Table 2. Comparison of hemodynamic impact between mechanical circulator support devices.
| Hemodynamics | IABP | Impella | VA ECMO | TandemHeart |
|---|---|---|---|---|
| Mechanism | Counterpulsation | LV → Ao | RA → CFA | LA → CFA |
| Pump | Pneumatic | Axial | Centrifugal | Centrifugal |
| CVP | – | – | ↓ | – |
| PAP | – | – | ↓ | – |
| LVEDP | ↓ | ↓↓ | – | ↓↓ |
| MAP | ↑ | ↑↑ | ↑↑ | ↑↑ |
| LV afterload | ↓ | – | ↑ | ↑ |
| CI | ↑ | ↑↑ | ↑↑ | ↑↑ |
| Native CO | ↑ | ↓ | ↓ | ↓ |
Ao, aorta; CI, cardiac index; CFA, common femoral artery; CO, cardiac output; CVP, central venous pressure, IABP, intra-aortic balloon pump; LA, left atrium; LV, left ventricle; LVEDP, left ventricular end-diastolic pressure; MAP, mean arterial pressure; PAP, pulmonary artery pressure; RA, right atrium; VA ECMO, venoarterial extracorporeal membrane oxygenation.