{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T18:06:05Z","timestamp":1793383565226,"version":"4.5.0"},"reference-count":15,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2015,3,27]],"date-time":"2015-03-27T00:00:00Z","timestamp":1427414400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81371079"],"award-info":[{"award-number":["81371079"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["aao-hnsfjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Otolaryngol.--head neck surg."],"published-print":{"date-parts":[[2015,7]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To measure obstruction length and height using drug\u2010induced sleep endoscopy (DISE) in obstructive sleep apnea (OSA) patients and to evaluate their association with outcomes of velopharyngeal surgery.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design<\/jats:title><jats:p>Prospective cohort study.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>University medical center.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Forty\u2010three consecutive patients with OSA were evaluated by DISE using dexmedetomidine. The 2\u00a0new parameters, obstruction length (defined as the distance from the most superior point of the collapse to the most inferior point of the collapse) and obstruction height (the distance from the posterior border of the nasal septum to the most proximal point of the collapse), were measured by both DISE and a pressure transducer catheter method before surgery. All of the patients received velopharyngeal surgery, including revised uvulopalatopharyngoplasty with uvula preservation and transpalatal advancement pharyngoplasty. We followed up with all of the patients using polysomnography at least 3\u00a0months after surgery.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Twenty\u2010six (60.5%) patients were responders, and 17 (39.5%) were nonresponders. The mean obstruction length and obstruction height were 1.3 \u00b1 0.5\u00a0cm (range, 0.4\u20102.2\u00a0cm) and 3.4 \u00b1 0.9\u00a0cm (range, 1.1\u20105.0\u00a0cm), respectively. Nonresponders had a longer obstruction length and a shorter obstruction value. Multivariate logistic regression analysis revealed that obstruction length &gt;1.4\u00a0cm (odds ratio [OR], 0.21; 95% confidence interval [CI], 0.04\u20100.98; <jats:italic>P<\/jats:italic> =. 048) and obstruction height \u22653.2\u00a0cm (OR, 9.35; 95% CI, 1.79\u201048.80; <jats:italic>P<\/jats:italic> =. 008) were the only independent predictors of velopharyngeal surgery success.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Accurate measurement of obstruction length and height can be performed with both DISE and a pressure transducer catheter method. The 2 parameters can predict the outcome of velopharyngeal surgery.<\/jats:p><\/jats:sec>","DOI":"10.1177\/0194599815576719","type":"journal-article","created":{"date-parts":[[2015,3,29]],"date-time":"2015-03-29T00:53:00Z","timestamp":1427590380000},"page":"144-149","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["The Role of Obstruction Length and Height in Predicting Outcome of Velopharyngeal Surgery"],"prefix":"10.1002","volume":"153","author":[{"given":"Peng","family":"Zhang","sequence":"first","affiliation":[{"name":"Department of Otolaryngology Head and Neck Surgery Beijing Tongren Hospital Capital Medical University Beijing China"},{"name":"Department of Otolaryngology Head and Neck Surgery The First Affiliated Hospital of Zhengzhou University Zhengzhou Henan 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