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Related Experiment Video

Updated: May 3, 2026

Olfactory Neurons Obtained through Nasal Biopsy Combined with Laser-Capture Microdissection: A Potential Approach to Study Treatment Response in Mental Disorders
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Effect of laser treatment on olfactory dysfunction.

Onder Göktas1, Larissa Lau1, Franca Fleiner1

  • 1Department of Otorhinolaryngology, Head and Neck Surgery, Charité - University Medicine Berlin, Campus Charité Mitte, Charitéplatz 1, 10117 Berlin, Germany.

Indian Journal of Otolaryngology and Head and Neck Surgery : Official Publication of the Association of Otolaryngologists of India
|February 18, 2014
PubMed
Summary

Outpatient diode laser inferior turbinate reduction (ITR) improved nasal airflow but did not significantly enhance olfactory function in patients with olfactory disorders. The procedure offered high patient satisfaction and minimal pain.

Keywords:
Diode laserLaser treatmentNasal obstructionOlfactory disorderRhinomanometryTDI

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Area of Science:

  • Otolaryngology
  • Rhinology
  • Surgical Innovation

Background:

  • Olfactory disorders significantly impact patient quality of life.
  • Therapy-refractory cases often require advanced treatment options.
  • Inferior turbinate hypertrophy can contribute to nasal obstruction and olfactory dysfunction.

Purpose of the Study:

  • To assess the efficacy of outpatient diode laser inferior turbinate reduction (ITR) for therapy-refractory olfactory disorders.
  • To evaluate the impact of ITR on both olfactory function and nasal airflow.
  • To determine patient satisfaction and pain levels associated with the procedure.

Main Methods:

  • Prospective clinical study involving 20 patients with olfactory disorders and 10 controls.
  • Videoendoscopic-guided diode laser ITR performed under topical anesthesia.
  • Assessment of subjective (VAS) and objective (Sniffin' Sticks, rhinomanometry) olfactory function and nasal airflow pre- and post-surgery (2 months).

Main Results:

  • No significant improvement in objective olfactory function (TDI score) was observed.
  • Subjective olfactory disorder VAS showed a slight improvement (2.95 to 3.65, P=0.04).
  • Significant improvements in subjective nasal airflow (VAS 5.05 to 6.25, P<0.0005) and objective nasal airflow (353.77 to 443.50, P=0.007) were noted in both groups.
  • High postoperative patient satisfaction (median 8/10) and low intraoperative pain (median 0/10) were reported.

Conclusions:

  • Outpatient diode laser ITR is effective for improving nasal airflow.
  • The procedure does not significantly restore objective olfactory function in patients with olfactory disorders.
  • ITR offers a safe and satisfactory treatment option for nasal obstruction symptoms.