title: [Changes in plasma S-100 beta and neuron-specific enolase in peri-operative period of orthotopic liver transplantation and its relationship with encephalopathy after operation].
abstract: OBJECTIVE
  To observe the changes in plasma S-100 beta and neuron-specific enolase (NSE) and to study their relationship with encephalopathy after orthotopic liver transplantation (OLT).
  
  
  METHODS
  Thirty patients without neurological disease undergoing OLT were studied. Plasma S-100 beta and NSE were examined at three time points: after induction of anesthesia (T1), at the end of operation (T2) and 24 hours after reperfusion of the transplant (T3). The difference of plasma S-100 beta and NSE between encephalopathy group and non-encephalopathy group was analyzed.
  
  
  RESULTS
  Eleven patients were complicated with encephalopathy after OLT. In 30 patients, S-100 beta at T2 [(3.715+/-1.523) microg/L] was higher than that at T1 [(1.478+/-0.809) microg/L, P<0.01]; S-100 beta at T3 [(1.765+/-0.894) microg/L] decreased to normal level (T1). NSE at T2 [(26.684+/-7.973) microg/L] was higher than that at T1 [(14.012+/-4.612) microg/L, P<0.01]. At T3, the level of plasma NSE [(18.105+/-7.345) microg/L] was decreased, but higher than that at T1. Plasma S-100 beta and NSE in encephalopathy group (11 cases) and non-encephalopathy group (19 cases) showed the same tendency of change as all of the patients. Plasma S-100 beta at T3 in encephalopathy group [(2.007+/-0.854)microg/L] was higher than that in non-encephalopathy group [(1.468+/-0.903) microg/L, P<0.05], and it was correlated with the presence of encephalopathy (r=0.385, P=0.039), but not at T1 and T2. Plasma NSE at three time points showed no relationship to the presence of encephalopathy.
  
  
  CONCLUSIONS
  The increase in plasma S-100 beta and NSE during OLT indicates the occurrence of damage to the brain. But plasma S-100 beta and NSE cannot predict encephalopathy after OLT.
authors.affiliation: Department of Anesthesiology, Third Affiliated Hospital, Zhongshan University, Guangzhou 510630, Guangdong, China.
authors.forename: Hai-yun
authors.initials: HY
authors.lastname: Sun
authors.forename: Jun
authors.initials: J
authors.lastname: Cai
authors.forename: Hong-yu
authors.initials: HY
authors.lastname: Pang
authors.forename: Zi-qing
authors.initials: ZQ
authors.lastname: Hei
authors.forename: Shang-rong
authors.initials: SR
authors.lastname: Li
mesh_terms: D000328:Adult; D005260:Female; D006501:Hepatic Encephalopathy / Q000209:etiology*; D006801:Humans; D007432:Intraoperative Period; D016031:Liver Transplantation; D008297:Male; D008875:Middle Aged; D009414:Nerve Growth Factors / Q000097:blood*; D010751:Phosphopyruvate Hydratase / Q000097:blood*; D011183:Postoperative Complications / Q000209:etiology; D064568:S100 Calcium Binding Protein beta Subunit; D009418:S100 Proteins / Q000097:blood*
chemical_list: D009414:Nerve Growth Factors; D064568:S100 Calcium Binding Protein beta Subunit; D009418:S100 Proteins; D010751:Phosphopyruvate Hydratase