Please use this identifier to cite or link to this item: https://hdl.handle.net/1/975
Title: Physician decision making and clinical outcomes with laboratory polysomnography or limited channel sleep studies for obstructive sleep apnea: a randomized trial
Authors: Ratnavadivel, Rajeev ;Chai-Coetzer, C.L.;Antic, N.A.;Hamilton, G.S.;McArdle, N.;Wong, K.;Yee, B.J.;Yeo, A.;Naughton, M.T.;Roebuck, T.;Woodman, R.;McEvoy, R.D.
Affliation: Central Coast Local Health District
Gosford Hospital
Issue Date: Jan-2017
Source: 166(5):332-340
Journal title: Annals of Internal Medicine
Department: Respiratory Medicine
Abstract: Background: The clinical utility of limited-channel sleep studies (which are increasingly conducted at home) versus laboratory polysomnography (PSG) for diagnosing obstructive sleep apnea (OSA) is unclear. Objective: To compare patient outcomes after PSG versus limited-channel studies. Design: Multicenter, randomized, noninferiority study. (Australian New Zealand Clinical Trials Registry: ACTRN12611000926932). Setting: 7 academic sleep centers. Participants: Patients (n = 406) aged 25 to 80 years with suspected OSA. Intervention: Sleep study information disclosed to sleep physicians comprised level 1 (L1) PSG data (n = 135); level 3 (L3), which included airflow, thoracoabdominal bands, body position, electrocardiography, and oxygen saturation (n = 136); or level 4 (L4), which included oxygen saturation and heart rate (n = 135). Measurements: The primary outcome was change in Functional Outcomes of Sleep Questionnaire (FOSQ) score at 4 months. Secondary outcomes included the Epworth Sleepiness Scale (ESS), the Sleep Apnea Symptoms Questionnaire (SASQ), continuous positive airway pressure (CPAP) compliance, and physician decision making. Results: Change in FOSQ score was not inferior for L3 (mean difference [MD], 0.01 [95% CI, -0.47 to 0.49; P = 0.96]) or L4 (MD, -0.46 [CI, -0.94 to 0.02; P = 0.058]) versus L1 (noninferiority margin [NIM], -1.0). Compared with L1, change in ESS score was not inferior for L3 (MD, 0.08 [CI, -0.98 to 1.13; P = 0.89]) but was inconclusive for L4 (MD, 1.30 [CI, 0.26 to 2.35; P = 0.015]) (NIM, 2.0). For L4 versus L1, there was less improvement in SASQ score (-17.8 vs. -24.7; P = 0.018), less CPAP use (4.5 vs. 5.3 hours per night; P = 0.04), and lower physician diagnostic confidence (P = 0.003). Limitation: Limited-channel studies were simulated by extracting laboratory PSG data and were not done in the home. Conclusion: The results support manually scored L3 testing in routine practice. Poorer outcomes with L4 testing may relate, in part, to reduced physician confidence.
URI: https://elibrary.cclhd.health.nsw.gov.au/cclhdjspui/handle/1/975
DOI: 10.7326/M16-1301
Pubmed: https://www.ncbi.nlm.nih.gov/pubmed/28114683
ISSN: 0003-4819
Publicaton type: Journal Article
Keywords: Sleep
Study or Trial: Randomized Controlled Clinical Trial/Controlled Clinical Trial
Appears in Collections:Health Service Research

Show full item record

Page view(s)

22
checked on Jan 27, 2023

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.