Table 3.

Differences between Impella 2.5, Impella 5.0, Impella LD (left direct), and Impella CP (cardiac power).

Version	Impella 2.5	Impella 5	Impella LD	Impella CP
Catheter	9 Fr	9 Fr	9 Fr	9 Fr
Motor size	12 Fr	21 Fr	21 Fr	14 Fr
Flow rate	2.5 lpm	5 lpm	5 lpm	4 lpm
Support	Five days	Seven days	Seven days	Five days
Max speed	51,000 rpm	33,000 rpm	33,000 rpm	51,000 rpm
Guide wire	0.046 × 260 cm	0.064 × 260 cm	Not Required	0.046 × 260 cm
Pressure sensor	Direct	Differential	Differential	Direct