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. 2022 Aug 16;15:17562864221114356. doi: 10.1177/17562864221114356

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© The Author(s), 2022

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 1. — Flow chart of perioperative assessment for the risk of POCD and the time points for neuropsychological tests.

A proposed strategy for identifying risk factors of POCD is presented in the flow chart. The risk factors could be categorized as preoperative, intraoperative and postoperative risk factors and assessed accordingly. Neuropsychological tests should be carried out at admission or 1 day before surgery, 1, 3, 5 and 7 days after surgery or at discharge. When POCD is present at time points after surgery, additional neuropsychological tests will be carried out at follow-up at 1 and 3 months, and may be carried out again during longitudinal follow-up.