Utility of actigraphy in the diagnosis of obstructive sleep apnea.
Sleep
; 25(5): 527-31, 2002 Aug 01.
Article
em En
| MEDLINE
| ID: mdl-12150319
ABSTRACT
STUDY OBJECTIVES:
To determine whether adding actimetry to simplified polygraphy (respiratory-parameter monitoring without neurophysiologic variable recording) improves apnea-hypopnea index (AHI) evaluation as compared to simplified polygraphy alone.DESIGN:
Comparison of AHI values obtained by all-night polysomnography and by simplified polygraphy with and without actimetry.SETTING:
A teaching-hospital sleep laboratory in Garches, France. PATIENTS 20 adults with suspected obstructive sleep apnea syndrome (OSAS). MEASUREMENTS ANDRESULTS:
Data were analyzed by two scorers working independently. AHI was calculated as the number of apneas and hypopneas per hour of sleep time (polysomnography AHI-pg), per hour of time in bed (simplified polygraphy AHI-tib), and per hour of actimetry-estimated total sleep time (AHI-act). AHI-pg showed that 12 patients had OSAS (AHI>10), which was severe (AHI > or =30) in eight. AHI-act was more closely correlated to AHI-pg (r=0.976) than was AHI-tib (r=0.940). According to the Bland and Altman method, AHI-tib underestimated the AHI in two patients and AHI-act overestimated the AHI in one patient. For the diagnosis of severe OSAS, sensitivity and negative predictive value were 50% and 75% with AHI-tib as compared to 88% and 92.5% with AHI-act.CONCLUSIONS:
Actimetry, when added to simplified polygraphy, may assist in the diagnosis of OSAS.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Polissonografia
/
Apneia Obstrutiva do Sono
/
Aceleração
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Ano de publicação:
2002
Tipo de documento:
Article