ArticleWorld journal of urology2026
A gender-based investigation of risk factors for infectious complications after percutaneous nephrolithotomy for kidney stones: insight for personalized management.
Article in World journal of urology, 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
purposeTo investigate gender-related predictors of infectious complications after percutaneous nephrolithotomy (PCNL) in a large cohort of patients with kidney stones. MATERIALS AND
methodsWe retrospectively analysed data from 492 consecutive patients who under-went PCNL at a single tertiary-referral academic center (01/2016-09/2024). Patient’s demographics, stones characteristics and operative data were collected. Stone-free status was defined as no residual stones. Complications were graded according to modified Clavien classification. Descriptive statistics and logistic regression models were used to identify factors associated with postoperative infectious complications according to patient’s gender.
resultsFemales accounted for 39.2% of the population and showed a significantly higher rate of postoperative infectious complications compared to males (24.9% vs. 16.7%, p = 0.02). Preoperative positive bladder urine cultures were more frequent in females (27.9% vs. 16.1%, p = 0.01), as were infected stones (32.6% vs. 17.4%, p = 0.001). When stratified by gender, in males, infections were significantly associated with preoperative positive urine culture (p < 0.001) and residual stone status (p = 0.02), in females, longer operative time (p = 0.01) and residual stones (p = 0.02) were the main predictors. ROC curve analysis confirmed sex-specific thresholds for infection risk: in females, a stone volume ≥3.9 cm³ and operative time ≥96 minutes; in males, a stone volume ≥5.1 cm³ and operative time ≥137 minutes.
conclusionFemale patients had higher risk of infections post PCNL than men. Surgical factors are associated with infections complications in female, while a combination of procedural and patient’s factors were found in men. In females, infectious complications occurred at lower stone volume and shorter operative time, suggesting that a gender-based risk strategy should be performed to prevent infections after PCNL.
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