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Related Experiment Videos

Circulatory support for OPCAB procedures.

Xavier M Mueller1, Ludwig K von Segesser

  • 1Clinic for Cardiovascular Surgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland. xavier.mueller@chuv.hospvd.ch

Perfusion
|July 26, 2002
PubMed
Summary
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Mini-pump circulatory support was developed for off-pump coronary artery bypass grafting (OPCAB) to manage hemodynamic instability. While OPCAB is now often performed without support, miniaturized pumps offer new options for acute heart failure.

Area of Science:

  • Cardiovascular Surgery
  • Medical Device Development
  • Hemodynamics

Background:

  • Off-pump coronary artery bypass grafting (OPCAB) can cause hemodynamic disturbances due to heart verticalization.
  • Miniature circulatory support pumps were initially developed to address right heart strain during OPCAB.

Purpose of the Study:

  • To review existing mini-pump technologies for cardiac support.
  • To introduce a novel integrated cardiopulmonary bypass (CPB) circuit concept.
  • To explore new indications for miniaturized circulatory support devices.

Main Methods:

  • Review of three types of mini-pumps (two right-sided, one biventricular).
  • Discussion of an integrated cardiopulmonary bypass (CPB) circuit with reduced surface area and priming volume.

Related Experiment Videos

  • Analysis of the potential for peripheral access insertion of these devices.

    • Main Results:

    • OPCAB can often be performed without circulatory support due to improved surgical techniques.
    • Miniaturized pumps, initially for OPCAB, show promise for short-term support in acute heart failure.
    • Peripheral access offers less invasive options compared to existing devices.

    Conclusions:

    • Miniaturized circulatory support devices, though initially for OPCAB, have evolved.
    • These devices present a less invasive alternative for acute heart failure management.
    • The development of smaller, peripherally inserted pumps addresses limitations of current invasive technologies.