An unusual case of small bowel and sigmoid volvuli presenting with dyspnea.

Intestinal volvulus is a pathological condition that can lead to bowel obstruction and intestinal ischemia, and is therefore potentially fatal in severe cases. Patients' symptoms are often nonspecific: volvulus most frequently presents as an acute abdomen, but vague symptoms such as abdominal pain and distension, nausea and vomiting are common. In this scenario, the gold standard for diagnosis is contrast-enhanced computed tomography, which allows a timely assessment. However, in this article we present a rare case of a small bowel volvulus associated with a sigmoid volvulus in which the patient presented to the emergency department with respiratory symptoms.

Spatial and temporal diversity of Simulium damnosum s.l. gut microbiota and association with Onchocerca volvulus infection in Cameroon.

Arthropod microbiota plays an important role in host physiology, and there is growing interest in using vector symbionts to modify vector competence and control parasite transmission. This study aims to characterise the blackfly Simulium damnosum s.l. gut microbiota and to explore possible associations with various bio-ecological determinants of the Onchocerca volvulus establishment and the transmission in blackfly. Adult female blackflies were caught in three Cameroonian health districts belonging to different bioecological zones endemic for onchocerciasis. Flies were dissected and qPCR screened for Onchocerca volvulus infection. The diversity of the blackflies gut microbiota was assessed by high-throughput sequencing of the V3-V4 hypervariable region of the bacterial 16S ribosomal RNA. Subsequent metataxo-genomic, multivariate, and association analysis were used to investigate the variables that influence the microbiota diversity. Transmission index rates ranging from 20.7 to 6.0 % and 6.2-2.0 % for infection and infectivity rates, respectively, indicate ongoing transmission of onchocerciasis across all surveyed health districts. The identified bacterial taxa were clustered into four phyla, five classes, and 23 genera. The S. damnosum s.l. gut microbiota was dominated by Wolbachia and by Rosenbergiella in Wolbachia-free Simulium. Significant differences were observed in the diversity of S. damnosum s.l. microbiota concerning parity status (P = 0.007), health district of origin (P = 0.001), and the presence of the Onchocerca volvulus. Simulium from the Bafia health district also showed increased bacterial diversity between two consecutive years (P = 0.001). Four bacterial taxa, including Serratia, were associated with the absence of the O. volvulus infection. These results indicate that S. damnosum s.l. from different onchocerciasis foci in Cameroon, exhibit distinguishable gut microbial compositions which are dynamic over time. Some bacterial species are associated with the O. volvulus infection and could be further investigated as biological target/tool for vector modified-based onchocerciasis control.

Twisted Troubles: A Rare Case of Intestinal Obstruction Due to Endometriosis and a Review of the Literature.

BACKGROUND AND OBJECTIVES: Intestinal endometriosis is an exceptionally rare cause of intestinal obstruction. This case report and literature review aim to highlight the clinical presentation, diagnostic challenges, and surgical management of this condition. MATERIALS AND METHODS: We report the case of a 50-year-old female patient who presented diffuse abdominal pain, nausea, vomiting, a distended abdomen, and an absence of intestinal transit for gas and faeces. Initial symptoms included flatulence and constipation, which gradually worsened for two months prior to the patient's hospital admission, leading to acute intestinal obstruction. Diagnostic investigations, including blood tests, ultrasound (USG), X-ray, and a contrast-enhanced computer tomography (CT) scan, revealed significant small bowel dilatation and an ileal volvulus. The patient underwent urgent hydro-electrolytic and metabolic rebalancing followed by a median laparotomy surgical procedure. Intraoperative findings included a distended small intestine and an obstructive ileal volvulus, and required an 8 cm segmental enterectomy and terminal ileostomy. RESULTS: Postoperative recovery was slow but favourable, with a gradual digestive tolerance. Histopathological examination of the resected ileum revealed intestinal endometriosis characterized by a fibro-conjunctive reaction and nonspecific chronic active inflammation. Five months later, the patient underwent a successful reversal of the ileostomy with a mechanical lateral anastomosis of the cecum and ileum, resulting in a favourable postoperative course. CONCLUSIONS: This case underscores the importance of considering intestinal endometriosis in women presenting with unexplained gastrointestinal symptoms and highlights the need for timely surgical intervention and careful postoperative management. Further research is required to better understand the pathophysiology and optimal treatment strategies for intestinal endometriosis.

Radiographic findings in dogs with 360 degrees gastric dilatation and volvulus.

Gastric dilatation and volvulus (GDV) is a life-threatening emergency that requires urgent intervention. Radiographic features associated with 360-GDV in dogs have not been investigated. The aim of this retrospective observational study is to describe radiographic features and clinical variables in dogs affected with 360-GDV and to report agreement rates between different radiologists. We also report the sensitivity and specificity of radiographs to diagnose 360-GDV in dogs. Confirmed 360-GDV cases were retrieved, and the radiographic findings were compared with dogs presenting with gastric dilatation (GD) and 180-GDV. Images were reviewed and graded by three blinded board-certified radiologists. A total of 16 dogs with confirmed 360-GDV were identified. The median age was 10 years old (2-13 years). The sensitivity for detection of 360-GDV ranged between 43.7% and 50%, and the specificity between 84.6% and 92.1%. Interobserver agreement on final diagnosis was substantial (Kappa = 0.623; 0.487-0.760, 95% CI). The highest agreement rate was in cases of 180-GDV (87%), followed by the GD cases (72%) and 360-GDV (46%). Severe esophageal distension and absence of small intestinal dilation were the only radiographic features specifically associated with 360-GDV. A similar pyloric position was found between GD and 360-GDV. Additional radiographic variables that could help differentiate GD from 360-GDV include the degree of gastric distension and the peritoneal serosal contrast. Two cases with 360-GDV were misdiagnosed by the three radiologists as GD. In conclusion, radiographically, 360-GDV cases can reassemble GD and vice versa. Radiologists and clinicians should be aware of the low sensitivity of radiographs for the detection of 360-GDV.

Colonic Volvulus.

Colonic volvulus represents 10 to 15% of all large bowel obstructions in the United States. It most commonly occurs in the sigmoid colon or cecum. Morbidity and mortality from colonic volvulus are high. It is therefore essential to have a high level of suspicion based on presentation and expedient diagnosis and management to prevent progression to ischemia or perforation. Broad goals of management include evaluation of colon viability, relief of obstruction, and prevention of recurrence. Endoscopic and surgical approaches vary based on the site of volvulus, presence of ischemia or perforation, and patient characteristics. This review outlines the epidemiology, presentation, diagnosis, and management of colonic volvulus. A contemporary diagnostic and treatment algorithm is included.

Ultrasound for infantile midgut malrotation: Techniques, pearls, and pitfalls.

Midgut malrotation with volvulus is a surgical emergency with potentially devastating outcomes which include short gut syndrome necessitating long-term parenteral nutrition, overwhelming sepsis, and death. The clinical presentation is most frequently with bilious vomiting in the first days-weeks of life, which is non-specific and common. Timely imaging investigation is therefore crucial to prevent delays to diagnosis and treatment and avoid unnecessary surgical exploration in infants with non-surgical bilious vomiting. Fluoroscopic upper gastrointestinal contrast series (UGI) has been the first-line imaging modality to investigate midgut malrotation at pediatric surgical centers worldwide. However, there is a growing body of evidence to indicate that ultrasound (US) has greater diagnostic accuracy than UGI in this context. Furthermore, US offers the benefits of accessibility, portability, lack of ionizing radiation, and the ability to identify alternative diagnoses, and is beginning to attract significant attention and consideration in the literature. Over the last 3 years, we have transitioned to an "US-first" pathway for the investigation of midgut malrotation in infants with bilious vomiting. This pictorial essay illustrates our comprehensive approach, describes unique troubleshooting techniques, and highlights the variably published pitfalls we have encountered with the aim of encouraging wider adoption.

Management of early recurrence following successful endoscopic detorsion in sigmoid volvulus.

Objectives: Following endoscopic detorsion, sigmoid volvulus (SV) recurs in 3%-86% of patients, approximately 13% of which are early recurrence presenting during the first admission period. Although semielective surgery is the traditional approach, elective surgery following repetitive endoscopy or percutaneous endoscopic sigmoidopexy (PES) are other alternatives in the management of early SV recurrence. Our aim was to discuss the role of semielective surgery in above-mentioned rare clinical entity. Methods: Among our 1,076-case series, we retrospectively evaluated the records of 612 patients (56.9%) treated between June 1966 and June 1986, while we prospectively utilized the data of 464 patients (43.1%) managed between June 1986 and January 2024. We recorded the treatment option and prognosis for each patient. Results: Early SV recurrence was determined in 34 (5.5%) of the 621 patients with successful nonoperative detorsion. We treated all of these patients by semielective surgery. The surgical procedures were detorsion in one patient (2.9%), mesopexy in 11 (32.4%), sigmoidectomy with primary anastomosis in 17 (50.0%), and sigmoidectomy with stoma in five (14.7%). In this series, mortality and morbidity rates were 2.9% (one patient) and 14.7% (five patients), respectively. Conclusion: Semielective surgery is the traditional approach tried by most surgeons, which allows for the recovery of the general status of the patients, bowel preparation, and antibiotic prophylaxis. However, repetitive endoscopy followed by elective surgery or PES are current alternatives for some selected patients. Unfortunately, the relatively low effectuation rate of elective surgery following successful repetitive endoscopic detorsion and recurrence-related poor prognosis are still important handicaps of the latter procedure.

Synchronous sigmoid-cecal volvulus: a rare case of large-bowel obstruction-a case report.

INTRODUCTION AND IMPORTANCE: Large bowel obstruction caused by volvulus poses a life-threatening risk without immediate intervention. Sigmoid colon volvulus is predominant (43-75%), followed by cecal volvulus 10-52%). Synchronous double colonic volvulus is extremely rare, with limited documented cases in academic literature. CASE PRESENTATION: We report a case of synchronous volvulus involving the sigmoid colon and cecum in a 45-year-old male of the Toro tribe from Fort Portal city in western Uganda who presented with acute abdominal pain, distension, and complete constipation for 2 days, accompanied by five episodes of non-bloody feculent vomiting and anorexia. CLINICAL DISCUSSION: Upon admission, the patient presented with stable vital signs and a mildly tender, tympanic, distended abdomen with absent bowel sounds. Plain radiographs revealed the characteristic "coffee bean" sign, indicative of sigmoid volvulus. Following optimization, laparotomy confirmed synchronous volvulus involving both the sigmoid and cecum. Subsequently, a total colectomy with end ileostomy was performed, after which the patient experienced an uneventful recovery. CONCLUSION: Synchronous double colonic volvulus, a rare condition, is frequently overlooked clinically. Timely recognition and intervention are crucial to address diagnostic challenges and prevent potentially fatal outcomes.

Recurrence of Sigmoid Volvulus Associated With Constipation: A Retrospective Cohort Study.

Introduction Sigmoid volvulus is a gastrointestinal condition characterized by twisting the sigmoid colon, leading to obstruction and potentially severe complications. It is associated with factors such as advanced age, constipation, and the use of certain medications. Despite treatment, recurrence is common and significantly impacts patients' quality of life. This study aimed to identify factors influencing the recurrence of sigmoid volvulus to develop effective preventive strategies. Methods A retrospective cohort study was conducted at Fuchu Hospital, Osaka, including 44 patients diagnosed with sigmoid volvulus between May 2013 and May 2023. Data on variables such as age, gender, constipation, cardiac and neuropsychiatric diseases, hypertension, diabetes mellitus, sigmoid colon overgrowth, and BMI were collected from electronic medical records. Recurrence was defined as two or more diagnoses of sigmoid volvulus during the study period. Logistic regression analysis was used to identify significant predictors of recurrence. Results Of the 44 patients, 20 experienced recurrences. Single regression analysis identified constipation, neuropsychiatric disorders, and sigmoid colon overgrowth as significant factors. Logistic regression analysis confirmed constipation as an important predictor of recurrence (OR: 8.84, 95% CI: 2.05-38.1, p=0.0034). The area under the receiver operating characteristic (ROC) curve for the model was 0.804 (95% CI: 0.67-0.938), indicating good predictive accuracy. Conclusion Constipation is a significant risk factor for the recurrence of sigmoid volvulus, likely due to chronic fecal overload leading to elongation and dilation of the sigmoid colon. Effective management of constipation is crucial in preventing recurrence. Future prospective studies with larger sample sizes are needed to validate these findings and explore additional preventive measures.

Evaluating Racial Disparities in 30-day Outcomes for African Americans Following Colectomy for Volvulus.

BACKGROUND: Surgery is the definitive treatment for colonic volvulus despite initial decompression therapy. In general surgery, African Americans were found to have higher risks of mortality and morbidities. However, racial disparity in colectomy outcomes for volvulus among African Americans had not been explored. This study examined the 30-day outcomes for African Americans following colectomy for volvulus. METHODS: The National Surgical Quality Improvement Program (NSQIP) targeted colectomy database from 2012 to 2022 was used. Only patients with volvulus as the primary indication for colectomy were selected. A 1:1 propensity score matching was applied to African Americans and Caucasians to match sex, age, baseline characteristics, preoperative preparation, indication for surgery (if emergent), and operative approaches. Thirty-day postoperative outcomes were examined. RESULTS: There were 1027 and 7451 African Americans and Caucasians who underwent colectomy for volvulus, respectively. All African Americans were 1:1 propensity-score matched to their Caucasian counterparts. African Americans and Caucasians had a comparable mortality rate (7.21% vs 7.89%, P = 0.62). While African Americans had a higher risk of pulmonary complications (16.85% vs 13.53%, P = 0.04), other surgical complications were all comparable between African Americans and Caucasians. However, African Americans had a longer time from admission to operation (2.70 ± 3.99 vs 2.17 ± 3.36 days, P < 0.01) and a longer length of stay (LOS; 12.81 ± 10.28 vs 10.50 ± 7.72 days, P < 0.01). CONCLUSION: African Americans were found to have higher risks of pulmonary complications, delayed operation, and extended LOS. These disparities raise concerns and warrant further investigation into their underlying causes. Effective targeted interventions may be necessary to address these issues.

Intra-abdominal heterotopic mesenteric ossification associated with intestinal volvulus in a sow (Sus scrofa domesticus).

An adult, female, mixed breed sow from a commercial breeding unit, with a clinical history of lethargy, poor body condition, hypersalivation, dyspnoea and reddened ears, was submitted for necropsy. Post-mortem examination identified the presence of an intestinal volvulus, which developed around an osseous intra-abdominal mesenteric lesion. Gross pathology and histopathology combined with post-mortem computed tomography (CT) of the mass confirmed the lesion as intra-abdominal heterotopic mesenteric ossification (IHMO), according to criteria applied to human disease. This report highlights a rare case of porcine IHMO, a poorly understood metaplastic condition, comparable to the human disease. We highlight the importance of a combination of CT and histopathology to reach a final diagnosis of the disease. Histopathology and further investigation of similar cases may contribute to a better understanding of the pathogenesis in animals, which is currently poorly understood.

Colonic torsion and volvulus in dogs is associated with a low mortality rate and good long-term outcome.

OBJECTIVE: To describe clinical findings, complications, and short- and long-term outcomes associated with colonic torsion and volvulus in dogs. ANIMALS: 28 client-owned dogs. CLINICAL PRESENTATION: Multi-institutional, retrospective study. Medical records were searched for dogs of any age, body weight, sex, and breed that underwent surgery for colonic torsion and volvulus. Collected data included signalment, previous history, preoperative findings, time until surgery, intraoperative findings, postoperative complications, length of hospitalization, survival to discharge, and outcomes. RESULTS: 28 dogs were included. Thirteen of 28 dogs (46.4%) had preexisting gastrointestinal conditions. Nine of 28 dogs (32.1%) had a gastropexy performed prior to presentation. Ten dogs (35.7%) were found to have a resolution of colonic torsion and volvulus at the time of the surgery. All but 1 dog (27 of 28 [96.4%]) survived to discharge. Two dogs died during the postoperative period, yielding a mortality rate of 7.1%. Postoperative complications were noted in 9 dogs (9 of 28 [32.1%]). Long-term follow-up information was available in 16 of 28 dogs (57%). Among 16 dogs with at least 6 months' follow-up, all dogs (16 of 16 [100%]) were alive at 6 months postoperatively. Two dogs developed mesenteric torsion after the initial surgery. CLINICAL RELEVANCE: Dogs with colonic torsion and volvulus undergoing surgery can have an excellent survival-to-discharge ratio with a low mortality rate. Surgeons should not be prompted to euthanize or assume a guarded prognosis solely on the basis of the intraoperative appearance of the bowel and should consider all factors prior to making decisions. Owners should be informed of the risk of developing further torsional diseases after surgery.

From Volvulus to Short Bowel Syndrome: The Impact of Extensive Gangrene.

Compound volvulus, also known as ileosigmoid knotting, is an unusual but dangerous surgical condition that causes intestinal obstruction. It is a rare condition when an area of the small intestines is twisted and interrupts the blood supply, a closed-loop obstruction that is not common for one of the causes of intestinal blockage. Still, it is essential to distinguish the difference between an ileosigmoid knot and a simple sigmoid volvulus from each other, which are managed differently. Unlike abdominal X-rays, which are often nothing but clear images, CT scans or MRIs in their place provide more precise diagnostic information to help this problem diagnosis be traced. The first step in treating the patient is to immediately do an emergency laparotomy if the case involves ileosigmoid knotting, and which specific surgical procedure to use-resectional or non-resectional-is determined by the surgeon during the operation, who is considering such scales as the extent of the affected vascular compromise, the presence of necrosis or perforation, and the overall viability of the involved intestinal loops to conduct the most sought-after therapy.  In this case, the 45-year-old male presented with insidious-onset abdominal pain, vomiting, and constipation, along with signs of dehydration and hypotension. Physical examination revealed a distended abdomen, absent bowel sounds, and elevated white blood count and lactate levels, with an erect abdominal X-ray showing a dilated bowel, suggesting acute bowel obstruction with possible ischemia. This clinical presentation is consistent with acute bowel obstruction, potentially due to ileosigmoid knotting, which requires urgent surgical intervention. Short bowel syndrome is a malabsorptive disorder characterized by the presence of less than 200 cm of the small bowel, sometimes as a result of congenital or surgical causes. This is a real problem for an individual because he or she must be cautious and watch what they eat and how much they eat fortified foodstuffs, as the decreased absorptive capability of the small intestine can restrict the body's ability to take in and make use of necessary nutrients, fluids, and electrolytes.

Paraesophageal Hernias with Perforation.

Acute gastric volvulus presents with the classic triad of severe epigastric pain, vomiting, and difficulty or inability to pass a nasogastric tube. It can be complicated by strangulation and perforation which are associated with high mortality rates. Quick diagnosis and attempt at decompression is paramount. Computer-aided tomography is an important diagnostic step, and findings such as gastric wall thickening, extraluminal gas, and mediastinal fluid should prompt urgent surgical intervention. Approaches can include minimally invasive or open operations and in general should include reduction of the hernia, resection of devitalized tissue, and in some cases esophageal exclusion with delayed reconstruction.

Acute Gastric Volvulus: A Rare Complication of Hiatal Hernia.

Gastric volvulus, characterized by stomach rotation, is a rare condition arising from congenital or acquired factors. Predominantly affecting pediatric and elderly populations, it necessitates a high index of suspicion for timely diagnosis. Delayed recognition may precipitate severe complications such as ischemia, strangulation, and septic shock, often culminating in fatal outcomes. We present a case of a 71-year-old male initially admitted for suspected gastroenteritis, subsequently developing acute gastric volvulus during hospitalization, necessitating immediate surgical intervention. This case contributes to the scant literature on gastric volvulus in the elderly demographic.

Malrotation with mid-gut volvulus and partial small bowel peritoneal membrane encapsulation.

Urgent investigation is crucial for infants with bilious vomiting, potentially indicating bowel obstruction. Upper gastrointestinal fluoroscopy aids diagnosis, but is not without its challenges. This case report describes a rare case of neonatal intestinal malrotation and mid-gut volvulus with an additional complication of congenital peritoneal encapsulation. Contribution: This case study offers insights into associated diagnostic challenges and underscores the value of utilising fluoroscopy in diagnosing complex gastrointestinal conditions.

Advantage of multichannel intraluminal impedance in the diagnosis of aerophagia: a case report.

BACKGROUND: Aerophagia is caused by the swallowing of excessive air and associated with various gastrointestinal symptoms. Aerophagia is diagnosed based on the observation of the occurrence of excessive air swallowing or ingestion; however, it tends to be difficult and often delayed. Early recognition and diagnosis of aerophagia are required to avoid unnecessary diagnostic investigations or serious clinical complications. Given that multichannel intraluminal impedance-pH measurement can discriminate gas, liquid, and mixed swallows, it can be useful for the diagnosis of aerophagia. CASE PRESENTATION: A 7-year-old girl presented to us with vomiting, and abdominal radiography showed dilatation of the stomach and intestine with no signs of mechanical obstruction. After successful conservative treatment, her symptoms recurred. Along with frequent visible and audible air swallowing, computed tomography (CT) revealed a severely dilated stomach with organoaxial volvulus. Multichannel intraluminal impedance-pH measurement was performed for further exploration. Patients showed numerous air swallows, particularly in the daytime during the 24-h recording period. She was diagnosed with aerophagia complicated by gastric volvulus. Given that she had a mental disorder and psychological counseling was difficult, laparoscopic anterior gastropexy and gastrostomy were performed to correct the gastric volvulus and decompression of gastric dilation by gastrostomy. CONCLUSIONS: In addition to clinical symptoms, multichannel intraluminal impedance-pH measurement may help more accurately and objectively diagnose aerophagia. Further studies of air swallowing patterns may be useful for understanding the pathophysiological mechanism of aerophagia.

Double ileo-sigmoid volvulus: Report of three (03) cases of ileo-sigmoid node.

INTRODUCTION: The ileo-sigmoid node is a rare condition that causes mixed intestinal obstruction. It is difficult to diagnose preoperatively and requires medical and surgical management. We report on managing 03 cases of the ileo-sigmoid node. CASE PRESENTATION: 02 male patients (25 and 37 years old) and one female patient (43 years old) were seen in emergency for occlusive syndromes. The abdominal X-rays in our patients showed air-fluid levels of the small intestine type in two cases and of the mixed type in one case. The diagnosis of intestinal obstruction by strangulation was accepted in all three patients. Hypovolaemic shock was found in the female patient. All three patients had received preoperative resuscitation. Laparotomy revealed type II ileo-sigmoid nodes in 02 cases and type I in one. We noted ileal and sigmoid necrosis in 02 cases and ileal necrosis in 01 case. All three patients underwent ileal and sigmoid resection followed by colorectal anastomosis and terminal ileostomy. Post-operative management was straightforward in all the 03 cases. CLINICAL DISCUSSION: The ileo-sigmoid node is a serious pathological situation, with the risk of rapid evolution of the intestines involved. It is a medical and surgical emergency requiring rapid and appropriate treatment. CONCLUSION: The ileo-sigmoid node is a serious condition with a complex preoperative diagnosis. It is a medical and surgical emergency requiring rapid and appropriate management.