The concordance of the microbiologic profile of preoperative urine, pelvic urine, and renal stone culture in nephrolithiasis patients

Document Type : Original Article

Authors

1 Botany department, Faculty of Science, Mansoura University, Mansoura, 33516, Egypt.

2 Center of Excellence for Genome and Cancer Research, Urology and Nephrology Center, Mansoura University, Mansoura, 33516, Egypt.

Abstract

Background: The correlation between stone disease and bacteria was restricted to the association with struvite stones. Few studies shed light on the association between bacterial infection and non-infectious stones.
Objective: To identify the bacteria isolated from preoperative urine, pelvic and urine kidney stone samples.
Methods: Fifty preoperative urine, pelvic and urine kidney stone samples were collected from nephrolithiasis patients. The stones̕ chemical composition was tested by Fourier-transform infrared spectroscopy (FTIR). The three type of samples were subjected to microbiological analysis.
Results: The 50 patients consisted of 22 males and 28 females. The mean age of the patients was 48.7±14. The most common type of stone was uric acid in 27 (45%). s.aureus was the most predominant pathogen in stone and pelvic urine samples with 7 (35%) and 4 (66.6), respectively. E-coli was the most common pathogen in the preoperative bladder urine with 7 (50%).
Conclusion: Gram-positive bacteria were the predominant pathogen associated with stone and pelvic urine. The preoperative urine culture did not reflect the upper urinary tract infection.

Keywords

Mansoura Journal of Biology
Volume 56, Issue 3
September 2022
Pages 50-54

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