[Pharyngeal and tracheal flora in intubated neonates: interrelations and role of streptococci].
Fourteen neonates intubated within 48 hours of birth were studied for a mean period of two weeks. None were candidates for antimicrobial therapy. Microorganism loads were evaluated twice a week, quantitatively in the pharynx and semiquantitatively in the trachea. Most microorganisms recovered were Gram-positive cocci. All species acquired reached 10(7) CFU/g by the time of the second sampling. All species recovered from the pharynx were recovered from the trachea within 0.25 weeks. The presence of alpha-hemolytic streptococci did not modify the other populations. A colonization pattern similar to that seen in the digestive tract but with specific features due to countercurrent colonization is suggested.
Poisson
D M
DM
Laboratoire de Biologie, Centre Hospitalier Régional d'Orléans.
Marchand
S
S
Citony
I
I
Laugier
J
J
D015169:Colony Count, Microbial; D006801:Humans; D007231:Infant, Newborn; D007442:Intubation, Intratracheal / Q000009:adverse effects*; D010608:Pharyngeal Diseases / Q000209:etiology / Q000382:microbiology*; D013290:Streptococcal Infections / Q000209:etiology / Q000382:microbiology*; D013291:Streptococcus / Q000254:growth & development; D014133:Tracheal Diseases / Q000209:etiology / Q000382:microbiology*
Flores pharyngée et trachéale du nouveau-né intubé: inter-relations et rôle des streptocoques.