dynamic changes in left ventricular ( lv ) function were assessed during sinus rhythm and after vt was initiated , under variable autonomic conditions : ganglionic blockade with hexamethonium ( n = 5 ) , alpha-adrenergic blockade with terazosin ( n = 7 ; 0.3 mg/kg ) , and beta-adrenergic blockade with propranolol ( n = 6 ; 2 mg/kg ) .
C0042514
vt
C0033497
propranolol