Baars, H.F.

patient bisoprolol surgery group infarction perioperative event dobutamine echocardiography echocardiography study heart dobutamine result bisoprolol group death percent risk factors follow-up cardioprotective e ffect heart rate incidence randomized beta-blocker peri-operative factor copyright 1999 massachusetts cause treatment polderman artery disease ischemia heart failure ischaemia standard-care stress table period beta-blockade nonfatal committee hospital atenolol standard-care group perioperative period end point bisoprolol therapy disease difference center randomized patients noncardiac surgery san giovanni rotondo e ffect failure dobutamine stress echocardiography ziekenhui physician netherland testing therapy noncardiac non-fatal wall-motion safety committee point rotterdam vas c ul erasmu range cardioprotective wall-motion index wall-motion abnormalities segment outcome di fferences care unit society perioperative incidence evaluation effect