STUDY OBJECTIVES: Evaluate the efficacy of a novel device placed in the nares that imposes an expiratory resistance for the treatment of obstructive sleep apnea (OSA) and evaluate adherence to the device over a 30-day in-home trial period. DESIGN: One diagnostic and 3 treatment polysomnograms were administered in a Latin-square design to identify the optimal expiratory resistance to be used during the 30-day in-home trial. Subjects had repeat polysomnography with the prescribed device at the end of the 30-day trial. SETTING: Multicenter study. PARTICIPANTS: Participants (N=34; age 27 to 67) with a baseline apnea-hypopnea index (AHI) > or =5. MEASUREMENTS AND RESULTS: The AHI was reduced from 24.5 _ 23.6 (mean +/- SD) to an average of 13.5 +/- 18.7 (p < 0.001) across initial treatment nights. The AHI was 15.5 +/-+/- 18.9 (p = 0.001) for the prescribed device at the end of the 30-day trial. Of 24 subjects with an AHI > 10 at baseline, 13 achieved an AHI < 10 on the initial treatment nights; 10 had a similar response on the final treatment night. Percent of the night snoring decreased from 27.5 +/- 23.2 to 11.6 +/- 13.7 (p < 0.001) on initial treatment nights and 14.6 +/- 20.6 (p = 0.013) at the end of the trial; Epworth Sleepiness scores decreased from 8.7 +/- 4.0 at baseline to 6.9 +/- 4.4 (p < 0.001) at the end of the trial; the Pittsburgh Sleep Quality Index improved from 7.4 +/- 3.3 to 6.5 +/- 3.6 (p = 0.042). Mean oxygen saturation increased from 94.8 +/- 2.0 to 95.2 +/- 1.9 (p = 0.023) on initial treatment nights and 95.3 +/- 1.9 (p = 0.003) at the end of the trial. Sleep architecture was not affected. Participants reported using the device all night long for 94% of nights during the in-home trial. CONCLUSIONS: Treatment with this novel device was well tolerated and accepted by the participants. An overall reduction in AHI was documented; however, therapeutic response was variable among the participants. Further research is required to identify the ideal candidates for this new therapeutic option in the management of OSA.
RCT Entities:
STUDY OBJECTIVES: Evaluate the efficacy of a novel device placed in the nares that imposes an expiratory resistance for the treatment of obstructive sleep apnea (OSA) and evaluate adherence to the device over a 30-day in-home trial period. DESIGN: One diagnostic and 3 treatment polysomnograms were administered in a Latin-square design to identify the optimal expiratory resistance to be used during the 30-day in-home trial. Subjects had repeat polysomnography with the prescribed device at the end of the 30-day trial. SETTING: Multicenter study. PARTICIPANTS: Participants (N=34; age 27 to 67) with a baseline apnea-hypopnea index (AHI) > or =5. MEASUREMENTS AND RESULTS: The AHI was reduced from 24.5 _ 23.6 (mean +/- SD) to an average of 13.5 +/- 18.7 (p < 0.001) across initial treatment nights. The AHI was 15.5 +/-+/- 18.9 (p = 0.001) for the prescribed device at the end of the 30-day trial. Of 24 subjects with an AHI > 10 at baseline, 13 achieved an AHI < 10 on the initial treatment nights; 10 had a similar response on the final treatment night. Percent of the night snoring decreased from 27.5 +/- 23.2 to 11.6 +/- 13.7 (p < 0.001) on initial treatment nights and 14.6 +/- 20.6 (p = 0.013) at the end of the trial; Epworth Sleepiness scores decreased from 8.7 +/- 4.0 at baseline to 6.9 +/- 4.4 (p < 0.001) at the end of the trial; the Pittsburgh Sleep Quality Index improved from 7.4 +/- 3.3 to 6.5 +/- 3.6 (p = 0.042). Mean oxygen saturation increased from 94.8 +/- 2.0 to 95.2 +/- 1.9 (p = 0.023) on initial treatment nights and 95.3 +/- 1.9 (p = 0.003) at the end of the trial. Sleep architecture was not affected. Participants reported using the device all night long for 94% of nights during the in-home trial. CONCLUSIONS: Treatment with this novel device was well tolerated and accepted by the participants. An overall reduction in AHI was documented; however, therapeutic response was variable among the participants. Further research is required to identify the ideal candidates for this new therapeutic option in the management of OSA.
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