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Cerebral blood flow velocity alterations during obstructive sleep apnea syndrome
M Siebler1, M Daffertshofer, M Hennerici
1Department of Neurology, Heinrich Heine University of Düsseldorf, West Germany.
Neurology
|September 1, 1990
Abstract:
We recorded cerebral blood flow velocity (CBFV) for the assessment of CO2-regulated alterations during apnea by means of transcranial Doppler ultrasound in a patient with obstructive sleep apnea syndrome. CBFV increased up to doubled peak flow values during obstructive apneic phases. The results provide evidence for a normal CO2 regulation of CBFV leading to periodic vascular stress during the night.