Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1982-5-21
pubmed:abstractText
To define the pathogenesis of apneas, eight patients with hypersomnia-sleep apnea syndrome were studied during nocturnal sleep. Diaphragmatic and genioglossal electromyograms quantitated as moving time average activity showed parallel periodic fluctuations resembling the pattern of Cheyne-Stokes breathing. Hypopneas and occlusive apneas occurred at the nadir of these cyclic changes, and mixed apneas represented an extreme of this periodicity with no inspiratory activity at the nadir of the cycle. Tracings of central apneas were compatible with an extremely prolonged expiratory phase. Electromyogram activity of both muscles showed an inversely linear relationship with oxygen saturation but genioglossal activity at the resolution of upper airway occlusion was increased out of proportion to the increase in diaphragmatic activity and the degree of oxygen desaturation. These results indicated that occlusive and mixed apneas result from an instability of ventilatory control during sleep, which seems to be an exaggeration of periodic breathing observed at sleep onset.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0003-0805
pubmed:author
pubmed:issnType
Print
pubmed:volume
125
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
167-74
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Pathogenesis of apneas in hypersomnia-sleep apnea syndrome.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't