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Clinical experience with the Nimbus pump.

G M Deeb1, S F Bolling, J Nicklas

  • 1University of Michigan Medical Center, Section of Thoracic Surgery, AnnArbor 48109.

ASAIO Transactions
|July 1, 1990
PubMed
Summary
This summary is machine-generated.

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The Nimbus pump, a transfemoral left ventricular assist device, shows promise for acute myocardial infarction patients in cardiogenic shock, with 60% recovery. However, its use is limited in cardiomyopathy patients.

Area of Science:

  • Cardiology
  • Medical Devices
  • Surgical Technology

Background:

  • The Nimbus pump is an electromagnetic, transfemorally inserted left ventricular assist device.
  • Indications include severe cardiogenic shock unresponsive to medical management.

Purpose of the Study:

  • To evaluate the efficacy and limitations of the Nimbus pump in patients requiring left ventricular support.

Main Methods:

  • Surgical insertion of the Nimbus pump in twelve patients with various cardiac conditions.
  • Analysis of insertion success rates, patient outcomes, and device applicability based on diagnosis.

Main Results:

  • Successful insertion was achieved in 8 out of 12 patients (67%).
  • Among patients with acute myocardial infarction (AMI), 60% showed sufficient left ventricular recovery for device removal.

Related Experiment Videos

  • Patients with cardiomyopathy experienced disease progression, exceeding the pump's capabilities, leading to mortality.

    • Conclusions:

    • The Nimbus pump demonstrates potential for patients with cardiogenic shock post-AMI due to its pumping capacity and minimally invasive insertion.
    • Limitations in access route and vessel size restrict its application.
    • The device is not indicated for patients with advanced cardiomyopathy.