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Year: 2001  Vol. 5   Num. 3  - July/Sept Print:
Original Article
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Technique for Injection of Botulinum Toxin Through the Nasolaryngoscope
Técnica de Injeção da Toxina Botulínica Através do Nasofibroscópio
Author(s):
Domingos H. Tsuji*, Luiz U. Sennes**, Rui Imamura***, Henry U. Koishi****
Key words:
Botulin toxin, injection, nasolaryngoscope.
Abstract:

Introduction: The botulinum toxin injection guided by eletromiography into the thyroarytenoid muscle has been the most accepted treatment for adductor spasmodic dysphonia. This method, however, requires the eletromiography equipment and a trained team for its use, which may not be available in some institutions. Aim: The aim of this work is to make a detailed description of the injection through the nasolaryngoscope, pointing out important factors related to the success and also to some failures. Material and method: In face of those difficulties, we introduced the technique for injection of botulinum toxin through the flexible nasolaryngoscope. Conclusion: This is the most used technique at the Clinics Hospital of São Paulo University Medical School since 1994 and has shown to be very efficient and easy to be handled.

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