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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: J Thorac Cardiovasc Surg. 2013 Oct 15;147(5):1660–1667. doi: 10.1016/j.jtcvs.2013.08.044

Figure 2.

Figure 2

A: End-diastolic aortic pressure (AoP) was significantly reduced during 1:1 intraaortic balloon pump (IABP) therapy triggered with a low-fidelity (fluid-filled) catheter in the radial artery or a high-fidelity (micromanometer) catheter in the aorta. B: Left ventricular myocardial blood flow (LVF) did not improve significantly during 1:1 IABP therapy timed with either a low-fidelity or high-fidelity blood pressure signal. C: Myocardial oxygen consumption (MVO2) did not improve during 1:1 IABP therapy timed with either a low-fidelity or high-fidelity blood pressure signal. D: LVF normalized to MVO2, an index of the myocardial oxygen supply/demand relationship, did not improve during 1:1 IABP therapy timed with either a low-fidelity or a high-fidelity blood pressure signal. LV, left ventricular; *p<0.01 vs. baseline; †p<0.05 vs. LV failure.