RESUMEN

Studies of airway pressure, tidal volume, respiratory duration, and total breath duration before and after elastic loading airway occlusions were carried out on ten full-term, normal infants on two occassions in the first week of life. Using these noninvasive techniques we infer that static compliance and the Hering-Breuer reflex are unchanged during the first week; that infants may increase sensitivity to chemical drive toward the end of the first week; and that there may be a volume related threshold for vagal inhibition of inspiration in some infants.

Asunto(s)

Dióxido de Carbono/farmacología , Recién Nacido , Respiración , Pruebas de Función Respiratoria , Femenino , Humanos , Rendimiento Pulmonar , Masculino , Ventilación Pulmonar , Volumen Residual , Respiración/efectos de los fármacos , Volumen de Ventilación Pulmonar