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Functional results after CO2 laser surgery compared with conventional phonosurgery.
K Hörmann1, A Baker-Schreyer, A Keilmann
1Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Mannheim, Germany.
The Journal of Laryngology and Otology
|July 9, 1999
Summary
This study compared CO2 laser phonosurgery to cold phonosurgery for benign vocal fold lesions. Cold surgery showed statistically significant improvements in vocal function four months post-operation, unlike laser surgery.
Area of Science:
- Otolaryngology
- Laryngeal Surgery
- Voice Science
Background:
- Benign vocal fold lesions require surgical intervention.
- CO2 laser and cold techniques are used for phonosurgery.
- Comparing functional outcomes is crucial for treatment selection.
Purpose of the Study:
- To critically evaluate post-operative vocal function after CO2 laser phonosurgery versus cold phonosurgery.
- To compare the efficacy of two surgical methods for benign vocal fold lesions.
Main Methods:
- Prospective randomized study involving 44 patients with benign vocal fold lesions.
- Patients were divided into CO2 laser phonosurgery (21) and cold phonosurgery (23) groups.
- Vocal function was assessed pre-operatively and at 1 week, 1 month, and 4 months post-operatively using videolaryngoscopy, phonation, and voice field analysis.
Main Results:
- Both surgical groups demonstrated improved vocal function at four months compared to pre-operative status.
- The improvement in vocal function was statistically significant only in the cold phonosurgery group.
- No statistical significance was reported for the CO2 laser group's functional improvement.
Conclusions:
- Cold phonosurgery appears to yield more statistically significant improvements in vocal function for benign vocal fold lesions.
- Further research may be needed to optimize CO2 laser techniques or confirm findings.