Unilateral hypoglossal nerve palsy after the use of laryngeal mask airway (LMA) Protector

Background The laryngeal mask airway (LMAⓇ) ProtectorTM (Teleflex Medical Co., Ireland) is the latest innovation in the second generation of LMA devices. One distinguishing feature of this device is its integrated, color-coded cuff pressure indicator (Cuff PilotTM technology) which enables continuous cuff pressure monitoring and allows adjustments when necessary; this ensures patient safety due to better monitoring. Case We report a case of postoperative unilateral hypoglossal nerve palsy after uncomplicated use of the LMA Protector. To the best of our knowledge, this could be the second reported case. Conclusions This case demonstrates that anesthetists need to routinely measure cuff pressure and that the Cuff PilotTM technology is not a panacea for potential cranial nerve injury after airway manipulation.