Predicting the Outcome of Closed-loop Small Bowel Obstruction by Preoperative Characteristics

Overview

Journal World J Gastrointest Surg

Publisher Baishideng Publishing Group

Specialty Gastroenterology

Date 2022 Aug 18

PMID 35979424

Authors

Masja K Toneman

Bente M de Kok

Frank M Zijta

Stanley Oei

Gijs J D van Acker

Marinke Westerterp

Anne E M van der Pool

Affiliations

Soon will be listed here.

Abstract

Background: Closed-loop small bowel obstruction (CL-SBO) can threaten the viability of the intestine by obstructing a bowel segment at two adjacent points. Prompt recognition and surgery are crucial.

Aim: To analyze the outcomes of patients who underwent surgery for CL-SBO and to evaluate clinical predictors.

Methods: Patients who underwent surgery for suspected CL-BSO on computed tomography (CT) at a single center between 2013 and 2019 were evaluated retrospectively. Patients were divided into three groups by perioperative outcome, including viable bowel, reversible ischemia, and irreversible ischemia. Clinical and laboratorial variables at presentation were compared and postoperative outcomes were analyzed.

Results: Of 148 patients with CL-SBO, 28 (19%) had a perioperative viable small bowel, 86 (58%) had reversible ischemia, and 34 (23%) had irreversible ischemia. Patients with a higher age had higher risk for perioperative irreversible ischemia [odds ratio (OR): 1.03, 95% confidence interval (CI): 0.99-1.06]. Patients with American Society of Anaesthesiologists (ASA) classification ≥ 3 had higher risk of perioperative irreversible ischemia compared to lower ASA classifications (OR: 3.76, 95%CI: 1.31-10.81). Eighty-six patients (58%) did not have elevated C-reactive protein (> 10 mg/L), and between-group differences were insignificant. Postoperative in-hospital stay was significantly longer for patients with irreversible ischemia (median 8 d, = 0.001) than for those with reversible ischemia (median 6 d) or a viable bowel (median 5 d). Postoperative morbidity was significantly higher in patients with perioperative irreversible ischemia (45%, = 0.043) compared with reversible ischemia (20%) and viable bowel (4%).

Conclusion: Older patients or those with higher ASA classification had an increased risk of irreversible ischemia in case of CL-SBO. After irreversible ischemia, postoperative morbidity was increased.

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