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The Associations Between Initial Radiographic Findings and Interventions for Renal Hemorrhage After High-Grade Renal Trauma: Results from the Multi-institutional Genito-Urinary Trauma Study (MiGUTS). J Trauma Acute Care Surg 2019 Mar 08

Date

03/14/2019

Pubmed ID

30865158

DOI

10.1097/TA.0000000000002254

Scopus ID

2-s2.0-85066633626   8 Citations

Abstract

BACKGROUND: Indications for intervention after high-grade renal trauma (HGRT) remain poorly defined. Certain radiographic findings can be used to guide the management of HGRT. We aimed to assess the associations between initial radiographic findings and interventions for hemorrhage after HGRT and to determine hematoma and laceration sizes predicting interventions.

METHODS: The Genito-Urinary Trauma Study is a multi-center study including HGRT patients from 14 Level-1 trauma centers from 2014-2017. Admission CT scans were categorized based upon multiple variables, including vascular contrast extravasation (VCE), hematoma rim distance (HRD), and size of the deepest laceration. Renal bleeding interventions included: angioembolization, surgical packing, renorrhaphy, partial nephrectomy, and nephrectomy. Mixed effect Poisson regression was used to assess the associations. Receiver operating characteristic analysis was used to define optimal cut-offs for HRD and laceration size.

RESULTS: In the 326 patients, injury mechanism was blunt in 81%. Forty-seven patients (14%) underwent 51 bleeding interventions including 19 renal angioembolizations, 16 nephrectomies, and 16 other procedures. In univariable analysis, presence of VCE was associated with a 5.9-fold increase in risk of interventions, and each centimeter increase in HRD was associated with 30% increase in risk of bleeding interventions. An HRD ≥3.5cm and renal laceration depth of ≥2.5cm were most predictive of interventions. In multivariable models, VCE and HRD were significantly associated with bleeding interventions.

CONCLUSION: Our findings support the importance of certain radiographic findings in prediction of bleeding interventions after HGRT. These factors can be used as adjuncts to renal injury grading to guide clinical decision making.

LEVEL OF EVIDENCE: Prognostic and Epidemiological Study, Level III.

Author List

Keihani S, Putbrese BE, Rogers DM, Zhang C, Nirula R, Luo-Owen X, Mukherjee K, Morris BJ, Majercik S, Piotrowski J, Dodgion CM, Schwartz I, Elliott SP, DeSoucy ES, Zakaluzny S, Sherwood BG, Erickson BA, Baradaran N, Breyer BN, Fick CN, Smith BP, Okafor BU, Askari R, Miller B, Santucci RA, Carrick MM, Kocik JF, Hewitt T, Burks FN, Heilbrun ME, Myers JB, in conjunction with the Trauma and Urologic Reconstruction Network of Surgeons

Author

Christopher M. Dodgion MD Associate Professor in the Surgery department at Medical College of Wisconsin