On Wed, 14 Feb 2001, Richard Boyd wrote:
> I am looking for information or any literature on carotid velocities in
> children. Today I did a carotid on a 4 year old boy referred for carotid
> bruit. He has bilateral proximal ICA kinks with very high velocities (Left
> 398/190, Right 310/96). If anyone has any experience with this I would
> appreciate info.
> Richard Boyd
> Technical Director
> CVT Vascular Lab
> Baton Rouge, LA.
i saw a similar scenario a few years ago with higher velocities/perhaps
more severe carotid kinks in a 12 year old.
he did have external to internal and posterior to anterior collaterals on
patient has been fine to my knowledge since.
per your velocity question:
as you may know-
velocities are always higher in kids
waveform analysis and velocity ratios may help you grade the
lesion/correct for highflow
angle correction is probably difficult with kinks and may make the
velocities appear artifactually high
TCD may help you decide if thesse kinks are "hemodynamically signifigant"
hope that will help!