Rehana Yaseen, Najma Amjad, Hasan Memon.
Correlation of femoral artery vs radial artery pressures with central pressure after cardiopulmonary bypass in children.
Pak J Surg Jan ;24(1):65-7.

Objective: To assess the effectiveness of femoral and radial arterial lines on the correlation of peripheral and central mean arterial blood pressure in children after discontinuation of cardiopulmonary bypass. Design & Duration: Quasi experimental study from May 2007 to October 2007. Setting: Department of Anaesthesiology, National Institute of Cardiovascular Diseases, Karachi. Patients: Fifty children scheduled for cardiac surgery with cardiopulmonary bypass were included in the study. Methodology: After approval from the hospital ethics committee and informed consent. 50 children undergoing cardiac surgical procedures with cardiopulmonary bypass were randomly assigned to two different groups. In Group- A (RAP, n-2) a radial arterial line and in Group-B (FAP, n-25) a femoral arterial line was used to monitor the blood pressure. Simultaneous mean peripheral arterial pressure and mean central aortic pressure were recorded before cardiopulmonary bypass and 5 mins after separation from the cardiopulmonary bypass. The correlation of mean peripheral arterial pressure (radial and femoral) versus mean aortic pressure were compared. The data was recorded as Mean ± SD and P-value. Results: The ages of children ranged from 4-12 years and their weight from 14.1-28.5 kg. In all of them following cardiopulmonary bypass, aortic pressure correlates better with femoral arterial pressure (p<0.001). The radial arterial line readings under estimated central aortic pressure when compared to femoral arterial line readings. Conclusion: Aortic pressure readings correlate better with femoral arterial pressure than radial arterial pressure in chldren

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