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Urol J. 2016 Mar 5;13(1):2490-5.

Treatment of Moderate Sized Renal Pelvis Calculi: Stone Clearance Time Comparison of Extracorporeal Shock Wave Lithotripsy and Retrograde Intrarenal Surgery.

Author information

1
Department of Urology, Ministry of Health, Numune Teaching and Research Hospital, Adana, Turkey. hakanercil@yahoo.com.
2
Department of Urology, Ministry of Health, Numune Teaching and Research Hospital, Adana, Turkey.
3
Department of Urology, Ministry of Health, Abdurrahman Yurtarslan Onkoloji Teaching and Research Hospital, Ankara, Turkey.
4
Department of Urology, Baskent University Adana Medical and Research Center, Adana, Turkey.

Abstract

PURPOSE:

To compare the stone clearance times in patients undergoing extracorporeal shock wave lithotripsy (SWL) or retrograde intrarenal surgery (RIRS) for single radiopaque renal pelvis stones 10-20 mm in size. The results of this study may guide urologists and patients and aid in selecting the optimal preoperative treatment.

MATERIALS AND METHODS:

Between January 2013 and February 2015, we conducted a retrospective study and collected data from 333 patients treated with SWL (n = 172) or RIRS (n = 161). We included successfully treated patients with a single radiopaque renal pelvis stone 10-20 mm in size to calculate stone clearance times.

RESULTS:

The average stone size for the SWL group was 14.62 ± 2.58 mm and 14.91 ± 2.92 mm for the RIRS group. The mean Hounsfield unit (HU) of the patients was 585.40 ± 158.39 HU in the SWL group and 567.74 ± 186.85 HU in the RIRS group. Following full fragmentation, the mean stone clearance time was 26.55 ± 9.71 days in the SWL group and 11.59 ± 7.01 days in the RIRS group (P < .001).

CONCLUSION:

One of the most overlooked parameters in urinary stone treatments is stone clearance. We believe this study will shed light for those who aim to conduct larger randomized prospective studies.&nbsp.

PMID:
26945652
[Indexed for MEDLINE]
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