ArticleThe Laryngoscope2013
The effect of geniglossal advancement on airway flow using a computational flow dynamics model.
Article in The Laryngoscope, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed, 10 citations in OpenAlex.
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
objectives/hypothesisObstructive sleep apnea (OSA) is a sleep disorder caused by partial or complete collapse of the pharyngeal airway. Genioglossal advancement (GGA) is a well-tolerated surgical procedure intended to address hypopharyngeal collapse, yet there are few studies that monitor changes in airflow dynamics at this site. Computation fluid dynamics (CFD) utilizes airflow simulation to predict changes in airflow after anatomic manipulation. STUDY
designWe investigated the change in volume and airflow dynamics of the pharyngeal airway after GGA in a cadaveric model.
methodsWe performed serial GGA from 1 mm (control) to 3, 7, and 9 mm on a lightly preserved cadaver. After each intervention, we performed high-resolution computed tomography scans, reconstructed the pharyngeal airway, and quantified airspace volume and CFD analysis with both laminar and large eddy simulation models.
resultsAirway volume increased with linear GGA. In both CFD simulation models, velocity increased and pressure decreased after 9-mm advancement secondary to increased airway diameter and less abrupt changes in airway geometry.
conclusionsThese results suggest that GGA may be effective in increasing airway volume and flow to address hypopharyngeal obstruction in OSA.
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