Myocardial contractile response to dobutamine in hypoplastic left heart syndrome post-Fontan
نویسندگان
چکیده
Methods Prospective data from anesthetized patients with HLHS undergoing clinical XMR were analyzed. A fluid filled MR compatible catheter placed in the systemic RV recorded pressures at rest, with dobutamine infusion at 10 mcg/kg/ min and at 20 mcg/kg/min. Simultaneous cine short axis stacks of the ventricle were performed. Pressure-volume loops were constructed. End-systolic pressure-volume relationship was derived at each state from a validated maximal pressure (Pmax) estimation method. Ventriculoarterial coupling (Ees:Ea) was compared to myocardial power and overall global function.
منابع مشابه
Two-dimensional global longitudinal strain rate is a preload independent index of systemic right ventricular contractility in hypoplastic left heart syndrome patients after Fontan operation.
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