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Title: Is portable monitoring accurate in the diagnosis of obstructive sleep apnea syndrome in chronic pulmonary obstructive disease?
Authors: Oliveira, Marcia Goncalves [UNIFESP]
Nery, Luiz Eduardo [UNIFESP]
Santos-Silva, Rogerio [UNIFESP]
Sartori, Denis Eduardo [UNIFESP]
Alonso, Fabiana Fernanda [UNIFESP]
Togeiro, Sonia Maria [UNIFESP]
Tufik, Sergio [UNIFESP]
Bittencourt, Lia [UNIFESP]
Universidade Federal de São Paulo (UNIFESP)
Keywords: Chronic obstructive pulmonary disease
Obstructive sleep apnea
Ambulatory monitoring
Overlap syndrome
Issue Date: 1-Sep-2012
Publisher: Elsevier B.V.
Citation: Sleep Medicine. Amsterdam: Elsevier B.V., v. 13, n. 8, p. 1033-1038, 2012.
Abstract: Background: No scientific evidence supports the use of portable devices to diagnose obstructive sleep apnea syndrome (OSAS) in patients with co-morbities. Our aim was to evaluate the accuracy of a portable monitoring device (Stardust - STD) in the detection of patients with chronic obstructive pulmonary disease (COPD).Methods: Patients with COPD and clinical suspicion of OSAS were recruited for a prospective randomized study. the STD was used on two different nights: (1) at home (STDHome) and (2) at the sleep laboratory simultaneous with polysomnography (PSG-STDLab).Results: A total of 72 patients underwent the proposed recordings. Forty-six volunteers were excluded due to recording problems, and data from 26 subjects were analyzed. the mean age was (mean +/- SD) 62.8 +/- 8.5 years, 50% were male, and the mean forced expiratory volume in the first second was 55 +/- 11%. Significant intraclass correlation was observed between apnea-hypopnea index (AHI)-PSG vs. AHI-STDLab (r = 0.61, p < 0.0001) and AHI-STDHome (r = 0.47, p < 0.007). Kappa analysis also showed a significant agreement for severe group.Conclusion: Despite the agreement found in a small number of patients between AHI, a large number of failures in the recording limits the use of this portable device for the diagnosis of OSAS in patients with COPD. (C) 2012 Elsevier B.V. All rights reserved.
ISSN: 1389-9457
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