+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

CT demonstration of pharyngeal narrowing in adult obstructive sleep apnea



CT demonstration of pharyngeal narrowing in adult obstructive sleep apnea



Ajr. American Journal of Roentgenology 140(3): 543-548



Sleep apnea is a major cause of daytime hypersomnolence. Among the proposed etiologies, focal obstruction of the airways at the level of the pharynx has been suggested but not proven. Using computed tomography, the cross-sectional area of the airway can be readily assessed. Thirty-three adults with clinically proven sleep apnea and 12 normal adults underwent systematic computed tomography of the neck. Significant airway narrowing was demonstrated in all the patients with obstructive sleep apnea, whereas no such narrowing was seen in the controls. In 11, the narrowing was at a single level, whereas in 22 patients two or more levels were affected. This study has shown that a structurally abnormal airway may serve as an anatomic substrate for the development of sleep apnea. On the basis of this evidence, uvulopalatopharyngoplasty has been performed in two patients with relief of symptoms in one.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 042429614

Download citation: RISBibTeXText

PMID: 6600549

DOI: 10.2214/ajr.140.3.543


Related references

Computed tomography demonstration of pharyngeal narrowing in adult obstructive sleep apnea. AJR (American Journal of Roentgenology) 140(3): 543-548, 1983

Sites of pharyngeal narrowing in patients with obstructive sleep apnea. American Review of Respiratory Disease 145(4 PART 2): A412, 1992

Pharyngeal narrowing and closing pressures in patients with obstructive sleep apnea. American Review of Respiratory Disease 148(3): 606-611, 1993

Site of pharyngeal narrowing predicts outcome of surgery for obstructive sleep apnea. American Review of Respiratory Disease 147(1): 182-189, 1993

Occlusion and narrowing of the pharyngeal airway in obstructive sleep apnea: evaluation by ultrafast spoiled GRASS MR imaging. Ajr. American Journal of Roentgenology 158(5): 1019-1024, 1992

CT comparison of primary snoring and obstructive sleep apnea syndrome: role of pharyngeal narrowing ratio and soft palate-tongue contact in awake patient. European Archives of Oto-Rhino-Laryngology 266(5): 727-734, 2008

Combination of Bernouilli effect producing maneuver-induced pharyngeal narrowing rate with body mass index as predictive tool for obstructive sleep apnea syndrome. Acta Oto-Laryngologica 128(5): 569-573, 2008

A practical method for describing patterns of tongue-base narrowing (modification of Fujita) in awake adult patients with obstructive sleep apnea. Journal of Oral and Maxillofacial Surgery 60(3): 252-60; Discussion 260-1, 2002

Pharyngeal narrowing/occlusion during central sleep apnea. Journal of Applied Physiology 78(5): 1806-1815, 1995

Obstructive sleep apnea in epilepsy patients: the Sleep Apnea scale of the Sleep Disorders Questionnaire (SA-SDQ) is a useful screening instrument for obstructive sleep apnea in a disease-specific population. Sleep Medicine 4(6): 517-521, 2003

The effect of maxillomandibular advancement on the pharyngeal airway and apnea-hypopnea index in obstructive sleep apnea syndrome patients. Journal of Oral and Maxillofacial Surgery 61(8-Supp-S): 77-0, 2003

Pharyngeal narrowing in end-stage renal disease: implications for obstructive sleep apnoea. European Respiratory Journal 30(5): 965-971, 2007

Pharyngeal size and shape during wakefulness and sleep in patients with obstructive sleep apnea. Qjm 72(268): 719-736, 1989

Association of naso-Oro-pharyngeal structures with the sleep architecture in suspected obstructive sleep apnea. Indian Journal of Otolaryngology and Head and Neck Surgery 66(Suppl 1): 81-87, 2014

Nonresponders to pharyngeal surgery for obstructive sleep apnea: insights from drug-induced sleep endoscopy. Laryngoscope 121(6): 1320-1326, 2011