%0 Journal Article %T The Prognostic Value of Olfactory Dysfunction in Patients with COVID-19: The COVIDORA Study. %A Hamel AL %A Delbos L %A Natella PA %A Radulesco T %A Alexandru M %A Bartaire E %A Bartier S %A Benoite G %A Bequignon E %A Castillo L %A Canouï-Poitrine F %A Carsuzaa F %A Corré A %A Coste A %A Couloigner V %A Daveau C %A De Boissieu P %A De Bonnecaze G %A De Gabory L %A Debry C %A Deraedt S %A Dufour X %A El Bakkouri W %A Gilain L %A Hans S %A Hautefort C %A Hermann R %A Jankowski R %A La Croix C %A Lecanu JB %A Malard O %A Michel J %A Nguyen Y %A Nevoux J %A Papon JF %A Patron V %A Prigent M %A Pruliere-Escabasse V %A Renaud M %A Rumeau C %A Salmon D %A Saroul N %A Serrano E %A Nhung Tran Khai C %A Tringali S %A Truy E %A Vandersteen C %A Verillaud B %A Veil R %A Fieux M %J Life (Basel) %V 14 %N 3 %D 2024 Feb 22 %M 38541618 %F 3.251 %R 10.3390/life14030293 %X BACKGROUND: Among all studies describing COVID-19 clinical features during the first wave of the pandemic, only a few retrospective studies have assessed the correlation between olfac-tory dysfunction (OD) and the evolution of disease severity. The main aim was to assess whether OD is a predictive factor of COVID-19 severity based on the patient's medical management (outpa-tient care, standard hospital admission, and ICU admission).
METHODS: A national, prospective, mul-ticenter cohort study was conducted in 20 public hospitals and a public center for COVID-19 screen-ing. During the first wave of the pandemic, from 6 April to 11 May 2020, all patients tested positive for COVID-19 confirmed by RT-PCR underwent two follow-up ENT consultations within 10 days of symptom onset. The main outcome measures were the evolution of medical management (out-patient care, standard hospital admission, and ICU admission) at diagnosis and along the clinical course of COVID-19 disease.
RESULTS: Among 481 patients included, the prevalence of OD was 60.7%, and it affected mostly female patients (74.3%) under 65 years old (92.5%), with fewer comor-bidities than patients with normal olfactory function. Here, 99.3% (290/292) of patients with OD presented with non-severe COVID-19 disease. Patients reporting OD were significantly less hospi-talized than the ones managed as outpatients, in either a standard medical unit or an ICU. Conclu-sions: As regards the clinical course of COVID-19 disease, OD could predict a decreased risk of hospitalization during the first wave of the pandemic.