Prognosis of olfactory and gustatory dysfunctions in COVID-19 Patients: A case series

Abstract

Olfactory and gustatory dysfunctions are common presentations in COVID-19 patients. We present three patients who received smell and taste tests after recovery. The smell test suspected persistent impairment of olfactory function in these patients. The report proposes continued evaluation of olfactory function by a smell test in COVID-19 patients.

The Sniffing Bead System as a Useful Diagnostic Tool for Olfactory Dysfunction in COVID-19

“…10) However, most studies on olfactory dysfunction in COVID-19 patients are based on subjective discomfort, and the proportion of patients exhibiting actual disturbances and smell recovery is unknown. 9) Therefore, objective measurement of olfactory dysfunction without the risk of virus spread is important for the early diagnosis of olfactory dysfunction in COVID-19 patients. A sniffing bead system, a one-off system based on identifying familiar odors, may be helpful (as in this case).…”

Olfactory dysfunction in COVID-19: pathology and long-term implications for brain health

“…Some reported no meaningful effects on average taste test scores [22][23][24], whereas others reported prevalence rates of 12% [25], 18% [26], 23% [27], and 26% [28].…”