• Medicine · Nov 2024

    Observational Study

    Clinical characteristics and bloodstream infection pathogens by gram-negative bacteria in different aged adults: A retrospective study.

    • Li Su, Yawen Cao, Yaomin Liu, Jianhua Zhang, and Guomin Zhang.
    • Department of Infectious Disease, Affiliated Hospital of Chengde Medical College, Chengde City, Hebei, China.
    • Medicine (Baltimore). 2024 Nov 8; 103 (45): e40411e40411.

    AbstractThis study aims to determine the characteristics and distribution of pathogenic bacteria in bloodstream infections (BSIs) by gram-negative bacteria in adults. One hundred seventy-one adult patients with BSIs who were treated at the Affiliated Hospital of Chengde Medical College between January 2018 and January 2020 were included in this study. The patients were assigned to the young- and middle-aged group and elderly group based on age. General patient data were analyzed. More elderly patients had BSIs and gram-negative bacteria than young- and middle-aged patients. The incidence of underlying diseases in elderly patients was significantly higher than the young- and middle-aged patients (P < .01). The composition of Brucella spp. was significantly different between the elderly group and young- and middle-aged group (P < .05). There were significantly more gallbladder infections in the elderly group than the young- and middle-aged group, and significantly fewer elderly patients had no definite infection sites than the young- and middle-aged group (P < .05). The incidence of complications and in-hospital mortality in the elderly group was higher than the young- and middle-aged group (P < .05). BSIs caused by gram-negative bacteria mainly involved elderly patients. BSIs were characterized by complications and a poor prognosis, as well as pathogenic bacteria and primary infection sites.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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