Development of a Composite Measure of the Nasal Airway

Sleep Apnea Research Group Prinipal Investigator: Derek J. Lam, MD Co-Prinipal Investigator: Edward M. Weaver, MD, MPH Co-Investigators: Kathryn T. James, PA, MPH; Danna Lei, BS; Aliya Hashemi BS; Benjamin Reed Sponsor: American Academy of Otolaryngology-Head & Neck Surgery Objectives: 1. Develop a composite measure of the nasal airway including objective and subjective validated parameters.…

Confirming Nasal Airway Patency Observed on Panoramic and Posterior-Anterior Cephalometric Radiographs Using an Acoustic Rhinometer and ImageJ

Tufts University–Pediatric Dentistry Authors: Jorge Landa, Alfred Rich, and Matthew Finkelman Rationale: “Currently, dentists and orthodontists rely on subjective visual assessment of the airway extraorally, and by analyzing panoramic radiographs and noting apparent structural and anatomical abnormalities. Once again this current modality of analysis lacks a standardized norm and is subject to human error and…

Abnormalities on Nasal Exam Associated with Decreased CPAP Tolerance and Use

Sleep Apnea Research Group Principal Investigators: N. Husen, MD; E.M. Weaver, MD Abstract: “Poor tolerance and inadequate use are the greatest limitations to CPAP therapy for sleep apnea. This retrospective cohort study evaluated 306 patients who were prescribed CPAP therapy for sleep apnea at the University of Washington’s Sleep Disorders Center during the period January…

Acoustic Rhinometry Reliability

Sleep Apnea Research Group Principal Investigator: Edward M. Weaver, MD, MPH Co-Investigators: Judy Stenstrom LPN, BA This study confirms the inter-rater and test-retest reliabilities of minimum cross-sectional area measurements of the nasal airway using acoustic rhinometry. Methods – Two separate examiners measured minimum cross-sectional area with acoustic rhinometry on 25 normal volunteers on three consecutive…

Comparison of Anatomic, Physiologic, and Subjective Measures of the Nasal Airway

Sleep Apnea Research Group Principal Investigator: Derek J. Lam, MD Co-Principal Investigator: Edward M. Weaver, MD, MPH Co-Investigators: Kathryn T. James, PA, MPH American Journal of Rhinology (in press) Background – Studies comparing different categories of nasal measures have reported inconsistent results. We sought to compare validated measures of the nasal airway: anatomic (acoustic rhinometry),…

Confirming Nasal Airway Patency Observed on Panoramic and Posterior-Anterior Cephalometric Radiographs Using an Acoustic Rhinometer

(Accepted for Publication, 11/23/2009) Authors: Jorge Landa, Alfred Rich, and Matthew Finkelman Conclusion: “A very strong correlation was found between the anterior nasal cross-sectional area calculated from the radiographs, and the anterior nasal cross-sectional area and nasal volume from the rhinometer. “The acoustic rhinometer can be a very instrumental and reliable adjunct during the course…

Adherence to Continuous Positive Airway Pressure Therapy

The Proceedings of the American Thoracic Society , 2008 Authors: Terri E. Weaver and Ronald R. Grunstein Relevance: “There is emerging evidence that increased nasal resistance affects CPAP use and initial acceptance of this treatment. Using acoustic rhinometry to measure the internal dimensions of the airway, those patients with smaller nasal cross-sectional area and reduced…

Nasal Cavity Geometry of Healthy Adults Assessed Using Acoustic Rhinometry

Brazilian Journal of Otorhinolaryngology, 2008 Authors: A. de Oliveira Camargo Gomes, A. C. Martins Sampaio-Teixeira, S. H. Kiemle Trinadade, I. E. Kiemle Trinadade Conclusion: “This study used acoustic rhinometry to determine the reference values for nasal cross-sectional areas to be used, for comparison purposes, in the analysis of adults with functional and/or anatomical nasal obstruction.…

Acoustic rhinometry predicts tolerance of nasal continuous positive airway pressure: A pilot study

American Journal of Rhinology, Volume 20, Number 2, March-April 2006 , pp. 133-137(5) Authors: Morris, Luc G.; Setlur, Jennifer; Burschtin, Omar E.; Steward, David L.; Jacobs, Joseph B.; Lee, Kelvin C. Abstract: Background: Nasal continuous positive airway pressure (nCPAP) is usually the first-line intervention for obstructive sleep apnea, but up to 50% of patients are…

Physiological change in nasal patency in response to changes in posture, temperature, and humidity measured by acoustic rhinometry.

American journal of rhinology 2006;20(5):456-62. Authors, Lal Devyani; Gorges Melissa L; Ungkhara Girapong; Reidy Patrick M; Corey Jacquelynne P Abstract: BACKGROUND: Acoustic rhinometry has been used to assess nasal patency and to calculate nasal cavity volume. This study used acoustic rhinometry to assess changes in nasal patency after alterations in posture, unilateral mechanical obstruction, temperature,…