reactive hyperaemic blood flow responses to 10 s complete occlusions and 400 ms diastolic occlusions of the left circumflex coronary artery and to the vasomotor responses to the increased cardiac demand following ventricular extra-activation were examined in a chronic , heart-blocked dog preparation during a control period and following intravenous bolus administration of aminophylline ( 5 mg x kg-1 ) .
C0018787
cardiac
C0018827
ventricular