Postinfectious Olfactory Complaints: A Follow-up Study
Int. arch. otorhinolaryngol. (Impr.)
;
26(4): 657-660, Oct.-Dec. 2022. tab
Article
in English
|
LILACS-Express
| LILACS
| ID: biblio-1421646
ABSTRACT
Abstract Introduction Acute upper respiratory infection (AURI) is the most common cause of postinfectious olfactory dysfunction (PIOD). Objective We investigated the prevalence of PIOD in a large group of patients reporting persistent smell impairment perception after the AURI resolution. Methods Olfactometry was performed within 1 month after the common cold resolution and after 1 year in 467 (299 males, mean age 41.7 years) outpatients. The Sniffin' Sticks olfactory test (Burghart instruments, Wedel, Germany) was used. Results Anosmia was documented in 28 (6%) patients, hyposmia in 33 (7%), and cacosmia in 55 (11.7%). After 1 year, PIOD improved in 82 (79.6%) patients re-tested. Conclusion The current study demonstrated that persistent olfactory dysfunction is a relevant symptom in patients with AURI, even though many patients had normal olfactometry. Thus, smell impairment deserves careful attention and requires objective documentation.
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Index:
LILACS (Americas)
Type of study:
Observational study
/
Prognostic study
/
Risk factors
Language:
English
Journal:
Int. arch. otorhinolaryngol. (Impr.)
Journal subject:
Otolaryngology
Year:
2022
Type:
Article
Affiliation country:
Italy
Institution/Affiliation country:
Casa di Cura Villa Montallegro/IT
/
International Federation ORL Societies (IFOS)/IT
/
Università Cattolica del Sacro Cuore/IT
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