Abstract
Hemodynamic effects of right ventricular assist device (RVAD) for right heart failure caused by acute pulmonary artery banding (PAB) were evaluated in 12 mongrel dogs. Bilateral PAB was performed decreasing both pulmonary arterial area to 50%. Non-assisted dogs (n=5) were died within 30 minutes after PAB. Assisted dogs (n=7) were alive for 180 minutes with RVAD placed between right atrium and main PA proximal to PAB. RVAD decreased RV peak pressure, RAP, and RV stroke work significantly, also LAP was restored to pre-value with maintenance of cardiac output.