cardiac performance , as judged by preload , afterload , and myocardial contractility , was evaluated by non-invasive m-mode echocardiography before and after acute oral administration of calcium entry blockers ( nitrendipine and verapamil ) , angiotensin converting enzyme ( ace ) inhibitors ( captopril and lisinopril ) , and a dopamine receptor agonist ( fenoldopam ) in patients with mild to moderate essential hypertension .
C0018787
cardiac
C0027061
myocardial