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Titolo:
MICROAROUSALS IN PATIENTS WITH SLEEP-APNEA HYPOPNEA SYNDROME
Autore:
MARTIN SE; ENGLEMAN HM; KINGSHOTT RN; DOUGLAS NJ;
Indirizzi:
UNIV EDINBURGH,RIE,DEPT MED,RESP MED UNIT,LAURISTON PL EDINBURGH MIDLOTHIAN SCOTLAND UNIV EDINBURGH,RIE,DEPT MED,RESP MED UNIT EDINBURGH MIDLOTHIAN SCOTLAND
Titolo Testata:
Journal of sleep research
fascicolo: 4, volume: 6, anno: 1997,
pagine: 276 - 280
SICI:
0962-1105(1997)6:4<276:MIPWSH>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
PULSE TRANSIT-TIME; DAYTIME SLEEPINESS; APNEA; AROUSALS;
Keywords:
DAYTIME SLEEPINESS; MICROAROUSAL; SLEEP APNEA;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
S.E. Martin et al., "MICROAROUSALS IN PATIENTS WITH SLEEP-APNEA HYPOPNEA SYNDROME", Journal of sleep research, 6(4), 1997, pp. 276-280

Abstract

Upper airway obstructions during sleep cause recurrent brief awakenings or microarousals. Standard criteria exist for sleep and respiratoryevent scoring, however, there are different definitions currently used to store microarousals. We therefore compared three definitions of microarousal (ranging from 1.5-3 s in duration and one of awakening (>15 s). We examined their occurrence at the termination of apnoeas and hypopnoeas and their correlation with daytime sleepiness in patients with sleep apnoea/hypopnoea syndrome (SAHS). Sixty-three patients (aged 49, SD 10) had overnight polysomnography, multiple sleep latency tests(MSLT) and Epworth Sleepiness Scales (ESS). There were significantly more microarousals by any definition than there were awakenings (P<0.001) and there were more 1.5 s than 3 s microarousals (P<0.001). Significantly more apnoeas and hypopnoeas were terminated by 1.5 s microarousals (83% and 81%) than by 3 a microarousals (75%) (all P<0.001). Apnoea/ hypopnoea index (AHI) correlated significantly with objective daytime sleepiness (rho = -0.30, P<0.01). There were weakly significant relationships between all three microarousal definitions (-0.24<rho<-0.22, 0.03<P<0.04) and objective daytime sleepiness. None of the arousal definitions correlated with Epworth Sleepiness Scales scores. These results suggest that although 1.5 s microarousals are found at the end of more respiratory events, relationships between 3 and 1.5 s definitions, and daytime sleepiness are similar. This indicates that any of thethree microarousal definitions can be used for visual assessment of sleep fragmentation.

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Documento generato il 25/02/20 alle ore 07:35:35