PMID: 20654174Jul 27, 2010Paper

Correlation between upper airway soft tissue 3-D measurement and the severity of obstructive sleep apnea hypopnea syndrome

Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery
Jin-kun XuXiu Ding

Abstract

To investigate the correlation between upper airway CT measurement value and severity of patients with obstructive sleep apnea hypopnea syndrome (OSAHS). The upper airway of 82 patients with OSAHS were scanned by CT during normal respiration. The 3-D CT measurement were made in lateral and anterior-posterior diameters, cross-section areas and volumes of retropalatal and retroglossal region. The lateral diameters and cross-section areas of every research plane were negatively correlated with apnea and hypopnea index (AHI), in particular the minimal lateral diameter of the whole airway (r = -0.558, P < 0.01). For volumes, AHI decreased with larger volume of nasal cavity, nasopharyngeal cavity and velopharyngeal cavity (P < 0.05 or P < 0.01). The negative correlation between AHI and proportion of cavity volume to the bone frame of velopharyngeal area and whole upper airway were significant (P < 0.05 or P < 0.01). But the correlation between AHI and volume of velopharyngeal soft tissue, the proportion of soft tissue to the bone frame volume of velopharyngeal area, the proportion of soft tissue to the bone frame volume of whole upper airway was significant positive, as well as the correlation between AHI and the proportion of soft t...Continue Reading

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