Acute Biventricular Mechanical Circulatory Support for Cardiogenic Shock

Area of Science:

• Cardiology
• Mechanical Circulatory Support
• Heart Failure

Background:

• Biventricular failure is a critical condition associated with high in-hospital mortality.
• Limited data exist on the efficacy of biventricular Impella (BiPella) for treating biventricular failure.
• This study explores the clinical utility of percutaneously delivered BiPella in patients with cardiogenic shock and biventricular failure.

Purpose of the Study:

• To evaluate the clinical utility and outcomes of biventricular Impella (BiPella) support in patients with cardiogenic shock due to biventricular failure.
• To identify factors associated with better outcomes in patients receiving BiPella support.
• To assess the feasibility and safety of percutaneously delivered BiPella.

Main Methods:

• Retrospective analysis of data from 20 patients with biventricular failure receiving BiPella support across 5 US tertiary-care hospitals.
• Devices used included Impella 5.0, Impella CP, Impella 2.5 for left ventricular support and Impella RP for right ventricular support.
• Patient data included underlying causes (myocardial infarction, advanced heart failure, myocarditis), procedural details, complications, and in-hospital outcomes.

Main Results:

• The overall in-hospital mortality was 50%, with no intraprocedural deaths.
• Major complications included hemolysis (n=6) and bleeding (n=7).
• Survivors were younger, required fewer vasopressors, and were more likely to have simultaneous device implantation, with lower pulmonary artery pressures and RV stroke work index pre-procedure.

Conclusions:

• Biventricular Impella (BiPella) is a feasible mechanical support strategy for cardiogenic shock with biventricular failure.
• Simultaneous implantation and lower right ventricular afterload may be linked to improved patient outcomes.
• Further prospective studies are warranted to confirm the efficacy of BiPella in this patient population.