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Olfactory dysfunction in patients with head trauma.

Megumi Fujii1, Keijiro Fukazawa, Sadamu Takayasu

  • 1Department of Otorhinolaryngology, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo 663-8501, Japan. megumi@hyo-med.ac.jp

Auris, Nasus, Larynx
|January 5, 2002
PubMed
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Local steroid injections offer limited recovery for post-traumatic olfactory dysfunction. This study tracked olfactory acuity in head trauma patients, showing some improvement after treatment.

Area of Science:

  • Otorhinolaryngology
  • Neuroscience

Background:

  • Post-traumatic olfactory dysfunction is a common consequence of head injuries.
  • Limited data exists on the follow-up of olfactory acuity in these patients.

Purpose of the Study:

  • To investigate the short-term effects of local steroid injections on olfactory function in patients with post-traumatic olfactory dysfunction.

Main Methods:

  • Olfactory function was assessed in 27 head trauma patients using T&T olfactometry and the Alinamin test.
  • Patients received local injections of suspended steroid solution into the nasal mucosa.
  • Olfactory tests were repeated post-treatment in 18 patients.

Main Results:

  • Prior to treatment, 61.5% of patients had anosmia and 19.2% had severe hyposmia.

Related Experiment Videos

  • Post-treatment, T&T olfactometry showed improvement rates of 35.3% for recognition and 23.5% for detection thresholds.
  • The Alinamin test was positive in 30.8% of patients post-treatment.

    • Conclusions:

    • Local steroid injections can lead to a limited degree of olfactory recovery in some patients with post-traumatic olfactory dysfunction.
    • The observed recovery occurred within a relatively short treatment period.