Trial reportThe Journal of urology2024
The Efficacy and Safety of Radiation-Free Retrograde Intrarenal Surgery: A Prospective Multicenter-Based, Randomized, Controlled Trial.
Trial report in The Journal of urology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
7 citing papers in PubMed.
- Tips and tricks for reducing radiation exposure during retrograde intrarenal surgery: A literature review by the European Association of Urology Section of Endourology.Asian journal of urology · 2026Review
- Can We Avoid Radiation Exposure in Retrograde Intrarenal Surgery?Medicina (Kaunas, Lithuania) · 2026Article
- Article
- Evaluation of a fluoroscopy-free, ureteral access sheath-free, and stent-free approach to retrograde intrarenal surgery.World journal of urology · 2025Article
- Feasibility and future directions of radiation-free retrograde intrarenal surgery.Translational andrology and urology · 2025Article
- Radiation-free RIRS and setting a new standard: redefining safety and efficacy in stone surgery.Translational andrology and urology · 2025Article
- Radiation-free ureteroscopy: risky business or a safe alternative?Translational andrology and urology · 2025Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeFluoroscopy is usually required during retrograde intrarenal surgery (RIRS). Although fluoroscopy is considered necessary for effective and safe RIRS, there is growing awareness regarding radiation exposure risk to patients and surgeons. We conducted a multicenter-based, randomized, controlled trial to compare the safety and effectiveness of radiation-free (RF) RIRS with radiation-usage (RU) RIRS for kidney stone management. MATERIALS AND
methodsFrom August 2020 to April 2022, patients with a unilateral kidney stone (≤20 mm) eligible for RIRS were prospectively enrolled in 5 tertiary medical centers after randomization and divided into the RF and RU groups. RIRS was performed using a flexible ureteroscope with a holmium:YAG laser. The primary end point of this study was the success rate, defined as complete stone-free or residual fragments with asymptomatic kidney stones ≤ 3 mm. The secondary end point of this study was ascertaining the safety of RF RIRS. The success rates were analyzed using a noninferiority test.
resultsOf the 140 consecutive randomized participants, 128 patients completed this study (RF: 63; RU: 65). The success rates (78% vs 80%,
conclusionsThis study demonstrated that the surgical outcomes of RF RIRS were noninferior to RU RIRS.
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Registered trials
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