immediately after occlusion , 14 dogs were randomized to a hypertension group ( intravenous phenylephrine infusion starting 5 minutes after occlusion and terminating at the time of reperfusion , with heart rate kept constant by atrial pacing ) and 18 dogs to a control group ( equivalent volumes of saline solution intravenously ) .
C0020538
hypertension
C0031469
phenylephrine