ArticleInternational urology and nephrology2026
Asymptomatic versus symptomatic ureteral stones: predictors and nomogram for postoperative renal function recovery.
Article in International urology and nephrology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo compare renal function outcomes between asymptomatic and symptomatic ureteral stones and to develop and validate a predictive nomogram for postoperative renal recovery after ureteroscopic lithotripsy (URSL).
methodsThis two-center retrospective study included consecutive patients who underwent URSL between March 2018 and March 2023. Patients were categorized into asymptomatic and symptomatic groups. Renal function recovery was defined as a postoperative glomerular filtration rate (GFR) of the affected kidney exceeding 90% of the contralateral side at 1 year. Predictors were identified by logistic regression and incorporated into a nomogram. Model performance was assessed by receiver operating characteristic (ROC) analysis, calibration, and decision curve analysis (DCA), with both internal (bootstrap resampling) and external validation.
resultsAmong 635 patients who underwent URSL, 465 (73.2%) demonstrated recovery of renal function at 1 year postoperatively. Asymptomatic stones (n = 38, 5.98%) were associated with larger size, upper ureteral location, severe hydronephrosis, and lower preoperative GFR compared with symptomatic stones. Multivariate logistic regression identified six independent predictors of renal function recovery: older age, diabetes mellitus, higher hydronephrosis grade, complete obstruction, lower preoperative split renal function, and symptomatic status (all p < 0.05). The nomogram incorporating these variables demonstrated good discrimination (AUC = 0.786) and calibration (MAE = 0.02), which was confirmed by external validation (AUC = 0.805; MAE = 0.03). Decision curve analysis (DCA) further indicated superior clinical net benefit across a wide range of threshold probabilities.
conclusionsAsymptomatic ureteral stones were associated with delayed diagnosis, advanced obstruction, and limited renal recovery. The proposed nomogram provides a validated, individualized tool to estimate recovery probability and may inform early surgical intervention strategies.
Indexed as
Identifiers
41160245What 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.