Abstract

Percutaneous silicone injection for unilateral recurrent laryngeal nerve paralysis is reported. The viscosity of silicone is 1000c/s, mixed with phycon 6500 and phycon 6500 additive. The injectable instruments are 2.5ml disposable syringe and 21G needle. The position of the patient is supine. The monitors for injection are a trans-nasal laryngofiberscopy and the voice change of the patient. The route of the injection is selected in three ways, from the lower edge of the thyroid cartilage, from the thyroid notch and through the crico-thyroid membrane.From 1985 to 1991, 40 cases were treated by percutaneous injection in successful results except only one. The advantages of this method are simple for the operator and small discomfort for the patients.

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