Investigation of the Effects of Pressure Support Ventilation and Positive Airway Pressure Modes During Extubation

After informed consent was obtained from the patients, monitoring was performed as we practice in routine anesthesia practice. Pressure controlled ventilation (PCV) mode and positive end-expiratory pressure (PEEP) were used as the mechanical ventilation mode after intubation. After the operation was completed, PCV mode on the mechanical ventilator was continued until the patient was extubated. Afterwards, patients were extubated if they complied with verbal commands and/or swallowed and/or coughed in response to vocal stimuli, pupils were in the midline and conjugated, BIS value was >80, breathing was regular, and TOF response was >90%. Hemodynamic and respiratory system complications were recorded during the intraoperative, recovery-extubation and postoperative periods. Patients over the age of 18 with American Society of Anesthesiology physical classification (ASA) 1-3 who underwent laparoscopic cholecystectomy were included in the study. In the preoperative period, the patient's demographic data and hemodynamic data, and in the intraoperative period, respiratory data (tidal volume, pressure applied during inspiration, peep, etc.) and hemodynamic data were recorded. Complications recorded during recovery-extubation; desaturation, laryngospasm, bronchospasm, agitation, rescue mask ventilation application, airway obstruction, nausea-vomiting, re-intubation, struggling.

Inclusion criteria

• Patients over the age of 18 with American Society of Anesthesiology physical classification (ASA) 1-3 who underwent laparoscopic cholecystectomy were included in the study

Exclusion criteria

• The patient does not want to participate in the study.
• Known advanced lung disease, advanced-stage heart disease
• Switching from laparoscopic surgery to open surgery
• Surgical procedure exceeds 120 minutes
• intraoperative bleeding >500 ml