Eugenia Gospodarek, Beata Ulatowska, Ewa Kruszyńska, Jan Talar, Małgorzata Łukowicz

Eugenia Gospodarek, Beata Ulatowska, Ewa Kruszyńska, Jan Talar, Małgorzata Łukowicz – The gram-negative microorganisms isolated from patients treated at the department and clinic of rehabilitation at the Rydygier Medical University of Bydgoszcz. Fizjoterapia Polska 2002; 2(3); 209-215

Abstract
Background. The aim of the study was to evaluate the occurrence of Gram-negative bacteria isolated from patients hospitalised in the Department and Clinic of Rehabilitation at the Rydygier Medical University in Bydgoszcz. Materials and methods. The material of the analysis was 533 clinical samples collected from patients hospitalised in 2000-2001. The study included 366 Gram-negative bacterial strains isolated from clinical materials. Bacterial identification was based on their morphological characteristics. The species were identified with ID32E and ID32GN tests (bioMérieux). The isolates were screened for antimicrobial susceptibility by the disk-diffusion method.Results. It was isolated 366 strains, 101 (27.6%) in 2000 and 265 (72.4%) in 2001. The rods belonging to Enterobacteriaceae family were amounted to 65.0%, nonfermentative rods – 27.9%, Neisseria spp. – 4.1%, Haemophilus spp. – 1.6%, and Moraxella catarrhalis – 1.4%. The most frequently were identified Proteus spp. (25.4%), Escherichia coli (23.8%), Pseudomonas spp. (17.2%), Acinetobacter spp. (13.1%), Klebsiella spp. (7.4%), Serratia spp. (3.8%). All the Enterobacteriaceae strains were susceptible to imipenem. In 2000 91,1% of these rods were susceptible to cefepime and 81,7% in 2001. A percentage of the sensitive strains to norfloxacin reached in 2000 73.2%, to ciprofloxacin – 69,5%. In 2001 a percentage of the susceptible strains to quinolones decreased to about 50%. During that period among the nonfermentative rods to imipenem were susceptible 95.7% i 85.5% strains, to netilmicine – 65.2% i 62.7%, and to cefepime – 22.2% i 59.1%, respectively. We have found 38 (10.4%) strains which produced ESBLs. These enzymes the most often were identified in K. pneumoniae (31.6%) strains. The b-lactamase AmpC was affirmed in 10 (2.7%) strains. Conclusions. From among Gram-negative bacteria most frequent isolated the Enterobacteriaceae rods. The Proteus sp. and E. coli. strains were predominant bacteria. All strains of these bacteria were susceptible to imipenem.

Key words:
hospital infections, antibiotic resistance, Enterobacteriaceae, nonfermentic rods, ESBLs

Invalid download ID.

Pobierz bezpłatnie artykuł w j. angielskim