Clinical outcomes of sigmoid volvulus and risk factors for its recurrence: a multicenter study in Korea

Sigmoid and cecum colon volvulus: a case report

INTRODUCTION

Colon volvulus is the twisting of a segment of colon on its mesenteric axis, which can lead to the obstruction of the lumen and the blood supply. Colon volvulus is common in "volvulus belt" countries and can involve the sigmoid (60-70%) and cecum (25-40%).

CASE PRESENTATION

We report a case of a 47-year-old male, Alawites, who presented with bowel obstruction and dilated abdomen without any specific abdominal pain. Abdominal laparotomy showed both sigmoid and cecum volvulus with no signs of perforation or ischemia.

DISCUSSION AND CONCLUSION

One of the possible risk factors of sigmoid colon volvulus is the length of the rectum and sigmoid, while mobile cecum is considered as a possible reason for cecum volvulus. The management remains controversial and is specific for every case, depending mainly on the vitality of the colonic walls and the general condition of the patient.

Sigmoid volvulus: outcomes of treatment and predictors of morbidity and mortality

Purpose

To analyze the treatment outcomes for sigmoid volvulus (SV) and identify risk factors of complications and mortality.

Methods

Observational study of all consecutive adult patients diagnosed with SV who were admitted from January 2000 to December 2020 in a tertiary university institution for conservative management, urgent or elective surgery. Primary outcomes were 30-day postoperative morbidity, mortality and 2-year overall survival (OS), including analysis of risk factors for postoperative morbidity or mortality and prognostic factors for 2-year OS.

Results

A total of 92 patients were included. Conservative management was performed in 43 cases (46.7%), 27 patients (29.4%) underwent emergent surgery and 22 (23.9%) were scheduled for elective surgery. Successful decompression was achieved in 87.8% of cases, but the recurrence rate was 47.2%. Mortality rates following episodes were higher for conservative treatment than for urgent or elective surgery (37.2%, 22.2%, 9.1%, respectively; p = 0.044). ASA score > III was an independent risk factor for complications (OR = 5.570, 95% CI = 1.740–17.829, p < 0.001) and mortality (OR = 6.139, 95% CI = 2.629–14.335, p < 0.001) in the 30 days after admission. Patients who underwent elective surgery showed higher 2-year OS than those with conservative treatment (p = 0.011). Elective surgery (HR = 2.604, 95% CI = 1.185–5.714, p = 0.017) and ASA score > III (HR = 0.351, 95% CI = 0.192–0.641, p = 0.001) were independent prognostic factors for 2-year OS.

Conclusion

Successful endoscopic decompression can be achieved in most SV patients, but with the drawbacks of high recurrence, morbidity and mortality rates. Concurrent severe comorbidities and conservative treatment were independent prognostic factors for morbidity and survival in SV.

Endoscopic Decompression of Sigmoid Volvulus: Review of 748 Patients

Background: Sigmoid volvulus (SV) is the twisting of the sigmoid colon around itself. Endoscopy both helps diagnosis and provides treatment in the absence of peritonitis or perforation in SV. Nevertheless, there are some controversies or limitations on this subject. The aim of this study is to evaluate the current role of the endoscopic decompression in the treatment of SV. Materials and Methods: The clinical records of 1040 patients with SV treated over a 55-year period from June 1966 to July 2021 were reviewed retrospectively until June 1986 and prospectively thereafter. For each case, preoperational parameters, treatment options, and prognosis were noted. Results: Endoscopic decompression was tried in 748 patients (71.9%). The procedure was successful in 585 cases (83.2%), whereas unsuccessful in 118 (16.8%) of 703 patients (94.0%) with viable bowel. The mortality rate was 0.5% (4 patients), the morbidity rate was 1.9% (14 patients), the early recurrence rate was 5.5% (32 patients), whereas the mean hospitalization period was 34.6 hours (range: 24-96 hours). Conclusions: Despite some controversies or limitations in some subjects including the strategy in ischemic or gangrenous cases, the factors affecting the success, kind of the used instruments, technical details of the application, role of the flatus tubes, and the specific topics such as SV in childhood or pregnancy, endoscopic decompression is the first-line therapy in selected patients with SV.

Colonic Volvulus in Children: Surgical Management of a Challenging Condition

Colonic volvulus (CV) is a rare but potentially life-threatening condition with unclear etiopathogenesis. To date, less than 80 pediatric cases have been described. Hirschsprung’s disease (HD) is associated with CV in 17% of cases, representing a significant risk factor. Non-HD CV is an even more complex entity. The aim of this study is to describe a series of patients with CV to accentuate some peculiar aspects of this disease. We performed a retrospective study (period: 2012–2021) collecting information of patients with CV. Data analyzed included: demographics, medical history, presenting symptoms and radiological and surgical details. Eleven patients (12.5 ± 2.8 years; 7F/4M) had CV (eight sigmoid, two transverse colon, one total colon). Five patients had associated anomalies and three had HD. A two-step approach with volvulus endoscopic/radiological detorsion followed by intestinal resection was attempted in eight cases (one endoscopic approach failed). Three patients required surgery at admission. At follow-up, two patients developed recurrent intestinal obstruction, one of whom also had anastomotic stenosis. Colonic volvulus is a challenging condition that requires prompt patient care. A missed diagnosis could lead to severe complications. The evaluation of the patient should include a careful histological examination (searching for HD and alpha-actin deficiency), immunologic and metabolic screening, neurological tests and detection of chronic intestinal pseudo-obstruction (CIPO). Lifelong follow-up is mandatory for the early recognition and treatment of progressive diseases involving the proximal gastrointestinal tract.

Risk factors affecting failure of colonoscopic detorsion for sigmoid colon volvulus: a single center experience

PURPOSE

Colonoscopic detorsion (CD) is the first treatment option for uncomplicated sigmoid volvulus (SV). We aim to examine the factors affecting the failure of CD.

METHODS

The files of patients, treated after diagnosis of SV between January 2015 and September 2020, were retrospectively reviewed. Patients' demographic data, comorbidities, endoscopy reports, and surgical and other treatments were recorded. Patients were divided into two groups, as the successful CD group and unsuccessful CD group. The data were compared between the groups, and multivariate analysis of statistically significant variables was performed.

RESULTS

There were 21 patients in the unsuccessful CD group and 52 patients in the successful CD group. The unsuccessful CD rate was found to be 28.76%; this is likely a function of more neuropsychiatric disease, more accompanying sigmoid diverticulum, previous abdominal surgery, abdominal tenderness, onset of symptoms for more than 48 h, higher mean intra-abdominal pressure (IAP), IAP over 15 mmHg, larger mean diameter of the cecum, the cecum diameter over 10 cm, and higher mean C-reactive protein (CRP) values as statistically significant. In the multivariate analysis, previous abdominal surgery and cecum diameter over 10 cm were seen as predictive factors for failure of CD (p=0.049, OR=0.103, and p = 0.028, OR=10.540, respectively).

CONCLUSIONS

CD failure rate was significantly associated with previous abdominal surgery and a cecum diameter over 10 cm. We found that patients with these factors will tend to need more emergency surgery.