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Titolo:
THE EFFECT OF NONVISIBLE SLEEP FRAGMENTATION ON DAYTIME FUNCTION
Autore:
MARTIN SE; WRAITH PK; DEARY IJ; DOUGLAS NJ;
Indirizzi:
UNIV EDINBURGH,DEPT MED,RIE,RESP MED UNIT,LAURISTON PL EDINBURGH EH3 9YW MIDLOTHIAN SCOTLAND UNIV EDINBURGH,DEPT MED,RIE,RESP MED UNIT EDINBURGH EH3 9YW MIDLOTHIAN SCOTLAND UNIV EDINBURGH,DEPT PSYCHOL EDINBURGH MIDLOTHIAN SCOTLAND
Titolo Testata:
American journal of respiratory and critical care medicine
fascicolo: 5, volume: 155, anno: 1997,
pagine: 1596 - 1601
SICI:
1073-449X(1997)155:5<1596:TEONSF>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
AIRWAY-RESISTANCE SYNDROME; APNEA HYPOPNEA SYNDROME; PERFORMANCE; MOOD; DISORDERS; MOVEMENT; PRESSURE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
34
Recensione:
Indirizzi per estratti:
Citazione:
S.E. Martin et al., "THE EFFECT OF NONVISIBLE SLEEP FRAGMENTATION ON DAYTIME FUNCTION", American journal of respiratory and critical care medicine, 155(5), 1997, pp. 1596-1601

Abstract

Patients with sleep apnea/hypopnea syndrome (SAHS) suffer from impaired daytime function that correlates with hypoxemia and visible electroencephalographic (EEC) arousals. However, not all breathing irregularities during sleep terminate with visible EEG arousal. We hypothesized that sleep disturbance without visible EEC change may impair daytime function. Twelve normal subjects spent two pairs of 2 nights each in the laboratory. The first night of each pair was for acclimatization. Onthe second night, subjects either slept undisturbed or had sleep fragmented every minute to cause a transient increase in arterial blood pressure or increase in heart rate without visible EEC arousal. We tested daytime function after each study night. We presented 253 +/- 23 tones (mean +/- SD), 79 +/- 7% of which did not cause visible EEC arousals. Fragmentation did not alter total sleep time (undisturbed: 419 +/- 27 min; fragmented: 414 +/- 32 min; p = 0.5) or arousal frequency (undisturbed: 22 +/- 4/h; fragmented: 25 +/- 6/h; p = 0.4). Fragmentation reduced slow-wave sleep (undisturbed: 24 +/- 5%; fragmented: 20 +/- 496; p < 0.01), mean sleep onset latency on the multiple sleep latency test (MSLT) (undisturbed: 8.0 +/- 3.1; fragmented: 6.2 +/- 2.1 min; p =0.01) and the maintenance of wakefulness test (MWT) (undisturbed: 29.0 +/- 10.0 min; fragmented 25.7 +/- 9.7 min; p = 0.04). Fragmentation decreased hedonic tone at 7 A.M. (27 +/- 4, 25 +/- 6; p = 0.03). Nonvisible (autonomic) sleep fragmentation makes normal subjects sleepier and impairs their mood.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 15:41:11