Key result
Milrinone infusion in children after cardiac surgery acted as a vasodilator, reducing backward compression wave intensity by 26%, but did not improve left ventricular contractility or relaxation.
Why the study?
Milrinone is widely used after pediatric cardiac surgery, but literature supporting its inotropic effect is sparse.
Does milrinone infusion improve ventricular contractility and cause vasodilation in children after cardiac surgery?
Observational (n=16)
No
Does milrinone infusion improve ventricular contractility and cause vasodilation in children after cardiac surgery?
In children recovering from cardiac surgery, milrinone acts as a vasodilator but does not demonstrate inotropic or lusitropic effects when assessed by wave intensity analysis.
Answers are grounded in this paper and cite their sources.
Milrinone may act primarily via vasodilation without detectable inotropy or lusitropy post-pediatric cardiac surgery; hypothesis-generating and should not change practice.
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Rahiman et al. (2020) conducted an observational in Postoperative management of children undergoing cardiac surgery (n=16). Milrinone vs. Prior to commencing milrinone was evaluated on Effect on vasculature and ventricular function using wave intensity analysis. Milrinone infusion in children after cardiac surgery acted as a vasodilator, reducing backward compression wave intensity by 26%, but did not improve left ventricular contractility or relaxation.
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