Decoding Urinary Tract Infection Trends: A 5-Year Snapshot from Central Portugal

Area of Science:

• Clinical Microbiology
• Infectious Diseases
• Public Health

Background:

• Urinary tract infections (UTIs) represent a significant healthcare challenge, particularly in hospital settings.
• Understanding local epidemiology, including bacterial pathogens and antimicrobial resistance patterns, is crucial for effective management.
• This study addresses UTIs in Central Portugal over a five-year period.

Purpose of the Study:

• To analyze the prevalence of bacterial pathogens causing UTIs.
• To investigate demographic factors associated with UTI incidence.
• To characterize antimicrobial resistance patterns and identify trends over time.

Main Methods:

• Retrospective analysis of 6161 positive urine cultures from a hospital in Central Portugal (five-year period).
• Focus on bacterial species, patient demographics (sex, clinical service), and antibiotic susceptibility testing.
• Specific attention to hospitalized patients and those undergoing invasive procedures.

Main Results:

• UTIs were more frequent in female patients and those hospitalized, especially with invasive procedures.
• Predominant uropathogens included Escherichia coli, Klebsiella pneumoniae, and Enterococcus faecalis.
• An concerning rise in Imipenem resistance for E. coli was observed, alongside a general decline in resistance to other agents, potentially linked to stewardship efforts and reduced antibiotic consumption during the COVID-19 pandemic.

Conclusions:

• Effective UTI management requires stringent infection control, targeted prevention, and judicious antibiotic prescribing.
• Continuous surveillance of resistance patterns is vital for adapting treatment strategies.
• Personalized approaches and antibiotic stewardship are key to mitigating antimicrobial resistance.