Continuous monitoring of spontaneous postoperative respiration. 3. The effect of amiphenazole on cutaneous oxygen and carbon dioxide partial pressure following gynecologic surgery under halothane anesthesia

Methods. In an attempt to verify non-invasive respiratory monitoring for patients in the early postoperative period, cutaneous O 2 and CO 2 pressures were monitored in 30 female patients recovering from major gynaecologic surgery under halothane anaesthesia. In a double-blind and randomized fashion, in the recovery room the patients received a single intravenous bolus injection of placebo or 150 mg amiphenazole, a respiratory stimulant. The data were collected and stored in a personal computer, using the TCM3 system with a combination electrode for simultaneous measuring of cutaneous oxygen and carbon dioxide partial pressures (TINA, Radiometer) at 30-s intervals