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. 2022 Jan 24;8:826682. doi: 10.3389/fsurg.2021.826682

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Copyright © 2022 Ma, Dong, Wang, Gu, Fang and Gao.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Comparison of the changes in blood gas analysis values and oxygenation index between the two groups at different times. (A) Comparison of PaO₂. (B) Comparison of PaCO₂. (C) Comparison of PaCO₂/FiO₂. Compared with the same group pre-treatment, ^&P < 0.05. Compared with the same group 8 h post-ventilation, ^#P < 0.05. Comparison with control group over the same period, ^*P <0.05.