Introduction

Renal trauma is the most frequent urological trauma, and occurs in 10 % of abdominal trauma. Data regarding long-term complications of renal trauma in the literature are scarce. The aim of this study was to report long-term complications after renal trauma and to assess their predictive factors.

Methods

A nationwide multicenter retrospective study was conducted, including all patients treated for renal trauma in 15 centers, from 2005 and 2015. Iatrogenic traumas and patients lost to follow up were excluded. Long-term complications were defined as any complications occurring more than 3 months after the trauma._x000D_

Results

Out of 1287 patients treated for renal trauma during the study period, 729 patients had long-term follow-up data available. Out of these 729 patients, 37 (5.1 %) had long-term complications. Mean delay between the initial trauma and the diagnosis of long-term complication was 16.23 months. The most common long-term complications and their prevalence are shown in table 1. Treatment of these long-term complications included four nephrectomies, three angioembolizations for renal artery pseudo-aneurysms, one ureteral stenting and 1 ureteral dilation for a ureteral stenosis. Three patients were under anti-hypertensive medications.

Conclusions

Long-term complications of renal traumas are rare but must be identified because of their potential severity. Long-term complications rate may be underestimated in this series due to the retrospective study design and the high proportion of patients lost to follow-up. Long-term urological follow-up after renal trauma might be advocated in order to identify long-term complications.

Funding

none