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首页> 外文期刊>Catheterization and cardiovascular interventions: Official journal of the Society for Cardiac Angiography & Interventions >Impact of intra-aortic balloon counterpulsation with different balloon volumes on cardiac performance in humans.
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Impact of intra-aortic balloon counterpulsation with different balloon volumes on cardiac performance in humans.

机译：不同气囊体积的主动脉内气囊反搏对人体心脏性能的影响。

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Intra-aortic balloon (IAB) counterpulsation can augment the cardiac output. However, the effect of different IAB volumes on cardiac performance has not been adequately evaluated in humans. Eighty-two patients (52 males [63%]; mean age, 65 +/- 12 years; mean body surface area [BSA], 1.8 +/- 0.2 m(2)) had IAB counterpulsation for cardiogenic shock, refractory angina, and preoperatively for high-risk cardiac surgery. Cardiac hemodynamics were prospectively studied during IAB with inflation volumes of 32 vs. 40 cc. Hemodynamic data collected included aortic pressure, pulmonary artery pressure, systemic and mixed venous oxygen saturations, and cardiac output (by Fick). Transthoracic echocardiography (TTE) was used to obtain both velocity time integrals (VTIs) and the area of the left ventricular outflow tract (LVOT). Left ventricular stroke volume was then calculated as LVOT area x VTI. Cardiac output (CO) determined by the Fick method and VTI did not differ significantly (P = NS) between the two inflation volumes (y = 0.002 + 0.97x). In a subgroup of 33 patients with BSA
机译：主动脉内球囊（IAB）的反搏可以增加心输出量。但是，尚未在人体中充分评估不同IAB量对心脏功能的影响。 82例患者（52例男性[63％];平均年龄65 +/- 12岁;平均体表面积[BSA] 1.8 +/- 0.2 m（2））因心源性休克，难治性心绞痛，并在术前进行高危心脏手术。在IAB期间进行了前瞻性研究，研究了32 cc和40 cc充气量的心脏血液动力学。收集的血流动力学数据包括主动脉压，肺动脉压，全身和混合静脉血氧饱和度以及心输出量（由Fick提供）。经胸超声心动图（TTE）用于获取速度时间积分（VTI）和左心室流出道面积（LVOT）。然后计算左心室搏动量为LVOT面积x VTI。由Fick方法和VTI确定的心输出量（CO）在两个充气量之间（y = 0.002 + 0.97x）没有显着差异（P = NS）。在33例BSA

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