抄録
A 13-year-old, spayed female, Japanese domestic cat was presented with ureteral calculus and showed symptoms of ureteral obstruction. Ureterotomy was planned, and the cat was intubated under general anesthesia. Five minutes after intubation, we could palpate subcutaneous emphysema at lower body. Radiography demonstrated pneumomediastinum, pneumothorax, pneumoretroperitoneum and subcutaneous emphysema. Tracheal rupture was suspected, and then tracheal tube was advanced deeper, and thoracocentesis was done until air could not be aspirated. After the treatment the cat was maintained with synchronized intermittent mandatory ventilation for 90 minutes. As air leakage and pneumothorax did not recur, ureterotomy was performed routinely. Extubation and awaking from anesthesia were very favorable, and there were no symptoms of recurrence until date of discharge.
