Abstract

GARCIA NOGUERA DE YEGUEZ, Marisol  and  INAUDY BOLIVAR, Efraín. Tecnología Doppler y movimientos respiratorios fetales. Gac Méd Caracas. [online]. 2008, vol.116, n.1, pp.3-9. ISSN 0367-4762.

Doppler ultrasound technology has been the main tool for monitoring fetal physiology, giving important information about fetal haemodinamic status. We are aware that normal fetal growing and development and its intra womb wellbeing depends on an accurate uterus - placental blood circulation as fetal - placental, but with other organic structures, and this is the reason why this method opens a wide investigation line in the field of fetal physiology. Our purpose is to expose clearly the concepts involved in fetal breath development and physiology with non invasive techniques of fetal wellbeing such as color Doppler technology, by witch is possible to study the movement of amniotic flux through transnasal flux, as we can evaluate qualitatively and quantitatively by the velo-city waves of such flux through the spectral analysis of fetal breath movements, closely related to the higher production of fetal steroids responsible of fetal lung maturation. Different methodologies are presented and diagnostic resources applied in this last years over the breath movements and its relation to fetal wellbeing and its importance. We also do a description of fetal breath system development and physiology.

Keywords : Spectral analysis; Fetal breath movements; Doppler; Transnasal flux.