Intra-aortic balloon pumps: an update on radiographic recognition.
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Intra-aortic balloon pumps increase myocardial perfusion and decrease cardiac afterload in patients with cardiogenic shock and in high-risk patients scheduled for cardiac surgery. Appropriate positioning of the pump can be confirmed in chest radiographs. Familiarity with available catheters helps the physician to recognize overadvancement of the balloon in the ascending aorta or the aortic arch vessels. Because the balloon is long, its position is juxtarenal in most patients.
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