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    To investigate changes in S3 sleep and the apnea hypopnea index (AHI), SpO2 desaturation and CT90, and to determine changes in the degree of airway collapse and in the cross-sectional area of the retropalatal and lingual region in obstructive sleep apnea hypopnea syndrome patients. All subjects underwent overnight polysomnography and were evaluated using Müller's test and magnetic resonance imaging at baseline, 3, and 12 months following surgery. The mean S3 scores in patients receiving uvulopalatopharyngoplasty combined with genioglossus advancement (UPPP-GA) or UPPP combined with tongue base advancement using the Repose™ system (UPPP-TBA) noticeably increased. Marked improvement was seen in the mean AHI, LSO2, and CT90 scores 3 and 12 months following surgery compared to baseline. Airway collapsed by 25-50% in the greatest proportion undergoing surgery at the tongue base. UPPP-GA and UPPP-TBA more effectively improve S3 sleep, and mean AHI, LSO2, and CT90 scores. In addition, they effectively alleviate airway obstruction by improving the cross-sectional area of these regions. © 2014 S. Karger AG, Basel.


    Shicai Chen, Song Shi, Yanghui Xia, Fei Liu, Donghui Chen, Minhui Zhu, Meng Li, Hongliang Zheng. Changes in sleep characteristics and airway obstruction in OSAHS patients with multi-level obstruction following simple UPPP, UPPP-GA, or UPPP-TBA: a prospective, single-center, parallel group study. ORL; journal for oto-rhino-laryngology and its related specialties. 2014;76(4):179-88

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    PMID: 25138106

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