Postinfectious Olfactory Complaints: A Follow-up Study
Int. arch. otorhinolaryngol. (Impr.)
; 26(4): 657-660, Oct.-Dec. 2022. tab
Article
in En
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LILACS-Express
| LILACS
| ID: biblio-1421646
Responsible library:
BR1.1
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.
Full text:
1
Collection:
01-internacional
Database:
LILACS
Type of study:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Language:
En
Journal:
Int. arch. otorhinolaryngol. (Impr.)
Journal subject:
OTORRINOLARINGOLOGIA
Year:
2022
Document type:
Article
Affiliation country: