Abstract
Purpose
To determine the incidence, injury type, injury associations, and management of patients with renal vein injuries following trauma.
Methods
This is a 10-year single-center retrospective observational study of patients with renal vein injuries identified on admission abdominopelvic CT following trauma. Our institutional trauma registry and radiology information system (RIS) was used to identify patients with renal vein injuries. The medical records and imaging exams were reviewed to determine venous injury type, associated injuries, management, and outcomes.
Results
Fifteen (15) patients with renal vein injuries (N = 9 right side) were identified out of 36,077 trauma evaluations, for an overall incidence of 0.042%. Eight (53.3%) were male with a mean age of 36.3 years (range 9–67 years) and a mean Injury Severity Score (ISS) of 32 (range 13–57). The most common imaging findings were pseudoaneurysm formation with or without intimal injury and intraluminal thrombus seen in 86.7% of the cohort. Twelve patients (80.0%) had other acute traumatic renal findings, most commonly an ipsilateral grade 4 or higher renal injury. Angiography was performed in 6 patients (40.0%), however no patients received renal vein specific endovascular evaluation, endovascular treatment, or surgical treatment of their renal vein injuries. Three patients were treated with long-term anticoagulation, of which one received an IVC filter. There were no known renal vein injury specific mortalities.
Conclusions
Renal vein injuries are an extremely rare entity but can be detected on admission CT. The most common injury patterns include an intimal injury with intraluminal thrombus and pseudoaneurysm in combination with an intimal injury and intraluminal thrombus. Conservative, nonoperative management was successfully employed in all cases with no renal vein specific mortalities.
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SDS—research grant support from the Department of the Army but unrelated to the work contained in this manuscript. The other authors declare no conflict of interest.
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Hart, K., Johnson, G. & Steenburg, S.D. Renal vein injuries: a 10-year, single institution experience with a rare injury following blunt abdominal trauma. Emerg Radiol 28, 533–539 (2021). https://doi.org/10.1007/s10140-020-01878-y
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DOI: https://doi.org/10.1007/s10140-020-01878-y