Colonização materna e neonatal por estreptococo do grupo B em gestantes com trabalho de parto prematuro e/ou ruptura prematura pré-termo de membranas

AUTOR(ES)
DATA DE PUBLICAÇÃO

2004

RESUMO

Objective: to study group B streptococcus maternal colonization rates and risk factors in women with preterm labor (PTL) and preterm premature rupture of membranes (PROM). Methods: Vaginal and anal swabs (two of each) were colected from 203 women followed at CAISM-UNICAMP. One of each swab was placed in transport media and then cultured in blood-agar plates, the other swabs were incubated in Todd-Hewitt selective media for 24 hours and then subcultured in blood-agar plates. Results: Maternal colonization rate was 27.6% (56 women). Colonization rates by admission diagnosis were 34.7% in PROM, 25.2% in PTL and 17.8% in PTL and PROM. White race, less than elementary education level and urinary tract infection were associated with maternal colonization in the univariate analysis. Urinary tract infection was the only variable associated with maternal colonization in a multivariate analysis. GBS detection rates were significantly higher with the use of selective culture media and with sampling of both vaginal and anorectal sites. Neonatal colonization rate was 3.1%. There were two cases of early-onset neoanatal sepsis caused by GBS, with an estimated prevalence of 10.8 cases per thousand live borns and a mortality rate of 50%. Conclusions: This sample of women had high GBS colonization rates. The use of selective culture media and collection of both anal and vaginal samples is necessary in order to maximize GBS detection rates. Early-onset neonatal sepsis incidence was high in this population

ASSUNTO(S)

complicações na gravidez gravidez pregnancy preterm labor ruptura prematura de membranas fetais prevalencia trabalho de parto prematuro streptococcus agalactiae complications of pregnancy group b streptococcus prematurity preterm prenature rupture of membranes

ACESSO AO ARTIGO

Documentos Relacionados