BACKGROUND The authors hypothesized that nasal mask ventilation may be more effective than combined oral-nasal mask ventilation during induction of general anesthesia. They tested this hypothesis by comparing the volume of carbon dioxide removed per breath with nasal versus combined oral-nasal mask ventilation in nonparalyzed, apneic, adult subjects during induction of general anesthesia. MET...

BACKGROUND Nasal septal deviation may affect nasal bone growth and facial morphology. Knowledge of nasal morphologic parameters may plays an important role in planning successful rhinoplasty and septoplasty operation. The aim of our study was to evaluate the relationship between the direction and degree of nasal septal deviation with nasal bone morphology, along with factors such as age and gen...

introduction: nasal inferior turbinate hypertrophy is one of the most common causes of nasal obstruction. many different surgical methods are currently available. the aim of this study was to review the efficacy and results of radiofrequency turbinatoplasty as a new method in the treatment of the large inferior nasal turbinate. materials and methods: this prospective study was conducted on 50 p...

PURPOSE Nasal polyposis is a chronic inflammatory disease of the upper airways often associated with asthma and characterized by markedly increased numbers of eosinophils, Th2 type lymphocytes, fibroblasts, goblet cells and mast cells. Previous studies have shown elevated levels of thymic stromal lymphopoietin (TSLP) in atopic diseases like asthma, atopic dermatitis and mainly in animal models ...

This study showed that nasal allergy patients have increased nasal airway resistance and tissue kallikrein activity in nasal lavage in accordance with the severity of symptoms. Nasal airway resistance and tissue kallikrein activity were significantly increased in the nasal lavage collected 15 min after antigen challenge, placement of a disk containing house dust antigen. The free kinin level in...

BACKGROUND A clinical test that could inform the clinician about the severity of a patient's nasal symptoms and health-related quality of life (QOL) would be very useful. OBJECTIVE We attempted to determine whether, in patients with perennial allergic rhinitis, nasal challenge with histamine could be used to estimate daily symptoms and QOL. METHODS Forty-eight patients with perennial allerg...

The nasal cavity is susceptible to chemically induced injury as a result of exposure to inhaled irritants. Some responses of the nasal mucosa to inhaled toxicants are species specific. These species-related differences in response may be due to variations in structural, physiologic, and biochemical factors, such as gross nasal cavity structure, distribution of luminal epithelial cell population...

he nasal valve is the narrowest region of the nasal passage, nd the main, flow-limiting segment of the nasal cavity.1,2 ariations in the size and shape of the nasal cavity affect he rate and pattern of airflow and influence nasal function. t therefore seems likely that improved nasal patency may lleviate snoring and sleep-disordered breathing.3,4 Traditional surgical management of nasal obstruc...