Retrospective Analysis of Antibiotic Resistance Patterns of Uropathogenic Escherichia coli With Focus on Extended-Spectrum β-Lactamase at a Tertiary Central Hospital in Saudi Arabia

Health Sci Rep. 2025 Jan 23;8(1):e70378. doi: 10.1002/hsr2.70378. eCollection 2025 Jan.

Abstract

Background and aims: Urinary tract infections (UTIs) are a prevalent bacterial infection that has substantial implications for healthcare on a global scale. Escherichia coli (E. coli) is a gram-negative rod responsible for most UTI cases. ESBL-producing E. coli is widely recognized as a significant contributor to antibiotic resistance. This study aims to evaluate the prevalence and antibiotic resistance trends of ESBL-producing E. coli in patients with UTIs at a tertiary hospital in Jazan, Saudi Arabia.

Methods: A retrospective cross-sectional analysis was conducted on 347 urine specimens collected between January 2022 and March 2023.

Results: The study found that 31% of E. coli specimens were positive for ESBL. Among patients with ESBL-producing E. coli, 78.9% were females, and the majority of ESBL-producing E. coli cases were observed in the outpatient clinic departments. Among all E. coli isolates, ampicillin exhibited the highest resistance rate at 69.3%, aztreonam at 66.7%, and colistin at the lowest resistance. ESBL-producing E. coli strains exhibited higher resistance rates than non-ESBL-producing E. coli strains.

Conclusion: The study agrees with others in the region and shows a higher prevalence of ESBL-producing E. coli in the region, emphasizing the importance of antibiotic stewardship programs and infection control measures to mitigate the prevalence and spread of ESBL-producing E. coli in our region.

Keywords: Jazan; Saudi Arabia; antibiotic resistance; extended‐spectrum β‐lactamases (ESBLs); urinary tract infections (UTIs); uropathogenic E. coli (UPEC).