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  • Title: Single-session percutaneous sclerotherapy in symptomatic simple renal cysts: long-term results.
    Author: Aribas BK, Dingil G, Doğan K, Kaya G, Unlü DN, Yilmaz K, Sahin G, Simsek Z, Demir P.
    Journal: Minerva Urol Nefrol; 2009 Jun; 61(2):129-36. PubMed ID: 19451895.
    Abstract:
    AIM: To evaluate the efficacy of single-session percutaneous sclerotherapy with needle aspiration or catheter drainage, under ultrasound (US) or computed tomography (CT) guidance, based on cyst size and depth in 22 symptomatic simple renal cysts. METHODS: Sclerotherapy with 95% alcohol for 20 min was performed in 22 symptomatic simple renal cysts in 15 patients. The method (aspiration or drainage) was chosen according to cyst size and depth: catheter drainage was done for larger (>6 cm) and shallow (<7.5 cm) cysts (N=12) and needle aspiration was done for smaller (<6 cm) or deeper (>7.5 cm) cysts (N=10). The median follow-up period was 6.0 months (range 1-62). RESULTS: Volume reduction of cysts (mean and median, respectively) was 94.1% and 97.0%. Average cyst volume reduction (mean and median, respectively) was 94.7% and 96.0% with US-guided methods and 93.3% and 99.0% with CT-guided methods (P=0.382). Median volume loss was 97.5% with needle aspiration and 96.5% with catheter drainage (P=0.839). No correlation between the groups and volume reduction was found. All procedures were successful. No major complications or recurrences were noted. CONCLUSIONS: Single-session percutaneous alcohol sclerotherapy with needle aspiration or catheter drainage, under US or CT guidance, is an effective and safe method for treating symptomatic simple renal cysts. CT-guided needle aspiration may be more suitable for treating deeper and/or smaller (<6 cm) cysts, while US-guided catheter drainage may be preferable in cases of shallow and/or larger (>6 cm) cysts.
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