The circuit supplies oxygen and nutrients through the organ’s blood vessels, allowing cells to continue metabolic activity outside the body. It also regulates temperature, pressure, and flow, which helps create controlled conditions for maintaining organ function. These controls are important because preservation depends not only on supplying fluid, but also on managing the physical environment during the procedure.
Temperature, pressure, and flow determine how closely the perfusion environment supports continued organ activity. Controlling these variables helps deliver the perfusion solution through the vascular system while maintaining conditions suitable for cellular metabolism. Their regulation also provides a standardized setting in which investigators can observe organ function and evaluate how the organ responds during preservation or treatment.
Conventional cold storage primarily preserves an organ during a limited preservation interval, whereas Ex Vivo Organ Perfusion can maintain controlled circulation through the organ outside the body. This difference may extend preservation beyond cold storage and allows functional assessment before transplantation. The approach therefore adds an opportunity to evaluate organ condition rather than relying only on storage preservation.
The isolated organ is connected to a perfusion circuit through its blood vessels, and a perfusion solution is circulated through the organ. The system then controls temperature, pressure, and flow while delivering oxygen and nutrients. During this period, organ function can be maintained and assessed, creating a controlled workflow for preservation, evaluation, or further conditioning.
Functional testing during perfusion can help assess how an organ performs while it is supported outside the body. Because the circuit maintains circulation and controlled conditions, clinicians and researchers can evaluate organ function before transplantation rather than depending solely on its initial preservation status. This information can support decisions about medical use and help characterize transplant readiness.
In transplantation, the technique can help preserve organs for longer than conventional cold storage, assess their function, and condition or repair organs that might otherwise be unsuitable. In research, it provides a platform for studying organ physiology, injury, and transplant outcomes. Its value lies in combining organ support with an opportunity to observe and influence the organ before use.