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Related Experiment Videos

Experimental en bloc double-lung transplantation.

J H Dark, G A Patterson, A N Al-Jilaihawi

    The Annals of Thoracic Surgery
    |October 1, 1986
    PubMed
    Summary

    A new en bloc double-lung transplant technique using hypothermic circulatory arrest was developed. This innovative procedure shows promise for treating end-stage respiratory disease with excellent short-term results in puppies.

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    Area of Science:

    • Thoracic Surgery
    • Transplantation Immunology
    • Cardiopulmonary Physiology

    Background:

    • End-stage respiratory diseases necessitate advanced treatment options.
    • Lung transplantation remains a complex procedure with ongoing technical challenges.
    • Developing innovative surgical techniques is crucial for improving patient outcomes.

    Purpose of the Study:

    • To describe a novel en bloc double-lung transplantation technique.
    • To evaluate the feasibility and initial efficacy of this technique in a canine model.
    • To assess hemodynamic function and gas exchange following the procedure.

    Main Methods:

    • Utilized a median sternotomy approach for en bloc double-lung procurement.
    • Employed hypothermic circulatory arrest after surface cooling in 7 puppies.

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  • Performed bilateral pneumonectomies in recipients followed by implantation of the donor lung block.
  • Established anastomoses at the distal trachea, left atrium, and main pulmonary artery.

    • Main Results:

    • All 7 canine subjects survived the procedure and were successfully rewarmed.
    • Excellent hemodynamic function and gas exchange were observed for up to 24 hours post-transplantation.
    • The en bloc technique facilitated the implantation of the entire lung unit with major vessel and airway connections.

    Conclusions:

    • The developed en bloc double-lung transplantation technique is feasible in a canine model.
    • The procedure demonstrated excellent short-term hemodynamic and gas exchange parameters.
    • Further investigation in primate models is warranted to assess long-term survival and clinical applicability for patients with end-stage respiratory disease.