Hemodynamic evaluation of hydralazine dosage in refractory heart failure.

Hemodynamic responses to different doses of hydralazine were evaluated in 18 patients with severe refractory resistant heart failure. There were no significant overall hemodynamic effects after 50 mg hydralazine. After 75 mg, CI increased slightly (+0.

Rebound hemodynamic events after the abrupt withdrawal of nitroprusside in patients with severe chronic heart failure.

We studied the hemodynamic events that followed abrupt withdrawal of nitroprusside in 20 patients with severe chronic heart failure. With nitroprusside, cardiac index increased from 1.96 to 2.