Prediction for spontaneous passage of ureteral stones with indwelling ureteral stent: PASS score.

ABSTRACT:

Purpose

To develop a predictive model for the spontaneous passage of ureterolithiasis in patients with indwelling ureteral stents.

Methods

In this retrospective cohort study, we reviewed all patients with ureterolithiasis who underwent ureteral stent placement at our institution from 2015 to 2021. Stone Characteristics, including stone location, density, shape, and diameter, were evaluated using computed tomography (CT). Low-density was defined as < 1000 Hounsfield units (HU). Spontaneous stone passage (SSP) was determinded by follow-up CT imaging or ureteroscopy. Multivariable logistic regression with backward selection was applied to identify predicts of SSP and to construct a predictive model.

Results

Among 401 patients, 97 (24.2%) experienced SSP after a median fo

SUBMITTER: Heiniger Y 

PROVIDER: S-EPMC12048427 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature