Parto prematuro con membranas intactas: microbiología del líquido amniótico y tracto genital inferior y su relación con los resultados materno neonatales / Premature labor with intact membranes: relationship of amniotic fluid and lower genital tract microbiology with maternal and neonatal outcomes
Rev. méd. Chile
; 128(9): 985-95, sept. 2000. tab
Artículo
en Español
| LILACS
| ID: lil-274631
Biblioteca responsable:
CL1.1
ABSTRACT
Background: The prevalence of idiopathic spontaneous premature labor or without an evident clinical cause, has not been reduced with tocolytic treatments, suggesting that premature labor has multiple causes and infections play a not well-defined role. Aim: To perform microbiological studies of the amniotic fluid and of the lower genital tract in women with idiopathic premature labor and intact membranes, relating these findings with maternal and neonatal outcomes. Patients and methods: Women with pregnancies between 24 and 34 weeks, with premature labor and without an evident clinical cause were enrolled. Amniotic fluid and genital tract samples were obtained for traditional microbiological cultures. This information was related with delivery events and neonatal outcome. Results: Sixty-three patients were included. The overall frequency of microbial invasion of amniotic cavity was 23.8 percent and of cervical or vaginal infection was 63.5 percent (in 39.7 percent there was only cervical or vaginal infection without involvement of the amniotic sac). Absence of infection was documented in 36.5 percent of women. Compared to patients without infection, women with microbial invasion of amniotic cavity had a higher rate of prematurity (73.3 percent p < 0.05), a higher rate of prematurity of less than 34 weeks (60 percent p < 0.01), a higher frequency of preterm rupture of membranes (40 percent p < 0.001), a shorter admission-to-delivery interval (median 3.0 days p < 0.01) and lower gestational age at delivery (median 33 weeks p < 0.01). Clinical chorioamnionitis and endometritis (20 percent p < 0.01) was observed only in patients with amniotic cavity infections. Severe asphyxia (26.7 percent p < 0.05) and neonatal admission to Intensive Care Units (46.7 percent p < 0.05) were more frequent and neonatal weight was less in the offspring of women with microbial invasion of amniotic cavity (2020 g median p < 0.01). Conclusions: In preterm labor with intact membranes, intraamniotic infection is the most frequent cause of prematurity and is associated with a higher prevalence of maternal and neonatal problems
Texto completo:
Disponible
Colección:
Bases de datos internacionales
Base de datos:
LILACS
Asunto principal:
Vaginosis Bacteriana
/
Líquido Amniótico
/
Trabajo de Parto Prematuro
Tipo de estudio:
Estudio diagnóstico
/
Factores de riesgo
Límite:
Adulto
/
Femenino
/
Humanos
/
Recién nacido
/
Embarazo
Idioma:
Español
Revista:
Rev. méd. Chile
Asunto de la revista:
Medicina
Año:
2000
Tipo del documento:
Artículo