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Ex Vivo Lung Perfusion of Cardiac-death Donor Lung in Pigs

 Hyo Chae Paik  ;  Seok Jin Haam  ;  Joo Han Song  ;  Moo Suk Park 
 Journal of the Korean Society for Transplantation, Vol.28(3) : 154-159, 2014 
Journal Title
Journal of the Korean Society for Transplantation(대한이식학회지)
Issue Date
Lung transplantation ; Tissue donors ; Organ preservation ; Warm ischemia
Background : Lung transplantation (LTx) is a life-saving treatment for patients with end-stage lung disease; however, the shortage of donor lungs has been a major limiting factor to increasing the number of LTx. Growing experience following LTx using donor lungs after cardiac death (DCD) has been promising, although concerns remain. The purpose of this study was to develop a DCD lung harvest model using an ex vivo lung perfusion (EVLP) system and to assess the function of presumably damaged lungs harvested from the DCD donor in pigs.

Methods : The 40 kg pigs were randomly divided into the control group with no ischemic lung injury (n=5) and the study group (n=5), which had 1 hour of warm ischemic lung injury after cardiac arrest. Harvested lungs were placed in the EVLP circuit and oxygen capacities (OC), pulmonary vascular resistance (PVR), and peak airway pressure (PAP) were evaluated every hour for 4 hours. At the end of EVLP, specimens were excised for pathologic review and wet/dry ratio.

Results : No statistically significant difference in OC (P=0.353), PVR (P=0.951), and PAP (P=0.651) was observed in both groups. Lung injury severity score (control group vs. study group: 0.700±0.303 vs. 0.870±0.130; P=0.230) and wet/dry ratio (control group vs. study group: 5.89±0.97 vs. 6.20±0.57; P=0.560) also showed no statistically significant difference between the groups.

Conclusions : The function of DCD lungs assessed using EVLP showed no difference from that of control lungs without ischemic injury; therefore, utilization of DCD lungs can be a new option to decrease the number of deaths on the waiting list.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Thoracic and Cardiovascular Surgery (흉부외과학교실) > 1. Journal Papers
Yonsei Authors
Park, Moo Suk(박무석) ORCID logo https://orcid.org/0000-0003-0820-7615
Paik, Hyo Chae(백효채) ORCID logo https://orcid.org/0000-0001-9309-8235
Song, Joo Han(송주한)
Haam, Seok Jin(함석진)
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