When regular medical management of a case of rhinosinusitis has not led to satisfactory results, functional endoscopic sinus surgery may be considered. The goal of administering the 22-item Sino-Nasal Outcome Test is to predict the extent of the patient's post-surgical improvement.
The patient rates each of the 22 items from 0 to 5, 0 being a item not affecting the patient, and 5 “as bad as it can be”. A total of 0 to 110 points is thus possible. The test is given before and after surgery. The greater the decline in the patient's score, pre-test minus post-test, the greater the improvement in the patient's quality of life.
Because the items vary in their applicability and reliability, an experienced practitioner can get much more from the test than the raw score alone provides.
There was an earlier SNOT-20 test.
C. Hopkins, S. Gillett, R. Slack, V. J. Lund and J. P. Browne.
Psychometric validity of the 22-item Sinonasal Outcome Test.
Clinical Otolaryngology, official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery. vol. 34, pages 447–454, 2009.
Joshua L. Kennedy, Matthew A. Hubbard, Phillip Huyett, James T. Patrie, Larry Borish, and Spencer C. Payne.
Sino-nasal outcome test (SNOT-22): A predictor of postsurgical improvement in patients with chronic sinusitis.
Annals of Allergy, Asthma & Immunology, vol 111, issue 4, pages 246-251.e2, October 1, 2013.
A copy of the test:
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Last revised: 5 May 2020.