Observational studyBMC urology2022
High stone-free rate immediately after suctioning flexible ureteroscopy with Intelligent pressure-control in treating upper urinary tract calculi.
Observational study in BMC urology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
23 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.
- International Alliance of Urolithiasis (IAU) guideline on staghorn calculi management.World journal of urology · 2024Guideline
- Comparative performance of single-use flexible ureteroscopes with and without direct in-scope suction: a retrospective analysis.Journal of medicine and life · 2026Article
- Comparison of Flexible and Navigable Suction Ureteral Access Sheath Versus Conventional Ureteric Access Sheath in RIRS: A Systematic Review and Meta-Analysis.Urology research & practice · 2026Article
- Direct in-scope suction (DISS) ureteroscopy: techniques, outcomes and future directions.BJU international · 2026Review
- Comparison of dusting and fragmentation techniques using an aspiration access sheath: an in vitro study.World journal of urology · 2025Article
- Retrograde intrarenal surgery with intelligent pressure control: experience from a primary hospital in China.BMC urology · 2025Article
- Clinical efficacy analysis of two different types of ureteral access sheaths in RIRS for the treatment of 2-4 cm renal stones.World journal of urology · 2025Article
- Relocation of big stone fragments with direct-in scope suction.World journal of urology · 2025Article
- Analysis of the effectiveness and safety of 7.5 Fr ultra-thin flexible ureteroscope combined with a tip-flexible suctioning ureteral access sheath for the treatment of kidney stones.International urology and nephrology · 2025Article
- Efficacy and safety of two tip flexible suctioning ureteral access sheaths combined with a 7.5Fr flexible ureteroscope: a retrospective study.Frontiers in surgery · 2025Article
- Clinical advantages of suctioning flexible ureteroscopy with intelligent pressure control on treating large upper urinary tract calculi.Frontiers in surgery · 2025Article
- The clinical efficacy of novel semirigid ureteroscopy with a vacuum suction device for treatment of >10 mm upper ureteral stones and impacted calculus: implications for clinical practice.Frontiers in surgery · 2025Article
- Laser fibers and baskets. How do they affect suction and intrarenal pressures using the novel single-use flexible direct in-scope suction ureteroscopes?Central European journal of urology · 2025Article
- Stone fragmentation with subsequent evacuation using a novel single-use flexible cystoscope/nephroscope with integrated direct in-scope suction: AnCentral European journal of urology · 2025Article
- Novel pressure- and temperature-controlled flexible ureteroscope system with a suction ureteral access sheath: a multicenter retrospective feasibility study.World journal of urology · 2024Article
- First clinical evaluation of a flexible digital ureteroscope with direct in scope suctioning system (Pusen DISS 7.5Ch): prospective multicentric feasibility study.World journal of urology · 2024Article
- Article
- Scoping Review of Experimental and Clinical Evidence and Its Influence on Development of the Suction Ureteral Access Sheath.Diagnostics (Basel, Switzerland) · 2024Article
- Factors affecting the intraoperative calculi excretion during flexible ureteroscopy lithotripsy: an in vitro analysis.World journal of urology · 2024Article
- The Prime Time for Flexible Ureteroscopy for Large Renal Stones Is Coming: Is Percutaneous Nephrolithotomy No Longer Needed?Urology research & practice · 2023Article
Corrections and comments
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Authors and funding
12 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe retrospective observational study aimed to evaluate the safety and efficacy of suctioning flexible ureteroscopy with Intelligent pressure-control (SFUI) on treating upper urinary tract calculi in a large cohort.
methodsBetween July 2020 and August 2021, 278 patients with upper urinary tract calculi who underwent SFUI in our hospital were enrolled. Outcomes were stone-free rate (SFR) in one session and one-month after SFUI treatment, and complications scored by the Clavien-Dindo classification.
resultsA total of 310 kidneys underwent SFUI were included. The median surgery time was 75 min (ranged 60-110 min). One session and one-month SFRs were 80.65% and 82.26%, respectively. The one-session SFR was ≧ 87% in patients with Guy's stone score of Grade I among stone size < 40 mm. Risk factors for unsuccessful stone-free in one session were stone history (adjusted odds ratio (aOR): 2.39, 95% confidence interval (CI): 1.21-4.73), stone size of 40-49 mm (aOR: 4.37, 95% CI: 1.16-16.45), Guy's stone score ≧ Grade II (Grade II, aOR: 3.54, 95% CI: 1.18-10.59; Grade III, aOR: 10.95, 95% CI: 2.65-45.25). The incidence of Clavien-Dindo grade II-III complication was 3.26%. Complication is associated with Guy's stone score III (aOR: 22.36, 95% CI: 1.81-276.36).
conclusionSFUI shows good safety and efficiency on treating upper urinary tract calculi. Patients with stone size < 40 mm or Guy's stone score of Grade I have a high chance to reach stone-free after SFUI treatment.
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