Ultrasonographic patterns of fetal breathing movements in normal pregnancy

Autor:	Cosmi, E.V., Anceschi, M.M., Cosmi, E., Piazze, J.J., La Torre, R.
Předmět:	FETAL diseases PREGNANCY complications ABDOMINAL physiology CHEST physiology ABDOMEN COMPARATIVE studies FETAL movement FETAL ultrasonic imaging GESTATIONAL age HUMAN reproduction LONGITUDINAL method RESEARCH methodology MEDICAL cooperation PREGNANCY PRENATAL care REFERENCE values RESEARCH RESPIRATION EVALUATION research COLOR Doppler ultrasonography CROSS-sectional method CHEST (Anatomy) RESPIRATORY mechanics
Zdroj:	International Journal of Gynecology & Obstetrics; Mar2003, Vol. 80 Issue 3, p285-290, 6p
Abstrakt:	Objective: To assess through pregnancy fetal breathing movements (FBMs) patterns detected by M-mode and Doppler velocimetry technology.Methods: In this cross-sectional study FBMs were investigated in 1882 uncomplicated pregnancies over a 4-year period. Abdominal and thoracic wall movements of fetuses between 14 and 40 weeks of gestation were studied by M-Mode scan, and color Doppler velocimetry with spectral imaging analysis was used to investigate the presence of FBMs associated with nasal fluid flow velocity waveforms (NFFVWs).Results: Abdominal movements were observed in 19% of cases when gestation was less than 20 weeks and in 61% of cases when it was between 21 and 25 weeks; chest movements were significant after 21 weeks; and NFFVWs were detected at 22 weeks and increased progressively to 93% of cases at term.Conclusions: Fetal breathing movements are a complex phenomenon with a composite, progressive pattern of development during gestation. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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