Abstract
Summary Percutaneous electromyography (EMG)-guided technique of botulinum toxin (BT) injection of the larynx evolved from similar techniques for extraocular muscle injection in strabismus, as well as from experience with diagnostic laryngeal EMG. This technique permits rapid accurate injection of BT into the laryngeal muscles. Although usually injected into the thyroarytenoid muscle, BT can also be directed to the posterior cricoarytenoid and cricothyroid muscles. Complications are minimal and of short duration.
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