Effect of renal angioembolization on post-traumatic acute kidney injury after high-grade renal trauma: A comparative study of 52 consecutive cases
Section snippets
Background
After severe trauma, acute kidney injury (AKI) is a frequent and severe complication leading to increased morbidity and mortality [1], [2], [3]. Post-traumatic AKI is a complex disorder resulting from multiple risk factors such as age, injury severity, circulatory shock, rhabdomyolysis, abdominal trauma, or exposure to contrast medium [4], [5]. After renal trauma, additional risks have been identified due to direct parenchymal or vascular injuries [6]. It has been established that renal
Study design and patients
This retrospective study was performed in the Level I Regional Trauma Center of Lapeyronie Hospital (university institution in Montpellier, France). All patients diagnosed with a renal trauma on a computer tomography (CT) scan between January 2005 and January2010 were reviewed. Those with HGRT (defined by AAST OIS ≥3) initially treated by nonoperative management were included in this present study. We have reported previously our strategy of selective angiography using CT scan criteria in this
Population and initial management
Of 101 renal traumas admitted during the study period, 43 patients with AAST-OIS grade I and II renal traumas and 6 patients with HGRTs (4 nephrectomies, 1 nephrorrhaphy and 1 early death as a result of brain injury) were excluded. Finally, 52 patients with HGRT treated by nonoperative management were included in the present study. The main characteristics of the patients are summarized in Table 2. The mean age was 33.9 (SD 18.0) years, mean ISS was 22.7 (SD 15.5), and mean SAPS II was 22.2 (SD
Discussion
In the present study, we reviewed 52 consecutive cases of HGRT treated by nonoperative management; 10 patients benefited from RAE within the first 48 h depending on their clinical status and angiographic criteria. According to the RIFLE scoring system, AKI occurred in one-third of patients at 48 h and strongly regressed in most of the patients in the following days. At discharge, almost all patients recovered normal renal function; only 5 (10%) remained with a slightly increased SCr (125–165%
Conclusion
In our study of 52 consecutive patients with HGRT managed nonoperatively, AKI defined by a RIFLE stage of Risk or worse occurred in 30% of patients within the first 48 h and was still present in 10% of patients at 96 h. Despite unavoidable ischaemic areas or contrast medium toxicity, we found that performing RAE did noticeably influence neither the onset of AKI, nor renal recovery in the following days. Aware of the retrospective nature of the study and size of cohorts, our preliminary results
Conflict of interest
The authors have no conflict of interest to declare.
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