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A case against teflon injection to lower vocal pitch.
The Journal of Speech and Hearing Disorders
|November 1, 1975
Summary
Teflon injection to lower vocal pitch caused severe hoarseness and failed to reduce fundamental frequency. This vocal fold injection technique is complex and not recommended without thorough study.
Area of Science:
- Otolaryngology
- Speech Science
- Phonosurgery
Background:
- Vocal fold injection is a surgical technique used to alter voice pitch and quality.
- Teflon injection has been employed to increase vocal fold thickness and potentially lower pitch.
Observation:
- A patient presented with severe hoarseness three months post-Teflon injection of both vocal folds.
- The procedure was intended to lower an abnormally high vocal pitch.
Findings:
- Pitch analysis via voice spectrography showed no significant reduction in fundamental frequency.
- Hoarseness was attributed to uneven glycerin absorption, vocal fold inflammation, and asynchronous vibration.
Implications:
- Vocal fold injection for pitch modification is a complex procedure with potential complications.
- This technique is not advised until all parameters and risks are fully understood and studied.