BACKGROUND Non-allergic rhinopathy (NAR), formerly known as vasomotor rhinitis, is a non-allergic and non-infectious chronic disease that is accompanied by nasal hyperemia, rhinorrhea, and no increase in the number of eosinophils. Although the medications for NAR, including intranasal corticosteroids and intranasal antihistamine, have been used in clinical practice, given the relative paucity o...

This article focuses on the tools that are available to assess nasal airflow, their utility in clinical practice, and comparison between them. Assessment of the nasal airway traditionally relied on history and physical examination only. Recently, tools have been developed that aid the physician in completing an assessment by measurement of parameters that are directly or indirectly related to a...

Abstract Purpose of Review The aim this analysis is to provide a synopsis the surgical methods utilized treat nasal valve collapse resulting in airway obstruction, and evaluate contrast lateral crural strut grafts (LCSG) tensioning (LCT). Recent Findings Lateral grafting major technique used external collapse. However, recent years, combined with articulated alar rim (AARG) has become popular. ...

BACKGROUND The human respiratory airway undergoes dramatic growth during infancy and childhood, which induces substantial variability in air flow pattern and particle deposition. However, deposition studies have typically focused on adult subjects, the results of which cannot be readily extrapolated to children. We developed models to quantify the growth of human nasal-laryngeal airways at earl...

A model was developed to simulate the uptake of inhaled vapors in the nasal airway of the Beagle dog during cyclic breathing. Input data to the model were morphological and physiological data for the dog, and physiocochemical data for the vapors. The model simulates the nasal airway as a slit-like duct, where air passes between the two airway walls in an ideal plug flow. The thickness of the wa...

IMPORTANCE External nasal valve dysfunction (ENVD) is a common cause of nasal obstruction. Although many techniques are described to help correct ENVD, evidence of the objective changes in the airway achieved by these interventions is mainly unknown. OBJECTIVE To document the airway changes in patients with ENVD by comparing subjective and objective measures obtained before and after rhinopla...

The nasal output of nitric oxide (NO) is known to be high, but there have been varying reports of the exact level. We attempted to establish a quantitative measurement of nasal NO, and looked for a possible relationship with nasal resistance, at rest and during exercise. Nasal airway ventilation was performed by using an air pump at a constant flow rate, whilst the soft palate was elevated volu...

BACKGROUND The nasal septal deviation (NSD) is one of the major causes of nasal obstruction. This condition increases upper airway resistance. In This study we evaluated the mean pulmonary artery pressure (MPAP) in patients with markedly deviated septum. METHODS Sixty two patients with NSD (Age range: 26-45 years, 34 men and 28 women) were included in the study. Mean pulmonary artery press...