Brazilian Journal of Anesthesiology
Brazilian Journal of Anesthesiology
Case Report

Unilateral lingual nerve and hypoglossal nerve injury caused by a novel laryngeal mask airway: a case report

Lesão unilateral do nervo lingual e do nervo hipoglosso causada por uma nova via aérea com máscara laríngea: relato de caso

Caixia Li, Yi Lou, Yafan Shen, Su Jiang, Hua Xu

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Cranial nerve injury by a laryngeal mask airway is rare but a serious complication. The nerve injuries must be prevented during the intubation using a laryngeal mask airway. We report a female patient who complained of tongue numbness, slurred speech, and slight difficulty in swallowing solid food after a hand surgery. She was then diagnosed with unilateral lingual nerve and hypoglossal nerve injuries. Extreme head rotation, relatively small oral cavity, and wide rigid composition at the lower part of the novel laryngeal mask probably resulted in cranial nerve injury.


Case report;  Complication;  Nerve injury;  The laryngeal mask airway


A lesão do nervo craniano por uma máscara laríngea é rara, mas uma complicação séria. As lesões nervosas devem ser evitadas durante a intubação com máscara laríngea. Relatamos uma paciente do sexo feminino que se queixou de dormência na língua, fala arrastada e leve dificuldade para engolir alimentos sólidos após uma cirurgia na mão. Ela foi então diagnosticada com lesão não-bilateral do nervo lingual e do nervo hipoglosso. Rotação extrema da cabeça, cavidade oral relativamente pequena e composição ampla e rígida na parte inferior da nova máscara laríngea provavelmente resultaram em lesão do nervo craniano.


Relato de caso; Complicação; Lesão do nervo craniano; A máscara laríngea das vias aéreas


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