Sleep apnea severity in patients undergoing atrial fibrillation ablation: Home sleep apnea‐test and polysomnography comparison

Background Sleep apnea (SA) is highly prevalent and should be treated in patients referred for catheter ablation (CA) of atrial fibrillation (AF). Watch‐type peripheral arterial tonometry (WP) for home SA testing has demonstrated a high correlation of the apnea‐hypopnea index (AHI) with Polysomnography (PSG), but the evidence of its accuracy in AF patients is not adequate. Methods This study was conducted under a retrospective, single‐center, observational design. We included 464 consecutive AF patients (age 65 ± 11 years, 76.5% male, 45.0% paroxysmal‐AF) who received both WP and PSG during the periprocedural period of the CA. We compared the AHI using the WP (WP‐AHI) to that using PSG (PSG‐AHI). Results The WP‐AHI was 25.9 ± 12.7 and PSG‐AHI 31.4 ± 18.9 (r = .48). Among 325 patients with a WP‐AHI