JOURNAL OF SHANDONG UNIVERSITY (OTOLARYNGOLOGY AND OPHTHALMOLOGY) ›› 2016, Vol. 30 ›› Issue (5): 54-57.doi: 10.6040/j.issn.1673-3770.0.2016.205

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Association between findings of drug-induced sleep endoscopy and hypoxemia.

ZHOU Peng, SHEN Ping, LIU Wen, LI Peihua, LI Hongquan   

  1. Department of Otolaryngology &Head and Neck Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu, China
  • Received:2016-05-08 Online:2016-10-20 Published:2016-10-20

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Abstract: Objective To explore the correlation between patterns of upper airway collapse and results of polysomnography(PSG)in patients with obstructive sleep apnea-hypopnoea syndrome(OSAHS)by reviewing drug-induced sleep endoscopy(DISE)findings. Methods A total of 51 OSAHS cases confirmed by PSG underwent DISE after taking dexmedetomidine. The findings were observed using the VOTEL(velum, oropharynx, tongue base, epiglottis and larynx)classification system. Associations between DISE and polysomnographic parameters were analyzed. Results Both velum collapse and complete lateral oropharyngeal collapse were significantly associated with increased severity of OSAHS, reflected by elevated apnea-hypopnea index(AHI), oxygen desaturation index(ODI), and T<90%, but decreased lowest oxygen saturation(LSaO2). If both collapses were on the X axis, the collapses were presented as lateral collapses. Conclusion There is strong association between complete lateral oropharyngeal wall and velum collapse and increased OSAHS severity.

Key words: Polysomnography, Endoscopy, Airway obstruction, Sleep apnea, Obstructive, Dexmedetomidine

CLC Number: 

  • R766.7
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