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Terms in this set (13)
Goals of IABP therapy
-Decrease the work of the heart
-Decrease myocardial oxygen demand
-Increase coronary perfusion
-Improve cardiac output
-Limit myocardial ischemia
-Prevent cardiogenic shock and limit size of infarctions
-support in acute MI with cardiogenci shock
-circulatory support in post-CABG patients
-support in high-risk catheterizations
-In severe ischemia as a bridge to revascularization
-Intractable chest pain refractory to conventional care
-Balloon inserted percutaneously in the femoral artery
-Balloon sits in the descending aorta, just distal to the left subclavian artery and above the renal arteries
-Balloon inflates and deflates based on patient's EKG or arterial pressure waveform
-Ventricular systole, the balloon is deflated
-Ventricular diastole, the balloon is inflated
Contraindications of IABP therapy
-Severe Aortic disease
Complications of IABP therapy
-Ischemia of limb distal to insertion site
the balloon is inflated during the beginning of ventricular systole. This increases the work load of trhe left ventricle. Very harmful for the patient.
the balloon in inflated before aortic valve closure. Causes reflux of blood into the left ventricle. Decrreases cardiac output and increases SVR, Harmful.
a result of late inflation, there is minimal displacement of blood back toward the coronary arteries.
a result of early delfation. Afterload reduction is lost. This occurs because by the time the aortic valve opens, the pressures in the aorta has equalized.
Transport considerations- patient decompensation
Watch for patient decompensation during balloon purges. Be prepared to treat patient.
Transport considerations- power failure
In the event of power failure, the balloon needs to be manually pumped every 30 minutes to prevent thrombus formation on the balloon.
Transport considerations- balloon too low
Watch urinary output and distal pulses closely in transport- renal arteries are occluded.
Transport considerations- balloon too high
Loss of left radial pulse indicates the balloon has migrated upward covering the subclavian artery.
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