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Niikawa H, Okamoto T, Ayyat KS, Itoda Y, Sakanoue I, Farver CF, Yun JJ, McCurry KR. Prone Ex Vivo Lung Perfusion Protects Human Lungs from Reperfusion Injury. Artif Organs 2022; 46:2226-2233. [DOI: 10.1111/aor.14328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/08/2022] [Accepted: 05/25/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Hiromichi Niikawa
- Department of Inflammation and Immunity Lerner Research Institute; Cleveland Clinic Cleveland OH U.S.A
- Department of Thoracic and Cardiovascular Surgery; Cleveland Clinic Cleveland OH U.S.A
| | - Toshihiro Okamoto
- Department of Inflammation and Immunity Lerner Research Institute; Cleveland Clinic Cleveland OH U.S.A
- Department of Thoracic and Cardiovascular Surgery; Cleveland Clinic Cleveland OH U.S.A
| | - Kamal S. Ayyat
- Department of Inflammation and Immunity Lerner Research Institute; Cleveland Clinic Cleveland OH U.S.A
- Department of Thoracic and Cardiovascular Surgery; Cleveland Clinic Cleveland OH U.S.A
- Department of Cardiothoracic Surgery Zagazig University Zagazig Egypt
| | - Yoshifumi Itoda
- Department of Inflammation and Immunity Lerner Research Institute; Cleveland Clinic Cleveland OH U.S.A
- Department of Thoracic and Cardiovascular Surgery; Cleveland Clinic Cleveland OH U.S.A
| | - Ichiro Sakanoue
- Department of Inflammation and Immunity Lerner Research Institute; Cleveland Clinic Cleveland OH U.S.A
- Department of Thoracic and Cardiovascular Surgery; Cleveland Clinic Cleveland OH U.S.A
| | - Carol F. Farver
- Department of Anatomic Pathology; Cleveland Clinic Cleveland OH U.S.A
| | - James J. Yun
- Department of Inflammation and Immunity Lerner Research Institute; Cleveland Clinic Cleveland OH U.S.A
- Department of Thoracic and Cardiovascular Surgery; Cleveland Clinic Cleveland OH U.S.A
- Transplant Center; Cleveland Clinic Cleveland OH U.S.A
| | - Kenneth R. McCurry
- Department of Inflammation and Immunity Lerner Research Institute; Cleveland Clinic Cleveland OH U.S.A
- Department of Thoracic and Cardiovascular Surgery; Cleveland Clinic Cleveland OH U.S.A
- Transplant Center; Cleveland Clinic Cleveland OH U.S.A
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Sakota D, Kosaka R, Niikawa H, Ohuchi K, Arai H, McCurry KR, Okamoto T. Optical oxygen saturation imaging in cellular ex vivo lung perfusion to assess lobular pulmonary function. BIOMEDICAL OPTICS EXPRESS 2022; 13:328-343. [PMID: 35154874 PMCID: PMC8803022 DOI: 10.1364/boe.445021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/25/2021] [Accepted: 12/03/2021] [Indexed: 06/14/2023]
Abstract
Ex vivo lung perfusion (EVLP) is an emerging tool to evaluate marginal lungs in lung transplantation. However, there is no objective metric to monitor lobular regional oxygenation during EVLP. In this study, we developed oxygen saturation (SaO2) imaging to quantitatively assess the regional gas exchange potential of the lower lobes. Ten porcine lungs were randomly divided into control and donation after circulatory death (DCD) groups (n = 5, each). Lungs were perfused in cellular EVLP for 2 h, and multispectral images were continuously collected from the dorsal sides of the lower lobes. We examined whether lower lobe SaO2 correlated with PaO2/FiO2 (P/F) ratios in lower pulmonary veins (PV). The wet/dry ratio in lower lobes was measured and Monte Carlo simulations were performed to investigate the method's feasibility. There was a significant correlation between lower lobe SaO2 and the P/F ratio in lower PV (r = 0.855, P < 0.001). The DCD group was associated with lower SaO2 and higher wet/dry ratio than the control group (P < 0.001). The error of estimated SaO2 was limited according to Monte Carlo simulations. The developed technology provides a noninvasive and regional evaluative tool of quantitative lobular function in EVLP.
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Affiliation(s)
- Daisuke Sakota
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 3058564, Japan
| | - Ryo Kosaka
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 3058564, Japan
| | - Hiromichi Niikawa
- Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Miyagi 9808575, Japan
| | - Katsuhiro Ohuchi
- Department of Advanced Surgical Technology Research and Development, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 1138519, Japan
| | - Hirokuni Arai
- Department of Cardiovascular Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 1138519, Japan
| | - Kenneth R. McCurry
- Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic, Cleveland, OH 44195, USA
- Department of Inflammation and Immunology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
- Transplant Center, Cleveland Clinic, Cleveland OH 44195, USA
| | - Toshihiro Okamoto
- Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic, Cleveland, OH 44195, USA
- Department of Inflammation and Immunology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
- Transplant Center, Cleveland Clinic, Cleveland OH 44195, USA
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