our studies suggest that fentanyl-o2 anaesthesia in the schedule described , in children undergoing elective cardiac surgery for tetralogy of fallot , a-v canal , and transposition of the great arteries , is not sufficient to prevent elevation in systolic blood pressure despite fentanyl plasma concentrations in excess of 20 ng x ml-1 .
C0018787
cardiac
C0039685
tetralogy of fallot