Echocardiography and Lv Function During Anesthesia

Alpha-and Beta-Adrenoceptor Antagonists

“…During such episodes, increases in heart rate and systolic pressure contribute to large increases in myocardial oxygen consumption which result frequently in arrhythmias and myocardial ischaemia. Electrocardiographic signs of myocardial ischaemia may be observed (Prys- , in addition to reduction in ejection fraction (Barash et al, 1980;Giles et al, 1982) and abnormal patterns of wall function (Elliott et al, 1980). Hypertension and tachycardia may be prevented successfully by i.v.…”