The Intra-aortic Balloon Pump

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  • KIM Chol
    Department of Anesthesiology, Nippon Medical School Chiba Hokusoh Hospital

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  • 大動脈内バルーンパンピング

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<p>The intra-aortic balloon pump（IABP）is a simple device to support hemodynamics of patients with cardiac instability or cardiac shock caused by heart conditions such as acute coronary syndrome. The aims of IABP are to maintain cardiac function of patients and to assist further therapies. The balloon, inserted into the aorta, is repeatedly inflated and deflated in synchronization with the cardiac cycle. Adjustment of the synchronizing is important to properly assist hemodynamics of patients, so anesthesiologists should know cardiac physiology and the mechanism of IABP to obtain satisfactory outcomes with this device. The effects of IABP are called diastolic augmentation and systolic unloading, which augment diastolic perfusion and increasing diastolic blood pressure respectively. As a result, increase of myocardial perfusion and decrease of myocardial demand are achieved. Although it has potential serious complications, such as limb ischemia, vascular laceration necessitating surgical repair, and major hemorrhage, these seldom occur.</p><p>This article provides basic information on IABP such as its mechanism, indications, and complications, adding some aspects to the lecture presented at the 39th annual meeting of the Japan Society for Clinical Anesthesia.</p>

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