Diagnosis of Obstructive Sleep Apnea in Parkinson's Disease Patients: Is Unattended Portable Monitoring a Suitable Tool?
Journal
Parkinson's Disease
ISSN
2090-8083
2042-0080
Date Issued
2015
Author(s)
Priti Gros
Victoria P. Mery
Anne-Louise Lafontaine
Ann Robinson
Andrea Benedetti
R. John Kimoff
Marta Kaminska
Type
Resource Types::text::journal::journal article
URL Institutional Repository
Abstract
<jats:p><jats:italic>Purpose.</jats:italic>Obstructive sleep apnea (OSA) is frequent in Parkinson’s disease (PD) and may contribute to nonmotor symptoms. Polysomnography (PSG) is the gold standard for OSA diagnosis. Unattended portable monitoring (PM) may improve access to diagnosis but has not been studied in PD. We assessed feasibility and diagnostic accuracy in PD.<jats:italic>Methods.</jats:italic>Selected PD patients without known OSA underwent home PM and laboratory PSG. The quality of PM signals (<jats:italic>n</jats:italic>= 28) was compared with matched controls. PM accuracy was calculated compared with PSG for standard apnea hypopnea index (AHI) thresholds.<jats:italic>Results.</jats:italic>Technical failure rate was 27.0% and airflow signal quality was lower than in controls. Sensitivity of PM was 84.0%, 36.4%, and 50.0% for AHI cut-offs of 5/h, 15/h, and 30/h, respectively, using the same cut-offs on PM. Specificity was 66.7%, 83.3%, and 100%, respectively. PM underestimated the AHI with a mean bias of 12.4/h. Discrepancy between PM and PSG was greater in those with more motor dysfunction.<jats:italic>Conclusion.</jats:italic>PM was adequate to “rule in” moderate or severe OSA in PD patients, but the failure rate was relatively high and signal quality poorer than in controls. PM overall underestimated the severity of OSA in PD patients, especially those with greater motor dysfunction.</jats:p>
Subjects
breathing disorders
;
clinical-diagnosis
;
adults