Abstract
The cause of most obstructive sleep apnea (OSA) is unknown. An imbalance between the negative inspiratory airway pressure and the ability of the upper-airway muscle to hold the airway open is believed to play a role. Nasal airflow obstruction has been proposed as one mechanism that will produce more negative inspiratory pressure and thus may cause OSA. Schonhofer et al 1 Schönhofer B Franklin KA Brunig H et al. Effect of nasal-valve dilation on obstructive sleep apnea. Chest. 2000; : 587-590 Abstract Full Text Full Text PDF PubMed Scopus (38) Google Scholar (September 2000) report that a nasal dilator does not improve the polysomnogram in patients with OSA and suggest that nasal obstruction does not produce OSA.
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