Batuhan Ergani1, Mert Hamza Ozbilen2, Mehmet Yigit Yalcın2, Hayal Boyacıoglu3, Yusuf Ozlem Ilbey2. 1. Beyhekim State Hospital, Urology Clinic Konya, Turkey. 2. University Of Health Sciences Tepecik Training and Research Hospital Urology Clinic Izmir, Turkey. 3. Ege University Faculty of Science, Department of Statistics Izmir, Turkey.
Abstract
OBJECTIVE: Hydronephrosis, which may be caused by kidney stones in the collecting system, may induce permanent flank pain and damage to kidney function. In this study, we aimed to examine whether the presence of hydronephrosis in the patient has an effect on the stone-free rates in flexible ureterorenoscopy (FURS) applications. METHOD: The study was carried out retrospectively with 164 patients. Stone size was calculated as volume in computed tomography. Preoperative patient demographic data, radiographic stone characteristics, operational findings, complication status and postoperative 1st month results were recorded. RESULT: The mean stone-free rate was found to be 61.5%. It was determined that age, gender, side, number, size and the Hounsfield Unit of the stone, the presence of preoperative extracorporeal shock wave lithotripsy (ESWL) history and the presence of hydronephrosis and its degree did not affect the stone-free rate. However, it was concluded that preoperative percutaneous nephrolithotomy (PNL) application and prolonged operation time were found to affect statistically significant stone-free rate. In addition, '2' was found to be the cut-off value for hydronephrosis in the receiver operating characteristic analysis. CONCLUSION: The presence of preoperative hydronephrosis does not decrease the success of FURS. However, it can be expected that the success of FURS will decrease as grade 2 or more severe grade of hydronephrosis. Therefore, we think that other treatment modalities such as ESWL and PNL should be prioritized in patients with grade 2 and more severe grade of hydronephrosis. AJCEU
OBJECTIVE:Hydronephrosis, which may be caused by kidney stones in the collecting system, may induce permanent flank pain and damage to kidney function. In this study, we aimed to examine whether the presence of hydronephrosis in the patient has an effect on the stone-free rates in flexible ureterorenoscopy (FURS) applications. METHOD: The study was carried out retrospectively with 164 patients. Stone size was calculated as volume in computed tomography. Preoperative patient demographic data, radiographic stone characteristics, operational findings, complication status and postoperative 1st month results were recorded. RESULT: The mean stone-free rate was found to be 61.5%. It was determined that age, gender, side, number, size and the Hounsfield Unit of the stone, the presence of preoperative extracorporeal shock wave lithotripsy (ESWL) history and the presence of hydronephrosis and its degree did not affect the stone-free rate. However, it was concluded that preoperative percutaneous nephrolithotomy (PNL) application and prolonged operation time were found to affect statistically significant stone-free rate. In addition, '2' was found to be the cut-off value for hydronephrosis in the receiver operating characteristic analysis. CONCLUSION: The presence of preoperative hydronephrosis does not decrease the success of FURS. However, it can be expected that the success of FURS will decrease as grade 2 or more severe grade of hydronephrosis. Therefore, we think that other treatment modalities such as ESWL and PNL should be prioritized in patients with grade 2 and more severe grade of hydronephrosis. AJCEU
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