Acute Hemodynamic Effects of Sildenafil in Patients With Severe Aortic Stenosis

Summary

Pulmonary hypertension is common in patients with aortic stenosis and is associated with worse operative and long-term outcomes. Sildenafil has been shown to reduce pulmonary artery pressure and improve exercise performance in patients with left-sided heart failure, but this has not been tested in patients with aortic stenosis. We hypothesize that Sildenafil will produce a clinically significant decrease in pulmonary artery pressure in patients with severe aortic stenosis. The dose of Sildenafil that produces a significant decrease in pulmonary artery pressure will be safe and well tolerated in patients with and without a depressed ejection fraction.

Timeline

Start

2010-01

Primary completion

2011-09

Completion

2011-10

Publications

• Results Lindman BR, Zajarias A, Madrazo JA, Shah J, Gage BF, Novak E, Johnson SN, Chakinala MM, Hohn TA, Saghir M, Mann DL. Effects of phosphodiesterase type 5 inhibition on systemic and pulmonary hemodynamics and ventricular function in patients with severe symptomatic aortic stenosis. Circulation. 2012 May 15;125(19):2353-62. doi: 10.1161/CIRCULATIONAHA.111.081125. Epub 2012 Mar 25.

Drugs

Indications