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Improved lung preservation using Euro-Collins solution for flush-perfusion.

A Haverich, S Aziz, W C Scott

    The Thoracic and Cardiovascular Surgeon
    |December 1, 1986
    PubMed
    Summary
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    Optimizing lung preservation for transplantation involves adjusting perfusate volume and flow rates. Higher volumes and controlled pulmonary artery pressure significantly impact lung function after 24-hour storage.

    Area of Science:

    • Cardiology
    • Thoracic Surgery
    • Transplantation Medicine

    Background:

    • Extended lung preservation remains a challenge in transplantation.
    • Optimizing flush-perfusion techniques is crucial for improving graft viability.

    Purpose of the Study:

    • To investigate the impact of varying perfusate volumes and flow rates on lung preservation.
    • To assess the effects on pulmonary artery pressure, flow distribution, temperature, and post-transplant function.

    Main Methods:

    • Fifteen mongrel dogs were used, with heart-lung blocks harvested.
    • Cold modified Euro-Collins solution was employed for flush-perfusion.
    • Three groups (A, B, C) received different perfusate volumes and flow rates, with measurements of pulmonary artery pressure, regional lung temperature, and flow distribution.

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    Main Results:

    • Group A: 20 cc/kg over 6 minutes.
    • Group B: 20 cc/kg at 18-20 mmHg PAP (1.3 min).
    • Group C: 60 cc/kg at 18-20 mmHg PAP (4 min), demonstrating effects of increased volume and pressure.

    Conclusions:

    • Different flush-perfusion strategies significantly affect lung preservation parameters.
    • Further research is needed to correlate these findings with long-term transplant outcomes.