Outcomes of ureterolysis for primary retroperitoneal fibrosis: A single-center experience

Ali Cansu Bozaci, Mesut Altan, Hakan Bahadir Haberal, Emrullah Söğütdelen, Fazil Tuncay Aki, İlhan Erkan
International Journal of Urology: Official Journal of the Japanese Urological Association 2021 January 21

OBJECTIVE: To report our experience with ureterolysis for the management of retroperitoneal fibrosis.

METHODS: The data of 25 patients who underwent ureterolysis due to primary retroperitoneal fibrosis between 2002 and 2017 were reviewed retrospectively. Initial symptoms, laterality, renal function status (initial/final), operation complications and serum creatinine levels (diagnosis/preoperative/6 months, 12 months postoperatively) were recorded. After surgery, patients were followed up by ultrasonography and serum creatinine levels. Patients with impaired results underwent furosemide renogram and/or late phase of computed tomography. Factors affecting final serum creatinine levels were evaluated. The χ2 -test was used for nominal data among groups. The level of statistical significance was set as P < 0.05.

RESULTS: A total of 19 patients (76%) were operated bilaterally. The mean follow-up period was 46.2 ± 9.2 months. Among 44 operated renal units, non-functioning kidney developed in seven (15.9%). A total of 34 renal units (77.3%) did not require any additional surgical intervention, and two underwent balloon dilatation (4.5%), one (2.25%) followed with double J stent changes. Two patients developed end-stage renal disease secondary to bilateral unresolved obstruction. High final serum creatinine levels developed in eight (32%) patients without dialysis. Eight patients (32%) were treated with immunosuppressive therapy for systemic recurrence. There was a significant relationship between preoperative serum creatinine levels with final serum creatinine levels (P = 0.005). There was no statistically significant relationship between diagnosis serum creatinine levels with final serum creatinine levels and postoperative dialysis requirement (P = 0.79 and P = 0.817, respectively).

CONCLUSIONS: Ureterolysis provides acceptable success with low complication rates in patients with retroperitoneal fibrosis. Preoperative high-serum creatinine levels can be considered as a risk factor for long-term renal impairment and these patients should be followed closely.

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