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Intra Aortic Balloon Pump (IABP) The Intra-aortic balloon pump (IABP) is a mechanical device that decreases myocardial oxygen demand while at the same time increasing cardiac output. Increasing cardiac output increases coronary blood flow and therefore myocardial oxygen delivery. It consists of a cylindrical polyethylene balloon that sits in the aorta. That is, it actively deflates in systole, increasing forward blood flow by reducing afterload. It actively inflates in diastole, increasing blood flow to the coronary arteries. These actions combine to decrease myocardial oxygen demand and increase myocardial oxygen supply. http://heart-consult.com/articles/178/intra-aortic-balloon-pump-mechanical-circulatory-support
Posted by: manuheart on Dec 2010

Intra Aortic Balloon Pump (IABP) The Intra-aortic balloon pump (IABP) is a mechanical device that decreases myocardial oxygen demand while at the same time increasing cardiac output. Increasing cardiac output increases coronary blood flow and therefore myocardial oxygen delivery. It consists of a cylindrical polyethylene balloon that sits in the aorta. That is, it actively deflates in systole, increasing forward blood flow by reducing afterload. It actively inflates in diastole, increasing blood flow to the coronary arteries. These actions combine to decrease myocardial oxygen demand and increase myocardial oxygen supply. http://heart-consult.com/articles/178/intra-aortic-balloon-pump-mechanical-circulatory-support
Posted by: manuheart on Dec 2010

My goodness, is this a finding that older people are likely to die more often? With or without IABP, older folks will die more often and p-value for that will be significant, always! This is completely incorrect way of analyzing the role of age on cause-specific mortality. The correct way is to conduct a competing-risk survival analysis.
Posted by: rqayyum on Feb 2011

In most of clinical studies, age is considered as effect modifier rather than a factor, so this effect modifier should be discussed through stratification so its effect to be controlled. Study design is not seen to be a more appropriate. Multivariate analysis should be used in such situation.
Posted by: ibrahim_ap on Oct 2011

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