Publicación: Prevalencia e identificación molecular de Streptococcus agalactiae en mujeres Gestantes entre la 35 y 37 semanas de gestación. Santa Marta.
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Streptococcus agalactiae is a Gram-positive coccus that is frequently associated with infections in neonates, pregnant women and immunocompromised adults. Objective: To determine the prevalence of Streptococcus group B (agalactiae), in pregnant women between 35 and 37 weeks of gestation in two IPS of the city of Santa Marta. Materials and methods: This is a prevalence, prospective study. The sample was calculated using the Netquest statistical calculator. With a confidence level of 95% and a margin of error of 5%, it results in a sample of 80 patients. Results: The frequency of risk factors were distributed as follows: Vaginal infection in the third trimester 33%, primiparity 31%, urinary infection confirmed by GBS 6%, preclampsia 4%, premature rupture of membranes 3%. The other factors such as chorioamnionitis, fetal distress, previous neonatal infection due to GBS were not present. Realizing the molecular PCR test in real time, 42 patients colonized by GBS were detected, which corresponds to a prevalence of 52%, with a proportionality ratio of 1:10. Conclusion: The prevalence rate of GBS colonization in pregnant women turned out to be higher than what has been reported so far. A statistically significant correlation was found with the variables rupture of the membranes, vaginal infection in the third trimester and urinary infection with GBS in the third trimester. Since it is important to perform the susceptibility profile, positive samples by BD MAX ™ can be subcultured to perform these tests. The SGB continues to be sensitive to antibiotics used intrapartum in a prophylactic way.