[A case of respiratory distress due to massive pleural effusion after surgery for ovarian tumor].

A 59-year-old woman with ovarian tumor was scheduled for radical hysterectomy under general anesthesia. Preoperative examination showed massive ascites and slight pleural effusion. Since respiratory status had improved by oxgen therapy, she underwent a surgery as scheduled, although she complained of slight dyspnea and low Sp(O2). Induction of anesthesia was uneventful. However, oxygenation deteriorated and airway pressure increased after suction of ascites during the operation. We treated it with increased FI(O2). After surgery, we found bilateral massive pleural effusion on the chest X-ray and drained it. Oxygenation improved, and the endotracheal tube was removed. Patients with ovarian tumor with pleural effusion and ascites may have desaturation due to increased pleural effusion during the operation, or pleural effusion might increase preoperatively. Therefore, we need to be cautious about anesthetic management of them and examine chest X-ray and arterial blood gas frequently.