Skip to main content
. Author manuscript; available in PMC: 2014 Feb 28.
Published in final edited form as: Anesthesiology. 2013 Jul;119(1):52–60. doi: 10.1097/ALN.0b013e31828ce55d

Fig. 1.

Fig. 1

Surgery under isoflurane anesthesia is associated with increases in human cerebrospinal fluid (CSF) β-amyloid protein (Aβ)40 levels 24 h after the anesthesia. The preoperative baseline, the 2- and 24-h postoperative human CSF Aβ40 levels following spinal (S), spinal plus desflurane (SD), and spinal plus isoflurane (SI) anesthesia are presented. A, The differences between the 2-h postoperative and preoperative baseline human CSF Aβ40 levels are not significantly different among the S, SD, or SI anesthesia group (F = 0.66, P = 0.52, N.S.). B, The differences between the 24-h postoperative and the preoperative baseline human CSF Aβ40 levels are signifi-cantly different among the S, SD, or SI anesthesia group (F = 4.25, * P = 0.02). Specifically, the difference between the 24-h postoperative and the preoperative baseline human CSF Aβ40 levels following SI anesthesia is positively greater than that following S anesthesia, F = 7.62, ** P = 0.006.