identify risk factors and develop prediction equations, which were subsequently validated. RESULTS: Among the 2078 patients managed nonoperatively, 36.1% experienced recurrent sigmoid volvulus and 28.6% died within 1 year. The prediction model for recurrence integrated age, sex, race, palliative care consultations and four comorbidities, achieving area under the curve values of 0.63 in both the training and testing samples. The model for mortality incorporated age, palliative care consultations and nine comorbidities, with area under the curve values of 0.76 in the training and 0.70 in the testing sample. CONCLUSION: This study provides a straightforward predictive tool that utilizes easily accessible data to estimate individualized risks of recurrent sigmoid volvulus and all-cause mortality for older adults initially managed nonoperatively. The tool can assist clinicians and patients in making informed decisions about such risks. While the accuracy of the calculator was validated, further confirmation through external validation and prospective studies would enhance its clinical utility.

Epidemiology and age-related trends in surgical outcomes for sigmoid volvulus: a 17-year analysis.

BACKGROUND: Sigmoid volvulus, a gastrointestinal disorder characterized by twisted bowel, often requires medical intervention, either through endoscopic or surgical means, to avoid potentially severe outcomes. This study examined the challenges elderly patients face in undergoing surgical treatment, encompassing both mortality and morbidity. Furthermore, it aimed to determine how medical practices and outcomes have changed over a period of 17 years. METHODS: We utilized data from the National Surgical Quality Improvement Project, which covers the period from 2005 to 2021, to identify patients who underwent left hemicolectomy for colonic volvulus. The patients were categorized into three age groups: < 60 years, 60-75 years, and > 75 years. We performed a meticulous logistic regression analysis, carefully adjusted for risk factors, to compare mortality, morbidity, and types of surgical treatment administered among the different age groups. RESULTS: Our study included 6775 patients. The breakdown of the patient population was as follows: 2067 patients were < 60 years of age, 2239 were between 60 and 75 years of age, and 2469 were > 75 years of age. The elderly cohort, those aged above 75 years, were predominantly male, had lower BMIs, underwent fewer laparoscopic surgeries, required more diverting stomas and end-ostomies, and had longer hospital stays. Notably, the elderly population faced a mortality risk that was 5.67 times (95% CI 3.64, 9.20) greater than that of their youngest counterparts, with this risk increasing by 10% (95% CI 1.06, 1.14) for each additional year of age. Furthermore, the odds of mortality associated with emergency surgery were 1.63 times (95% CI 1.21, 2.22) higher than those associated with elective surgery. The postoperative morbidity odds were also elevated for emergency surgeries, 1.30 times (95% CI 1.08, 1.58) greater than that for elective cases. Over the 17-year period, we observed a decline in mortality rates, an increase in the utilization of laparoscopic procedures, and overall stability of morbidity rates. CONCLUSION: Our findings highlight the increased vulnerability of patients over 75 years of age, who are not only at an elevated risk of mortality compared to their younger counterparts, but also a continuously increasing risk with age. By focusing on elective surgeries for younger patients and minimizing emergency surgeries for the elderly, it may be possible to reduce the mortality risk associated with surgical interventions in this population.

High risk and low incidence diseases: Pediatric digestive volvulus.

INTRODUCTION: Pediatric digestive volvulus is a serious condition that carries with it a high rate of morbidity and mortality. OBJECTIVE: This review highlights the pearls and pitfalls of pediatric digestive volvulus, including the presentation, diagnosis, and management in the emergency department (ED) based on current evidence. DISCUSSION: Pediatric digestive volvulus is a deadly condition most commonly associated with malrotation. It occurs when the stomach or small intestine twists on itself, resulting in ischemia and potentially strangulation with necrosis and perforation. Presentation differs based on the gastrointestinal (GI) segment affected, degree of twisting, and acuity of the volvulus. Gastric volvulus most commonly presents with retching with or without nonbilious emesis and epigastric distension with pain, while midgut volvulus typically presents with bilious emesis in infants. Patients with GI necrosis and perforation may present with hemodynamic compromise and peritonitis. If suspected, emergent consultation with the pediatric surgery specialist is necessary, and if this is not available, transfer to a center with a pediatric surgeon is recommended. Imaging includes plain radiography, ultrasound, or upper GI series, while treatment includes resuscitation, administration of antibiotics, and emergent surgical decompression and detorsion of the involved segments. CONCLUSION: An understanding of pediatric digestive volvulus and its many potential mimics can assist emergency clinicians in diagnosing and managing this deadly disease.

An acute gastric volvulus in a child with congenital left diaphragmatic hernia: a case report.

BACKGROUND: Acute complete gastric volvulus is a rare and life-threatening disease, which is prone to gastric wall ischemia, perforation, and necrosis. If it is not treated by surgery in time, the mortality rate can range from 30 to 50%. Clinical presentations of acute gastric volvulus are atypical and often mimic other abdominal conditions such as gastritis, gastroesophageal reflux, gastric dilation, and pancreatitis. Imaging studies are crucial for diagnosis, with barium meal fluoroscopy being the primary modality for diagnosing gastric volvulus. Cases of acute gastric volvulus diagnosed by ultrasound are rarely reported. CASE PRESENTATION: We reported a rare case of acute gastric volvulus in a 4-year-old Chinese girl who presented with vomiting and abdominal pain. Ultrasound examination revealed the "whirlpool sign" in the cardia region, raising suspicion of gastric volvulus. Diagnosis was confirmed by X-ray barium meal fluoroscopy, which indicated left-sided diaphragmatic hernia and obstruction at the cardia region. Surgical intervention confirmed our suspicion of acute complete gastric volvulus combined with diaphragmatic hernia. CONCLUSION: In this case, we reported an instance of acute complete gastric volvulus. Ultrasound revealed a "whirlpool sign" in the cardia, which is likely to be a key sign for the diagnosis of complete gastric volvulus.

No safe time window in malrotation and volvulus: A consecutive cohort study.

BACKGROUND: Malrotation and volvulus classically present with bilious vomiting. It is more common earlier in life, but there are other causes of bile-stained vomiting. This leads some clinicians to 'watch and wait'. In the presence of a volvulus, this is potentially a fatal decision. It is not clear from the literature if there is a safe time window in which children can be observed in the hope of avoiding transfers or radiological investigations. AIM: To determine whether time to identification and management of midgut volvulus correlated with morbidity and mortality; and whether there were patterns to transition of care. METHODS: Multicentre, retrospective review of all children with malrotation ± volvulus at two tertiary children's hospitals in Brisbane from 2000 to 2012. Data collected included age at presentation, timing between symptom onset and presentation, radiological findings, and definitive surgical management. Outcomes included patient length of stay (LOS), total parenteral nutrition (TPN) duration, re-operations and death. RESULTS: There were 96 cases of malrotation identified, with 23 excluded (elective operation, insufficient data). Neonates made up 66% of included cases. Only 14% of cases were over 12 months old. Bilious vomiting or bile-stained aspirates were the presenting symptoms in 71% (52). Overall mortality was 5.56%. Time from symptom onset to presentation or management was not significantly associated with morbidity or mortality. More than half (53%, 39/73) of patients received total parenteral nutrition; 20/39 for more than 10 days. Neonates and infants had a significantly higher rate of TPN compared with older children (P < 0.001). Those requiring TPN post-operatively had a significantly higher mortality compared with those who did not (P = 0.02). Time from symptom onset to presentation or definitive management was not significantly associated with LOS, TPN duration, or need for re-operation. CONCLUSION: Malrotation remains a time-critical diagnosis to secure and treat. Even a short duration of symptoms can be associated with high morbidity or mortality. There is no place for 'watch and wait' for such patients, and malrotation/volvulus should be emergently actively excluded with contrast studies.

Clinical management of intestinal malrotation in different age groups.

PURPOSE: Intestinal malrotation, characterized by abnormal intestinal positioning, can lead to severe complications like volvulus and internal hernias, especially in neonates and children. Our aim was to evaluate the diagnostic methods, treatment results and postoperative follow-up of pediatric patients treated for intestinal malrotation. METHODS: This retrospective study reviewed medical records of pediatric patients who underwent surgery for intestinal malrotation between January 2013 and January 2022. Data on demographics, symptoms, diagnostic approaches, surgical interventions, and postoperative outcomes were analyzed. RESULTS: The study included 45 patients, with a male predominance (68.8%). Ages ranged from 1 day to 15 years, averaging 1.54 years. Presenting symptoms were acute abdomen (n = 21) and chronic abdominal pain with vomiting (n = 24). Diagnoses were established via physical exams and imaging, including upper gastrointestinal contrast studies and abdominal ultrasonography. All patients received the Ladd procedure, with some requiring necrotic bowel resection due to volvulus. CONCLUSION: The diagnosis and management of pediatric intestinal malrotation present significant challenges due to its variable symptoms and potential for life-threatening complications. Early and accurate diagnosis, followed by appropriate surgical management, is crucial. This study emphasizes the importance of diligent postoperative follow-up to identify and mitigate complications, particularly in younger and severely affected patients.

The performance of ultrasound and upper gastrointestinal study in diagnosing malrotation in children, with or without volvulus.

BACKGROUND: Rapid diagnosis is crucial for pediatric patients with midgut volvulus and malrotation to prevent serious complications. While the upper gastrointestinal study (UGIS) is the traditional method, the use of ultrasound (US) is gaining prominence. OBJECTIVES: To assess the diagnostic sensitivity and specificity of US compared to UGIS for malrotation and midgut volvulus. METHODS: A cross-sectional study was performed on 68 pediatric patients who underwent US and/or UGIS before surgery for suspected midgut volvulus or malrotation in Kuala Lumpur (PPUKM and HTA), referencing surgical outcomes as the gold standard. RESULTS: US demonstrated a higher specificity (100%) than UGIS (83%) for diagnosing malrotation, with a slightly lower sensitivity (97% vs. 100%). For midgut volvulus, US surpassed UGIS in sensitivity (92.9% vs. 66.7%) while maintaining comparable specificity. The SMA/SMV criteria showed better sensitivity (91.1%) than the D3 assessment (78.9%) on US, though both had high specificity. CONCLUSION: US is equivalent to UGIS for identifying malrotation and is more sensitive for detecting midgut volvulus, supporting its use as a primary diagnostic tool. The study advocates for combined US and UGIS when either yields inconclusive results, optimizing diagnostic precision for these conditions.

The Dual Role of Neutrophil Extracellular Traps (NETs) in Sepsis and Ischemia-Reperfusion Injury: Comparative Analysis across Murine Models.

A better understanding of the function of neutrophil extracellular traps (NETs) may facilitate the development of interventions for sepsis. The study aims to investigate the formation and degradation of NETs in three murine sepsis models and to analyze the production of reactive oxygen species (ROS) during NET formation. Murine sepsis was induced by midgut volvulus (720° for 15 min), cecal ligation and puncture (CLP), or the application of lipopolysaccharide (LPS) (10 mg/kg body weight i.p.). NET formation and degradation was modulated using mice that were genetically deficient for peptidyl arginine deiminase-4 (PAD4-KO) or DNase1 and 1L3 (DNase1/1L3-DKO). After 48 h, mice were killed. Plasma levels of circulating free DNA (cfDNA) and neutrophil elastase (NE) were quantified to assess NET formation and degradation. Plasma deoxyribonuclease1 (DNase1) protein levels, as well as tissue malondialdehyde (MDA) activity and glutathione peroxidase (GPx) activity, were quantified. DNase1 and DNase1L3 in liver, intestine, spleen, and lung tissues were assessed. The applied sepsis models resulted in a simultaneous increase in NET formation and oxidative stress. NET formation and survival differed in the three models. In contrast to LPS and Volvulus, CLP-induced sepsis showed a decreased and increased 48 h survival in PAD4-KO and DNase1/1L3-DKO mice, when compared to WT mice, respectively. PAD4-KO mice showed decreased formation of NETs and ROS, while DNase1/1L3-DKO mice with impaired NET degradation accumulated ROS and chronicled the septic state. The findings indicate a dual role for NET formation and degradation in sepsis and ischemia-reperfusion (I/R) injury: NETs seem to exhibit a protective capacity in certain sepsis paradigms (CLP model), whereas, collectively, they seem to contribute adversely to scenarios where sepsis is combined with ischemia-reperfusion (volvulus).

Gallbladder torsion: a rare cause of acute abdomen in a 12-month old child.

Background: Gallbladder torsion is a rare cause of an acute abdomen, predominantly occurring in elderly women and less frequently diagnosed in the pediatric population. The diagnosis is difficult and rarely made preoperatively. However, suspicion needs to be raised in children with acute onset of abdominal pain. Ultrasound can demonstrate different signs putting forward the diagnosis but findings are often non-specific, therefore clinical suspicion should prompt a laparoscopic exploration.Case presentation: We report a case of a 12-month old girl consulting with progressive abdominal discomfort and vomiting. Ultrasound revealed an enlarged gallbladder with thickening of the wall but without demonstrable color Doppler flow and a more horizontal orientation outside its normal anatomic fossa. Gallbladder torsion was suspected. Emergency laparoscopic exploration confirmed the diagnosis and a laparoscopic cholecystectomy was performed. The postoperative course was uneventful.Conclusions: Gallbladder torsion, although rare, should be included in the differential diagnosis of an acute abdomen in children. Early recognition is necessary for a favorable outcome. The diagnosis might be supported by ultrasound but remains difficult, which is why laparoscopic exploration should be considered when the diagnosis remains unclear.

Multiplex attacks in sigmoid volvulus.

Objectives: Sigmoid volvulus (SV) recurs in about one quarter of the patients, whereas multiplex (≥3) attacks are quite rare and attacks with five or more times are extremely rare. The aim of this study was to evaluate multiplex SV attacks in our series and worldwide data. Methods: In Ataturk University Faculty of Medicine Department of General Surgery, among 1,071-case SV series, data were evaluated retrospectively in 612 patients, while prospectively in 459 with respect to age, gender, previous volvulus attacks, and prognosis. Worldwide data were obtained from Web of Science database and they were compared with our results. Results: Mean SV attack count, multiple- (≥2) and multiplex- (≥3) attack rates were 1.4, 26.1%, and 4.2%, respectively, in our series, while they were 1.7, 26.7%, and 3.2%, respectively, in worldwide data (p>0.05, in all). In our series, recurrence rates were 26.1%, 19.3%, and 51.2%, respectively, (p<0.001, in all), while mortality rates were 7.3%, 13.7%, and 19.5%, respectively, (p<0.001, in all) in single-, double-, and multiplex- (≥3) attack patients. Conclusion: Although multiplex (≥3) attacks are uncommon in SV, when it goes up, elective surgery must be considered in selected cases to avoid repetitive attacks and related high mortality.

Cecal volvulus - a rare cause of acute abdomen with ileus.

In this article, we present case reports of two patients admitted to the University Hospital in Pilsen for acute abdomen due to a disorder of the passage through the gastrointestinal tract (GIT). Both were indicated for surgery. The patients were diagnosed intraoperatively with rarely occurring cecal volvulus (CV). The findings required an ileocecal resection; nevertheless, both patients fully recovered despite the need the resection.

Fatal gastrointestinal complications in Pitt-Hopkins syndrome.

Pitt-Hopkins syndrome (PTHS) is a rare neurodevelopmental disorder caused by mutations of the transcription factor 4 (Tcf4) gene. Individuals with PTHS often suffer from severe abdominal bloating and constipation. In this short communication, we discuss two individuals with PTHS who died unexpectedly due to gastrointestinal complications. We aim to increase awareness among healthcare professionals who care for individuals with PTHS, to ensure adequate screening and management of gastrointestinal symptoms in this population. Moreover, we discuss how fatal gastrointestinal complications may be related to PTHS and provide an overview of the literature.

Analysis of clinical diagnosis and treatment of intestinal volvulus.

BACKGROUND: The aim of this study is to investigate the clinical characteristics and treatment experience of intestinal volvulus, and to analyze the incidence of adverse events and related risk factors of intestinal volvulus. METHODS: Thirty patients with intestinal volvulus admitted to the Digestive Emergency Department of Xijing Hospital from January 2015 to December 2020 were selected. The clinical manifestations, laboratory tests, treatment and prognosis were retrospectively analyzed. RESULTS: A total of 30 patients with volvulus were enrolled in this study, including 23 males (76.7%), with a median age of 52 years (33-66 years). The main clinical manifestations were abdominal pain in 30 cases (100%), nausea and vomiting in 20 cases (67.7%), cessation of exhaust and defecation in 24 cases (80%), and fever in 11 cases (36.7%). The positions of intestinal volvulus were jejunum in 11 cases (36.7%), ileum and ileocecal in 10 cases (33.3%), sigmoid colon in 9 cases (30%). All 30 patients received surgical treatment. Among the 30 patients underwent surgery, 11 patients developed intestinal necrosis. We found that the longer the disease duration (> 24 h), the higher the incidence of intestinal necrosis, and the higher the incidence of ascites, white blood cell count and neutrophil ratio in the intestinal necrosis group were significantly higher than those in the non-intestinal necrosis group (p < 0.05). After treatment, 1 patient died of septic shock after operation, and 2 patients with recurrent volvulus were followed up within 1 year. The overall cure rate was 90%, the mortality rate was 3.3%, and the recurrence rate was 6.6%. CONCLUSION: Laboratory examination, abdominal CT and dual-source CT are very important for the diagnosis of volvulus in patients with abdominal pain as the main symptom. Increased white blood cell count, neutrophil ratio, ascites and long course of disease are important for predicting intestinal volvulus accompanied by intestinal necrosis. Early diagnosis and timely intervention can save lives and prevent serious complications.

Comprehensive Review: Acute Esophageal Necrosis in the Setting of Gastric Volvulus.

BACKGROUND AND AIMS: Acute esophageal necrosis (AEN) in the setting of gastric volvulus is a rare condition with only a handful of cases reported. Volvulus may contribute to AEN by limiting tissue perfusion and promoting massive reflux of gastric contents on compromised esophageal mucosa. METHODS: We reviewed 225 original articles, literature reviews, case series, brief reports, case reports, and discuss six total cases of co-occurring esophageal necrosis and gastric volvulus. RESULTS AND CONCLUSIONS: We present the first comprehensive analysis of all reported cases in the literature to date and formulate management strategies for the co-occurrence of AEN and volvulus. Management of AEN should be directed at correcting underlying medical conditions, providing hemodynamic support, initiating nil-per-os restriction, and administering high-dose proton pump inhibitor therapy. Surgical intervention is typically reserved for cases of esophageal perforation with mediastinitis and abscess formation.

Endoscopic management of acute sigmoid volvulus in high risk surgical elderly patients: a randomized controlled trial.

BACKGROUND: Most patients with sigmoid volvulus are of old age with multiple comorbidities. So, the risk of surgery for those elderly patients is usually associated with increased rates of morbidity and mortality. Early intervention is required for managing sigmoid volvulus to avoid its serious complications; therefore, early endoscopic untwist of sigmoid colon can be performed followed by endoscopic fixation of sigmoid colon under sedation in this category of the patients to avoid development of high risk surgical complications following surgical fixation of sigmoid colon or sigmoidectomy after initial simple loop colostomy procedure to relieve obstruction. METHODS: This prospective randomized controlled clinical trial included all patients who developed acute sigmoid volvulus and were referred to the Zagazig University Hospital Emergency Department between December 2020 and August 2022. The study was prospectively approved by Zagazig University Faculty of Medicine Institutional Review Board (Approval Number: 9989/23-10-2022) and was retrospectively submitted in http://clinicaltrials.gov in November 2022 ( http://clinicaltrials.gov ID: NCT05620446). Included eligible patients were simply randomized at a 1:1 ratio to "Endoscopic Group (EG)" or "Surgical Group (SG)" via drawing of sealed envelopes containing computer-generated random numbers prepared by a third party before start of intervention. RESULTS: Sample size included 18 patients divided into 2 equal groups. (1) Endoscopic group included 9 patients who were subjected to endoscopic untwist of sigmoid colon followed by endoscopic fixation of sigmoid colon under sedation; (2) Surgical group included 9 patients who were subjected to surgical fixation of sigmoid colon or sigmoidectomy after initial simple loop colostomy under general anesthesia. In comparison between both groups, there were statistically significant differences regarding length of hospital stay and procedure time. Unfortunately, there were no statistically significant differences regarding postoperative complications and co-morbidities. Eight patients in the endoscopy group demonstrated excellent quality of life, and one demonstrated good quality of life; unlike the surgical group, there were 3 patients with excellent quality of life, 5 patients with good quality of life, and 1 patient with poor quality of life. So there was statistically significant difference regarding quality of life between both groups. During the 9-month follow-up period, both groups demonstrated no cases of recurrence post-fixation. CONCLUSION: Endoscopic management of acute sigmoid volvulus is effective and safe in elderly high risk surgical patients (either in managing the intestinal obstruction caused by volvulus or in definitive treatment of volvulus).

Upper gastrointestinal series in healthy neonates with bilious vomiting-is it still obvious? A retrospective observational study.

AIM: Demand for upper gastrointestinal contrast series (UGI) to investigate bilious vomiting (BV) has increased in recent years, mostly due to greater awareness of the need to rule out malrotation and midgut volvulus (MGV). We aimed to examine predictive value of clinical parameters in the management of healthy neonates presenting with BV and re-assess the role of UGI in their management. METHODS: A retrospective cohort study including medical, imaging and surgical data of neonates who underwent UGI due to BV. RESULTS: A total of 157 term neonates, eight neonates (5.1%) had confirmed surgical diagnosis of malrotation, five of them had malrotation with MGV, including two neonates who underwent extensive intestinal resection due to necrosis. Neonates with a combination of abnormal plain radiograph and abdominal distention had 10 times higher odds of malrotation diagnosis, adjusting for age at first BV (p = 0.017). Neonates with a combination of abnormal plain radiograph, abdominal distention and abdominal tenderness had 25 times higher odds of MGV (p = 0.002). CONCLUSION: This study reaffirms the role of UGI as the current main diagnostic tool for malrotation and MGV. Physical examination and plain radiograph findings can help but cannot substitute UGI study.

Factors associated with diagnostic ultrasound for midgut volvulus and relevance of the non-diagnostic examination.

BACKGROUND: Few reports explore the frequency and factors associated with diagnostic ultrasound (US) for midgut volvulus. OBJECTIVE: To evaluate predictive factors for diagnostic US for midgut volvulus and clinical outcomes of patients with non-diagnostic US. MATERIALS AND METHODS: This retrospective study included infants imaged for midgut volvulus with US. Exams were rated as diagnostic (midgut volvulus present or absent) or non-diagnostic by a pediatric radiologist, and in cases of disagreement with the original report, an additional pediatric radiologist was the tie-breaker. For each exam, the following were recorded: age, weight, respiratory support, exam indication, sonographer experience, and gaseous dilated bowel loops on radiography. Logistic regression models with "stepwise" variable selection were used to investigate the association of diagnostic US for midgut volvulus with each of the independent variables. RESULTS: One hundred nineteen patients were imaged. US was diagnostic in 74% (88/119) of patients. In subsets of patients presenting with bilious emesis or age <28 days, US was diagnostic in 92% (22/24) and 90% (53/59), respectively. Logistic regression suggested that symptom type (bilious vs other) was the best predictor of diagnostic US (type 3 P=0.02). Out of 26 patients with available radiographs, US was diagnostic in 92% (12/13) of patients without bowel dilation on radiographs compared to 62% (8/13) of patients with bowel dilation (P=0.16). Weight, respiratory support, and sonographer experience did not differ between groups. Two sick neonates, ages 2 days and 30 days, in whom the primary clinical concern was dropping hematocrit and sepsis, respectively, had non-diagnostic ultrasounds in the setting of bowel dilation on radiography. Both were found to have midgut volvulus at surgery and both expired. CONCLUSION: US was most frequently diagnostic in patients with bilious emesis or age less than 28 days. Non-diagnostic US for midgut volvulus must prompt a predetermined follow-up strategy, such as an additional imaging study (e.g., upper GI series), particularly in a sick child, as non-diagnostic US may miss midgut volvulus.

Predictive factors of bowel resection for midgut volvulus based on an analysis of bi-center experiences in southern Japan.

PURPOSE: Midgut volvulus is an urgent disease often occurring in neonates. This study clarified the clinical features of midgut volvulus and evaluated predictors to avoid bowel resection. METHODS: This bi-center retrospective study enrolled 48 patients who underwent surgery for intestinal malrotation between 2010 and 2022. Patients' background characteristics and preoperative imaging findings were reviewed. RESULTS: Midgut volvulus was recognized in 32 patients (66.7%), and 6 (12.5%) underwent bowel resection. Based on a receiver operating curve analysis of bowel resection, the cut-off value of the body weight at birth and at operation were 1984 g [area under the curve (AUC) 0.75, 95% confidence interval (CI) 0.52-0.99] and 2418 g (AUC 0.70, 95% CI 0.46-0.94), respectively. The cut-off value of intestinal torsion was 540° (AUC 0.76, 95% CI 0.57-0.95), and that of the time from the onset to the diagnosis was 12 h (AUC 0.85, 95% CI 0.72-0.98). For midgut volvulus with an intestinal torsion > 540°, the most sensitive preoperative imaging test was ultrasonography (75%) Patients with bloody stool tended to undergo bowel resection. CONCLUSIONS: Patients with a low body weight and bloody stool should be confirmed to have whirlpool sign by ultrasonography and scheduled for surgery as soon as possible.