• Prog Urol · Mar 2017

    [Management of intraparenchymal pseudoaneurysm after blunt renal trauma: Results from a series of 325 patients].

    • R Guyot, V Arnoux, J-L Descotes, N Terrier, B Boillot, C Thuillier, J-J Rambeaud, J-A Long, and G Fiard.
    • Centre hospitalo-universitaire de Clermont-Ferrand, 58, rue Montalembert, BP 69, 63003 Clermont-Ferrand cedex 1, France. Electronic address: fasol@neuf.fr.
    • Prog Urol. 2017 Mar 1; 27 (3): 190-199.

    IntroductionThe purpose was to describe the management of intraparenchymal pseudoaneurysm (PA) after blunt renal trauma in our center, and to review the cases published in the literature, in order to propose a management algorithm.Materials And MethodsWe reviewed the files of 325 patients included in a prospective database, from July, 2004, to May, 2016. A systematic review of the published cases was done with the keywords "blunt renal trauma" and "pseudoaneurysm" in Pubmed (excluding arteriovenous fistulas, open renal traumas and extraparenchymal PA) allowing us to analyze 29 extra cases. Management of these patients in our center is decribed.ResultsAmong 325 kidney trauma patients, 160 (49.3%) had grade IV and V renal trauma. Conservative management was done in 93.2%. We noted 8 cases of PA, with an incidence of 2.5%. Four patients required angioembolization. Four patients were treated by watchful waiting, with 2 cases of spontaneous occlusion, one case of absence of regression and embolization, and one case of occult hemorrhage. All PA with a favorable outcome were less than 1cm. The mean relative renal scintigraphic function at 6 months of the kidneys requiring embolization was 71.6%. The literature review reported 29 published cases, among whom 26 required embolization, with a success rate of 84.6%. Two cases were just watched, but one was finally embolized in the absence of regression.ConclusionPseudoneurysm formation after blunt renal trauma is a rare complication (2.5%). In case of clinical symptoms or hemodynamic instability, embolization allows a good renal preservation. Watchful waiting seems to be an option in asymptomatic cases with a PA less than 1cm.Level Of Evidence5.Copyright © 2017 Elsevier Masson SAS. All rights reserved.

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