Relación del aislamiento microbiano en líquido amniótico con la sepsis neonatal

background: many acquired infections by the newborn during birth are the result of the aspiration of infected amniotic fluid or of mother's vaginal secretions. objective: to establish the relationship among the bacterial isolate in the amniotic fluid and the development of neonatal sepsis and to link the premature ruptures of membranes, the employment of maternal antimicrobial and the birthweight with sepsis apparition in the neonate. method: a longitudinal prospective study in the microbiology, perinatology and neonatology services of the teaching provincial gynecobstetric hospital "ana betancourt de mora" of camagüey was conducted, from october 2006 to march 2007. a total of 65 samples of amniotic fluid were received which were processed in the laboratory of microbiology according to the effective norms. results: the microorganisms of the genus enterococo was isolated with more frequency (37,14 %). in the 88,5 % of patients with premature rupture of membranes more than 72 hours was developed congenital sepsis in the children. the majority of mothers with prophylactic antimicrobial treatment didn't have children with congenital sepsis. a narrow relationship existed among the low birth weight (< 2500 g) and the neonatal sepsis. conclusions: the use of prophylactic antimicrobial in the premature rupture of membranes diminishes the risk of neonatal sepsis.