Document Detail

Home unattended vs hospital telemonitored polysomnography in suspected obstructive sleep apnea syndrome: a randomized crossover trial.
MedLine Citation:
PMID:  11888956     Owner:  NLM     Status:  MEDLINE    
STUDY OBJECTIVE: To compare home unattended polysomnography (H-PSG) with polysomnography performed in a local hospital and telemonitored by a sleep laboratory (T-PSG) in the diagnosis of obstructive sleep apnea syndrome (OSAS). DESIGN: Randomized crossover trial. PATIENTS: Ninety-nine patients with suspected OSAS who underwent H-PSG and T-PSG on 2 consecutive nights, according to a randomized order. MEASUREMENTS: H-PSG and T-PSG were compared in terms of (1) effectiveness, only recordings providing interpretable signals from at least one EEG, the electro-oculograph, the electromyograph, air flow, thoracic or abdominal movements, and arterial oxygen saturation for 180 min of sleep were considered to be effective; (2) patient preference assessed by a questionnaire; and (3) polysomnographic indexes and final interpretative results in patients for whom both recordings were legible. RESULTS: Recordings were considered to be ineffective in 11.2% of T-PSG (95% confidence interval [CI], 4.9 to 17.4%) and in 23.4% of H-PSG (95% CI, 19.12 to 27.68%). Thermistor problems were the main cause of failure of H-PSG. Forty-one percent of patients preferred H-PSG, and 55% preferred T-PSG. H-PSG and T-PSG did not differ in terms of sleep and respiratory indexes in the 65 patients in whom both recordings were legible. H-PSG and T-PSG were concordant in 58 of 65 patients using a 10-event-per-hour apnea-hypopnea index cutoff value for the diagnosis of OSAS. CONCLUSIONS: T-PSG is clearly superior to H-PSG from a technical point of view and tends to be preferred by patients. The site of recording (home vs hospital) has no influence on polysomnographic indexes.
Frédéric Gagnadoux; Nathalie Pelletier-Fleury; Carole Philippe; Dominique Rakotonanahary; Bernard Fleury
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Multicenter Study; Randomized Controlled Trial    
Journal Detail:
Title:  Chest     Volume:  121     ISSN:  0012-3692     ISO Abbreviation:  Chest     Publication Date:  2002 Mar 
Date Detail:
Created Date:  2002-03-12     Completed Date:  2002-04-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0231335     Medline TA:  Chest     Country:  United States    
Other Details:
Languages:  eng     Pagination:  753-8     Citation Subset:  AIM; IM    
Service de Pneumologie, Hôpital de Versailles, le Chesnay, France.
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MeSH Terms
Cross-Over Studies
Middle Aged
Polysomnography* / methods*
Sleep Apnea, Obstructive / diagnosis*

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