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…

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…

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),…

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…

Quantification of Vocal Tract Configuration of Older Children with Down syndrome: A Pilot Study

International Journal of Pediatric Otorhinolaryngology Authors: S. A. Xue, L. Kaine, M I. Ng Abstract: AR technology has been extensively used as an objective diagnostic tool for locating structural and functional abnormalities within the oral and pharyngeal cavities, and in a variety of clinical applications, including (1) locating site and severity of vocal tract obstructions…