Neurophysiological Two-Channel Polysomnographic Device in the Diagnosis of Sleep Apnea

作者：Ferre Alex^*; Sampol Gabriel; Jose Jurado Maria; Cambrodi Roser; Lloberes Patricia; Romero Odile

来源：Journal of Clinical Sleep Medicine, 2012, 8(2): 163-168.

DOI：10.5664/jcsm.1770

• Diagnosis
• sleep apnea-hypopnea
• polysomnography
• portable polysomnography

Study Objective: Our objective was to evaluate a portable device (Somte, Compumedics, Australia), which incorporates 2 neurophysiological channels (electroencephalography and electrooculography) with cardiorespiratory monitoring for the diagnosis of obstructive sleep apnea (OSA). %26lt;br%26gt;Method: Full polysomnography (PSG) and Somte recordings were simultaneously performed in 68 patients with suspected OSA. Data were analyzed blindly by 2 scorers. %26lt;br%26gt;Results: A good agreement between methods in sleep efficiency was observed (68.8% [18.4] with PSG vs 68% [19.1] with Somte [p: n.s.] for scorer 1, and 67.5% [19.1] vs 68.4% [18.5; p: n.s.] for scorer 2). The apnea-hypopnea index (AHI) obtained with Somte was lower than with PSG: 19 (17.8) vs 21.7 (19) (p %26lt; 0.001) for scorer 1, and 16.6 (16.7) vs 20 (18.8) (p %26lt; 0.001) for scorer 2. The sensitivity of Somte for a PSG-AHI %26gt; 5 was 91% for scorer 1 and 90% for scorer 2, while specificity was 77% and 90%, respectively. The areas under the receiver operating curve for different PSG-AHI cutoff points (%26gt;= 5, %26gt;= 15, and %26gt;= 30) were 0.81, 0.90, and 0.86, respectively, for scorer 1, and 0.90, 0.88, and 0.83 for scorer 2. %26lt;br%26gt;Conclusions: These data suggest that Somte is an effective device to identify sleep and respiratory variables in patients with suspected OSA.

• 出版日期2012