Anesthetic management with remimazolam for a patient with hereditary angioedema : a case report

Background : Hereditary angioedema (HAE), a genetic disorder caused by C1-inhibitor deficiency or dysfunction, may cause mucosal edema in the upper airway during tracheal intubation and extubation. Case Report : A 57-year-old man with HAE and a history of laryngeal edema, scheduled to undergo cervical laminoplasty under general anesthesia. General anesthesia was induced by continuous injection of remimazolam and remifentanil, during which manual mask ventilation and intubation were performed without difficulty. The patient was extubated under deep anesthesia. After emergence from general anesthesia, he had no significant upper airway edema and was treated with a C1-inhibitor seven hours post-surgery because of slight tongue swelling. No additional airway edema was observed, and the patient was discharged from the intensive care unit the following day. Conclusions : Deep anesthesia tracheal extubation with remimazolam may be effective in preventing upper airway edema during anesthetic management in patients with HAE.