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Ablation therapy
Published in Riadh Habash, BioElectroMagnetics, 2020
Snoring is a common affliction affecting persons of all ages, but particularly middle-aged and elderly men and women who are overweight. OSA is a disorder in which the sufferer’s upper airway becomes intermittently blocked during sleep, creating an interruption in normal breathing. Although not all snorers have sleep apnea, snoring is a cardinal symptom of OSA and may by this mechanism be associated with increased morbidity [208]. Treatment of snoring and OSA is directed at the upper airway and the therapeutic approach depends upon the frequency and severity of the symptoms. Dental appliances and ventilators have both been effective at maintaining airway patency. However, these therapies are uncomfortable and suffer from low patient compliance rates (40–70%). Cure rates using surgical interventions have been between 30 and 75% [209].
Excessive Daytime Sleepiness: Clinical Considerations
Published in Anthony N. Nicholson, The Neurosciences and the Practice of Aviation Medicine, 2017
Thomas C. Britton, Andrew R. C. Cummin, Anthony N. Nicholson
At the mild end of the spectrum is simple snoring. Snoring occurs when the upper airway is narrow enough for the passage of air to cause vibrations, but sufficient patency is maintained to allow the flow of air. In simple snoring there is no significant airway occlusion and the apnoea/hypopnoea index is usually less than five events per hour; arousals do not occur and problems are largely confined to the bed partner. Some individuals may have arousals as a result of the effort to breathe against increased upper airway resistance rather than a complete pharyngeal occlusion, but the existence of this so-called upper airway resistance syndrome has been disputed (Douglas, 2000).
Automated Processing of Big Data in Sleep Medicine
Published in Ervin Sejdić, Tiago H. Falk, Signal Processing and Machine Learning for Biomedical Big Data, 2018
Sara Mariani, Shaun M. Purcell, Susan Redline
Respiratory sound signals that record snoring events can be used for obstructive apnea detection. The snoring phenomenon, which occurs in a majority of patients with obstructive sleep apnea, is caused by the vibration of soft tissues due to turbulent airflow through a narrow or floppy upper airway.
Towards Patient-centered Diagnosis of Pediatric Obstructive Sleep Apnea—A Review of Biomedical Engineering Strategies
Published in Expert Review of Medical Devices, 2019
Snoring is the result of vibrations of the structures in the pharyngeal airway due to the turbulence of airflow resulting from obstruction. Snoring can be objectively assessed for information on the site and degree of upper airway obstruction. For instance, palatal snoring is comprised of low-frequency sounds (<500 Hz), while non-palatal snoring has a wide range of frequencies (>500 Hz) [96]. Acoustic monitors and snore sensors are non-invasive modalities for the assessment of sleep quality. The signal can be acquired easily in the hospital, clinic, or home, and transferred/analyzed by trained personnel.