P-198 A scoring model to predict the clinical outcome of self-expandable metal stents in patients with colorectal obstruction due to extracolonic malignancy

Self-expandable metal stents (SEMS) can be applied to relieve colorectal obstruction secondary extracolonic malignancy (ECM), but data regarding this issue is sparse. We aimed investigate the predictive factors for technical and clinical success of SEMS placement develop simple useful strategies predicting outcome in patients with due ECM. Between January 2006 December 2018, ECM who had underwent were recruited. After identifying independent placement, we developed a prediction model using logistic analysis. The was built validated training validation set, respectively. Using model, risk stratified into low-, intermediate-, high-risk groups. A total 315 identified. Overall, 282 (89.5%) achieved success, 226 (71.7%) success. Multivariate analysis showed that severe peritoneal thickening omental infiltration, soft tissue nodule ≥ 1 cm, bowel involvement length 4 serum albumin level ≤ 3.3 mg/dL independently associated higher failure placement. incorporated these an area under receiver operating characteristic curve 0.73 (95% CI 0.65–0.81) 0.71 0.60–0.82) data. Patients scores predicted 13.4%, 28.1%, 67.4%, reliable able stratify This incorporating four variables may selecting benefit from caused by