[Assessment of cerebrovascular reactivity using the breath-holding test in hypertensive and normotensive adolescents--preliminary results].
OBJECTIVE
Authors report on preliminary results of cerebral vasoreactivity-tests performed in frame of the Debrecen Hypertension Study among hypertensive and healthy adolescents.


METHODS
Investigators measured blood flow velocities before and after 30 seconds of breath holding using transcranial Doppler sonography.


RESULTS
Blood flow velocities at rest were significantly higher in the hypertensive that in the healthy adolescent group. Breath holding induced less intensive cerebral vasoreactivity response in the hypertensive than in the normotensive group.


CONCLUSIONS
It is concluded that altered arteriolar function of the cerebral arterioles can be detected already in this early stage of hypertension.
Settakis
Georgios
G
Debreceni Egyetem, Orvos-és Egészségtudományi Centrum, Neurológiai Klinika.
Páll
Dénes
D
Ficzere
Andrea
A
Siró
Péter
P
Katona
Eva
E
Bereczki
Dániel
D
Csiba
László
L
Fülesdi
Béla
B
D000293:Adolescent; D001783:Blood Flow Velocity; D001944:Breath Tests; D002560:Cerebrovascular Circulation / Q000502:physiology; D003971:Diastole; D005260:Female; D006801:Humans; D006973:Hypertension / Q000000981:diagnostic imaging / Q000503:physiopathology*; D008297:Male; D011673:Pulsatile Flow; D012016:Reference Values; D013599:Systole; D017585:Ultrasonography, Doppler, Transcranial