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Updated: Jun 27, 2025
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Optocardiography and Electrophysiology Studies of Ex Vivo Langendorff-perfused Hearts
Published on: November 7, 2019
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Ex Vivo Working Porcine Heart Model
Henry Pigot1, Kristian Soltesz2, Stig Steen3
1Department of Automatic Control, Lund University, Lund, Sweden. henry.pigot@control.lth.se.
Methods in Molecular Biology (Clifton, N.J.)
|April 27, 2024
Summary
Ex vivo working porcine heart models offer a valuable platform for studying heart function and disease, mimicking human physiology. This research details model components and introduces an advanced device for more accurate afterload simulation.
Area of Science:
- Cardiovascular Physiology
- Surgical Research
- Transplantation Science
Background:
- Ex vivo working porcine heart models simulate human cardiac function outside the body.
- Porcine hearts share anatomical and physiological similarities with human hearts.
- These models aid in studying cardiac disease and assessing donor heart viability.
Purpose of the Study:
- To provide a comprehensive discussion of ex vivo working porcine heart model components.
- To explore challenges and historical methods in emulating cardiac afterload.
- To introduce an actively controlled afterload device for enhanced experimental accuracy.
Main Methods:
- Detailed examination of perfusate, preload, and afterload in the model.
- Historical review of afterload modeling techniques and limitations.
- Introduction and application of an actively controlled afterload device.
Main Results:
- Identification of challenges in accurately replicating cardiac afterload.
- Demonstration of an actively controlled device for dynamic pressure adjustment.
- Establishment of a comprehensive experimental protocol.
Conclusions:
- Ex vivo working porcine heart models are crucial for cardiac research and transplantation.
- Accurate afterload emulation is critical for model validity.
- The proposed actively controlled afterload device improves experimental precision.
