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  • Title: [Comparative studies on activities of antimicrobial agents against causative organisms isolated from urinary tract infections (1988). II. Background of patients].
    Author: Kosakai N, Kumamoto Y, Hirose T, Tanaka N, Hikichi Y, Shigeta S, Shiraiwa Y, Kameoka H, Yoshida H, Ogata M.
    Journal: Jpn J Antibiot; 1992 Sep; 45(9):1103-11. PubMed ID: 1433907.
    Abstract:
    Clinical background was investigated on 916 bacterial strains isolated from patients with urinary tract infections (UTIs) in 9 hospitals during the period from June to November, 1988. 1. Distribution of sexes, ages and infections: Among males, fifties and older were most frequent and most of them had complicated UTIs. Among females, most cases among twenties or thirties were uncomplicated UTIs. Forties and older cases were most frequent and complicated UTIs were more frequent among them than among patients in twenties and thirties. 2. Distribution of sexes, ages and pathogens isolated from UTIs: In males, Pseudomonas spp. and Enterococcus spp. were frequently isolated. In contrast, in females, Escherichia coli was the most frequent. In thirties, E. coli was not the most frequently isolated bacterium. Frequency of Pseudomonas spp., other non-fermented Gram-negative rods and Enterococcus spp. were greater among patients with higher ages. 3. Administration of antibiotics and pathogens isolated from UTIs: (1) Before administration: In uncomplicated UTIs, E. coli accounted for the majority of causative organisms. In complicated UTIs, particularly in those cases with indwelling catheter, Enterococcus spp. and Pseudomonas spp. were rather frequently isolated. (2) After administration: In complicated UTIs, higher number of pathogens were isolated. Pseudomonas spp. and Enterococcus spp. were the most frequent. Distribution of pathogens isolated from complicated UTIs without indwelling catheter was similar to that before antibiotic administration.
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