Association between plasma tau and postoperative delirium incidence and severity: a prospective observational study

Autor: Robert D. Sanders, Tyler Ballweg, Amber Bo, Kaj Blennow, Richard Lennertz, Cameron Casey, Henrik Zetterberg, Margaret Parker, Alexander Blair, Zahra Farahbakhsh, Robert A. Pearce, Austin Kayser, Marissa White, Heidi Lindroth
Rok vydání: 2021
Předmět:
Zdroj: Br J Anaesth
ISSN: 0007-0912
DOI: 10.1016/j.bja.2020.08.061
Popis: BACKGROUND: Postoperative delirium is associated with increases in the neuronal injury biomarker, neurofilament light (NfL). Here we tested whether two other biomarkers, glial fibrillary acidic protein (GFAP) and tau, are associated with postoperative delirium. METHODS: A total of 114 surgical patients were recruited into two prospective biomarker cohort studies with assessment of delirium severity and incidence. Plasma samples were sent for biomarker analysis including tau, NfL, and GFAP, and a panel of 10 cytokines. We determined a priori to adjust for interleukin-8 (IL-8), a marker of inflammation, when assessing associations between biomarkers and delirium incidence and severity. RESULTS: GFAP concentrations showed no relationship to delirium. The change in tau from preoperative concentrations to postoperative Day 1 was greater in patients with postoperative delirium (P
Databáze: OpenAIRE