Obstructive sleep apnoea (OSA) results from the recurrent collapse of the upper airway during sleep. Nasal abnormalities influence the stability of the pharynx. The aim of this study was to evaluate the volumetric and ...

Introduction: Many studies have shown the influence of nasal obstruction on sleep disorders and adaptation to continuous positive airway pressure (CPAP). However, data are lacking on the impact of continuous positive ...

OBJECTIVE: To correlate objective assessment of nasal obstruction, as measured by acoustic rhinometry (volume of the first 5 cm of the nasal cavity) and active anterior rhinomanometry (total nasal airway resistance), with ...

Introduction: Obstructive sleep apnea is a consequence of upper airway collapse. Any obstructive sector in the upper airway can contribute to pharyngeal collapse. Obesity and obesity-related disorders play an important ...

Acoustic rhinometry is an objective method to determine nasal cavity geometry. The technique is based on sound wave reflexion analysis in the nasal cavity, and determines crossectional areas as a function of distance as ...

La teoría fuente-filtro describe los parámetros fisiológicos de la producción de sonidos en mamíferos, entre ellos la especie humana. El sonido generado por la fuente sonora es filtrado a través del tracto vocal, adquiriendo ...