Nomogram for Predicting Postoperative Major Bleeding in Percutaneous Nephrolithotomy: A Retrospective Study.

ABSTRACT:

Background and objective

The aim of this study was to develop a nomogram for estimating the risk of postoperative major bleeding in patients who underwent surgery for percutaneous nephrolithotomy.

Methods

This retrospective study included 493 patients who had undergone unilateral percutaneous nephrolithotomy for kidney calculi at Third Xiangya Hospital from January 2022 to June 2024. Patients were temporally divided into a training set (the first 70% of treated patients) and a validation set (the last 30%). The least absolute shrinkage and selection operator, and multivariable logistic regression were employed to identify independent predictors of major bleeding upon which a nomogram was based.

Key findings and limitations

This study retrospectively analyzed 493 patie

SUBMITTER: Wu Y 

PROVIDER: S-EPMC12314390 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature