Endoscopic examination of obstructive sleep apnea syndrome patients during drug-induced sleep.

Endoscopic examination of obstructive sleep apnea syndrome patients during drug-induced sleep. Research Abstract Details 

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Endoscopic examination of obstructive sleep apnea syndrome patients during drug-induced sleep. Abstract Text:

Koichi Iwanaga,Kiyokazu Hasegawa,Nobuhiro Shibata,Kenji Kawakatsu,Yasutaka Akita,Kenji Suzuki,Mikio Yagisawa,Tadao Nishimura,

Sixty patients diagnosed with obstructive sleep apnea syndrome (OSAS) underwent uvulopalatopharyngoplasty (UPPP). The effects of surgery were studied based on endoscopic findings during drug-induced sleep and determination of the apnea-hypopnea index (AHI) before and after the operation. Changes in the form of the airway during sleep in the recumbent position were observed, and the role of upper airway endoscopy in the diagnosis and surgical treatment of OSAS was determined. The site of airway obstruction during sleep induced by i.v. injection of 10 mg of diazepam was classified into five types, and changes in AHI and the site of airway obstruction were compared before and after surgery. Changes in airway morphology during sleep in the supine and recumbent positions were also compared before surgery. The postoperative improvement rate was 74.4% for the soft palatal type of obstruction, 76.2% for the tonsillar type, 53.3% for the circumferential palatal type and 34.0% for the mixed type. Treatment produced excellent or good effects for the soft palatal and tonsillar types of obstruction. However, many patients with the circumferential palatal and mixed types of obstruction showed only some improvement or no change. Good airway morphology was maintained in the recumbent position by patients with the soft palatal type of obstruction. With the circumferential palatal and mixed types of obstruction, improvement can be expected from operations which include surgical treatment of the posterior pharyngeal wall or lateral funiculus, or with midline laser glossectomy. A good operative outcome can be predicted in patients showing improvement of apnea in the recumbent position preoperatively.

Endoscopic examination of obstructive sleep apnea syndrome patients during drug-induced sleep. Publishing Authors By Initials

K Iwanaga,K Hasegawa,N Shibata,K Kawakatsu,Y Akita,K Suzuki,M Yagisawa,T Nishimura,

For similar palate, soft: uvula research abstracts see: palate, soft: uvula research

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Endoscopic examination of obstructive sleep apnea syndrome patients during drug-induced sleep. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Acta oto-laryngologica. Supplementum

VOLUME:

Page Numbers: 36-40

Journal Abbreviation:

ISSN: 0365-5237

DAY: 13

MONTH: 02

YEAR: 2003

Endoscopic examination of obstructive sleep apnea syndrome patients during drug-induced sleep. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 370355

Endoscopic examination of obstructive sleep apnea syndrome patients during drug-induced sleep. Keywords Mesh Terms:

KEYWORDS: Uvula

MESH TERMS: surgery

Chemical & Substance for Abstract: Endoscopic examination of obstructive sleep apnea syndrome patients during drug-induced sleep. Information

Substance Name: Diazepam

Registry Number: 439-14-5

Grant and Affiliation Information for Endoscopic examination of obstructive sleep apnea syndrome patients during drug-induced sleep.

AFFILIATION: Department of Otolaryngology, Iwanaga Clinic, Gifu, Japan.

Country: Norway

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MEDLINETA: Acta Otolaryngol Suppl

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