TY  - JOUR
TI  - ©Copyright 2022 by the Association of Urological Surgery / Journal of Urological Surgery published by Galenos Publishing House.40
Effectiveness of Second-look Flexible Ureteroscopy to Achieve A True
Stone-Free Status in Retrograde Intrarenal Surgery
AB  - Objective: Residual stone fragments remain a challenging topic for urologists following retrograde intrarenal surgery (RIRS). This study aimed to
investigate the effectiveness of second-look flexible ureteroscopy (URS) to achieve a true stone-free status and decrease stone-related events.
Materials and Methods: The study included 176 consecutive patients treated with RIRS for kidney stones between October 2013 and December
2017. Patients were divided into two groups. Group 1 included patients who underwent only one session of RIRS (n=51) and group 2 included
patients who undergo a second-look flexible URS after RIRS (n=125). Both groups were compared for stone-free rates and potential risk factors
associated with stone-related events. Stone-related events were defined as urinary infection, renal colic, stone enlargement, and any additional
intervention with shock wave lithotripsy or reoperation.
Results: Stone-free rate after RIRS for groups 1 and 2 were 37.25% (n=19/51) and 40.8% (n=51/125), respectively. The stone-free rates improved to
93.6% (n=117/125) in group 2 after the second-look flexible URS. The multivariable analysis revealed that type of intervention, stone size, and body
mass index were independent prognostic factors for stone-related events. When group 2 was taken as a reference, the odds ratio for stone-related
events was 8.48 (95% confidence interval: 2.95-24.42) in group 1.
Conclusion: Second-look flexible ureterorenoscopy increased the stone-free rates and diminished the number of stone-related events. We argue
that performing second-look flexible ureterorenoscopy in the early period following RIRS in the presence or suspicion of residual stone fragments
provides better treatment result
AU  - DİLLİOĞLUGİL, Özdal
AU  - ÇEVİK, İbrahim
AU  - ÖZKAN, Tayyar Alp
AU  - ÖZDEN CEBECİ, Oğuz
AU  - YALÇIN, Mustafa Savaş
DO  - 10.4274/jus.galenos.2021.2021.0092
PY  - 2022
JO  - Journal of Urological Surgery
VL  - 9
IS  - 1
SN  - 2148-9580
SP  - 40
EP  - 46
DB  - TRDizin
UR  - http://search/yayin/detay/516067
ER  -