Low Flow Anesthesia Clinical Trial
Official title:
Changes in Quality of Recovery With Low-Flow Anesthesia in Minor ENT Surgery (QoRLowflow)
Postoperative recovery quality is as important as patient satisfaction and clinical results in terms of a fast and high-quality surgical process. This study was conducted to investigate the effect of low-flow anesthesia applications on the quality of patient recovery by evaluating the 'Quality of Recovery' (QoR40) test and the perception tests (PQRS Cognitive test) performed in the early postoperative period.
All patients will be evaluated preoperatively in the anesthesia outpatient clinic, their consent will be obtained, and they will be informed about the 'Postoperative Recovery Evaluation' and pre-tests will be performed. All patients will receive premedication midazolam 0.07mg/kg intramuscularly 20 minutes before the operation. In both groups, anesthesia induction will be achieved with intravenous propofol 3 mg/kg, remifentanil 0.1 mic/kg, and rocuronium 0.06 mg/kg. Following endotracheal intubation, maintenance of anesthesia will be provided to the patients in Group I by inhalation, with sevoflurane MAC 1 in O2/Air 1/3 (4lt/min). On the other hand, patients in Group II will be switched to O2/Air 0.16/0.48 (0.5 lt/min) low flow anesthesia 15 minutes after the depth of anesthesia is provided (BIS<50) and inhalation anesthesia starts. Remifentanil infusion will be administered intravenously at 0.025-0.1 mic/kg/min to all patients in both groups for peroperative analgesia. For postoperative analgesia, fentanyl will be administered intravenously as 2 mic/kg 10 minutes before the end of the surgery. In group I patients, remifentanil infusion and inhalation anesthesia will be reduced and stopped at the end of surgery. (BIS maximum 60). In patients in Group II, inhalation anesthesia will be terminated 15 minutes before the end of surgery, and remifentanil infusion will be terminated with the last suture. (BIS maximum 60). Peroperatively, patients' heart rate, mean blood pressure, oxygen saturation with pulse oximetry, tidal volume, respiratory rate, inspiratory/expiratory oxygen/air/sevoflurane concentrations, leakage amounts, end tidal CO2 and inspiratory CO2 amounts, BIS values will be recorded at 15-minute intervals. . The end of the surgery, the last suture of the surgery, the end of the anesthesia will be recorded as the termination of the administration of intravenous and inhalation anesthetics. Muscle laxity of the patients will be restored with sugammadex 2 mg/kg. As the extubation criteria, the spontaneous ventilation of the patients with sufficient tidal volume and the end of muscle relaxation will be taken as BIS >70. The extubation time will be recorded. Postoperative recovery evaluations of the patients will be made. Nausea/vomiting and Modified Aldrete scores and VAS values of the patients followed for 30 minutes in the recovery unit will be recorded. At the end of the first 30 minutes, PQRS Cognitive test will be applied to the patients. On the morning of the first postoperative day, the QoR40 test will be applied and scored by an anesthesia technician who does not know the anesthesia method. The results will be compared. ;
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