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Published in: Pediatric Cardiology 6/2022

28-02-2022 | Echocardiography | Original Article

Right Ventricular Function in Neonates During Early Postnatal Period: A Prospective Observational Study

Authors: Jerneja Peček, Mirta Koželj, Helena Lenasi, Petja Fister

Published in: Pediatric Cardiology | Issue 6/2022

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Abstract

Previous echocardiographic studies were mainly focused on preterm infants and early fetal-to-neonatal transition period, whereas little is known about changes in the parameters of the right ventricular (RV) function after 72 h of life. Our aim was to quantitatively characterize potential changes in RV function by echocardiography in healthy term newborns between the third and the seventh day of life. We conducted a prospective observational study in 35 full-term newborns, in whom we performed echocardiographic examinations on the third and the seventh day of life. We assessed RV function, output and afterload and found a significant increase in all tissue Doppler velocities as well as in RV longitudinal strain, a higher mean RV outflow tract velocity time integral and lower myocardial performance index (MPI'), whereas the tricuspid annular plane systolic excursion, RV filling pattern, and RV outflow tract acceleration time were not significantly different between the third and the seventh day of life. Conclusions: Increased RV systolic and diastolic myocardial velocities, cardiac output and longitudinal deformation and decreased RV MPI' between the third and the seventh day of life point to a reduction of RV afterload and adaptive myocardial maturation in term newborns during this period. Moreover, PW-TDI and 2D speckle-tracking echocardiography seem to be more sensitive for evaluating RV function in comparison with M-mode echocardiography and pulsed-wave Doppler analysis of RV filling.
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25.
Metadata
Title
Right Ventricular Function in Neonates During Early Postnatal Period: A Prospective Observational Study
Authors
Jerneja Peček
Mirta Koželj
Helena Lenasi
Petja Fister
Publication date
28-02-2022
Publisher
Springer US
Published in
Pediatric Cardiology / Issue 6/2022
Print ISSN: 0172-0643
Electronic ISSN: 1432-1971
DOI
https://doi.org/10.1007/s00246-022-02855-7

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