RT Journal Article SR Electronic T1 A core outcome set for damage control laparotomy via modified Delphi method JF Trauma Surgery & Acute Care Open JO Trauma Surg Acute Care Open FD BMJ Publishing Group Ltd SP e000821 DO 10.1136/tsaco-2021-000821 VO 7 IS 1 A1 Saskya Byerly A1 Jeffry Nahmias A1 Deborah M Stein A1 Elliott R Haut A1 Jason W Smith A1 Rondi Gelbard A1 Markus Ziesmann A1 Melissa Boltz A1 Ben L Zarzaur A1 Miklosh Bala A1 Andrew Bernard A1 Scott Brakenridge A1 Karim Brohi A1 Bryan Collier A1 Clay Cothren Burlew A1 Michael Cripps A1 Bruce Crookes A1 Jose J Diaz A1 Juan Duchesne A1 John A Harvin A1 Kenji Inaba A1 Rao Ivatury A1 Kevin Kasten A1 Jeffrey D. Kerby A1 Margaret Lauerman A1 Tyler Loftus A1 Preston R. Miller A1 Thomas Scalea A1 D Dante Yeh YR 2022 UL http://tsaco.bmj.com/content/7/1/e000821.abstract AB Objectives Damage control laparotomy (DCL) remains an important tool in the trauma surgeon’s armamentarium. Inconsistency in reporting standards have hindered careful scrutiny of DCL outcomes. We sought to develop a core outcome set (COS) for DCL clinical studies to facilitate future pooling of data via meta-analysis and Bayesian statistics while minimizing reporting bias.Methods A modified Delphi study was performed using DCL content experts identified through Eastern Association for the Surgery of Trauma (EAST) ‘landmark’ DCL papers and EAST ad hoc COS task force consensus.Results Of 28 content experts identified, 20 (71%) participated in round 1, 20/20 (100%) in round 2, and 19/20 (95%) in round 3. Round 1 identified 36 potential COS. Round 2 achieved consensus on 10 core outcomes: mortality, 30-day mortality, fascial closure, days to fascial closure, abdominal complications, major complications requiring reoperation or unplanned re-exploration following closure, gastrointestinal anastomotic leak, secondary intra-abdominal sepsis (including anastomotic leak), enterocutaneous fistula, and 12-month functional outcome. Despite feedback provided between rounds, round 3 achieved no further consensus.Conclusions Through an electronic survey-based consensus method, content experts agreed on a core outcome set for damage control laparotomy, which is recommended for future trials in DCL clinical research. Further work is necessary to delineate specific tools and methods for measuring specific outcomes.Level of evidence V, criteriaAll data relevant to the study are included in the article or uploaded as supplementary information.