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Morphometric endoscopic study of the pharynx in patients with sleep apnea

Abstract Purpose The aims of the study were to measure endoscopically the retrolingual pharynx during wakefulness and sleep before and after maxillomandibular advancement surgery and to quantify the changes observed. Materials and Methods Eighteen patients with mild to severe grade obstructive sleep... Full description

Journal Title: American journal of otolaryngology 2012, Vol.33 (3), p.332-337
Main Author: da Silva, Sávio Nogueira, MD
Other Authors: Faria, Ana Célia, DDS , Garcia, Luis Vicente, MD , de Mello-Filho, Francisco Veríssimo, MD, PhD
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: Alma/SFX Local Collection
Publisher: New York, NY: Elsevier Inc
ID: ISSN: 0196-0709
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recordid: cdi_proquest_miscellaneous_1020048107
title: Morphometric endoscopic study of the pharynx in patients with sleep apnea
format: Article
creator:
  • da Silva, Sávio Nogueira, MD
  • Faria, Ana Célia, DDS
  • Garcia, Luis Vicente, MD
  • de Mello-Filho, Francisco Veríssimo, MD, PhD
subjects:
  • Adult
  • Aged
  • Biological and medical sciences
  • Care and treatment
  • Female
  • Follow-Up Studies
  • Humans
  • Image Processing, Computer-Assisted
  • Laryngoscopy - methods
  • Male
  • Medical research
  • Medical sciences
  • Medicine, Experimental
  • Middle Aged
  • Otolaryngology
  • Otorhinolaryngology. Stomatology
  • Pharynx - pathology
  • Pneumology
  • Polysomnography
  • Respiratory system : syndromes and miscellaneous diseases
  • Sleep apnea syndromes
  • Sleep Apnea Syndromes - diagnosis
  • Sleep Apnea Syndromes - physiopathology
  • Surgery
  • Wakefulness
ispartof: American journal of otolaryngology, 2012, Vol.33 (3), p.332-337
description: Abstract Purpose The aims of the study were to measure endoscopically the retrolingual pharynx during wakefulness and sleep before and after maxillomandibular advancement surgery and to quantify the changes observed. Materials and Methods Eighteen patients with mild to severe grade obstructive sleep apnea hypopnea were evaluated during wakefulness while sitting and lying down and during induced sleep in dorsal decubitus while breathing naturally. Images of the retrolingual region of the pharynx were captured with a nasofibroscope and recorded on a DVD using the Sony Vegas 8.0 software (Sony Creative Software, Madison, WI). The images captured in greater and smaller aperture were measured with the Image J software (produced by Wayne Rasband, United States National Institutes of Health, Bethesda, MD) in linear anteroposterior and linear laterolateral areas. A correction factor was then applied to equalize the size of the images and thus compare them to one another. Results The postoperative dimensions of the pharynx always increased significantly in all measurements compared with the preoperative ones. During induced sleep in dorsal decubitus, there was a greater gain in the area of smaller aperture (201.33%). Conclusions The proposed method showed that the dimensions of the pharynx always increased significantly after surgery for maxillomandibular advancement, although the gain was not homogeneous in all dimensions and also varied according to state of consciousness. The greatest gain was observed in the area of smaller aperture with the patient in induced sleep, thus reducing the collapse of the pharynx.
language: eng
source: Alma/SFX Local Collection
identifier: ISSN: 0196-0709
fulltext: fulltext
issn:
  • 0196-0709
  • 1532-818X
url: Link


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creatorda Silva, Sávio Nogueira, MD ; Faria, Ana Célia, DDS ; Garcia, Luis Vicente, MD ; de Mello-Filho, Francisco Veríssimo, MD, PhD
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descriptionAbstract Purpose The aims of the study were to measure endoscopically the retrolingual pharynx during wakefulness and sleep before and after maxillomandibular advancement surgery and to quantify the changes observed. Materials and Methods Eighteen patients with mild to severe grade obstructive sleep apnea hypopnea were evaluated during wakefulness while sitting and lying down and during induced sleep in dorsal decubitus while breathing naturally. Images of the retrolingual region of the pharynx were captured with a nasofibroscope and recorded on a DVD using the Sony Vegas 8.0 software (Sony Creative Software, Madison, WI). The images captured in greater and smaller aperture were measured with the Image J software (produced by Wayne Rasband, United States National Institutes of Health, Bethesda, MD) in linear anteroposterior and linear laterolateral areas. A correction factor was then applied to equalize the size of the images and thus compare them to one another. Results The postoperative dimensions of the pharynx always increased significantly in all measurements compared with the preoperative ones. During induced sleep in dorsal decubitus, there was a greater gain in the area of smaller aperture (201.33%). Conclusions The proposed method showed that the dimensions of the pharynx always increased significantly after surgery for maxillomandibular advancement, although the gain was not homogeneous in all dimensions and also varied according to state of consciousness. The greatest gain was observed in the area of smaller aperture with the patient in induced sleep, thus reducing the collapse of the pharynx.
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subjectAdult ; Aged ; Biological and medical sciences ; Care and treatment ; Female ; Follow-Up Studies ; Humans ; Image Processing, Computer-Assisted ; Laryngoscopy - methods ; Male ; Medical research ; Medical sciences ; Medicine, Experimental ; Middle Aged ; Otolaryngology ; Otorhinolaryngology. Stomatology ; Pharynx - pathology ; Pneumology ; Polysomnography ; Respiratory system : syndromes and miscellaneous diseases ; Sleep apnea syndromes ; Sleep Apnea Syndromes - diagnosis ; Sleep Apnea Syndromes - physiopathology ; Surgery ; Wakefulness
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descriptionAbstract Purpose The aims of the study were to measure endoscopically the retrolingual pharynx during wakefulness and sleep before and after maxillomandibular advancement surgery and to quantify the changes observed. Materials and Methods Eighteen patients with mild to severe grade obstructive sleep apnea hypopnea were evaluated during wakefulness while sitting and lying down and during induced sleep in dorsal decubitus while breathing naturally. Images of the retrolingual region of the pharynx were captured with a nasofibroscope and recorded on a DVD using the Sony Vegas 8.0 software (Sony Creative Software, Madison, WI). The images captured in greater and smaller aperture were measured with the Image J software (produced by Wayne Rasband, United States National Institutes of Health, Bethesda, MD) in linear anteroposterior and linear laterolateral areas. A correction factor was then applied to equalize the size of the images and thus compare them to one another. Results The postoperative dimensions of the pharynx always increased significantly in all measurements compared with the preoperative ones. During induced sleep in dorsal decubitus, there was a greater gain in the area of smaller aperture (201.33%). Conclusions The proposed method showed that the dimensions of the pharynx always increased significantly after surgery for maxillomandibular advancement, although the gain was not homogeneous in all dimensions and also varied according to state of consciousness. The greatest gain was observed in the area of smaller aperture with the patient in induced sleep, thus reducing the collapse of the pharynx.
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abstractAbstract Purpose The aims of the study were to measure endoscopically the retrolingual pharynx during wakefulness and sleep before and after maxillomandibular advancement surgery and to quantify the changes observed. Materials and Methods Eighteen patients with mild to severe grade obstructive sleep apnea hypopnea were evaluated during wakefulness while sitting and lying down and during induced sleep in dorsal decubitus while breathing naturally. Images of the retrolingual region of the pharynx were captured with a nasofibroscope and recorded on a DVD using the Sony Vegas 8.0 software (Sony Creative Software, Madison, WI). The images captured in greater and smaller aperture were measured with the Image J software (produced by Wayne Rasband, United States National Institutes of Health, Bethesda, MD) in linear anteroposterior and linear laterolateral areas. A correction factor was then applied to equalize the size of the images and thus compare them to one another. Results The postoperative dimensions of the pharynx always increased significantly in all measurements compared with the preoperative ones. During induced sleep in dorsal decubitus, there was a greater gain in the area of smaller aperture (201.33%). Conclusions The proposed method showed that the dimensions of the pharynx always increased significantly after surgery for maxillomandibular advancement, although the gain was not homogeneous in all dimensions and also varied according to state of consciousness. The greatest gain was observed in the area of smaller aperture with the patient in induced sleep, thus reducing the collapse of the pharynx.
copNew York, NY
pubElsevier Inc
pmid22071032
doi10.1016/j.amjoto.2011.10.005