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Q In patients with suspected obstructive sleep apnoea syndrome (OSA), does a self reported positive response to a 2 week continuous positive airway pressure (CPAP) trial with >2 hours of documented CPAP use per night accurately identify patients with OSA?
Clinical impact ratings GP/FP/Primary care ★★★★★☆☆ Internal medicine ★★★★★☆☆ Respirology ★★★★★★☆
blinded comparison of response to a 2 week CPAP trial with polysomnography.
a sleep disorder centre in Zurich, Switzerland.
76 patients (mean age 52 y, 80% men) with suspected OSA (habitual snorer, complaint of daytime sleepiness, and an Epworth sleeping scale score ⩾8). Exclusion criteria included a contraindication for CPAP (unstable congestive heart failure, significant lung disease, or obesity hypoventilation); significant nasal obstruction; a history of any sleep disease and CPAP treatment; or a diagnosis of an internal medical, neurological, or psychiatric disease …
For correspondence: Dr K E Bloch, University Hospital of Zurich, Zurich, Switzerland.
Source of funding: Lung Leagues of Zurich and Schaffhausen.