ArticleWorld journal of nephrology2026
Perioperative predictors of urinary tract infections after percutaneous nephrolithotomy.
Article in World journal of 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.
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Abstract
backgroundUrinary tract infections (UTIs) are the most common postoperative complications of percutaneous nephrolithotomy (PNL). Besides the significant threat to the patient's life, they represent a surgical, financial, and stressful burden to the healthcare systems. Duration of the procedure, bacterial load in urine, severity of obstruction, and presence of infected stone directly increase the incidence of UTI.
aimTo identify the perioperative predictors of postoperative UTIs in patients undergoing PNL in Assiut University Urology Hospital, Assiut, Egypt.
methodsA prospective study was conducted at Assiut University Urology Hospital, Assiut University, Egypt, involving adult patients who underwent PNL from May 2022 to March 2023 for postoperative UTI. The sample size was calculated based on the previous studies and the PNL rate in our hospital, using Thompson's equation. Patients who had other surgical procedures besides PNL, had immunosuppression, congenital kidney malformations, or refused to participate were excluded. Patients were recruited consecutively during the study duration. The Excel sheet was used for data collection, and the Statistical Package for the Social Sciences (SPSS) program, version 26, was used for statistical analysis. The authors analyzed the preoperative, operative, and postoperative variables using both univariate and multivariate analyses. The statistical cutoff point for significance was set at
resultsThis study included 157 patients: 96 (61.1%) males and 61 (39.9%) females. The mean ± SD (range) age was 47.37 ± 12.47 (20-65) years. The mean body mass index ± SD (range) was 24.44 ± 2.84 (16.80-33.80) kg/m
conclusionThirty-one out of 157 patients experienced UTIs following PNL. The presence of diabetes mellitus, larger stone size, and residual stones were identified as independent risk factors for postoperative UTIs after PNL. We suggest conducting further research to identify factors that may aid in the early detection of post-PNL UTI risks.
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