Wittmann Patch : Superior Closure for the Open Abdomen
Hannah M Nemec1, D Benjamin Christie1, Anne Montgomery1
1Department of Surgery, The Medical Center Navicent Health/Mercer University School of Medicine, Macon, GA, USA.
Introduction:
Damage control laparotomy (DCL) is a life-saving surgical technique, but the resultant open abdomen (OA) carries serious morbidity/mortality. Many methods are utilized to manage OAs, but discrepancy exists in distinguishing closure from coverage techniques. We observed a difference in our DCL patient outcomes managed with the Wittmann Patch (WP) closure device versus the more popular ABThera (AB) coverage device. We hypothesized that the WP contributed to an improved fascial closure rate of the OAs after DCL.
Methods:
A retrospective review of OAs managed with the AB or WP at our Level 1 trauma center was performed using billing codes to capture DCL patients from 2011 to 2019. Patients were divided into AB alone or WP groups. Major endpoints included primary fascial closure (PFC) and delayed fascial closure (DFC, fascial closure after greater than 7 days).
Results:
189 patients were identified as AB and 38 as WP. Rates of death before closure, age, gender, and Injury Severity Score were similar in both groups. PFC = 81%-90% for AB versus WP, respectively. Excluding patients with preexisting hernias PFC = 87%-100% for AB versus WP (P < .05) and DFC = 44%-100% for AB versus WP (P ≤ 0.001). WP had a statistically higher rate of PFC and DFC. There was a decreased incidence of complications in the WP versus AB group.
Conclusions:
While not well reported in the peer-reviewed literature, the application of the WP for management of the OA is an active form of pursuing PFC when compared with the AB, a coverage device. Our interinstitutional results have demonstrated superior PFC and DFC rates and fewer complications, in patients managed with the WP compared with the AB.
