Plasma Treatment Restores Smell After Head Injuries: Promising Study
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New Treatment Shows Promise in Restoring Smell After Brain Injury
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| euronews
A novel treatment is offering hope to individuals who have lost their sense of smell (anosmia) following brain injuries. Results from a study published in the October issue of the journal Otolaryngology – Head and Neck Surgery demonstrate significant improvement in olfactory function for a subset of patients.
The Study and its Findings
The study, led by Dr.Jerome Lucien of the University of Mons, Belgium, involved 33 patients who experienced loss of smell due to brain injuries. Participants underwent a trial of the new treatment, which involves injections. Approximately one-third of the patients experienced significant improvement in their ability to smell after just three months of treatment. The full study details are available in otolaryngology – Head and Neck Surgery.
Participants self-reported a noticeable improvement in their olfactory capabilities following the injections. This suggests the treatment directly impacts the neural pathways responsible for smell.
the Impact of Anosmia
Loss of smell, or anosmia, can have a profound impact on a person’s quality of life. Beyond the inability to enjoy food flavors, it can lead to safety concerns (e.g., detecting gas leaks or spoiled food) and contribute to depression and anxiety. According to research, between 17% and 27% of individuals with anosmia may partially regain their sense of smell over time naturally, but many face permanent loss without effective intervention.
The prevalence of smell loss following traumatic brain injury (TBI) is significant. The exact percentage varies depending on the severity of the injury, but studies indicate that a substantial proportion of TBI patients experience some degree of olfactory dysfunction.
Current Treatment Options and Challenges
Currently, treatment options for anosmia are limited and often ineffective. These include:
- Olfactory Training: A rehabilitation technique involving repeated exposure to a set of strong odors.
- Corticosteroids: May be used to reduce inflammation, but their effectiveness is often limited.
- surgery