Study suggests lost of smell can last upto 4 weeks or months for recovered patients

Several coronavirus patients that recovered never retrieved ir sense of smell, one of symptoms of vel coronavirus, according to study, which was published in JAMA Otolaryngology – He and Neck Surgery. Asmia, loss of smell, occurred in more than half of COVID-19 patients as a cardinal symptom, however,  smell "dysfunction" did t see recovery in 4 weeks or even lasted months and in some cases, patients reported a long-term inability to smell. 

An Italian-led team published study after y accumulated data from at least 187 patients who were treated for COVID-19 in March at Treviso Regional Hospital in Italy at peak of its outbreak. Researchers found that 113 of patients, about two-thirds, reported asmia and dysgeusia that lasted for months. While 49 per cent of patients fully regained ir sense of smell or taste, approximately half ted that y h yet to fully recover ir lost senses of smell. 

Although altered sense of smell showed an improvement in most cases during course of disease, se symptoms were still most frequently reported by patients with COVID-19 4 weeks after testing,  researchers wrote. 

An assistant professor of otolaryngology-he and neck surgery at Johns Hopkins University in Baltimore said, first, re were anecdotal reports of COVID-19 patients who h lost ir ability to smell or taste. However, he ded, studies started to confirm re was a lot of truth to it. Citing a study of patients hospitalized for COVID-19 that used objective tests, Rowan said, nearly all patients, 98 per cent, showed some loss of smell. But some more severe than ors. President of asmie.org, a French group designed to help sufferers, was quoted saying in a report that asmia cut people off from nearly all smells of life, it was a torture for most. 

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Patients experience 'cleft syndrome'

Maillard pointed out, that recovered patients t just reported a loss of olfactory skills but also due to asmia y were unable to smell smoke from a fire, gas from a leak, or a poorly washed dustbin, according to a study. A 36-year-old attorney from New Orleans, Louisiana who h recovered from coronavirus h a persistent symptom of asmia since March 30. Coronavirus survivor, Meek, couldn’t tell even after three months later tastes like salty and sweet. In a recent study in a journal Conversation, Dr. Jane Parker, an associate professor of flavour chemistry at University of Reing and Dr. Simon Gane, a rhilogist at  University of London said coronavirus patients experience “cleft syndrome” which is swollen tissues and mucus block of olfactory cleft that obstructed sense of smell in patients. 

Furr, Milliard ted that around 80 percent of COVID-19 patients recovered spontaneously in less than a month and often even faster, in eight to 10 days. However,  disease destroyed some of patients’ olfactory neurons,  ones that detect smells, for long term. But good news was that se neurons were able to regenerate. In a study, "CovidORL", conducted at two Paris hospitals to investigate phemen, testing how well different se washes can cure asmia, experts found “hope”. A cortisone-based treatment has proved effective in treating post-cold instances of asmia, while ar method of olfactory re-education provided effectiveness. 

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(All Ims Credit: JAMA Otolaryngology – He and Neck Surgery Study)