Retronasal olfactory testing in early diagnosed and suspected COVID-19 patients: a 7-week follow-up study.
Bernhard PremDavid Tianxiang LiuGerold BesserBertold RennerChristian Albert MuellerPublished in: European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery (2021)
The current investigation revealed significant improvements in subjective smell and flavour perception over the course of 7 weeks in proven and suspected COVID-19 patients suffering from acute OD. However, objectively measured ROF based on a screening test revealed no improvements within the same time period.