RELATIONSHIP BETWEEN RADIAL & FEMORAL ARTERY PRESSURES IN CHILDREN PRESENTING FOR SURGERY WITH CYANOTICS AND ACYANOTIC CONGENITAL HEART DISEASES: IS ONE TRACE/ NUMBER BETTER THAN THE OTHER?
Keywords:
Acyanotic, Cyanotic, CPB (Cardio Pulmonary Bypass), CHD (Congenital Heart Defects)Abstract
Objective: To observe the relationship between radial and femoral artery pressures in cyanotic and acyanotic
children presenting for corrective surgery using CPB.
Study Design: Descriptive cross sectional study.
Place and Duration of Study: The study was conducted in the pediatric operation theatre and ICU from
October 2014 to April 2015 at AFIC/NIHD Rawalpindi Pakistan.
Material and Methods: Two hundred twenty four consecutive patients were included in the study and were
divided into two groups, group A included cyanotic patients (n =110), Group B acyanotic patients (n=114). All
patients received a radial and femoral arterial catheter after induction of anesthesia. The mean blood pressure
was recorded pre bypass, immediately after coming off bypass, at 5 minutes and hourly for 3 hours. Pre and
post bypass hematocrit and bypass times were also recorded.
Results: The mean age of group A patients was 4.6 years (3 months to 20 years) while group B was 3.8 years (6
months to 16 years). Mean weight in group A was 18.64 ± 9.23 kg and in group B was 13.08 kg ± 6.23. The
mean radial artery pressure in group A were 45 ± 13.35, 47 ± 9.84, 55 ± 11.1, 66 ± 8.64 and 70 ± 8.81 at 0
minutes , 5 minutes after bypass and at 1 hourly interval for three hours after coming off CPB, respectively.
These were significantly lower than mean femoral artery pressures in group A i.e. 68.11 ± 11.62, 65 ± 11.28,,,,,
Conclusion:Radial artery pressures underestimate femoral arterial ,,,,,
