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HARPS criteria.
| Left ventricular end-diastolic diameter | < 6 cm |
| Left ventricular end-systolic diameter | < 5 cm |
| Left ventricular ejection fraction | > 45% |
| Pulmonary capillary wedge pressure | < 12 mm Hg |
| Cardiac Index | > 2.8 L/min/m2 |
| Peak VO2 (exercise) | > 16 ml/kg/min |
| Ventilatory equivalent of CO2 (exercise) | < 34 |
All criteria should be met with pump "off" (6000 rpm for HeartMate II)
