Publications [#355236] of Chi Wei C. Chan

Papers Published

1. Berger, M; Murdoch, DM; Staats, JS; Chan, C; Thomas, JP; Garrigues, GE; Browndyke, JN; Cooter, M; Quinones, QJ; Mathew, JP; Weinhold, KJ; MADCO-PC Study Team, Flow Cytometry Characterization of Cerebrospinal Fluid Monocytes in Patients With Postoperative Cognitive Dysfunction: A Pilot Study., Anesth Analg, vol. 129 no. 5 (November, 2019), pp. e150-e154 [doi]
   (last updated on 2026/01/16)

   Abstract:
   Animal models suggest postoperative cognitive dysfunction may be caused by brain monocyte influx. To study this in humans, we developed a flow cytometry panel to profile cerebrospinal fluid (CSF) samples collected before and after major noncardiac surgery in 5 patients ≥60 years of age who developed postoperative cognitive dysfunction and 5 matched controls who did not. We detected 12,654 ± 4895 cells/10 mL of CSF sample (mean ± SD). Patients who developed postoperative cognitive dysfunction showed an increased CSF monocyte/lymphocyte ratio and monocyte chemoattractant protein 1 receptor downregulation on CSF monocytes 24 hours after surgery. These pilot data demonstrate that CSF flow cytometry can be used to study mechanisms of postoperative neurocognitive dysfunction.