Title
Effect of apnea duration on apnea induced variations in cerebral blood flow velocity and arterial blood pressure.
Abstract
Obstructive Sleep Apnea (OSA), defined by shallow breaths or complete cessation of breathing for more than 10s, is a significant contributing factor for the developments of hypertension, myocardial infarction, stroke and neuropsychological impairments. In this study, we have investigated the relation between apnea duration and apnea induced variations in cerebral blood flow velocity (CBFV) concomitant with blood pressure changes in 9 sleep apnea subjects (8 male and 1 female; Age: 46.0±11.6 years; BMI: 34.5±7.8 kg/m(2); AHI: 81.6±41). As apnea duration increased from 10s to greater than 30s, the mean percentage rise in CBFV increased from 22% to 42% for amplitude and 22% to 33% for area respectively. For blood pressure, the values increased from 14% to 26% for amplitude and 14% to 23% for area respectively. The results suggest that the apnea duration has a measurable effect on the degree of rise in both cerebral blood flow velocity and arterial blood pressure during apnea episodes (p=0.0002).
Year
DOI
Venue
2014
10.1109/EMBC.2014.6943581
EMBC
Keywords
Field
DocType
apnea episodes,complete cessation,apnea induced variations,medical disorders,blood pressure measurement,obstructive sleep apnea,stroke,myocardial infarction,shallow breaths,electroencephalography,sleep,blood vessels,pneumodynamics,hypertension,breathing,blood flow measurement,arterial blood pressure,cbfv,apnea duration,electro-oculography,brain,mean percentage rise,electromyography,neuropsychological impairments,blood pressure changes,osa,time 10 s to 30 s,rise degree,sleep apnea subjects,cerebral blood flow velocity concomitant,blood flow
Myocardial infarction,Obstructive sleep apnea,Sleep apnea,Blood flow,Anesthesia,Stroke,Apnea,Cerebral blood flow,Blood pressure,Medicine
Conference
Volume
ISSN
Citations 
2014
1557-170X
1
PageRank 
References 
Authors
0.63
1
7