Defining epiglottic collapses patterns in obstructive sleep apnea patients: Francia-Lugo classification
Keywords: 
Área de Medicina Clínica y Epidemiología
OSA
Epiglottis collapse
DISE
Issue Date: 
2023
ISSN: 
2227-9032
Note: 
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
Citation: 
Francia, C.; Lugo, R.; Moffa, A.; et al. "Defining epiglottic collapses patterns in obstructive sleep apnea patients: Francia-Lugo classification". Healthcare. 11 (21), 2023, 2874
Abstract
Obstructive Sleep Apnea (OSA) is characterized by repetitive collapse of the upper airway during sleep. Drug-Induced Sleep endoscopy (DISE) is used to identify the collapse site. Among the possible sites of collapse, the epiglottis occurs more frequently than previously described. In this study, we reviewed DISE findings and classified different epiglottic collapse patterns. We found 104 patients (16.4%) with epiglottis collapse (primary 12.5% and secondary 3.9%). We described the following patterns of epiglottis collapse: Anterior-Posterior (AP) collapse with rigid component trapdoor type (48%); AP collapse with lax component floppy type (13.5%); Lateral- Lateral (LL) collapse with omega shape component book type (14.5%); and secondary due to lateral pharyngeal wall or tongue base collapse (24%). The identification of the epiglottic collapse pattern is crucial in decision-making when attempting to ameliorate OSA. These findings in OSA phenotyping could influence the type of treatment chosen.

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