SciELO - Scientific Electronic Library Online

vol.86 issue5Predictive value of procalcitonin in children with suspected sepsis AbstractDevelopmental disorders in children and adolescents of the Los Ríos region, Valdivia, Chile, 2006-2008 author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google


Revista chilena de pediatría

Print version ISSN 0370-4106


MENDOZA, Luis et al. Time bacterial growth in blood cultures in neonates Abstract. Rev. chil. pediatr. [online]. 2015, vol.86, n.5, pp.337-344. ISSN 0370-4106.

Introduction: Sepsis is a major cause of neonatal morbidity and mortality. Objectives: To detect the time when the bacterial growth curve is evidenced in the blood sample inoculated blood cultures and comparing the times of bacterial growth between Gram negative and Gram positive bacteria, among the types of neonatal sepsis and identifying microorganisms more often isolated from preterm and term. Patients and method: A descriptive study. 114 positive blood cultures from 1,932 blood cultures taken from 01-May-2010 and 31-May-2014 were evaluated. Data were analyzed with Stata® 11.0. Results: 5.9% of blood cultures had bacterial growth. The median and interquartile range of Gram negative times of bacterial growth was 11 h (10-13 h), for Gram positive coagulase-negative Staphylococcus different (CoNS) 12h (12-18h) and CoNS 42h (36-44h). 95.8% of Gram positive and 96% of Gram negative, were the times of bacterial growth ≤ 24 h incubation, whereas the 100% CoNS was positive ≤ 62 h of incubation. Conclusion: 100% of sepsis by Gram negative and Gram positive no CoNS and 90% of those caused by CoNS are identified in blood cultures in 48 h, so we can conclude that to rule out sepsis, an incubation period of 48 h in blood cultures is sufficient.

Keywords : Blood culture; Time bacterial growth; Coagulase-negative Staphylococcus; Sepsis.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License