Etiología de las infecciones urinarias adquiridas en la comunidad. Un estudio de 9 años
ABSTRACT: BACKGROUND: The frequency of uropathogens depends on the geographic location, age, sex and procedence of the patients (inpatients and outpatients). In order to determine prevalence of pathogens in the urinary tract, a retrospective analysis was performed of the urine cultures processed dur...
| Main Authors: | , , , , , |
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| Format: | Article in Journal/Newspaper |
| Language: | English Spanish |
| Published: |
Universidad del Zulia,Facultad de Medicina,Departamento de Enfermedades Infecciosas y Tropicales
2000
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| Subjects: | |
| Online Access: | https://doaj.org/article/3143e3075d23479db0f67a771e63e9b6 |
| Summary: | ABSTRACT: BACKGROUND: The frequency of uropathogens depends on the geographic location, age, sex and procedence of the patients (inpatients and outpatients). In order to determine prevalence of pathogens in the urinary tract, a retrospective analysis was performed of the urine cultures processed during the last nine years. METHODS: 5223 urine cultures were studied from patients attending the LUZ Clinical Laboratory between years 1990-1999. Bacterial quantification in midstream urine specimens was made applying the calibrated loop technique. Bacterial identification was made by means of routine laboratory procedures. RESULTS: Among the 5223 urine cultures processed, 1153 (22,38%) presented significant pathogens, 84,00% belonging to female patient urine cultures. Bacteriuria for more than one microorganism was 4,00%. The most frequently isolated microorganism was Escherichia coli (63,00%), followed by Gardnerella vaginalis (8,32%). Even though Gardnerella vaginalis occupies second place, the isolation of this microorganism has decreased significantly, and only one yearly isolation was made during the last two years of the study. Other microorganisms present were: Klebsiella pneumoniae (7,29%), Proteus mirabilis (6,33%), other Enterobacteriaceae (5,00%), Pseudomonas aeruginosa and other Gram-negative glucose non-fermenting rods (4,00%), Streptococcus Group B and others Streptococcus (2,00%), Enterococcus (2,00%), Staphylococcus aureus (1,00%), Aeromonas sp. (0,30%), Haemophilus influenzae (0,10%) and Candida sp. (1,00%). CONCLUSIONS: Escherichia coli continues to be the most frequently isolated pathogen. Regarding Gardnerella vaginalis, further studies should be made to understand the role of this organism in bacteriuria and its real incidence in urinary infections. RESUMEN: FUNDAMENTO: La frecuencia de uropatógenos depende de lalocalización geográfica, edad, sexo y procedencia del paciente (hospitalizados o ambulatorios). A fin de determinar la prevalencia de patógenos del tracio urinario, se realiza un análisis ... |
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