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. 2022 Nov 10;13:1028582. doi: 10.3389/fneur.2022.1028582

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Copyright © 2022 Liu, Zhang, Wang, Li and Zhang.

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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Mean arterial pressure (MAP) changes in the two groups. The MAP values significantly differed among the eight time points as well as between the two groups (P < 0.05). MAP in group B was lower than in group S at 30 min after the start of the operation, 60 min after the start of operation, immediately after drug withdrawal, and immediately after extubation (P < 0.05).