Influence of Preoperative Urine Culture and Bacterial Species on Urogenital Sepsis After Ureteral Flexible Lithotripsy in Patients with Upper Urinary Tract Stones

Overview

Journal Front Med (Lausanne)

Specialty General Medicine

Date 2024 May 20

PMID 38765255

Authors

Leibo Wang

Xianzhe Yu

Zuze Qiu

Puyu Liu

Wu Tian

Wei He

Yulin Pan

Feng Xu

Zhuangding Cen

Yang Ou

Daobing Li

Affiliations

Soon will be listed here.

Abstract

Objective: This retrospective study aims to identify risk factors for urogenic sepsis in patients with upper urinary tract stones following ureteral flexible lithotripsy (FURL). Additionally, we analyze the clinical characteristics of bacterial infections post-surgery.

Methods: A total of 759 patients who underwent FURL at the Urology Department of Zunyi Medical University were included. Univariate and multivariate Logistic regression analyses were conducted to identify independent risk factors for urogenic sepsis post-FURL. The distribution of bacteria based on preoperative urine cultures was also analyzed. Statistical analysis was performed using R4.2.2 software.

Results: Of the 759 patients, positive preoperative urine culture, urine nitrite positivity, urine white blood cell count (WBC) ≥ 200 cells/μL, residual stones, and neutrophil-to-lymphocyte ratio (NLR) were found to be independent risk factors for urogenic sepsis after FURL. Among the 164 patients with positive preoperative urine cultures, 32 developed urogenic sepsis post-surgery, with 68.75% having positive preoperative cultures. The leading pathogens causing postoperative urogenic sepsis were (), , , and . The probabilities of progression to urogenic sepsis were as follows: 19% ( = 12), 43% ( = 3), 33.3% ( = 1), and 33.3% ( = 1). The ages of affected patients were 47.17 ± 13.2, 53.7, 41, and 79 years, respectively. Rates of comorbid diabetes were 36.4, 66.7, 50, 100%, with nitrite positivity rates at 72.7, 33.3, 50, 0%. Ten female patients were infected with , while patients infected with had an NLR of 7.62.

Conclusion: Positive preoperative urine culture, urine nitrite positivity, urine WBC ≥ 200 cells/μL, residual stones, and NLR are independent risk factors for urogenic sepsis after FURL. is the predominant pathogen post-FURL, with notable female prevalence and nitrite-positive urine in infections. infections are associated with diabetes.

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