**1. Introduction**

74 Sleep Disorders

[24] Babar-Craig H, Rajani N, Bailey P, Kotecha B. Validation of sleep nasendoscopy for

[25] Hewitt RJD, Dasgupta A, Singh A, Dutta C, Kotecha B. Is sleep nasendoscopy a

[26] Campanini A, Canzi P, De Vito A, Dallan I, Montevecchi F. Vicini C. Awake versus

[27] Georgalas C, Garas G, Hadjihannas E, Oostra A (2010) Assessment of obstruction level

obstruction? Eur Arch Otorhinolaryngol 2009;266:691-697.

Otorhinolaryngologica Italica 2010;30:73-77.

approach. J Laryngol Otol 2010;124: 1-9.

(Supp) 89-90.

assessment of snoring with BIS monitoring, Clin Otolaryngol Allied Sci 2009;34:

valuable adjunct to clinical examination in the evaluation of upper airway

sleep endoscopy: personal experience in 250 OSAHS patients. Acta

and selection of patients for obstructive sleep apnoea surgery: an evidence based

This paper will review the prevalence, pathophysiology, clinical picture, diagnostic advances, natural history, morbidity and management of upper airway resistance syndrome (UARS). The aim is to improve our knowledge about this disease and help to identify patients with UARS.
