title: [Leak of anesthetic gases inside the anesthesia machine].
abstract: We experienced the leak of anesthetic gases inside the anesthesia machine in spite of performing the leak test before its use. After induction of anesthesia, a laryngeal mask airway was inserted and the patient was ventilated manually. At the beginning we could not find any signs of machine troubles. High airway pressure occurred immediately after switching to the mechanical ventilation. Because we could not detect the details of the machine trouble, tidal volume was set lower and the surgery was continued. After surgery, we found a crack in a fresh gas circuit valve. We have to check the anesthesia machine regularly and know its duration of use.
authors.affiliation: Department of Anesthesia, Fujimura Hospital, Ageo 362-0035.
authors.forename: Tadashi
authors.initials: T
authors.lastname: Tanaka
authors.forename: Go
authors.initials: G
authors.lastname: Masaki
authors.forename: Hidetaka
authors.initials: H
authors.lastname: Kato
authors.forename: Eiichi
authors.initials: E
authors.lastname: Takita
authors.forename: Naosuke
authors.initials: N
authors.lastname: Sugai
mesh_terms: D000764:Anesthesia, Closed-Circuit / Q000295:instrumentation*; D018685:Anesthetics, Inhalation; D004868:Equipment Failure; D019544:Equipment Failure Analysis; D006801:Humans; D012121:Respiration, Artificial
chemical_list: D018685:Anesthetics, Inhalation