The Outcomes of Pre-Stenting on Renal and Ureteral Stones: A Meta-Analysis

2021 ◽  
pp. 1-9
Author(s):  
Han Chen ◽  
Yang Pan ◽  
Min Xiao ◽  
Jingruo Yang ◽  
Yong Wei
Keyword(s):  
Operative Time ◽  
Meta Analysis ◽  
Renal Stones ◽  
Flexible Ureteroscopy ◽  
Ureteral Stones ◽  
Ureteroscopic Lithotripsy ◽  
Stone Free Rate ◽  
Significant Difference ◽  
Meta Analyses ◽  
Free Rate

<b><i>Background:</i></b> Pre-stenting (PS) on the outcomes of semirigid and flexible ureteroscopic lithotripsy for a different upper urinary urolithiasis remains controversial. We performed a meta-analysis comparing the outcomes of ureteroscopic lithotripsy between PS and non-PS. <b><i>Materials and Methods:</i></b> Randomized, controlled trials and observational studies comparing PS and non-PS were identified from electronic databases. Stone-free rate (SFR), operative time, and complications were compared by qualitative and quantitative syntheses (meta-analyses). <b><i>Results:</i></b> Eleven articles were included in this study. Nearly, all of recently published studies exhibited relatively moderate or high quality during quality assessment. PS was more likely to achieve good SFR compared with non-PS (<i>p</i> &#x3c; 0.00001). The subgroup results indicated that PS improved the SFR for renal stones and the stones dealt by flexible ureteroscopy (<i>p</i> = 0.0002; <i>p</i> &#x3c; 0.0001, respectively; some ureteral stones were dealt by flexible ureteroscopy). Ureteral stones and the stones dealt by semirigid ureteroscopy were not influenced by PS (<i>p</i> = 0.62; <i>p</i> = 0.90, respectively). PS is equal as non-PS in terms of operative time for renal stones and the renal and ureteral stones dealt by flexible ureteroscopy (<i>p</i> = 0.47; <i>p</i> = 0.05). No significant difference was found in major complications between the 2 groups for total or for the subgroup of renal stones (<i>p</i> = 0.3; <i>p</i> = 0.69). <b><i>Conclusions:</i></b> For ureteral stones or the stones dealt by semirigid ureteroscopy, PS does not show any benefits. For renal stones or the stones dealt by flexible ureteroscopy, PS improves the SFR and may be as safe as non-PS.

scholarly journals Retrograde versus Antegrade Approach for the Management of Large Proximal Ureteral Stones

2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
Stavros Sfoungaristos ◽  
Ioannis Mykoniatis ◽  
Ayman Isid ◽  
Ofer N. Gofrit ◽  
Shilo Rosenberg ◽  
...  
Keyword(s):  
Operative Time ◽  
Fluoroscopy Time ◽  
Ureteral Stones ◽  
Ureteroscopic Lithotripsy ◽  
Antegrade Approach ◽  
Stone Free Rate ◽  
Significant Difference ◽  
Stone Characteristics ◽  
Length Of Hospitalization ◽  
Free Rate

Objective. To evaluate and compare the efficacy and safety of retrograde versus antegrade ureteroscopic lithotripsy for the treatment of large proximal ureteral stones.Patients and Methods. We retrospectively analyzed the medical records of patients with proximal ureteral stones >15 mm, treated in our institution from January 2011 to January 2016. Intraoperative parameters, postoperative outcomes, and complications were recorded and compared between the two techniques.Results. Our analysis included 57 patients. Thirty-four patients (59.6%) underwent retrograde and 23 patients (40.4%) underwent antegrade ureteroscopy. There was no significant difference in patients’ demographics and stone characteristics between the groups. Stone-free rate was significantly higher (p=0.033) in the antegrade group (100%) compared to retrograde one (82.4%). Fluoroscopy time, procedure duration, and length of hospitalization were significantly (p<0.001) lower in retrograde approach. On the other hand, the need for postoperative stenting was significantly lower in the antegrade group (p<0.001). No difference was found between the groups (p=0.745) regarding postoperative complications.Conclusions. Antegrade ureteroscopy is an efficient and safe option for the management of large proximal ureteral stones. It may achieve high stone-free rates compared to retrograde ureteroscopy with the drawback of longer operative time, fluoroscopy time, and length of hospitalization.

scholarly journals Comparison of the Efficacy of ShuoTong Ureteroscopy and Simple Flexible Ureteroscopy in the Treatment of Unilateral Upper Ureteral Calculi

2021 ◽  
Vol 8 ◽  
Author(s):  
Longhui Lai ◽  
Wenzhao Zhang ◽  
Fangjian Zheng ◽  
Tao Wang ◽  
Peide Bai ◽  
...  
Keyword(s):  
Postoperative Complications ◽  
Operative Time ◽  
Ureteral Calculi ◽  
Flexible Ureteroscopy ◽  
Ureteral Stones ◽  
Ureteral Access Sheath ◽  
Hospitalization Cost ◽  
Access Sheath ◽  
Stone Free Rate ◽  
Free Rate

Background: ShuoTong ureteroscopy (Sotn-ureteroscopy, ST-URS), a new lithotripsy operation method developed on the basis of ureteroscopy, is widely used to treat ureteral stones in China. Its composition includes rigid ureteral access sheath, standard mirror, lithotripsy mirror, and ShuoTong perfusion aspirator (ST-APM). Here, we compared the efficacy and safety of the ST-URS and the flexible ureteroscope (F-URS) holmium laser lithotripsy in the treatment of unilateral upper ureteral calculi.Methods: Retrospective analysis was conducted on the clinical data of 280 patients who met the inclusion 1) urinary tract CT was diagnosed with unilateral single upper ureteral calculi above the L4 lumbar spine; 2) patient age was from 18 to 80 years old; 3) patients were informed and consented to this study; and 4) patients were approved by the hospital ethics committee (proof number: KY-2019-020) and the exclusion criteria for unilateral upper ureteral calculi in the First Affiliated Hospital of Xiamen University from January 2018 to November 2020, and they were divided into the ST-URS group and the flexible ureteroscopy (F-URS) group.Results: The stone-free rate of 1 day after operation of the ST-URS group was significantly higher than the F-URS group (63.71 vs. 34.62%, P &lt; 0.0001). The operative time (38.45 vs. 46.18 min, P = 0.005) and hospitalization cost (27,203 vs. 33,220 Yuan, P &lt; 0.0001) of the ST-URS group were significantly lower than the F-URS group. There were no significant differences in the success rate of ureteral access sheath placement, operative blood loss, stone-free rate of 1 month after operation, postoperative complications, postoperative hospital stay, and postoperative visual analog scale (VAS) pain score between the two groups (P &gt; 0.05). In subgroups of a diameter of calculi ≥ 1.5 cm, calculi CT numerical value ≥ 1,000 Hounsfield unit and the preoperative hydronephrosis range ≥ 3.0 cm, ST-URS shows more advantages in the operative time, stone-free rate of 1 day after the operation, the hospitalization cost, and the incidence of postoperative complications.Conclusion: In unilateral upper ureteral stones treated with a holmium laser, compared with the simple F-URS, the ST-URS has a shorter operative time, lower hospitalization cost, and a higher stone-free rate of 1 day after the operation, suggesting that the ST-URS could be more widely applied in clinics.

scholarly journals USAGE OF SUPPORTING PAD FOR SUPINE PCNL: A SINGLE CENTER EXPERIENCE

2022 ◽  
Vol 29 (1) ◽  
Author(s):  
Rizky Lukman Hakim ◽  
Ponco Birowo
Keyword(s):  
Pediatric Patients ◽  
Renal Stones ◽  
Ureteral Stones ◽  
Inclusion Criteria ◽  
Single Center Experience ◽  
Stone Free Rate ◽  
Significant Difference ◽  
Effective Choice ◽  
A Prospective Study ◽  
Free Rate

Objective: This study aims to compare the safety, efficacy, and other surgical outcomes of supine PCNLs performed with and without the use of supporting pad. Material & Methods: We enrolled 27 patients who undergone PCNL procedure with supine position for renal stones with all sizes between January - December 2019. Divided into two groups, operated with and without supporting pad, with 13 and 14 patients respectively. Inclusion criteria are patients with renal stones, including staghorn, multiple calyx, and proximal ureteral stones. Meanwhile, pediatric patients under 12 years old, uncorrectable bleeding disorders, active urinary infection, and pregnancy are excluded. Results: Our observation showed no statistically significant difference between the two groups, although blood loss and length of stay in supporting pad showed better results. A statistically significant difference was found in stone-free-rate (P = 0.006) favoring in supine PCNL with supporting pad. Conclusion: Supine PCNL with support padding may be a safe and more effective choice to treat renal stones. Nevertheless, the patient’s anatomic variations may influence this. Thus, a prospective study with a larger population is needed to verify our outcomes.

scholarly journals The “no-touch” technique in the flexible ureteroscopic approach of renal stones

2021 ◽  
Vol 14 (4) ◽  
pp. 481-486
Author(s):  
Bogdan Geavlete ◽  
◽  
◽  
◽  
Cosmin Cozma ◽  
...  
Keyword(s):  
Operative Time ◽  
Renal Stones ◽  
Flexible Ureteroscopy ◽  
Significant Difference ◽  
Single Use ◽  
Group 2 ◽  
Sheath Insertion ◽  
Meta Analyses ◽  
Group 1 ◽  
Wall Lesions

Large meta-analyses demonstrated that ureteral access sheaths (UAS) have specific complications during and after flexible ureteroscopy (fURS). The present study focused on the technical aspects, advantages, drawbacks, and limitations of the latest “no-touch” technique (NTT) in the flexible ureteroscopic therapeutic approach of renal stones. A total of 288 patients with a single pyelocaliceal stone (largest diameter between 11 and 29 mm) underwent fURS: 144 using the 12/14 Fr UAS (group 1) and 144 without UAS (group 2). For NTT, we used four types of ureteroscopes: Olympus URF-V2 (8.5 Fr) – 33 cases, Storz Flex X2 (8.4 Fr) – 60 cases, single-use PUSEN PU 3022 (9.5 Fr) – 37 cases, and single-use PUSEN – PU 3033A (7.5 Fr) – 14 cases. For group 1, we used the Olympus URF–V2 ureteroscope in 44 cases, the Storz Flex X2 in 58 cases, and the single-use PUSEN PU 3022 in 42 cases. We compared the operative time, hospitalization periods, and complications. Successful access sheath insertion was noted in 83.3% of cases from group 1, and successful ureteroscope insertion was noted in 90.9% of cases from group 2. The average operative time was slightly higher in group 1 vs. group 2 (47 vs. 39 min). Stone-free rates (SFRs) were overall lower in group 2 (76.3% vs. 86.8%) at 1 month. At 3 months, we did not find a significant difference between these two groups. Superficial mucosal ureteral wall lesions were found in 38.8% of patients from group 1 and 4.1% from group 2. Hospitalization periods were longer in group 1 vs. group 2 (21 vs. 29 hours, respectively). The single-use 7.5 Fr ureteroscope should receive a special mention: the insertion was simple, we did not encounter any mucosal ureteral wall lesions, and all patients were discharged on the same day. Despite the clear advantages of routine UAS usage, there are many adverse events for the patient. Larger diameter sheaths involve a greater risk of ureteral wall injury. NTT seems to improve peri- and postoperative safety while preserving therapeutic efficiency. The new 7.5 Fr ureteroscopes appear to optimize surgical efficiency and diminish complications in the flexible ureteroscopic treatment of renal stones.

scholarly journals External validation of the T.O.HO. score and derivation of the modified T.O.HO. score for predicting stone-free status after flexible ureteroscopy in ureteral and renal stones

2021 ◽  
Author(s):  
Salih Polat ◽  
Yavuz Onur Danacioglu ◽  
Mustafa Soytas ◽  
Serkan Yarımoğlu ◽  
Omer Koras ◽  
...  
Keyword(s):  
External Validation ◽  
Predictive Performance ◽  
Renal Stones ◽  
Turkish Population ◽  
Flexible Ureteroscopy ◽  
Ureteral Stones ◽  
Stone Free Rate ◽  
Stone Characteristics ◽  
Free Rate ◽  
Free Status

Abstract The T.O.HO. scoring system was developed to predict stone-free status after flexible ureterenoscopy (fURS) lithotripsy applied for ureter and renal stones. This study aimed to perform the external validation of the T.O.HO. score in the Turkish population and propose a modification for this system. Material Methods Patients who underwent fURS for kidney and ureteral stones between January 2017 and January 2020 were retrospectively analyzed. The patient and stone characteristics and perioperative findings were noted. The T.O.HO. score was externally validated and compared with the STONE score. Stone-free parameters were evaluated with the multivariate analysis. Based on the results of this analysis, the T.O.HO. score was modified and internally validated. Results A total of 621 patients were included in the study. The stone-free rate was determined as 79.8% (496/621) after fURS. The regression analysis showed that stone area had better predictive power than stone diameter (p=0.025). Lower pole (reference), middle pole [odds ratio (OR)=0.492 p=0.016] and middle ureteral (OR=0.227, p=0.024) localizations, stone density (OR=1.001, p<0.001), and stone volume (OR = 1.008, p <0.001) were determined as independent predictive markers for stone-free status. Based on the effect size of the stone surface area in the nomogram, stone volume was divided into five categories, at 1-point intervals. The AUC values of the T.O.HO., STONE, and modified T.O.HO. score in predicting stone-free status were calculated as 0.758, 0.634, and 0.821, respectively. The modified T.O.HO. created by adding stone volume was statistically significantly superior to the original version (ROC curve comparison, p < 0.001). Conclusion The T.O.HO. score effectively predicted stone-free status after fURS. However, Modified T.O.HO. SS showed the best predictive performance compared with original T.O.HO. SS.

Flexible Ureteroscopy with Holmium Laser Lithotripsy: A New Choice for Intrarenal Stone Patients

2014 ◽  
Vol 94 (1) ◽  
pp. 93-98 ◽  
Author(s):  
Chen Xu ◽  
Ri-jin Song ◽  
Min-jun Jiang ◽  
Chao Qin ◽  
Xiao-lan Wang ◽  
...  
Keyword(s):  
Renal Stones ◽  
Laser Lithotripsy ◽  
Flexible Ureteroscopy ◽  
Stone Fragment ◽  
Stone Burden ◽  
Holmium Laser Lithotripsy ◽  
Stone Free Rate ◽  
Significant Difference ◽  
Free Rate ◽  
Free Status

Objective: To evaluate the efficiency and safety of flexible ureteroscopy (FURS) and holmium lithotripsy for intrarenal stones and to stratify the efficiency and safety by stone burdens of ≤20, 20-40, and ≥40 mm. Methods: Five hundred eighty-two patients with intrarenal stones were treated with FURS and holmium lithotripsy at a single department from August 2008 to October 2013. Stone size was evaluated by calculating the cumulative stone diameter of all intrarenal stones, and stone-free status was defined as the absence of any stone or stone fragment <1 mm in the kidney. Results: Data analysis revealed a mean stone burden of 21.8 ± 7.6 mm. The overall primary stone-free rate (SFR) was 65.3%, which increased to 89.0% 6 months after the first surgery. Complications developed in 6.7% of patients. A significant difference was found between lower-calyx stones and other stones (p < 0.001; p = 0.006), while noncalcium stones had a much higher SFR than calcium stones (p < 0.001; p = 0.04). Conclusion: Our study showed that the overall renal SFR with the use of FURS and holmium lithotripsy was satisfactory, with a relatively low complication rate. We believe that FURS with holmium lithotripsy could be a valuable choice for patients with renal stones, especially for patients with a cumulative stone burden ≤40 mm.

scholarly journals Stenting versus non-stenting following uncomplicated ureteroscopic lithotripsy: Comparsion and evaluation of symptoms

2016 ◽  
Vol 73 (9) ◽  
pp. 850-856
Author(s):  
Slavisa Savic ◽  
Vinka Vukotic ◽  
Miodrag Lazic ◽  
Natasa Savic
Keyword(s):  
Stent Placement ◽  
Ureteral Stent ◽  
Successful Outcome ◽  
Ureteral Stones ◽  
Ureteroscopic Lithotripsy ◽  
Stone Free Rate ◽  
Significant Difference ◽  
Pain Visual Analog Scale ◽  
Stented Group ◽  
Free Rate

Background/Aim. Currently, ureterorenoscopic (URS) stone fragmentation and removal is the treatment of choice for managing ureteral stones, especially mid and distal ones and is advocated as initial management of ureteric stones. The aim of this work was to evaluate the symptoms, necessity, potential benefits and adverse effects of ureteral stent placement after uncomplicated ureteroscopic lithotripsy. Methods. This retrospective-prospective study evaluated a total of 125 patients who had underwent ureteroscopic lithotripsy (URSL). The patients were divided into two groups: stented (59 patients) and unstented (controls, 66 patients). The outcomes measured and compared between the two groups included: stone free rate, postoperative patient pain validated by scale, lower urinary tract symptoms (LUTS), the need for unplanned hospital care, stent related complications, and functional recovery in the form return to normal physical activities. Results. A successful outcome, defined as being stonefree after 12 weeks, was achieved in all 125 (100%) patients. The stone-free rate showed no significant differences between the two groups. LUTS was frequent complaint in the stented group, with statistically significant difference in the domain of frequency/urgency (p = 0.0314). There was a statistically significant difference between the groups in the mean operative time and mean hospitalization time, mean pain visual analog scale (VAS) score and in the use of nonnarcotic analgesic. On the day of the surgery and until postoperative day 3 (POD 3) and postoperative day 5 (POD 5), the pain score was much higher among stented patients than among the controls (p = 0.0001) and non-narcotic analgesic use (p = 0.001) was frequently required in the stented group. Conclusion. Routine placement of ureteral stent after URSL is not mandatory and may be associated with stent side effects. Uncomplicated URSL is safe without stent placement after the treatment.

scholarly journals Efficacy and safety of laparoscopic pyelolithotomy versus percutaneous nephrolithotomy for treatment of large renal stones: a meta-analysis

2021 ◽  
Vol 49 (1) ◽  
pp. 030006052098313
Author(s):  
Tie Mao ◽  
Na Wei ◽  
Jing Yu ◽  
Yinghui Lu
Keyword(s):  
Blood Transfusion ◽  
Blood Loss ◽  
Percutaneous Nephrolithotomy ◽  
Meta Analysis ◽  
Renal Stones ◽  
Efficacy And Safety ◽  
Complementary Treatment ◽  
Laparoscopic Pyelolithotomy ◽  
Stone Free Rate ◽  
Free Rate

Background We aimed to compare the efficacy and safety of laparoscopic pyelolithotomy (LPL) versus percutaneous nephrolithotomy (PCNL) for treating renal stones larger than 2 cm. Methods We searched the PubMed, Embase, Web of Science, SinoMed, and Chinese National Knowledge Infrastructure databases for studies that compared the surgical outcomes of LPL and PCNL. We conducted a meta-analysis of the retrieved studies, expressed as weighted mean difference or risk ratios with 95% confidence intervals. Results We included 25 studies (1831 patients). LPL was associated with a significantly higher stone-free rate, lower rates of blood loss, complementary treatment, blood transfusion, and complications, and less reduction in hemoglobin level compared with PCNL. LPL and PCNL were similar in terms of duration of hospital stay, conversion rate, changes in glomerular filtration rate and creatinine level, and mean time of postoperative analgesia. However, LPL was associated with a longer operation time than PCNL. Conclusion LPL appears to be more effective and safer than PCNL in patients with large renal stones, by increasing the stone-free rate and reducing blood loss, complementary treatment, blood transfusion, and complications compared with PCNL. LPL may thus be a useful modality for treating patients with large renal stones.

scholarly journals Flexible Ureteroscopy Can Be More Efficacious in the Treatment of Proximal Ureteral Stones in Select Patients

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Erdal Alkan ◽  
Ali Sarıbacak ◽  
Ahmet Oguz Ozkanli ◽  
Mehmet Murad Basar ◽  
Oguz Acar ◽  
...  
Keyword(s):  
Operative Time ◽  
Flexible Ureteroscopy ◽  
Ureteral Stones ◽  
Significant Difference ◽  
Ureteral Avulsion ◽  
Group 2 ◽  
Stone Characteristics ◽  
Ureteral Rupture ◽  
Treatment Procedures ◽  
Group 1

Purpose. We aimed to compare and evaluate the outcomes and complications of two endoscopic treatment procedures, semirigid ureteroscopy (SR-URS) and flexible ureteroscopy (F-URS), in the treatment of proximal ureteral stones (PUS).Methods. SR-URS (group 1) was done on 68 patients whereas 64 patients underwent F-URS (group 2) for the treatment of PUS. Success rate was defined as the absence of stone fragments or presence of asymptomatic insignificant residual fragments < 2 mm. Outcomes and complications were recorded.Results. The differences were statistically not significant in age, gender, body mass index (BMI), and stone characteristics between groups. Mean ureteral stone size was 9.1 ± 0.4 mm and 8.9 ± 0.5 mm for groups 1 and 2. Mean operative time was 34.1 ± 1.5 min and 49.4 ± 2.3 min for groups 1 and 2 (p=0.001). SFRs were 76.5% and 87.5% for groups 1 and 2 (p=0.078). Two major complications (ureteral avulsion and ureteral rupture) occurred in group 1.Conclusion. F-URS is safer and less invasive than SR-URS in patients with PUS. There is no statistically significant difference in the efficacy of either technique. Nonetheless we recommend F-URS in the management of PUS as a first-line treatment option in select cases of proximal ureteral calculi.

Sign in / Sign up

Export Citation Format

Share Document