• J Stroke Cerebrovasc Dis · Oct 2013

    Cerebral hemodynamic changes at basilar artery in obstructive sleep apnea syndrome after continuous positive airway pressure treatment.

    • Pedro Enrique Jiménez Caballero, Ramón Coloma Navarro, Oscar Ayo Martín, and Tomás Segura Martín.
    • Department of Neurology, San Pedro de Alcántara Hospital, Cáceres, Spain. Electronic address: pjimenez1010j@yahoo.es.
    • J Stroke Cerebrovasc Dis. 2013 Oct 1; 22 (7): e93-8.

    BackgroundCerebral vasoreactivity in obstructive sleep apnea syndrome is altered. Continuous positive airway pressure is effective in the reduction of the occurrence of apneas. We studied whether this treatment also improves cerebral vasoreactivity.MethodsThe breath-holding maneuver was performed and assessed by apnea test with transcranial Doppler in the basilar artery. After 2 years of continuous positive airway pressure treatment, the test was repeated.ResultsThere is an improvement in the apnea test after continuous positive airway pressure. There are increases in the pulsatility index, diastolic blood pressure, and basal heart rate. The improvement in the apnea test depends on the body mass index of the patient.ConclusionsCerebral vasoreactivity as measured by the apnea test improves after 2 years of continuous positive airway pressure. This improvement depends of the body mass index of the patient.Copyright © 2013 National Stroke Association. Published by Elsevier Inc. All rights reserved.

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