Ven, L.L.M. van de

patient surgery blocker heart perioperative study bisoprolol heart failure therapy failure group stroke treatment result infarction event trial echocardiography disease noncardiac surgery randomized ␤- blocker therapy effect death dysfunction mortality dobutamine dobutamine stress echocardiography ␤- blocker use decrease beta-blocker risk factors stress table postoperative stroke blocker therapy lv dysfunction outcome dobutamine echocardiography rotterdam ace-i polderman incidence enalapril target dose noncardiac postoperative analysis factor heart rate erasmus universiteit rotterdam characteristic 1.0 medication society evaluation target erasmu history ischemia bisoprolol group point signi dse results poise association percent lv function ␤- blockers guideline baseline downloaded wall-motion abnormalities b-blocker phase american metoprolol risk score variable .001