OBJECTIVES To evaluate the accuracy of acoustic rhinometry (AR) measurements, and to assess how well AR detects obstructions of various sizes at specific sites in the nasal cavity, we created a cast model from an adult cadaver nasal cavity. METHODS The actual cross-sectional areas of the cast model nasal passage were determined by computed tomography and compared with the corresponding areas ...

Assessment of nasal airway is helpful in understanding nasal breathing function. Acoustic rhinometry is one of the most commonly-used objective measurements of nasal airway. This test has the ability to measure the volume and the cross-sectional area of the nose in different distances. It also determines the site of minimal cross-sectional area. These variables are different in various races. D...

OBJECTIVE To measure the reduction in nasal obstruction using acoustic rhinometry in patients with allergic rhinitis treated with rupatadine. METHODS We performed a randomized, double-blind, cross-over, placebo-controlled clinical trial in asymptomatic patients with allergic rhinitis. Patients received rupatadine 10 mg or placebo once daily for 3 days, in 2 subsequent periods separated by a w...

OBJECTIVE To evaluate the usefulness of septal batten grafts to correct cartilaginous septal deformities in endonasal septoplasty. DESIGN Retrospective study. SETTING University medical center. PATIENTS Of 430 patients who underwent endonasal septoplasties from January 2006 to January 2011, 30 received septal batten grafts and were enrolled in the study. Twenty-eight patients were male an...

OBJECTIVES Since few studies on surgical training and learning curves have been performed, majority of inexperienced surgeons are anxious about performing operations. We aimed to access the results and learning curve of septoplasty with radiofrequency volume reduction (RFVR) of the inferior turbinate. METHODS We included 270 patients who underwent septoplasty with RFVR of the inferior turbina...

The objective of this study was to evaluate children's respiratory patterns in the mixed dentition, by means of acoustic rhinometry, and its relation to the upper arch width development. Fifty patients were examined, 25 females and 25 males with mean age of eight years and seven months. All of them were submitted to acoustic rhinometry and upper and lower arch impressions to obtain plaster mode...

Experiments were undertaken to characterize a noninvasive chronic, model of nasal congestion in which nasal patency is measured using acoustic rhinometry. Compound 48/80 was administered intranasally to elicit nasal congestion in five beagle dogs either by syringe (0.5 ml) in thiopental sodium-anesthetized animals or as a mist (0.25 ml) in the same animals in the conscious state. Effects of mas...

UNLABELLED Nasal septum deviation (SD) and turbinate hypertrophy (TH) increase the resistance to respiratory airflow and may impair nasal patency. OBJECTIVE To characterize the nasal geometry of individuals with nasal obstruction secondary to SD and/or TH by means of acoustic rhinometry. METHOD This prospective study included 30 adults with complaints of nasal obstruction (NO) and SD + TH (...

BACKGROUND During nasotracheal intubation it is important to have proper pretreatment for nasal mucosa constriction and nasal cavity expanding. Nasal packing of epinephrine gauze is widely used as well as xylometazoline. The aim of this study was to compare and evaluate the efficacy of prophylactic intranasal spray of xylometazoline against epinephrine gauze packing in expanding the nasal cavit...