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The Egyptian Journal of Otolaryngology
Fig. 3 | The Egyptian Journal of Otolaryngology

Fig. 3

From: The role of video-fluoroscopy in the assessment of obstructive sleep apnea patients: comparative study

Fig. 3

Awake nasoendoscopy at retro-palatal level (A) at rest, (B) during Muller’s maneuver showing grade II circular collapse, (C) during Muller’s maneuver showing grade III circular collapse, and (D) during Muller’s maneuver showing grade III anteroposterior (coronal) collapse. Awake nasoendoscopy at retro-glossal level (E) at rest and (F) during Muller’s maneuver showing grade II circular collapse. Awake nasoendoscopy at hypopharyngeal level (G) at rest and (H) during Muller’s maneuver showing grade III collapse and curled epiglottis

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