Table 1.
Changes in LVAD parameters of speed and flow following percutaneous balloon and stent therapy
| Intervention | LVAD Speed (RPM) | LVAD Flow (L/min) |
|---|---|---|
| Baseline | 2900 | 2.5 |
| Balloon dilatation (4.0 × 40 mm) | 2900 | 2.7 |
| Balloon dilatation (5.0 × 40 mm) | 2900 | 2.9 |
| Balloon dilatation (6.0 × 40 mm) | 2900 | 3.2 |
| Balloon dilatation (8.0 × 40 mm) | 2900 | 3.5 |
| Atrium stent (10.0 × 38 mm) | 2900 | 9.0 |
| Atrium stent (10.0 × 38 mm) | 2350 | 4.0 |
With serial balloon dilatations, incremental improvement in LVAD parameters can be seen, leading to a resolution of obstruction and normalization of LVAD parameters with covered stent placement. Abbreviations: LVAD, left ventricular assist device.