Management of new onset loss of sense of smell during the COVID-19 pandemic - BRS Consensus Guidelines

Objectives The primary aim of the study is to provide recommendations for the investigation and management of patients with new onset loss of sense of smell during the COVID-19 pandemic. Design After undertaking a literature review, we used the RAND/UCLA methodology with a multi-step process to reach consensus about treatment options, onward referral, and imaging. Setting and participants An expert panel consisting of 15 members was assembled. A literature review was undertaken prior to the study and evidence was summarised for the panellists. Main outcome measures The panel undertook a process of ranking and classifying appropriateness of different investigations and treatment options for new onset loss of sense of smell during the COVID-19 pandemic. Using a 9-point Likert scale, panellists scored whether a treatment was: Not recommended, optional, or recommended. Consensus was achieved when more than 70% of responses fell into the category defined by the mean. Results Consensus was reached on the majority of statements after 2 rounds of ranking. Disagreement meant no recommendation was made regarding one treatment, using Vitamin A drops. Alpha-lipoic acid was not recommended, olfactory training was recommended for all patients with persistent loss of sense of smell of more than 2 weeks duration, and oral steroids, steroid rinses, and omega 3 supplements may be considered on an individual basis. Recommendations regarding the need for referral and investigation have been made. Conclusion This study identified the appropriateness of olfactory training, different medical treatment options, referral guidelines and imaging for patients with COVID-19-related loss of sense of smell. The guideline may evolve as our experience of COVID-19 develops.

Automated summary

This study aims to provide recommendations for the investigation and management of patients with new onset loss of sense of smell during the COVID-19 pandemic. A panel of 15 experts used the RAND/UCLA methodology to reach consensus on treatment options, referral guidelines, and imaging. Consensus was achieved on most statements after 2 rounds of ranking, with olfactory training recommended for all patients with persistent loss of sense of smell, and individual consideration for oral steroids, steroid rinses, and omega 3 supplements.