Key result
Clonidine premedication significantly reduced fentanyl requirements by 45% (from 110 to 61 µg/kg; P<0.001) to achieve a similar depth of anesthesia during induction and intubation.
Why the study?
Does clonidine reduce fentanyl requirements and prevent hyperdynamic cardiovascular responses during induction of anesthesia and intubation in patients undergoing aortocoronary bypass surgery?
RCT (n=24)
Randomly assigned
Does clonidine reduce fentanyl requirements and prevent hyperdynamic cardiovascular responses during induction of anesthesia and intubation in patients undergoing aortocoronary bypass surgery?
Effect estimate: 45% reduction
Absolute Event Rate: 61% vs 110%
p-value: p=<0.001
Clonidine premedication significantly reduces fentanyl requirements to achieve adequate anesthesia depth during induction for aortocoronary bypass surgery.
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May warrant clonidine premedication to lower opioid exposure in CABG induction; extends RCT evidence for hemodynamic stability.
Ghignone et al. (1986) conducted an RCT in Aortocoronary bypass surgery with hypertension and coronary artery disease (n=24). Clonidine vs. Standard premedication was evaluated on Fentanyl requirements to shift the EEG to the 0.5-3-Hz frequency range (45% reduction, p=<0.001). Clonidine premedication significantly reduced fentanyl requirements by 45% (from 110 to 61 µg/kg; P<0.001) to achieve a similar depth of anesthesia during induction and intubation.
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