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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 1.

Figure 1

A: Aortic root pressure waveforms from the same animal demonstrated suprasystolic diastolic augmentation and afterload reduction during 1:2 (middle panel) and 1:1 (bottom panel) intraaortic balloon pump (IABP) support compared to baseline (top panel). Arrows indicate supported beats. B: Diastolic augmentation of greater than 20 mmHg was achieved when the IABP was timed with a low-fidelity (fluid-filled) catheter in the radial artery or a high-fidelity (micromanometer) catheter in the aorta. AoP, Aortic Pressure; LV, left ventricular; *p<0.0001 vs. baseline; †p<0.0001 vs. LV failure.