• Medicine · Jan 2023

    A 20-year trend of prevalence and susceptibility to trimethoprim/sulfamethoxazole of Stenotrophomonas maltophilia in a single secondary care hospital in Korea.

    • Je Eun Song, Sollip Kim, Yee Gyung Kwak, Sunghwan Shin, Tae-Hyun Um, Chong Rae Cho, and Jeonghyun Chang.
    • Inje University Ilsan Paik Hospital, Infectious Diseases, Internal Medicine, Goyang, Republic of Korea.
    • Medicine (Baltimore). 2023 Jan 27; 102 (4): e32704e32704.

    AbstractStenotrophomonas maltophilia is a Gram-negative opportunistic pathogen that can cause serious infection. We aimed to analyze the prevalence and susceptibility rates to trimethoprim/sulfamethoxazole of S. maltophilia. We conducted a retrospective study of S. maltophilia isolates from a university hospital from 2001 to 2020. Clinical information, the numbers of isolates and susceptibility rates were analyzed by year. Susceptibility rates and changes in respiratory and non-respiratory samples were compared. 1805 S. maltophilia isolates were identified, of which 81.4% (1469/1805) were from respiratory samples. There was a male predominance and 52% of the isolates were from general wards. The average susceptibility rate was 87.7% and there was no significant annual trend (P = .519). The susceptibility rate was 88.7% in respiratory samples and 84.1% in non-respiratory samples (P = .018). Susceptibility analyses using clinical data over long periods can guide the choice of antimicrobials especially for pathogen whose treatment options are limited.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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