1. Do we need repeated CT imaging in uncomplicated blunt renal injuries? Experiences of a high-volume urological trauma centre.
- Author
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Lindner, Andrea Katharina, Luger, Anna Katharina, Fritz, Josef, Stäblein, Johannes, Radmayr, Christian, Aigner, Friedrich, Rehder, Peter, Tulchiner, Gennadi, Horninger, Wolfgang, and Pichler, Renate
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KIDNEY radiography ,KIDNEY injuries ,EVALUATION of medical care ,DISEASE progression ,BLUNT trauma ,TRAUMA centers ,ATTITUDES of medical personnel ,TIME ,PATIENTS ,RETROSPECTIVE studies ,ACQUISITION of data ,SPORTS injuries ,KIDNEY diseases ,REOPERATION ,EMERGENCY medical services ,MEDICAL records ,DESCRIPTIVE statistics ,COMPUTED tomography ,UROLOGICAL surgery ,UROLOGY ,SYMPTOMS - Abstract
Background: Current guidelines recommend repeat computed tomography (CT) imaging in high-grade blunt renal injury within 48–96 h, yet diagnostic value and clinical significance remain controversial. The aim of this work was to determine the possible gain of CT re-imaging in uncomplicated patients with blunt renal trauma at 48 h after injury, presenting one of the largest case series. Methods: A retrospective database of patients admitted to our centre with isolated blunt renal trauma due to sporting injuries was analysed for a period of 20 years (2000–2020). We included only patients who underwent repeat imaging at 48 h after trauma irrespective of AAST renal injury grading (grade 1–5) and initial management. The primary outcome was intervention rates after CT imaging at 48 h in uncomplicated patients versus CT scan at the time of clinical symptoms. Results: A total of 280 patients (mean age: 37.8 years; 244 (87.1%) male) with repeat CT after 48 h were included. 150 (53.6%) patients were classified as low-grade (grade 1–3) and 130 (46.4%) as high-grade (grade 4–5) trauma. Immediate intervention at trauma was necessary in 59 (21.1%) patients with high-grade injuries: minimally invasive therapy in 48 (81.4%) and open surgery in 11 (18.6%) patients, respectively. In only 16 (5.7%) cases, intervention was performed based on CT re-imaging at 48 h (low-grade vs. high-grade: 3.3% vs. 8.5%; p = 0.075). On the contrary, intervention rate due to clinical symptoms was 12.5% (n = 35). Onset of clinical progress was on average (range) 5.3 (1–17) days post trauma. High-grade trauma (odds ratio [OR]
grade 4 vs. grade 3 , 14.62; p < 0.001; ORgrade 5 vs. grade 3 , 22.88, p = 0.004) and intervention performed at the day of trauma (OR 3.22; p = 0.014) were powerful predictors of occurrence of clinical progress. Conclusion: Our data suggest that routine CT imaging 48 h post trauma can be safely omitted for patients with low- and high-grade blunt renal injury as long as they remain clinically stable. Patients with high-grade renal injury have the highest risk for clinical progress; thus, close surveillance should be considered especially in this group. [ABSTRACT FROM AUTHOR]- Published
- 2022
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