Continuous Wavelet Analysis of the Breathing Sounds of Obstructive Sleep Apnea Patients and Normal Subjects during Wakefulness

Abstract:

Obstructive sleep apnea (OSA) is the most common type of sleep apnea and is caused by obstruction of the upper airway. Its distinctive feature is occurrence of repetitive pauses in breathing during sleep, due to intermittent relaxing and blocking of the patients airway by the throat muscles. Continuous such actions might narrow down the throat or may completely block it. These actions cause more difference in breathing sounds and are usually associated with a reduction in blood oxygen saturation. The breathing sounds of the patients with and without obstructive sleep apnea were recorded using a non-invasive, low-cost sensor during wakefulness in supine (lying) position and Continuous wavelet 1-D analysis was performed on those signals.

• Periodical: Applied Mechanics and Materials (Volume 622)
• Pages: 45-50
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.622.45
• Online since: August 2014
• Authors: R. Premkumar*, Chokkalingam Arun, Ramakrishnan Sai Divya
• Keywords: Breathing Sounds, Obstructive Sleep Apnea, Spectral Analysis

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