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Doppler echocardiographic assessment of pulmonary blood flow in healthy newborns
Author(s) -
Gournay V,
Cambonie G,
Rozé JC
Publication year - 1998
Publication title -
acta pædiatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/j.1651-2227.1998.tb01471.x
Subject(s) - medicine , blood flow , cardiology , doppler effect , reference values , doppler echocardiography , nuclear medicine , blood pressure , diastole , astronomy , physics
The aim of this study was to determine interobserver variation in Doppler assessment of mean left pulmonary arterial flow velocity, and its normal values during the first 24 h of life. The interobserver variation was determined by a Bland and Altman analysis of the values of mean velocity measured in 21 newborns by 2 observers. Then, normal values of mean velocity were measured in 15 newborns at 5,10 and 15 min of life in the delivery room, and in 14 other newborns at 1, 2, 6, 12 and 24 h of life in the nursery unit. The interobserver variation was found to be acceptable. Mean velocity had a few variations within the first 24 h, but remained consistently above 20 cm s ‐1 . In conclusion, mean velocity values below 20 cm ‐1 suggest low pulmonary blood flow.