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Updated: Jul 18, 2026
05:25
Identification and Protection of the Recurrent Laryngeal Nerve during Transoral Robotic Thyroidectomy
Published on: October 24, 2025
[General anesthesia for thyroplasty employing voice test].
Takao Muto1, Kazuhiro Nakamura, Takeshi Sagara
1Department of Anesthesia, Tokyo Medical University, Hachioji Medical Center.
Masui. the Japanese Journal of Anesthesiology
|November 30, 2006
Summary
This study presents a novel anesthetic technique for thyroplasty using a voice test. The method ensures patients awaken quickly for vocal cord assessment, improving surgical outcomes and patient comfort.
Area of Science:
- Anesthesiology
- Otolaryngology
- Surgical Procedures
Context:
- Thyroplasty is a surgical procedure to enhance voice quality in patients with unilateral vocal cord paralysis.
- Accurate vocal cord positioning is crucial and typically assessed via patient phonation.
- This requires the patient to be awake and cooperative during the procedure.
Purpose:
- To describe and evaluate a new anesthetic technique for thyroplasty that incorporates a voice test.
- To ensure optimal surgical conditions and patient comfort during the procedure.
Summary:
- Anesthesia was induced using pentazocine and a continuous propofol infusion, with dosage adjusted for spontaneous ventilation.
- Propofol infusion was stopped at the precise moment of correct vocal cord displacement, allowing immediate patient awakening for phonation.
- The average surgical and anesthesia times were 98 and 139 minutes, respectively, with patients awakening within approximately 5 minutes.
Impact:
- This anesthetic approach facilitates immediate patient cooperation for vocal cord assessment during thyroplasty.
- The technique provides optimal operating conditions and ensures patient comfort without significant complications.
- It offers a reliable method for improving voice outcomes in patients with vocal cord paralysis.
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