The efficacy of olfactory training in improving olfactory function: a meta-analysis.
Eur Arch Otorhinolaryngol
; 281(10): 5267-5284, 2024 Oct.
Article
em En
| MEDLINE
| ID: mdl-38802578
ABSTRACT
PURPOSE:
Study the efficacy of olfactory training in smell recovery.METHODS:
An extensive search was performed through different databases in order to find articles analyzing the efficacy of olfactory training as a treatment for olfactory dysfunction. Methodological quality of primary studies within the final sample was assessed following PRISMA guidelines. Standardized mean differences in pre-post olfactory training groups, and also in experimental-control and pre-follow up if possible, were computed by Hedges' g effect size statistic. Each effect size was weighted by its inverse variance.RESULTS:
Final sample was composed of 36 articles (45 pre-post effect sizes). Contrasts were performed separately for odor identification, odor discrimination, odor threshold and general olfactory function. Moderate to large and heterogeneous effect was obtained for olfactory function (g = 0.755, k = 45, SE = 0.093, CI 95% = [0.572, 0.937]), different moderators had a significant effects, such as, training duration, age and anosmia diagnosis.CONCLUSION:
Olfactory training was found to have a positive and significant effect on rehabilitating the olfactory function.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Olfato
/
Transtornos do Olfato
Limite:
Humans
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article