Intra-Aortic Balloon Pump | 合法醫療器材資訊網

由TMKhan著作·2020·被引用4次—TheIABPassiststheheartindirectlybydecreasingtheafterloadandaugmentsdiastolicaorticpressurewithsubsequentenhancementin ...

Anatomic, Physiologic, and Hemodynamic Effects of IABP

The IABP assists the heart indirectly by decreasing the afterload and augments diastolic aortic pressure with subsequent enhancement in diastolic blood flow resulting in better perfusion of the peripheral organ as well as a possible improvement in the coronary blood flow. The intra-aortic balloon inflates during diastole synchronously with aortic valve closure and the appearance of a dicrotic notch resulting in the displacement of blood from the thoracic aorta into the peripheral circulation that is followed by rapid deflation before the onset of systole phase of the cardiac cycle. Theoretically, this results in improved diastolic pressure and reduced systolic aortic pressure by reducing the afterload, which subsequently results in decreased left ventricle wall stress reducing the myocardial oxygen demand. These hemodyna...