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Updated: Aug 26, 2026

Topical Airway Anesthesia for Awake-endoscopic Intubation Using the Spray-as-you-go Technique with High Oxygen Flow
Published on: January 13, 2017
[Toxicity of topical administration of lidocaine]
J M Gómez Martín-Zarco1, J Lumbreras Fernández de Córdoba, P Ortiz García
1Departamento de Otorrinolaríngología, Clínica la Milagrosa, Madrid.
Abstract:
It is frequently described in international literature the possibility of toxicity by local anesthesics. The lidocaine is one of them. The problems with its local use are more frequent and known but topic toxicity is also possible. We want to describe a case of toxicity by topical administration of lidocaine (Xylocain) which caused neurological disease with convulsions, and cardiological disease with ventricular fibrillation, in a patient who came for a thyroplasty. Patient's evolution was satisfactory.
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