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intra-aortic balloon pump |
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pump (pump) 1. an apparatus for drawing or forcing liquids or gases. 2. to draw or force liquids or gases. breast pump a manual or electric pump for abstracting breast milk. calcium pump the mechanism of active transport of calcium (Ca2+) across a membrane, as of the sarcoplasmic reticulum of muscle cells, against a concentration gradient; the mechanism is driven by enzymatic hydrolysis of ATP. intra-aortic balloon pump (IABP) a pump used in intra-aortic balloon counterpulsation. proton pump a system for transporting protons across cell membranes, often exchanging them for other positively charged ions. sodium pump , sodium-potassium pump the mechanism of active transport, driven by hydrolysis of ATP, by which sodium (Na+) is extruded from a cell and potassium (K+) is brought in, so as to maintain gradients of these ions across the cell membrane.
intra-aortic within the aorta. intra-aortic balloon pump a mechanical aid to the circulatory function of the heart that acts to provide internal counterpulsation. intra-aortic balloon pump Interventional cardiology A device that changes hemodynamic loading conditions in the heart by ↑ mean and peak diastolic BP, and ↓ peak systolic BP; these changes result in ↓ left ventricular
end-diastolic pressure, ↑ stroke volume, ↑ cardiac output; the IABP is used primarily for cardiogenic shock after an acute MI, or in severe mitral insufficiency of abrupt onset; the IABP ↑ coronary blood flow, myocardial perfusion,
↑ collateral coronary circulation, improves subendocardial oxygenation, ↓ myocardial O2 consumption Contraindications Acute or significant aortic regurgitation, as IABP exacerbates regurgitation from the aorta into the left
ventricle and ↑ left ventricular diastolic filling pressure; IABP is used as a ventricular assist device, pre-, intra- or postoperatively when medical therapy is insufficient by itself How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| ? Mentioned in | ? References in periodicals archive | ||
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| 1968) Initial clinical experience with intra-aortic balloon pumping in cardiogenic shock. The researchers noted that the benefits achieved with EECP therapy were comparable to those achieved with intra-aortic balloon pumping, an invasive means of circulatory support commonly used by interventional cardiologists in the acute setting. The researchers noted that these beneficial hemodynamic effects achieved with EECP were comparable to effects achieved with intra-aortic balloon pumping, an invasive means of circulatory support commonly used by interventional cardiologists in the acute setting. |
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