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

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


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