Tadalafil versus alpha blockers (alfuzosin, doxazosin, tamsulosin and silodosin) as medical expulsive therapy for < 10 mm distal and proximal ureteral stones

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Serdar Çelik *
Firat Akdeniz
Muge Afsar Yildirim
Ozan Bozkurt
Merve Gursoy Bulut
Mehmet Levent Hacihasanoglu
Omer Demir
(*) Corresponding Author:
Serdar Çelik | serdarcelik84@hotmail.com

Abstract

Objectives: To evaluate the effect of tadalafil compared with four alpha blockers (alfuzosin, doxazosin, tamsulosin and silodosin) as medical expulsive treatment for ureteral stones in male adults.
Materials and methods: Male adults who were admitted to urology clinic with flank pain and diagnosed with non complicated < 10 mm ureteral stone on non-contrast computed tomography (NCCT) between June 2014-September 2015 were retrospectively evaluated. A total of 273 patients with ureteral stone were divided into five groups. Alfuzosin 10 mg/daily, doxazosin 8 mg/daily, tamsulosin 0.4 mg/daily, silodosin 8 mg/daily and tadalafil 5 mg/daily for 6 weeks were prescribed respectively. Stone localization, diameter, volume and Hounsfield units were noted as NCCT findings. The patients were divided into the two groups based on their stone localization as distal and mid-proximal stones. These two groups were evaluated separately. Expulsion rate were noted at the end of 6 weeks. NCCT and treatment findings were compared between five drug groups in distal and mid-proximal stones separately.
Results: Age was higher in tadalafil group in distal stones (p = 0.032). Expulsion rate was found 78.1% for alfuzosin, 75.7% for doxazosin, 76.5% for tamsulosin, 88.6% for silodosin and 90% for tadalafil in distal (p = 0.44) and 21.7%, 30%, 30%, 30% and 54.5% in mid-proximal stones (p = 0.034) respectively.
Conclusions: Expulsion rate was higher in silodosin and tadalafil for distal ureteral stones but the difference didn’t meet statistical significance. However the expulsion rate was significantly higher in tadalafil than in the other groups for mid-proximal ureteral stones. The result of this study showed that tadalafil may increases ureteric stone expulsion.

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