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ZJUS-B
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology)  2014, Vol. 15 Issue (10): 870-878    DOI: 10.1631/jzus.B1400130
Articles     
Relationship between post-operative cognitive dysfunction and regional cerebral oxygen saturation and β-amyloid protein
Xi-ming Li, Ming-tao Shao, Jian-juan Wang, Yue-lan Wang
Department of Anesthesiology, Affiliated Qianfoshan Hospital of Shandong University, Jinan 250014, China; Department of Anesthesiology, Linyi City People\'s Hospital, Linyi 276000, China; Department of Emergency Surgery, Linyi City People\'s Hospital, Linyi 276000, China; Department of Anesthesiology, Shandong Lunan Ophthalmologic Hospital, Linyi 276000, China
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Abstract  Objective: To investigate the relationship between post-operative cognitive dysfunction (POCD) and regional cerebral oxygen saturation (rSO2) and β-amyloid protein (Aβ) in patients undergoing laparoscopic pancreaticoduodenectomy. Methods: Fifty patients undergoing elective laparoscopic pancreaticoduodenectomy received five groups of neuropsychological tests 1 d pre-operatively and 7 d post-operatively, with continuous monitoring of rSO2 intra-operatively. Before anesthesia induction (t0), at the beginning of laparoscopy (t1), and at the time of pneumoperitoneum 120 min (t2), pneumoperitoneum 240 min (t3), pneumoperitoneum 480 min (t4), the end of pneumoperitoneum (t5), and 24 h after surgery, jugular venous blood was drawn respectively for the measurement of Aβ by enzyme-linked immunosorbent assay (ELISA). Results: Twenty-one cases of the fifty patients suffered from POCD after operation. We found that the maximum percentage drop in rSO2 (rSO2, %max) was significantly higher in the POCD group than in the non-POCD group. The rSO2, %max value of over 10.2% might be a potential predictor of neurocognitive injury for those patients. In the POCD group, the plasma Aβ levels after 24 h were significantly higher than those of pre-operative values (P<0.01). After 24 h, levels of plasma Aβ in the POCD group were significantly higher than those in the non-POCD group (P<0.01). Conclusions: The development of POCD in patients undergoing laparoscopic pancreaticoduodenectomy is associated with alterations of rSO2 and Aβ. Monitoring of rSO2 might be useful in the prediction of POCD, and Aβ might be used as a sensitive biochemical marker to predict the occurrence of POCD.

Key words： Laparoscopic pancreaticoduodenectomy      Regional cerebral oxygen saturation      β-Amyloid protein      Post-operative cognitive dysfunction     
Received: 06 May 2014      Published: 08 October 2014
CLC:  R74  
  R446.11+2  
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Xi-ming Li
Ming-tao Shao
Jian-juan Wang
Yue-lan Wang
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Xi-ming Li, Ming-tao Shao, Jian-juan Wang, Yue-lan Wang. Relationship between post-operative cognitive dysfunction and regional cerebral oxygen saturation and β-amyloid protein. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2014, 15(10): 870-878.

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http://www.zjujournals.com/xueshu/zjus-b/10.1631/jzus.B1400130     OR     http://www.zjujournals.com/xueshu/zjus-b/Y2014/V15/I10/870

[1] Xi-ming Li, Feng Li, Zhong-kai Liu, Ming-tao Shao. Erratum to: Investigation of one-lung ventilation postoperative cognitive dysfunction and regional cerebral oxygen saturation relations[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2016, 17(7): 568-568.
[2] Xi-ming Li, Feng Li, Zhong-kai Liu, Ming-tao Shao. Investigation of one-lung ventilation postoperative cognitive dysfunction and regional cerebral oxygen saturation relations[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2015, 16(12): 1042-1048.