Abstract
Sore throat is one of the postoperative upper airway problems that may occur after general anesthesia using endotracheal tube or laryngeal mask airway. Dysphagia is one of the patient’s complaints that belong to the generic term of “sore throat”. A 32-year-old gentleman presented with dysphagia was scheduled for upper gastro-intestinal endoscopy which revealed pharyngeal ulcer. The patient had undergone right knee arthroscopy under general anesthesia using a laryngeal mask airway three days ago. The problem was managed with oral non-steroidal anti-inflammatory drugs (NSAIDs) and benzydamine hydrochloride mouthwash. The patient improved slowly over a 2-week period. An over-inflated LMA used for prolonged anesthesia was supposed to produce pressure necrosis and ulceration at the pharynx. Minimum volume of air that prevents leakage should be used for inflation of LMA cuffs. Routine monitoring of LMA cuff pressure should join other ASA standard monitors to avoid such postoperative complications.
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