title: First experience with the Impella Recover(R) LP 2.5 micro axial pump in patients with cardiogenic shock or undergoing high-risk revascularisation.
abstract: OBJECTIVE
  To study the feasibility, safety and efficacy of the Recover(R) LP 2.5 assist device in patients scheduled for high risk off-pump coronary bypass surgery, percutaneous coronary intervention or patients in cardiogenic shock.
  
  
  RESULTS
  40 patients presenting with cardiogenic shock (n=13) or scheduled for a high risk revascularisation (n=27) were included.36 were selected for safety and feasibility analysis. In 3 patients the pump could not be placed in an adequate position. 5 patients had access related complications. In 9 patients free Hb rose above 80 mg/dl. 3 malfunctions and early device-removal occurred. After device modifications these problems did not recur. CO in the shock group increased significantly: 4.4 l/min+/-1.9 to 4.8 l/min+/-1.2 (p=0.0178).The left ventricular filling pressures decreased in both groups (22 mmHg+/-7.5 to 16 mmHg+/-6 in the shock group, [p=0.0008] and over 6 hours from 14.3 mmHg+/-5.8 to 10 mmHg+/-2.9 in the high-risk revascularisation group,[p=0.0327]).
  
  
  CONCLUSIONS
  The Recover(R) LP 2.5 micro axial pump allows, via percutaneous approach, partial unloading of the left ventricle. The technique is, after design modifications, feasible and safe and results in haemodynamic improvement.
authors.affiliation: Department of Cardiology, UH Leuven, Belgium.
authors.forename: J
authors.initials: J
authors.lastname: Dens
authors.forename: B
authors.initials: B
authors.lastname: Meyns
authors.forename: R-D
authors.initials: RD
authors.lastname: Hilgers
authors.forename: J
authors.initials: J
authors.lastname: Maessend
authors.forename: V
authors.initials: V
authors.lastname: van Ommen
authors.forename: U
authors.initials: U
authors.lastname: Gerckens
authors.forename: E
authors.initials: E
authors.lastname: Grube