Acupuncture-related techniques for postoperative cognitive complications: a systemic review and meta-analysis.

"Declarations Ethics and approval and consent to participateThe corresponding author affirms that the manuscript is an honest, accurate, and transparent account of the study being reported; that no important aspects of the study have been omitted; and that any discrepancies from the study as planned have been explained. Consent for publicationWe have reported whether we plan to disseminate the results to study participants and or patient organizations or stated that dissemination to these groups is not possible/applicable. Competing interestsAll authors have completed the Unified Competing Interest form and declare: no support from any organization for the submitted work; no financial relationships with any organisations that might have an interest in the submitted work in the previous 3 years, no other relationships or activities that could appear to have influenced the submitted work. Competing interests All authors have completed the Unified Competing Interest form and declare: no support from any organization for the submitted work; no financial relationships with any organisations that might have an interest in the submitted work in the previous 3 years, no other relationships or activities that could appear to have influenced the submitted work."

"Funding The National Science Foundation of China (Nos. 81871028 and 82293644), the TCM cultivating program (No. 2021ZY019) and the Aeromedical Flow PI Program (No. 2022HYPI02). The funder had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review or approval of the manuscript; and decision to submit the manuscript for publication."

"Trial registration PROSPERO (CRD42021258378)."