Impact of ambient temperature on postoperative cognitive dysfunction in elderly patients surgery: A seasonal comparison in tropical regions

Figure 1 Expression levels of S100 calcium binding protein B and Neuron-specific enolase at various time points. A: Neuron-specific enolase; B: S100 calcium binding protein B. ^aP value = 0.003. Post-extubation vs preoperative serum neuron-specific enolase levels in winter surgical patients. ^bP value = 0.02. Postoperative 24 hours vs preoperative neuron-specific enolase levels in winter surgical patients. ^cP value = 0.05. Post-extubation vs preoperative serum neuron-specific enolase levels in summer surgical patients. ^dP value = 0.04. Postoperative 24 hours vs preoperative neuron-specific enolase levels in summer surgical patients. ^eP value = 0.06. Post-extubation vs preoperative serum S100 calcium binding protein B levels in winter surgical patients. ^fP value = 0.02. Postoperative 24 hours vs preoperative S100 calcium binding protein B levels in winter surgical patients. ^gP value = 0.003. Post-extubation vs preoperative serum S100 calcium binding protein B levels in summer surgical patients. ^hP value = 0.01. Postoperative 24 hours vs preoperative S100 calcium binding protein B levels in summer surgical patients. NSE: Neuron-specific enolase; S100β: S100 calcium binding protein B.