OBJECTIVE:

Determine the frequency of microorganisms present in the vagina of women in preterm labor.

MATERIALS AND METHODS:

Descriptive, prospective, cross-sectional study of a series of cases of 46 patients treated at the Fundación Hospital Infantil Universitario de San José de Bogotá for preterm labor, who were sampled from the vaginal introitus and planted on the A.F. Genital System-Liofilchem® panel. Genital System by Liofilchem®, according to the manufacturer's instructions. The statistical package Stata version 13 (StataCorp®) was used. The statistical analysis was descriptive, the nonparametric Wilcoxon test was run.

RESULTS:

The most isolated microorganism was Staphylococcus aureus with a frequency of 89.13%. Ureaplasma urealyticum was detected in 43.48% and Mycoplasma hominis in 19.57 Of the positive samples for genital Mycoplasmas, 52.2% showed a concentration >105 CFU/mL. Ureaplasma urealyticum isolates showed 100% resistance to clindamycin and 100% Mycoplasma hominis for erythromycin.

CONCLUSIONS:

Microorganisms that have been identified as risk factors for preterm delivery were identified in 93.5% of the vaginal discharge samples. For Ureaplasma urealyticum and Mycoplasma hominis, 100% resistance for clindamycin and erythromycin is identified.

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