Significance of Lung Weight in Cellular Ex Vivo Lung Perfusion

Toshihiro Okamoto, Hiromichi Niikawa, David Wheeler, Basem Soliman, Kamal S. Ayyat, Yoshifumi Itoda, Carol F. Farver, Kenneth R. McCurry

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Background: Currently, pulmonary edema is evaluated via surgical inspection and palpation in donor lungs, and there is no quantitative standard diagnostic tool for evaluating pulmonary edema in donor procurement and ex vivo lung perfusion (EVLP). The purpose of this study was to investigate the significance of lung weight at the donor hospital and lung weight during EVLP as a complementary parameter of transplant suitability in EVLP. Materials and methods: Twenty-one of rejected human lungs were perfused in cellular EVLP. Transplant suitability was evaluated at 2 h as per standard criteria of Lund-protocol EVLP. Results: Lung weight at donor hospital was significantly correlated with PaO2/FiO2 (P/F) ratio in EVLP (r = −0.44). There was a significant difference in lung weight at donor hospital between suitable cases (n = 13) and nonsuitable cases (n = 8). Light lung group (lung weight at donor hospital < 1280 g; n = 17) was suitable for transplant in 76%, whereas none of heavy lung group (lung weight at donor hospital ≥ 1280 g; n = 4) was suitable (P < 0.05). Lung weight at 2 h and lung weight change during EVLP were significantly associated with P/F ratio at 2 h and transplant suitability (P < 0.05, each). Conclusions: Our findings demonstrate that lung weight at donor hospital, lung weight change, and lung weight at 2 h of EVLP might be a predictor of P/F ratio and transplant suitability in cellular EVLP.

Original languageEnglish
Pages (from-to)190-199
Number of pages10
JournalJournal of Surgical Research
Publication statusPublished - 2021 Apr


  • Ischemia reperfusion injury
  • Pulmonary edema


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