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Voice changes and thyroid surgery: is pre-operative indirect laryngoscopy necessary?
The Australian and New Zealand Journal of Surgery
|October 9, 1999
Summary
Indirect laryngoscopy (IDL) is a useful pre-operative tool for thyroid surgery patients with voice symptoms, but its value for asymptomatic individuals is questionable. Advanced phoniatric tests offer superior vocal cord pathology detection.
Area of Science:
- Otolaryngology
- Thyroid Surgery
- Vocal Cord Physiology
Background:
- Indirect laryngoscopy (IDL) is a standard pre-operative examination before thyroid surgery.
- Its primary goal is to identify pre-existing vocal cord pathologies.
Purpose of the Study:
- To investigate pre-operative and post-operative voice changes in thyroid surgery patients.
- To analyze the findings of indirect laryngoscopy (IDL) in this cohort.
Main Methods:
- Retrospective chart review of 201 patients undergoing thyroid surgery.
- Analysis of pre-operative voice symptoms and IDL results.
Main Results:
- 9% of patients reported pre-operative voice symptoms, with 22% showing IDL abnormalities.
- 4% of documented IDLs revealed vocal cord pathology in asymptomatic patients, including recurrent laryngeal nerve palsy.
Conclusions:
- IDL is a useful, though imperfect, screening tool for pre-operative voice symptoms in thyroid surgery candidates.
- The routine use of pre-operative IDL for asymptomatic patients is of debatable clinical value.
- More advanced phoniatric tests may offer superior diagnostic sensitivity for vocal cord pathology.