Korean J Anesthesiol.  1997 Feb;32(2):260-266. 10.4097/kjae.1997.32.2.260.

Comparison of Femoral to Radial Artery Pressure during Coronary Artery bypass Graft and Valvular Surgery

• Kwak YL
• Hong YW
• Bang SO
• Yoo ES

• KMID: 2240312
• DOI: http://doi.org/10.4097/kjae.1997.32.2.260

Abstract

BACKGROUND
It has been known that pressure gradient(PG) between systolic radial arterial pressure(RAP) and systolic aortic pressure(AP) is often altered after cardiopulmonary bypass(CPB). In this study, we compared radial to femoral arterial pressure(FAP) difference between valve replacement(VR) group(n=189) and coronary artery bypass graft (CABG) group(n=90).
METHODS
With IRB approval, anesthesia management followed the standard method for cardiac surgery. Heart rate, RAP, FAP, cardiac index(CI), forearm skin temperature, hematocirt and systemic vascular resistance index(SVRI) were recorded at before-CPB, after-CPB and after sternal closure.
RESULTS
In CABG group, there was no change of PG between RAP and FAP before and after CPB. In VR group, systolic RAP was similar with FAP before CPB but the radial-femoral arterial pressure gradient was reversed with statistical significance after bypass. Compare with CAGB group, change of pressure gradient after CPB cousiderded statistical significant in valve replacement group. CI was increased and SVRI was decreased with statistical significance.
CONCLUSION
In our study, patients in VR group who demonstrated high CI and low SVRI showed reversal of PG upon cessation of CPB. Reversal of PG at post-CPB probably partially depends on the degree of systemic vasodilation upon discontinuation of CPB.

Keyword

Monitoring blood pressure; Surgery coronary artery bypass graft valvular replacement

MeSH Terms

Anesthesia
Arterial Pressure
Coronary Artery Bypass*
Coronary Vessels*
Ethics Committees, Research
Forearm
Heart Rate
Humans
Radial Artery*
Skin Temperature
Thoracic Surgery
Transplants
Vascular Resistance
Vasodilation