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Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock
06:10

Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock

Published on: June 12, 2021

Treatment of cardiogenic shock with the Hemopump left ventricular assist device

R K Wampler1, O H Frazier, A M Lansing

  • 1Nimbus, Inc, Rancho Cordova, California.

The Annals of Thoracic Surgery
|September 1, 1991
PubMed

Insights

The Hemopump device significantly improves hemodynamic status in patients with cardiogenic shock. This study suggests the Hemopump may enhance survival rates for select patients with severe heart conditions.

Area of Science:

  • Cardiology
  • Medical Devices
  • Mechanical Circulatory Support

Background:

  • Cardiogenic shock is a life-threatening condition with high mortality.
  • Conventional therapies for cardiogenic shock have limited efficacy.
  • The Hemopump is a percutaneous ventricular assist device designed for hemodynamic support.

Purpose of the Study:

  • To evaluate the safety and efficacy of the Hemopump in patients with refractory cardiogenic shock.
  • To assess the impact of Hemopump assistance on hemodynamic parameters.
  • To determine the 30-day survival rate in patients treated with the Hemopump.

Main Methods:

  • A multi-institutional study involving 53 patients with refractory cardiogenic shock.
  • Hemodynamic criteria for cardiogenic shock included low cardiac index, high pulmonary capillary wedge pressure, and low systolic blood pressure or left ventricular work index.
  • Successful Hemopump insertion in 77.3% of patients, with hemodynamic monitoring and survival assessment.

Main Results:

  • Significant improvement in hemodynamic status was observed during Hemopump assistance.
  • Minimal hemolysis and no leg ischemia were reported.
  • The 30-day overall survival rate for the Hemopump group was 31.7%.

Conclusions:

  • The Hemopump provides significant hemodynamic support in cardiogenic shock.
  • It facilitates recovery in marginal ventricles and may improve survival in select patients.
  • Proposed criteria for Hemopump indications and clinical utility warrant further investigation.

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