Stenotrophomonas Maltophilia and Urinary Tract Infections: A Systematic Review

Zaryab Umar1, Salman Ashfaq2, Avish Parikh1

  • 1Internal Medicine, Icahn School of Medicine at Mount Sinai, Queens Hospital Center, New York, USA.

Cureus
|July 27, 2022
PubMed

Insights

Stenotrophomonas maltophilia commonly causes respiratory infections but is increasingly linked to urinary tract infections (UTIs). This review highlights risk factors, treatment sensitivities, and resistance mechanisms for this emerging UTI pathogen.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Urology

Background:

  • Stenotrophomonas maltophilia, a Gram-negative bacillus, is a known cause of respiratory tract infections.
  • There is a growing incidence of Stenotrophomonas maltophilia-associated urinary tract infections (UTIs).

Purpose of the Study:

  • To systematically review the literature on Stenotrophomonas maltophilia UTIs.
  • To identify patient demographics, risk factors, and clinical characteristics associated with these infections.
  • To explore antimicrobial susceptibility, resistance mechanisms, transmission, and prevention strategies.

Main Methods:

  • Systematic literature review of six articles.
  • Analysis of patient data including age and gender.
  • Evaluation of antimicrobial sensitivity patterns.

Main Results:

  • Males were more frequently affected, with a mean patient age of 62.5 years.
  • Underlying urological or nephrological diseases correlated with more severe illness.
  • Trimethoprim-sulfamethoxazole (TMP-SMX) demonstrated sensitivity in most cases.

Conclusions:

  • Stenotrophomonas maltophilia is an emerging cause of UTIs, particularly in older males.
  • Prompt identification and appropriate antimicrobial selection, such as TMP-SMX, are crucial.
  • Further research into resistance mechanisms and transmission is needed for effective prevention.

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