ArticleBeijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences2025
[Efficacy of rigid ureteroscopic laser lithotripsy combined with N-trap in the treatment of ureteral stones with a maximum diameter equal to or greater than 1.5 cm].
Article in Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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
1 citing paper in PubMed.
- [Analysis of endoscopic surgical strategies for duplex kidney and ureteral malformation complicated with upper urinary tract calculi].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo investigate the efficacy of rigid ureteroscopic laser lithotripsy combined with N-trap (RULL + N-trap), which is scoop-shaped, in the treatment of ureteral stones with a maximum diameter ≥ 1.5 cm.
methodsThis retrospective cohort study included patients diagnosed with ureteral calculi who underwent rigid ureteroscopic lithotripsy (RULL) combined with N-Trap stone entrapment system at the Department of Urology, Peking University Third Hospital, by the same surgical team between June 2021 and September 2024. A total of 364 patients were initially enrolled. After excluding 21 patients due to missing critical outcome variables, two distinct cohorts were established: 38 patients with ureteral stones measuring ≥1.5 cm in maximum diameter, and 305 patients with stones < 1.5 cm in maximum diameter. To minimize selection bias and control for confounding variables, propensity score matching (PSM) was employed. This resulted in two well-balanced groups: 31 patients with stones ≥1.5 cm in maximum diameter and 31 patients with stones < 1.5 cm in maximum diameter, matched on baseline demographic and clinical characteristics. The primary outcomes assessed between the two groups included stone clearance. Secondary outcomes included changes in renal function indicators, specifically serum creatinine (SCr) and estimated glomerular filtration rate (GFR), and other factors like postoperative hospital stay and operative time.
resultsIn the matched cohort, the patients with stones ≥1.5 cm in maximum diameter had significantly longer operative time compared with those with smaller stones: (85.8±28.8) min
conclusionUreteroscopic lithotripsy combined with N-trap is an optional method for treating ureteral stones with a maximum diameter ≥1.5 cm. The overall therapeutic efficacy is comparable, with the added benefit of significantly reducing the economic burden on patients.
Indexed as
Identifiers
40754903PMC12330901What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.