What is IABP and how does it work?
An intra-aortic balloon pump (IABP) is a type of therapeutic device. It helps your heart pump more blood. You may need it if your heart is unable to pump enough blood for your body. The IABP consists of a thin, flexible tube called a catheter.
What are the indications for IABP?
The indications for use of an IABP involve two areas:
- Temporary support of the left ventricular function due to cardiac failure, due to myocardial infarction or due to intraoperative injury.
- Improvement in the oxygen supply/demand balance to decrease the extent of the ischaemic zone and to preserve myocardial viability.
What type of gas is used in an intra-aortic balloon pump?
Helium is used to inflate the balloon as it is low density means there is little turbulent flow, so the balloon can inflate fast and deflate slowly. It is also relatively benign and eliminated quickly if there is a leak or rupture in the balloon.
How does a balloon pump increase cardiac output?
The IABP assists the heart indirectly by decreasing the afterload and augments diastolic aortic pressure with subsequent enhancement in diastolic blood flow resulting in better perfusion of the peripheral organ as well as a possible improvement in the coronary blood flow.
When does IABP inflate?
IABP inflates at the onset of diastole, thereby increasing diastolic pressure and deflates just before systole, thus reducing LV afterload.
What is augmented pressure on balloon pump?
Abstract. Treatment with the intraaortic balloon pump (IABP) is the most common form of mechanical support for the failing heart. Augmentation of diastolic pressure during balloon inflation contributes to the coronary circulation and the presystolic deflation of the balloon reduces the resistance to systolic output.
What is augmented pressure on IABP?
During IABP augmentation, the DPTI is. increased as the aortic diastolic blood pressure is increased. and the left ventricular diastolic pressure is decreased.
What is the augmented pressure on a IABP?
How does IABP decrease preload?
IABP inflates at the onset of diastole, thereby increasing diastolic pressure and deflates just before systole, thus reducing LV afterload….Physiological effects of IABP therapy.
| Aorta | ↓systolic pressure, ↑diastolic pressure |
|---|---|
| Heart | ↓afterload, ↓preload, ↑cardiac output |
| Blood flow | ↑→ coronary blood flow |
What is normal augmented pressure on balloon pump?
The aortic volume doubles between a shock mean of 30 to 40 mm of Hg and a normal mean pressure of 80 to 90 mm of Hg).
Why is helium used in balloon pumps?
The balloon is made of polyethylene and is inflated with gas driven by the pump. Helium is often used because its low density facilitates rapid transfer of gas from console to the balloon. It is also easily absorbed into the blood stream in case of rupture of the balloon.