Small bowel obstruction: early parameters predicting the need for surgical intervention

Eur J Trauma Emerg Surg. 2011 Apr;37(2):155-9. doi: 10.1007/s00068-010-0033-x. Epub 2010 Jul 8.

Abstract

Aim: To study and identify early clinical and radiological findings that could help to predict operative intervention for small bowel obstruction.

Materials and methods: One hundred and nine consecutive patients with small bowel obstruction who underwent small bowel follow-through examination with Gastrografin(®) during 2005-2006. The patients were divided into an operative group and a non-operative group, n = 44 and 65, respectively. Findings primarily noted were those which were possible to register within 1-4 h from hospital arrival.

Results: In univariate analyses, factors found to be significantly associated with surgical intervention were no prior abdominal surgery, the presence of radiological differential air fluid levels, and absence of flatulence 24 h prior to admission, CRP > 10 mg/L and dehydration at admission. In multivariate analyses, the presence of dehydration and radiological differentiated air fluid levels were independent predictive factors of significance. Absence of all factors significantly favored non-operative treatment, while operative treatment was significantly favored when two or more factors were present.

Conclusions: The presence of two or more early predictive factors as defined above, available at admission, significantly correlates with a likelihood of complete obstruction and the need of surgical intervention.

Keywords: Differentiated air fluid levels; Predictive value; Small bowel follow-through; Small bowel obstruction.