Which statement describes diastolic augmentation provided by IABP?

Which statement describes diastolic augmentation provided by IABP?

• A. Increases heart rate and contractility
• B. Increases coronary-artery perfusion (diastolic augmentation), decreases afterload, and assists in assessing the 6Ps
• C. Provides respiratory support
• D. Delivers intravenous fluids

Answer: (B)

Diastolic augmentation with an intra-aortic balloon pump works by timed counterpulsation that enhances coronary blood flow while reducing the heart’s workload. The balloon inflates during diastole, increasing aortic diastolic pressure and pushing more blood toward the coronary arteries, which improves myocardial perfusion. Then it deflates just before systole, which lowers left ventricular afterload and makes it easier for the heart to eject blood. This combination improves cardiac output and decreases myocardial oxygen demand. In addition, care includes monitoring the limb where the catheter is placed for perfusion status (the 6 Ps: pain, pallor, pulselessness, paresthesias, paralysis, and temperature), since arterial access carries a risk of distal ischemia. The device doesn’t increase heart rate or contractility, nor does it provide respiratory support or deliver IV fluids.

Diastolic augmentation with an intra-aortic balloon pump works by timed counterpulsation that enhances coronary blood flow while reducing the heart’s workload. The balloon inflates during diastole, increasing aortic diastolic pressure and pushing more blood toward the coronary arteries, which improves myocardial perfusion. Then it deflates just before systole, which lowers left ventricular afterload and makes it easier for the heart to eject blood. This combination improves cardiac output and decreases myocardial oxygen demand. In addition, care includes monitoring the limb where the catheter is placed for perfusion status (the 6 Ps: pain, pallor, pulselessness, paresthesias, paralysis, and temperature), since arterial access carries a risk of distal ischemia. The device doesn’t increase heart rate or contractility, nor does it provide respiratory support or deliver IV fluids.