[Droperidol. Action on hemodynamic and oxygen consumption changes (author's transl)]

Area of Science:

• Anesthesiology
• Cardiovascular Physiology
• Metabolic Studies

Background:

• General anesthesia can induce significant hemodynamic and metabolic changes during the postoperative recovery period.
• Monitoring these changes is crucial for managing high-risk patients and preventing complications.

Purpose of the Study:

• To investigate the effects of droperidol on hemodynamic parameters and oxygen consumption during the recovery phase after general anesthesia.
• To determine if droperidol exhibits a stabilizing effect on metabolism and cardiovascular function in the immediate postoperative period.

Main Methods:

• A comparative study involving 22 patients undergoing general anesthesia, divided into two groups (11 with droperidol, 11 without).
• Hemodynamic variables (cardiac index, mean arterial pressure, stroke index, left ventricular stroke work index) and oxygen consumption were measured.
• Measurements were taken immediately after operation and during the maximal metabolism of the recovery period.

Main Results:

• Patients receiving droperidol demonstrated significantly lower oxygen consumption (162 vs. 238 ml/min/m2) during recovery.
• Droperidol group exhibited lower cardiac index (3.0 vs. 4.4 l/min/m2), mean arterial pressure (116 vs. 129 torr), stroke index (27 vs. 46 ml/m2), and left ventricular stroke work index (38 vs. 77 gm/m2).
• Lower PaCO2 levels were also observed in the droperidol group (39 vs. 49 torr).

Conclusions:

• Droperidol exerts a stabilizing effect on metabolic and hemodynamic parameters following general anesthesia.
• This stabilizing effect may be beneficial for managing high-risk surgical patients during the postoperative recovery phase.