Flexible Ureterorenoscopy for Renal and Proximal Ureteral Stone in Patients with Previous Ureteral Stenting: Impact on Stone-Free Rate and Morbidity

2016 ◽  
Vol 30 (10) ◽  
pp. 1084-1088 ◽  
Author(s):  
Jean-François Dessyn ◽  
Loïc Balssa ◽  
Eric Chabannes ◽  
Baptiste Jacquemet ◽  
Stéphane Bernardini ◽  
...  
Keyword(s):  
Ureteral Stone ◽  
Flexible Ureterorenoscopy ◽  
Stone Free Rate ◽  
Ureteral Stenting ◽  
Proximal Ureteral Stone ◽  
Free Rate

427 Preoperative ureteral stenting is associated with higher stone-free rate after flexible ureterorenoscopy for urinary lithiasis

2013 ◽  
Vol 12 (1) ◽  
pp. e427 ◽  
Author(s):  
J.F. Dessyn ◽  
P. Pillot ◽  
N. Bardonnaud ◽  
G. Guichard ◽  
S. Bernardini ◽  
...  
Keyword(s):  
Flexible Ureterorenoscopy ◽  
Urinary Lithiasis ◽  
Stone Free Rate ◽  
Ureteral Stenting ◽  
Free Rate

scholarly journals Flexible ureterorenoscopy in position or fusion anomaly: Is it feasible?

2017 ◽  
Vol 63 (8) ◽  
pp. 685-688 ◽  
Author(s):  
Rafael Haddad Astolfi ◽  
Gustavo Freschi ◽  
Fernando Figueiredo Berti ◽  
Nelson Gattas ◽  
Wilson Rica Molina Junior ◽  
...  
Keyword(s):  
Kidney Stones ◽  
Perioperative Complications ◽  
Horseshoe Kidney ◽  
Renal Calculi ◽  
Flexible Ureterorenoscopy ◽  
Renal Anomalies ◽  
Stone Free Rate ◽  
Perioperative Complication ◽  
The Mean ◽  
Free Rate

Summary Objective: To analyze the results of flexible ureterorenoscopy (F-URS) with holmium laser in the treatment of kidney stones with ectopic and fusion anomalies (horseshoe kidney and rotation anomalies). Method: We reviewed data from 13 patients with fusion and ectopic renal anomalies that underwent F-URS from April 2011 to April 2017. We analyzed demographic and clinical data (age, gender, BMI, anatomical abnormality, location and dimension of the renal calculi) and perioperative data (method of treatment, stone-free rate, number of days with DJ catheter and perioperative complications). Results: The mean stone size was 12.23 +/- 5.43 mm (range 6-22mm), located in the inferior (58.33%) and middle (16.76%) calyceal units, renal pelvis (16.67%) and multiple locations (8.33%). All 13 patients were treated with Ho-Yag laser, using dusting technique (25%), fragmentation and extraction of the calculi (58.33%) and mixed technique (16.67%). We did not have any severe perioperative complication. After 90 days, nine patients (75%) were considered stone free. Conclusion: Our data suggest that F-URS is a safe and feasible choice for the treatment of kidney stones in patients with renal ectopic and fusion anomalies.

scholarly journals Flexible ureteroscopy for renal stone without preoperative ureteral stenting shows good prognosis

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2728 ◽  
Author(s):  
Jiaqiao Zhang ◽  
Chuou Xu ◽  
Deng He ◽  
Yuchao Lu ◽  
Henglong Hu ◽  
...  
Keyword(s):  
Renal Stone ◽  
Operation Time ◽  
Renal Stones ◽  
Renal Calculi ◽  
Good Prognosis ◽  
Flexible Ureteroscopy ◽  
Stone Free Rate ◽  
Ureteral Stenting ◽  
Free Rate

Purpose To clarify the outcome of flexible ureteroscopy (fURS) for management of renal calculi without preoperative stenting. Methods A total of 171 patients who received 176 fURS procedures for unilateral renal stones were reviewed. All procedures were divided into two groups depending on whether they received ureteral stenting preoperatively. Baseline characteristics of patients, stone burden, operation time, stone-free rates, and complications were compared between both groups. Results Successful primary access to the renal pelvis was achieved in 104 of 114 (91.2%) patients without preoperative stenting, while all procedures with preoperative stenting (n = 62) were successfully performed. A total of 156 procedures were included for further data analysis (56 procedures in stenting group and 100 in non-stenting group). No significant differences was found regardless of a preoperative stent placement in terms of stone-free rate (73.2% with stenting vs. 71.0% without, P = 0.854), operative time (70.4 ± 32.8 with stenting vs. 70.2 ± 32.1 without, P = 0.969). Conclusions fURS for management of renal stone without preoperative ureteral stenting are associated with well outcome in short term follow-up. Our study may help patients and doctors to decide if an optional stent is placed or not.

scholarly journals The stone density does not affect the stone-free rate of kidney pelvic stones (2-3 cm) treated with flexible ureterorenoscopy

2020 ◽  
Author(s):  
Yao Bai ◽  
Sheng Hu ◽  
Yuanqing Dai ◽  
Xiong Chen ◽  
Xiaobo Zhang ◽  
...  
Keyword(s):  
Flexible Ureterorenoscopy ◽  
Stone Free Rate ◽  
Stone Density ◽  
Free Rate

Abstract The authors have withdrawn this preprint due to author disagreement.

scholarly journals Predictive factors of stone-free status in renal stone treatment with flexible ureterorenoscopy

2021 ◽  
Vol 42 (1) ◽  
pp. 21-26
Author(s):  
Suppasek Pattarawongpaiboon ◽  
◽  
Manint Usawachintachit ◽  
Keyword(s):  
Renal Stone ◽  
Univariate Analysis ◽  
Medium Size ◽  
P Value ◽  
Lower Pole ◽  
Flexible Ureterorenoscopy ◽  
Stone Burden ◽  
Stone Free Rate ◽  
Free Rate ◽  
Free Status

Objective: Flexible ureterorenoscopy (fURS) is one of the standard treatments for renal calculi up to 20 mm. This study aims to identify factors associated with stone-free status. Materials and Methods: We included patients undergoing fURS for treatment of small to medium-size renal stone (no single stone larger than 20 mm) from April 2017 to September 2019 at King Chulalongkorn Memorial Hospital. All patients had a preoperative CT scan and postoperative imaging for comparison. We collected patient characteristics (sex, age, previous ipsilateral urinary tract surgery, preoperative ureteral stent placement), stone factors (total stone burden, stone number, stone density) and renal factors (anatomical abnormalities, stone location in a lower pole, number of caliceal involvement) and correlated the data against postoperative stone-free status (defined as residual fragment ≤ 2 mm). Results: The overall stone-free rate was 53.3%. From the univariate analysis, previous surgery, total stone burden, stone number, stone location in the lower pole, and the number of caliceal involvement were associated with stone-free status. However, only the total stone burden remained statistically significant in the multivariate analysis (p-value < 0.05). The stone-free rates were 75.9%, 57.1%, and 11.1% in the total stone burden ≤ 10 mm, 11-20 mm, > 20 mm, respectively. Conclusion: Following treatment of renal stones ≤ 20 mm with fURS, the stone-free rate was 53.3% and was significantly associated with the preoperative total stone burden.

scholarly journals Comparison of Fragmentation and Dusting Laser Modes for Laser Ureteroscopy Lithotripsy of Ureteral Stones at a Single Center

2021 ◽  
Author(s):  
Bo-Han Chen ◽  
Tsu-Feng Lin ◽  
Marcelo Chen ◽  
Allen W. Chiu
Keyword(s):  
Multivariate Analysis ◽  
Ureteral Stone ◽  
Medical Center ◽  
Demographic Data ◽  
Ureteral Stones ◽  
Single Center ◽  
Laser Mode ◽  
Stone Free Rate ◽  
Laser Modes ◽  
Free Rate

Abstract Background Laser ureteroscopic lithotripsy (URSL) is an efficacious treatment for ureteral stones. There have been few previous studies compared the different energy and frequency settings for URSL in a single center. The fragmentation and dusting laser mode were simultaneously used in our medical center. We compared the efficacy and outcomes of these two laser modalities for the treatment of ureteral stones.Methods Patients who underwent fragmentation or dusting laser URSL for ureteral stones were retrospectively reviewed. The demographic data, stone parameters, perioperative data and stone-free rates were analyzed between the two groups.Results There were a total of 421 patients with ureteral stones who met the study criteria. More patients in the dusting group had multiple ureteral stones and pyuria than in the fragmentation group. The fragmentation group had a better stone free rate and a lower push back rate compared with the dusting group. (82% vs. 71%; 10% vs. 20% respectively, both p<0.05). Multivariate analysis revealed that stone basket use (odds ratio [OR] = 3.026; p<0.001) significantly improved the stone free rate, whereas multiple stones (OR=0.322; p <0.001), upper ureteral stone location (OR=0.098; p=0.002) and pyuria (OR=0.428; p=0.001) significantly decreased the stone free rate. The laser mode used was not significantly related to the stone free rate in the multivariate analysis.Conclusions Both laser modes were effective and safe for ureteral lithotripsy. Risk factors associated with a lower stone free rate were multiple stones, pyuria, upper ureteral stone location and an operation without the use of a stone basket.

Simple and practical nomograms for predicting the stone-free rate after shock wave lithotripsy in patients with a solitary upper ureteral stone

2017 ◽  
Vol 35 (9) ◽  
pp. 1455-1461 ◽  
Author(s):  
Naoya Niwa ◽  
Kazuhiro Matsumoto ◽  
Makoto Miyahara ◽  
Minami Omura ◽  
Hiroaki Kobayashi ◽  
...  
Keyword(s):  
Shock Wave ◽  
Shock Wave Lithotripsy ◽  
Ureteral Stone ◽  
Stone Free Rate ◽  
Free Rate
Sign in / Sign up

Export Citation Format

Share Document