Neuromuscular Block Monitoring in Patients With Facial Rejuvenation: A Case Report.

Neuromuscular blocking agents are used during general anesthesia to optimize intubating and surgical conditions. Determining the level of neuromuscular blockade and ensuring adequate reversal are crucial to prevent anesthesia-related postoperative residual weakness and its associated complications. We present a 33-year-old woman who underwent laparoscopic appendectomy. Facial nerve stimulation failed to elicit response to neurostimulation, but subsequent ulnar nerve stimulation showed train-of-four count of 4 without fade in the adductor pollicis muscle. It was later determined that the patient recently received botulinum toxin treatment. Facial nerve stimulation is not a reliable method for neuromuscular blockade monitoring.