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Clinical Trial Summary

The purpose of this study is to apply and validate a clinicoradiological score for the prediction of severity of strangulated small bowel occlusion (SBO). This score was elaborated by analyzing clinical, biological and radiological parameters of patients admitted in an emergency center for acute strangulated SBO. Two clinical, two biological and two radiological parameters were shown to significantly predict the surgical outcome of SBO patients.

Since any delay in the management of SBO may result in devastating consequences, a score predicting the severity of the SBO episode is an essential tool for helping in the management of SBO patients. A prospective multicenter validation of the score is mandatory for its extended use.


Clinical Trial Description

Elaboration of the SBO score:

Intestinal ischaemia as a result of small bowel obstruction (SBO) requires prompt recognition and early intervention. A clinicoradiological score was sought to predict the risk of ischaemia in patients with SBO. A determined protocol for the assessment of patients presenting with SBO was used. A logistic regression model was applied to identify determinant variables and construct a clinical score that would predict ischaemia requiring resection. Of 233 successive patients with SBO, 138 required laparotomy of whom 45 underwent intestinal resection. In multivariable analysis, six variables correlated with small bowel resection and were given one point each towards the clinical score: history of pain lasting more than 4 days, guarding, C-reactive protein level at least 75 mg/l, leucocyte count over 10 G/l, free intraperitoneal fluid volume exceeding 500 ml on computed tomography (CT) and reduction of CT small bowel wall contrast enhancement. The risk of intestinal ischaemia was 6 per cent in patients with a score of 1 or less, whereas 21 of 29 patients with a score of three or more 3 underwent small bowel resection. A positive score of 3 or more had a sensitivity of 67.7 per cent and specificity 90.8 per cent; the area under the receiver operating characteristics curve was 0.87 (95 per cent confidence interval 0.79 to 0.95). By combining clinical, laboratory and radiological parameters, the clinical score allowed early identification of strangulated SBO.

The purpose of the present protocol is to apply the SBO score as a prospective multicenter study. After informed consent, SBO patients corresponding to the inclusion and exclusion criteria will be managed according to the score. Patients with a score of 0 to 2 will be treated conservatively, while a score ≥3 will imply emergency surgery. For its validation, the conservative and surgical outcomes will be compared with the results obtained for the elaboration of the score. ;


Study Design

Allocation: Non-Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT01125280
Study type Interventional
Source University Hospital, Geneva
Contact Frank P Schwenter, MD, PhD
Phone +41223727703
Email frank.schwenter@hcuge.ch
Status Not yet recruiting
Phase N/A
Start date July 2010
Completion date July 2013

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