Left ventricular assist with an axial flow pump (Hemopump): clinical application

Area of Science:

• Cardiology
• Medical Devices
• Mechanical Circulatory Support

Background:

• Acute left heart failure presents a critical challenge in cardiac care.
• Left ventricular assist devices (LVADs) are essential for managing severe heart failure.
• The Hemopump is a percutaneous ventricular assist device designed for left ventricular support.

Purpose of the Study:

• To evaluate the efficacy and safety of the Hemopump in patients with acute left heart failure.
• To assess the Hemopump's performance in diverse etiologies of left ventricular dysfunction.
• To determine the survival rates and complication profiles associated with Hemopump use.

Main Methods:

• Retrospective analysis of 18 patients with acute left heart failure considered for Hemopump support.
• Hemodynamic monitoring and clinical outcome assessment during Hemopump utilization.
• Documentation of device-related complications and patient survival post-intervention.

Main Results:

• Hemodynamic recovery was achieved in all 12 patients who received Hemopump support.
• Survival to discharge was 58% (7 out of 12 patients), including those bridged to transplantation.
• Major complications included mechanical pump failure and hemolysis; one patient died due to hemolysis.

Conclusions:

• The Hemopump demonstrates relative non-invasiveness and efficacy as a left ventricular assist system.
• It provides moderate power support, offering a potential therapeutic option for select patients with acute left heart failure.
• Further investigation into mitigating complications like hemolysis is warranted for broader clinical application.