Page 91 - Critical Care Notes
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blood toward the periphery. Deflation of the balloon decreases the end-diastolic
pressure, which reduces impedance to flow when aortic valve opens at onset of
systole. This decreases ventricular afterload and promotes stroke volume, thus
increasing coronary artery perfusion and blood flow during diastole.
Diastole Systole
Aorta
Balloon
Heart catheter
Descending
aorta
Renal
artery
Systole Diastolic augmentation
mm Hg
Time
IABP Waveforms
CV
