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Updated: Jun 28, 2026
08:21
Functional Assessment of the Donor Heart During Ex Situ Perfusion: Insights from Pressure-Volume Loops and Surface Echocardiography
Published on: October 11, 2022
Adequate systemic perfusion maintained by a CentriMag during acute heart failure.
Roberto R Favaloro1, Alejandro Bertolotti, Mirta Diez
1Favaloro Foundation, Buenos Aires C1093AAS, Argentina.
Texas Heart Institute Journal
|October 23, 2008
Summary
The CentriMag ventricular assist device effectively supports circulation in critically ill patients with acute heart failure. This short-term mechanical circulatory support aids myocardial recovery or bridges patients to definitive therapy.
Area of Science:
- Cardiology
- Biomedical Engineering
Background:
- Severe acute heart failure and cardiogenic shock necessitate mechanical circulatory support.
- Magnetically levitated centrifugal-flow pumps offer potential advantages for short-term circulatory support.
Observation:
- The CentriMag ventricular assist device was used in 4 critically ill patients with cardiogenic shock.
- Patients received support after cardiac surgery or following worsening chronic heart failure.
- Two patients were bridged to heart transplantation, while two patients died during support.
Findings:
- CentriMag pump flow was adequate in all patients, maintaining stable ventilation.
- Serum lactic acid levels significantly improved and normalized with CentriMag support.
- Arterial pH, PO2, and carbon dioxide levels remained within acceptable ranges.
- No thromboembolic events or mechanical failures were observed during support.
Implications:
- Short-term use of the CentriMag ventricular assist device can effectively restore and support circulation in acute heart failure.
- This device provides a viable option for myocardial recovery or as a bridge to definitive therapy.
- The study highlights the potential of advanced centrifugal-flow pumps in managing critical cardiac conditions.
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