SynthesisWorld journal of urology2022
Role of pre-operative ureteral stent on outcomes of retrograde intra-renal surgery (RIRS): systematic review and meta-analysis of 3831 patients and comparison of Asian and non-Asian cohorts.
Synthesis in World journal of urology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
30 citing papers in PubMed, 2 syntheses or guidelines pooled it, 44 citations in OpenAlex.
- Thulium fiber laser versus holmium: YAG laser for ureteroscopic lithotripsy of ureteral stones: a systematic review and meta-analysis.World journal of urology · 2026Pooled it
- Safety and effectiveness of preoperative stenting compared to non-stenting in ureteroscopy for urinary stone disease: a meta-analysis of comparative studies.World journal of urology · 2024Pooled it
- The effect of prestenting on the success rates of endourological stone surgery in children.World journal of urology · 2026Article
- Preoperative JJ stenting vs. percutaneous nephrostomy vs. primary flexible ureteroscopy in patients with proximal ureteral stones: a RIRSearch study with case-control matching.World journal of urology · 2026Article
- Outpatient versus inpatient flexible ureteroscopy with flexible and navigable suction access sheath: A multicenter comparative analysis of perioperative outcomes from the flexible and navigable access sheath collaborative study group.Asian journal of urology · 2026Article
- The impact of preoperative CT-based 3D visualization model on ureteric access sheath placement failure without pre-stenting.BMC urology · 2026Article
- Clinical risk factors and machine learning-assisted interpretation of ureteral access sheath insertion failure: a multicenter study and meta-analysis.Frontiers in surgery · 2026Article
- Review
- In-vitro deflection comparison of 3 Flexible and Navigable Suction Ureteral Access Sheaths (FANS) of 2 sizes across 7.5Fr single-use flexible ureteroscopes: an AUSET-EAU endourology collaboration.World journal of urology · 2025Article
- In vitro suction comparison of 3 flexible and navigable suction ureteral access sheaths (FANS) of 2 sizes using a 7.5Fr single-use flexible ureteroscope: an AUSET-EAU endourology collaboration.World journal of urology · 2025Article
- Impact of preoperative stenting in management of bilateral ureteral stones.International urology and nephrology · 2025Article
- Letter to the editor for the article "Clinical study of UMP and RIRS in 1.0-2.0 cm diameter renal/upper ureteral calculi".World journal of urology · 2025Article
- The utility of flexible and navigable suction access sheath (FANS) in patients undergoing same session flexible ureteroscopy for bilateral renal calculi: a global prospective multicenter analysis by EAU endourology.World journal of urology · 2025Article
- Clinical outcomes of an intelligent pressure-controlled disposable ureteroscope for Laser lithotripsy in renal stone surgery: a retrospective matched cohort study.Frontiers in surgery · 2025Article
- Influence of pre-stenting on flexible and navigable suction (FANS) access sheath outcomes. Results of a prospective multicentre study by the EAU Section of Endourology and the global FANS collaborative group.Central European journal of urology · 2025Article
- Assessing flexible ureteroscopy outcomes for lower Pole versus non lower Pole stones using the flexible and navigable suction ureteric access sheath: a prospective multicenter study by EAU Endourology and PEARLS group.World journal of urology · 2024Article
- Could radiological parameters help to predict the failure of ureteral access sheath placement.Urolithiasis · 2024Article
- Predictive factors for difficult ureter in primary kidney stone patients before retrograde intrarenal surgery.Central European journal of urology · 2024Article
- The role of preoperative ureteral stenting in retrograde intrarenal surgery outcomes for renal stones: a matched-pair analysis.Central European journal of urology · 2024Article
- Article
Corrections and comments
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Authors and funding
15 authors at 11 institutions in 7 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo evaluate the outcomes of pre-stented (PS) versus non-pre-stented (NPS) patients who have undergone retrograde intrarenal surgery (RIRS) for renal calculi with subgroup analysis of Asian and non-Asian cohorts.
methodsProtocol is registered in PROSPERO, CRD42021261123. Eligible studies identified from four electronic databases. Meta-analysis was done to enumerate the outcomes of RIRS in between PS and NPS. Secondary sub-analysis was done to look for differences in outcomes in Asian and non-Asian cohorts.
resultsFourteen studies involving 3831 patients (4 prospective, 10 retrospective studies) were included. PS patients experienced higher success rates of ureteral access sheath (UAS) insertion than NPS (RR 1.09, 95% CI 1.05-1.13, p < 0.00001). PS patients had lower risk of ureteral injuries from UAS placement (RR 0.69, 95% CI 0.50-0.96, p = 0.03). No significant differences in intra- and postoperative complications between two groups were found. Stone-free rate (SFR) outcomes for residual fragment (RF) cut-off of < 1 mm and < 4 mm favoured the PS patients (RR 1.10, 95% CI 1.04-1.17, p = 0.002 for < 4 mm, RR1.10, 95% CI 1.02-1.19, p = 0.02 for < 1 mm). In the subgroup analysis, PS Asian patients had similar SFR as NPS patients for SFR(< 4 mm) but non-Asian population showed better outcomes in the PS patients for SFR(< 4 mm) (RR 1.31, 95% CI 1.13-1.52, p = 0.0005).
conclusionsThis meta-analysis suggests that pre-stenting results in a higher success for UAS placement, minimising intraoperative ureteric injury, with higher overall SFR for any RF cut-off in PS cohorts. In non-Asian cohort, significant differences occurred at SFR < 4 mm but not for SFR < 1 mm. No difference was seen in our Asian cohort for any SFR cut-off in both PS and NPS patients.
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