nasal mucosa has an extraordinary nerve supply with unique geometry that encompasses complex physiology. among these, side-specific predilections to the respiratory and autonomic centers are the interesting issues that have been raised about the consequences of the nasal irritations. the aim of the study was an evaluation of how intranasal stimulation influences lung mechanics and determines wh...

The purpose of this study was to evaluate the electromyographic activity of the accessory inspiratory muscles and the diaphragmatic amplitude (DA) in nasal and mouth-breathing adults. The study evaluated 38 mouth-breathing (MB group) and 38 nasal-breathing (NB group) adults, from 18 to 30years old and both sexes. Surface electromyography (sEMG) was used to evaluate the amplitude and symmetry (P...

We examined oronasal flow partitioning in 27 volunteers with normal or slightly increased nasal resistance (mean +/- SD, 0.24 +/- 0.19 kPa/l/s). Mean percentage of inspiratory nasal flow contribution was measured during spontaneous oronasal breathing. The averaged nasal admixture of airflow differed considerably within and between all subjects (mean +/- SD, 20.9% +/- 16.5%; range 1%-70%), showi...

A reliable and comprehensive assessment of nasal breathing is problematic and still a common issue in rhinosurgery. Impairments of nasal breathing need an objective approach. In this regard, currently rhinomanometry is the only standard diagnostic tool available but has various limitations. However, in the last decade, computational fluid dynamics (CFD) has become a promising method in facing t...

We verified the utility of an oxygen economizer (Pendant Oxymizer) in assuring greater protection than nasal prongs against worsening of oxyhemoglobin resting desaturation (delta SaO2) induced by muscular exercise in 16 patients (ten with chronic obstructive pulmonary disease [COPD] and six with restrictive pulmonary disease). This worsening was quantified as desaturation surface accumulated wi...

Measurements of nasal resistance do not give an exhaustive functional assessment of nasal breathing function. Nevertheless, an increase in its thermal endocranial exchanges during its operation, which are regulated specifically by respiratory nasal mucosa, can be utilized to construct an operative physiological definition of nasal breathing at a state of optimal rest. These precise assessments,...

a comparison on dentofacial cephalometric measurements between two mouth breathing groups with anterior and posterior obstructions of nasal airway zaeim* - dr. m.r. baghersad** dr. m.h. toodeh * - assistant professor of oral orthodontics dept. - faculty of dentistry - yazd university of medical sciences. ** - dentist. background and aim: the goal of this study was to compare dentofacial cephalo...

Septal deviations are common causes of disordered nasal breathing. The caudal septum is of special interest as it contributes to shape and support for nasal breathing and aesthetics. Caudal end septoplasty involves correction of deviation while maintaining adequate support and tip projection. Here, the caudal septum’s contribution to the internal nasal valve area is highlighted and an explanati...