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Titolo:
Daytime tiredness correlates with nocturnal respiratory and arousal variables in sleep apnea patients: Polysomnography and EEG mapping investigations
Autore:
Saletu, M; Hauer, C; Anderer, P; Saletu-Zyhlarz, G; Gruber, G; Oberndorfer, S; Mandl, M; Popovic, R; Saletu, B;
Indirizzi:
Univ Vienna, Klin Innere Med Pulmol 4, Vienna, Austria Univ Vienna Vienna Austria a, Klin Innere Med Pulmol 4, Vienna, Austria Univ Vienna, Psychiat Klin, Vienna, Austria Univ Vienna Vienna AustriaUniv Vienna, Psychiat Klin, Vienna, Austria Univ Vienna, Schlaflab Rudolfinerhaus, Vienna, Austria Univ Vienna Vienna Austria a, Schlaflab Rudolfinerhaus, Vienna, Austria
Titolo Testata:
WIENER KLINISCHE WOCHENSCHRIFT
fascicolo: 6, volume: 112, anno: 2000,
pagine: 281 - 289
SICI:
0043-5325(20000324)112:6<281:DTCWNR>2.0.ZU;2-L
Fonte:
ISI
Lingua:
GER
Soggetto:
DISORDERS;
Keywords:
sleep apnea; polysomnography; respiration; nocturnal arousal; daytime tiredness; EEG mapping; vigilance;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Saletu, M Rudolf Kassner Gasse 30, A-1190 Vienna, Austria Rudolf Kassner Gasse 30 Vienna Austria A-1190 Vienna, Austria
Citazione:
M. Saletu et al., "Daytime tiredness correlates with nocturnal respiratory and arousal variables in sleep apnea patients: Polysomnography and EEG mapping investigations", WIEN KLIN W, 112(6), 2000, pp. 281-289

Abstract

There is evidence that daytime tiredness is caused by apnea/hypopnea with oxygen desaturation and/or by sleep fragmentation due to arousals. The aim of this study was to investigate objective and subjective sleep and awakening quality and daytime vigilance objectified by midmorning mapping of vigilance-controlled EEG (V-EEG)- in sleep apnea patients (N: 18), as compared with age- and sex-matched normal controls (N: 18) as well as to correlate nocturnal respiratory distress and arousals to daytime brain function. Statistical analyses demonstrated a deterioration in subjective and objective sleep and awakening quality in apnea patients. Midmorning V-EEG mapping in apnea patients exhibited less total power, more delta and theta, less alpha and beta activity, as well as a slower dominant frequency and centroid of thetotal activity compared to controls, which suggests a vigilance decrement. The Spearman rank correlation between 6 polysomnographically registered respiratory variables and 36 diurnal quantitative EEG measures demonstrated the following: the higher the apnea, apnea-hypopnea, snoring and desaturation indices and the lower the minimum and average low oxygen saturation, the more pronounced was diurnal tiredness. Eleven arousal measures based on ASDA criteria showed the following significant correlations: the higher the nocturnal arousal index and the more arousals due to hypopneas, the greater was daytime tiredness. On the other hand, the greater the average frequency change during arousals and the more spontaneous arousals, the better was daytime vigilance. Our findings show that, in contrast to the lengthy Multiple Sleep Latency (MSLT) and Maintenance of Wakefulness (MWT) tests which evaluate sleep pressure under resting conditions conducive to sleep,V-EEG mapping provides a brief objective measure of a sleep apnea patient's daytime tiredness under conditions of wakefulness more appropriate to reflect the patient's everyday life.

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Documento generato il 11/08/20 alle ore 15:11:29