4.4 Article

Left Lung Orthotopic Transplantation in a Juvenile Porcine Model for ESLP

Journal

JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
Volume -, Issue 180, Pages -

Publisher

JOURNAL OF VISUALIZED EXPERIMENTS
DOI: 10.3791/62979

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Funding

  1. University Hospital Foundation

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Lung transplantation is an effective treatment for end-stage lung disease but is limited by donor organ shortage. Ex situ lung perfusion (ESLP) has improved donor lung utilization rates and can be validated using porcine models. The porcine lung transplantation model is easily reproducible and can be used to validate ESLP strategies and evaluate interventions.
Lung transplantation is the gold-standard treatment for end-stage lung disease, with over 4,600 lung transplantations performed worldwide annually. However, lung transplantation is limited by a shortage of available donor organs. As such, there is high waitlist mortality. Ex situ lung perfusion (ESLP) has increased donor lung utilization rates in some centers by 15%-20%. ESLP has been applied as a method to assess and recondition marginal donor lungs and has demonstrated acceptable short-and long-term outcomes following transplantation of extended criteria donor (ECD) lungs. Large animal (in vivo) transplantation models are required to validate ongoing in vitro research findings. Anatomic and physiologic differences between humans and pigs pose significant technical and anesthetic challenges. An easily reproducible transplant model would permit the in vivo validation of current ESLP strategies and the preclinical evaluation of various interventions designed to improve donor lung function. This protocol describes a porcine model of orthotopic left lung allotransplantation. This includes anesthetic and surgical techniques, a customized surgical checklist, troubleshooting, modifications, and the benefits and limitations of the approach.

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