ABSTRACT
INTRODUCTION: Urinary tract infections (UTI) are the second most frequent type of infectious pathology treated in primary care clinics. The participation of microorganisms associated with sexually transmitted infection has been reported as a cause of UTI; nevertheless this concept is still controversial. To gather data on this subject, we carried out a search for Gardnerella vaginalis, Ureaplasma urealyticum, Mycoplasma hominis and Streptococcus agalactiae besides the common microorganisms involved in UTI. METHODS: A total of 1507 urine cultures from patients with a clinical diagnosis of low UTI were analyzed. Samples were inoculated onto 5% sheep blood agar and McConkey agar, as well as HBT medium for G. vaginalis, and U9B broth and agar E broth for M. hominis and U. urealyticum. The following parameters were analyzed as possible risk factors: age, sex, pregnancy and diabetes status. RESULTS. There were 436 (28.9%) positive urine cultures. Escherichia coli was isolated in 44.34% of cases. Microorganisms associated with sexually transmitted disease were found in 162 (37%): G. vaginalis (25.7%), U. urealyticum (5.9%), S. agalactiae (3.4%) and M. hominis (2%). UTI were more frequent among the 20 to 40 year-old age group, in women and in diabetic patients. CONCLUSIONS: Microorganisms associated with sexually transmitted disease were found in a large percentage of cultures, indicating the need for studies to clarify their role in the etiology of UTI.
Subject(s)
Sexually Transmitted Diseases, Bacterial/epidemiology , Urinary Tract Infections/microbiology , Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Comorbidity , Diabetes Mellitus/epidemiology , Disease Susceptibility , Female , Gardnerella vaginalis/isolation & purification , Humans , Infant , Male , Mexico/epidemiology , Middle Aged , Mycoplasma Infections/epidemiology , Mycoplasma Infections/microbiology , Mycoplasma hominis/isolation & purification , Pregnancy , Pregnancy Complications, Infectious/epidemiology , Pregnancy Complications, Infectious/microbiology , Primary Health Care , Streptococcal Infections/epidemiology , Streptococcal Infections/microbiology , Streptococcus agalactiae/isolation & purification , Ureaplasma Infections/epidemiology , Ureaplasma Infections/microbiology , Ureaplasma urealyticum/isolation & purification , Urinary Tract Infections/epidemiology , Vaginosis, Bacterial/complications , Vaginosis, Bacterial/microbiologyABSTRACT
INTRODUCCIÓN. Se reconoce la infección de vías urinarias (IVU) bajas como la segunda causa de patología de tipo infeccioso en clínicas de primer nivel de atención médica. Se estudia la participación de microorganismos asociados a infecciones de transmisión sexual como causa de IVU por lo que, además de realizar la búsqueda de microorganismos comunes, se realizó la búsqueda de Gardnerella vaginalis, Ureaplasma urealyticum, Mycoplasma hominis y Streptococcus agalactiae. MÉTODOS. Se analizaron 1.507 urocultivos de pacientes con diagnóstico clínico de IVU bajas. Las muestras se inocularon en medios de agar sangre de carnero al 5 per cent, agar McConkey, así como en medio HBT (para G. vaginalis); caldo U9B y agar E (para M. hominis y U. urealyticum). Se analizaron la edad, el sexo, el embarazo y la diabetes como posibles factores de riesgo. RESULTADOS. Se obtuvieron 436 (28,9 per cent) cultivos positivos.Escherichia coli fue aislado en 44,34 per cent de los casos. Se recuperaron 162 (37 per cent) cultivos positivos con bacterias asociadas a infecciones de transmisión sexual como G. vaginalis (25,7 per cent), U. urealyticum (5,9 per cent), S. agalactiae (3,4 per cent) y M. hominis (2 per cent). La IVU es más común entre los 20-40 años, en mujeres y en diabéticos. CONCLUSIONES. Debido a la alta frecuencia con que se aíslan estos microorganismos, se sugiere realizar estudios que aclaren su papel etiológico en las IVU (AU)
