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Long-term voice changes after thyroidectomy: Results from a validated survey.

Chun Li1, Betzamel Lopez2, Scott Fligor3

  • 1Section of Endocrine Surgery, Division of Surgical Oncology, Department of Surgery, Beth Israel Deaconess Medical Center, Boston, MA; Harvard Medical School, Boston, MA.

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Long-term dysphonia (voice changes) affects over 30% of patients after thyroid surgery, even without nerve damage. Further research is needed to understand the causes and impact on quality of life.

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Area of Science:

  • Otolaryngology
  • Endocrinology
  • Surgical Outcomes

Background:

  • Dysphonia can persist long after thyroid surgery.
  • Nerve injury is not always apparent in cases of persistent voice changes.

Purpose of the Study:

  • To evaluate the prevalence and impact of long-term dysphonia after thyroidectomy.
  • To assess voice quality using a validated survey in patients without documented nerve injury.

Main Methods:

  • A telephone survey using the Voice Handicap Index-10 (VHI-10) was administered to 308 patients who underwent thyroidectomy.
  • Patients with documented nerve injury were excluded from the study.
  • The mean VHI-10 score and prevalence of subjective dysphonia were analyzed.

Main Results:

  • 37% of patients reported subjective dysphonia, with a mean VHI-10 score of 7.1.
  • 7.1% of patients had a VHI-10 score above 11, indicating significant voice handicap.
  • Common complaints included unpredictable voice clarity, difficulty in noisy environments, and vocal strain.

Conclusions:

  • Over 30% of thyroidectomy patients without nerve injury experience long-term dysphonia.
  • Further research is required to determine the etiology of post-thyroidectomy dysphonia.
  • The impact of these voice changes on patients' quality of life warrants investigation.