Association between BDNF and postoperative cognitive dysfunction across surgical stages: a systematic review and meta-analysis
The subgroup analysis indicated that the type of surgery may contribute to the high heterogeneity observed in 24-h postoperative BDNF and in 24-h postoperative ΔBDNF, and suggest that intraoperative BDNF levels and their dynamic changes may serve as preliminary exploratory biomarker for POCD.