Dexmedetomidine-ketamine and ketamine-propofol required a comparable number of rescue ketamine boluses (1.44 vs 1.47, p=0.822) for procedural sedation in adults undergoing short surgical procedures.
RCT (n=194)
Double-blind
Computer-generated randomized sequence
No
Does a dexmedetomidine-ketamine combination improve procedural sedation compared to ketamine-propofol in adults undergoing short surgical procedures?
For short-duration surgical procedures, a dexmedetomidine-ketamine combination reduces procedural interference and prolongs the time to first rescue bolus compared to ketamine-propofol, with comparable safety.
Absolute Event Rate: 1.44% vs 1.47%
p-value: p=0.822
Background and objective Moderate to deep sedation is a prerequisite during total intravenous anesthesia for short-duration surgeries, and it can be achieved by using individual drugs or in combination. Our study compared dexmedetomidine-ketamine (DK) versus ketamine-propofol (KP) in terms of sedation, procedural interference, hemodynamics, and incidence of side effects in patients undergoing short surgical procedures. Methods A total of 194 patients scheduled for short-duration elective surgeries were randomly allocated into two groups. Group DK received a loading dose of 1 µg/kg of dexmedetomidine and 1 mg/kg of ketamine followed by a maintenance infusion of dexmedetomidine at 0.3 µg/kg/h. Group KP received a loading dose of 1 mg/kg of ketamine and 1 mg/kg of propofol followed by a maintenance infusion of propofol at 25 µg/kg/h. For procedural interference, a rescue ketamine bolus was administered at 0.25 mg/kg. Patients were monitored for the requirement of rescue ketamine bolus, procedural interference, hemodynamics, sedation, recovery time, and adverse effects. Results The procedural interference was higher in group KP than in group DK and the difference was statistically significant (P=0.001). The time to the first rescue bolus was 8.72 ± 4.47 minutes in group KP and 10.82 ± 4.01 minutes in group DK, with a difference of 2.1 minutes (p=0.026). There was no statistically significant difference in the sedation scores between both groups except at time points of six minutes and 15 minutes. Conclusion For short-duration procedures, the DK combination is superior to the KP combination in terms of procedural interference and time to the first rescue bolus, while both groups were comparable with regard to safety and hemodynamics.
Kakarla et al. (Tue,) conducted a rct in Short surgical procedures (n=194). Dexmedetomidine-Ketamine vs. Ketamine-Propofol (1 mg/kg propofol and 1 mg/kg ketamine loading, 25 µg/kg/min propofol maintenance) was evaluated on Number of rescue boluses of ketamine required during the procedure (p=0.822). Dexmedetomidine-ketamine and ketamine-propofol required a comparable number of rescue ketamine boluses (1.44 vs 1.47, p=0.822) for procedural sedation in adults undergoing short surgical procedures.