IABP

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What is counterpulsation?

Balloon inflation in diastole and deflation in early systole
What is the aim of IABP?
- Increase myocardial oxygen supply
- Decrease myocardial oxygen demand
Some indications for IABP?
- LV Failure (low EF/hypertension/BNP increase)
- Mechanical Complications to MI
- Secondary complications to MI (renal failure)
- Unstable angina
- Support for high risk PTCI (Left main stem)
- Bridge to bypass
Contra-indications for IABP?
- Aortic Valve insufficiency - Severe AVR will only get worse
- Aortic dissection
- Aortic Aneurysm
- Severe PVD (can not manourver balloon up patients arteries)
- Irreversible brain damage
- Cerebral aneurysm
Why is determining the correct balloon size important?

Do not want to block off carotid or renal arteries
What are the main effects of IABP?
- Increase coronary artery perfusion
- Increase myocardial oxygen supply
- Decrease myocardial oxygen demand
- Reduces afterload
- Increases MAP
- Decreases work load on lungs (lowers Pulmonary artery pressure)
When is the balloon set to inflate?

On the dicrotic notch
If the dicrotic notch can not be found/seen, what should the trigger be set to?

R wave
Why is the balloon inflated during diastole?
- Increases pressure difference between the aorta and the left ventricle
- This results in an increased coronary blood flow and myocardial oxygen supply
Draw the IABP curve indicating diastolic augmentation

Isn't it pretty ;-)
What are the haemodynamic effects of deflation of the balloon?
- Decreased afterload
- Decreased cardiac work
- Decreased myocardial oxygen consumption
- Increased cardiac output
What are the three different triggers for IABP?
- ECG - R wave
- Pressure - Dicrotic notch
- Pacing - Pacing spike
What are the effects of late timing of inflation?

Diastolic augmentation is reduced

Author:	Westy50
ID:	190662
Card Set:	IABP
Updated:	2012-12-27 15:21:23
Tags:	IABP
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Description:	IABP
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