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  • Title: [Etiology of bacterial endocarditis in materials from Cardiology and Cardiac Surgery Clinics of the Lodz Academy].
    Author: Dudkiewicz B, Szewczyk E.
    Journal: Med Dosw Mikrobiol; 1993; 45(3):357-9. PubMed ID: 8189810.
    Abstract:
    In the years 1986-1991, 72 cases of bacterial endocarditis (BE) were investigated. The bacteria were isolated from blood in 24 cases, from native and artificial valves obtained during surgery in 24 cases, and from both blood and valves in 6 cases. Following microorganisms were isolated: S. epidermidis, S. xylosus, S. hominis, S. aureus, Micrococcus sp., S. mitis, S. sanguis, S. faecalis, M. lacunata, E. adecarboxylata, P. maltophila, Corynebacterium sp., A. calcoaceticus var. lwoffii, and Aspergillus sp. Gram-positive bacteria were prevailing among isolated strains. Staphylococci were present in 55.7% (29 cases) and among them coagulase-negative staphylococci occurred in 89.7% (26 cases). Streptococci were isolated from 9 patients (17.3%) and Gram-negative rods from 5 patients (9.65%). Coryneform bacteria were detected in 7 cases (13.5%). There was no relation between type of removed valve and colonizing it bacteria. From native and artificial valves coagulase-negative staphylococci were isolated, respectively, in 48.3% and 52.2%. Susceptibility of isolated bacteria to 27 antibiotics was determined. Multiple resistant strains were present most frequently among staphylococci.
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