P108 SARCOPENIA INCREASES THE RISK OF BURST ABDOMEN AFTER EMERGENCY MIDLINE LAPAROTOMY: A MATCHED CASE-CONTROL STUDY

Aim The aim of this study was to investigate the association of sarcopenia with the risk of burst abdomen after midline laparotomy. Material and Methods A single-center, retrospective, 1:4 matched case-control study of patients suffering from burst abdomen (cases) and controls. Sarcopenia was defined as lowest sex-dependent quartile of total cross-sectional psoas area adjusted for body surface area. Primary outcome was to evaluate the rate of sarcopenic patients among cases and controls. Secondary, risk-factors for burst abdomen and postoperative death, were evaluated by multivariate regression analysis. Results 67 patients suffering from burst abdomen were matched to 268 controls. Sarcopenia was associated with burst abdomen (OR 2.3, p = 0.006). Unadjusted analysis identified a higher 90-day mortality among sarcopenic patients compared to the non-sarcopenia group (32.9% vs. 21.1%, p = 0.029) but this association was not verified by the adjusted analysis. Conclusions Sarcopenia is an isolated risk-factor for burst abdomen after midline laparotomy.