| Comparison of Radial and Femoral Arterial Pressure in Pediatric Patients Undergoing Open Heart Surgery. |
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Young Lan Kwak, Eun Sook Yoo, Sun Jun Bai, Sou Ouk Bang, Chun Soo Lee, Bum Joon Cho, Hyun Kyo Lim |
1Department of Anesthesiology, Yonsei Cardiovascular Center and Research Institute, Yonsei University College of Medicine, Seoul, Korea.
2Department of Anesthesiology, Yonsei University Wonju College of Medicine, Wonju, Korea. |
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| Abstract |
BACKGROUND
It has been known that a reversal of usual relationship between aortic and radial artery pressures(RAP) can occur in adult patients following cardiopulmonary bypass(CPB). The phenomenon of a pressure gradient between RAP and femoral artery pressure(FAP) were evaluated in pediatric patients before and after CPB.
METHODS
141 perdiatric patients undergoing open heart surgery were allocated into 2 groups. Group 1(n=77): infant's body weight was below 10kg. Group 2(n=64): child's body weight was between 10 and 20kg. After induction of anesthesia RAP was measured through 22G(1 inch) or 24G(3/4 inch) catheters and FAP was measured through 20G(2 inch) or 22G(1 inch) catheters using calibrated transducers.
Hematocrit, rectal and nasopharyngeal temperature and left atrial pressure(LAP) were recorded 10 min after induction, immediately, l5, 30 and 60 min after CPB. Values are expressed as mean+/-SD and analysed using paired and unpaired t-test; p<0.05 was considered significant.
RESULT
Systolic femoral arterial pressure(SFAP) was higher than radial arterial pressure(SRAP) before CPB in both groups. After CPB, the pressure gradient persisted in group 2 but was reversed with statistical significance in group l.
CONCLUSION
When hypotension occurs during cardiac surgery, a comparison is recommended between radial and femoral or aortic pressure before treatment for hypotension is contemplated. |
| Key Words:
Monitoring; blood pressure; Surgery; cardiac; pediatric |
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