Does dobutamine improve RV-PA coupling and cardiac output better than norepinephrine in pressure load-induced right ventricular failure?
Dobutamine is superior to norepinephrine in restoring RV-PA coupling and cardiac output in pressure load-induced right ventricular failure due to its stronger inotropic effect.
A transient increase in PA pressure persistently worsens PA hemodynamics, RV contractility, RV-PA coupling, and cardiac output. Dobutamine restores RV-PA coupling and cardiac output better than norepinephrine because of its more pronounced inotropic effect.
Kerbaul et al. (Thu,) studied this question.