期刊
FRONTIERS IN MEDICINE
卷 9, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fmed.2022.980253
关键词
smell; taste; smell loss; taste loss; COVID-19
Post-COVID syndrome refers to the persistence of COVID-19 symptoms for longer than 12 weeks, with studies showing symptoms related to sensory organs continue to be present. This systematic review aimed to examine the prevalence of persistent symptoms such as anosmia, ageusia, and sensory symptoms in the eyes and ears. The analysis found a significant prevalence of these symptoms, highlighting the need for further research into the causes behind these persistent issues.
Post-COVID syndrome can be defined as symptoms of COVID-19 that persist for longer than 12 weeks, with several studies reporting persistent symptoms relating to the sensory organs (eyes, ears, and nose). The aim of this systematic review was to examine the prevalence of persistent anosmia, hyposmia, ageusia, and hypogeusia, as well as eye/vision and ear/hearing related long-COVID symptoms. Authors searched the electronic databases from inception to November 2021. Search terms included words related to long-COVID, smell, taste, eyes/vision, and ears/hearing, with all observational study designs being included. A random effects meta-analysis was undertaken, calculating the prevalence proportions of anosmia, hyposmia, ageusia, and hypogeusia, respectively. From the initial pool, 21 studies met the inclusion criteria (total n 4,707; median n per study 125; median age = 49.8; median percentage female = 59.2%) and 14 were included in the meta-analysis The prevalence of anosmia was 12.2% (95% CI 7.7-16.6%), hyposmia 29.9% (95% CI 19.9-40%), ageusia 11.7% (95% CI 6.1-17.3%), and hypogeusia 31.2% (95% 16.4-46.1%). Several eye/vision and ear/hearing symptoms were also reported. Considering that changes in the sensory organs are associated with decreases in quality of life, future research should examine the etiology behind the persistent symptoms.
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