[Actual conditions of the check system for the anesthesia machine before anesthesia. Do you really check?].

We experienced an accident related to insufficient checking of the anesthesia machine. The anesthesiologist could not ventilate manually after starting anesthesia. The cause of this case was a simple mistake of not moving the switch from ventilator to bag, but he thought severe asthma attack had occurred with the patient.

[A case report of severe laryngeal edema which occured before removal of a laryngeal mask airway].

A 41-year-old woman was scheduled for a partial hip arthroplasty. She was suffering from malignant rheumatoid arthritis for a long time and we recognized her difficult airway. After epidural catheterization, anesthesia was induced with fentanyl, thiopental, and 5% sevoflurane with oxygen.