Effects of tilt on cerebral hemodynamics measured by NeoDoppler in healthy neonates.

ABSTRACT:

Background

Today, there are conflicting descriptions of how neonates respond to tilt. Examining physiologic responses of cerebral blood flow velocities (BFVs) in challenging situations like a tilt requires equipment that can cope with positional changes. We aimed to characterize how healthy term neonates respond to mild cerebral hemodynamic stress induced by a 90° tilt test using the recently developed NeoDoppler ultrasound system.

Methods

A small ultrasound probe was fixated to the neonatal fontanel by a cap, and measured cerebral BFV in healthy neonates during and after a 90° head-up tilt test, five min in total, at their first and second day of life. Unsupervised k-means cluster analysis was used to characterize common responses.

Results

Fifty-six ultrasound record

SUBMITTER: Jarmund AH 

PROVIDER: S-EPMC8566239 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature