title: Prognostic Significance of Preoperative Serum Alpha- fetoprotein in Hepatocellular Carcinoma and Correlation with Clinicopathological Factors: a Single-center Experience from China.
abstract: OBJECTIVE
  To investigate the prognosis significance of preoperative serum alpha-fetoprotein (AFP) and the correlation with clinicopathological factors of hepatocellular carcinoma (HCC) patients who underwent hepatectomy.
  
  
  METHODS
  Clinicopathological data of retrospective analysis were collected for 251 HCC patients undergoing hepatectomy in this study. According to preoperative AFP level, patients were categorized into AFP-negative (0-20 ng/mL) and AFP-positive (>20 ng/mL) groups for Kaplan-Meier analysis and Cox proportional hazard regression modeling.
  
  
  RESULTS
  The results demonstrated that increased AFP was associated with longer prothrombin time (PTs), liver capsule invasion, low grade differentiation, and late Barcelona Clinic Liver Center (BCLC) stage. Moreover, the female patients had a greater prevalence of increased preoperative AFP than male patients [284.8 (3.975-3167.5) vs (3.653-140.65); Z-2.895, p=0.004]. The 1-, 3-, and 5-year recurrence-free survival (RFS) rates were 78.1, 57.5, and 40.6 % in the AFP-negative group and 61.8, 37.7, and 31.4 %, respectively, in the AFP-positive group (log-rank test 8.312, p=0.004). The 1-, 3-, and 5-year overall survival (OS) rates were 94.4, 83.8, and 62.3% in the AFP-negative group and 87.2, 60.0, and 36.7%, respectively, in the AFP-positive group. The difference was statistically significant (log-rank test, 16.884, p=0.000). Cox proportional-hazards model identified preoperative AFP to be an independent prognostic predictor of overall survival.
  
  
  CONCLUSIONS
  Preoperative serum AFP is an independent predictor of prognosis among HCC patients following surgical resection. Female patients have a higher preoperative AFP than their male counterparts.
authors.affiliation: Department of Abdominal Surgical Oncology, State Key Laboratory of Molecular Oncology, Cancer Institute and Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China E-mail : dr.wujx@hotmail.com.
authors.forename: Song-Lin
authors.initials: SL
authors.lastname: An
authors.forename: Ting
authors.initials: T
authors.lastname: Xiao
authors.forename: Li-Ming
authors.initials: LM
authors.lastname: Wang
authors.forename: Wei-Qi
authors.initials: WQ
authors.lastname: Rong
authors.forename: Fan
authors.initials: F
authors.lastname: Wu
authors.forename: Li
authors.initials: L
authors.lastname: Feng
authors.forename: Fa-Qiang
authors.initials: FQ
authors.lastname: Liu
authors.forename: Fei
authors.initials: F
authors.lastname: Tian
authors.forename: Jian-Xiong
authors.initials: JX
authors.lastname: Wu
mesh_terms: D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor; D006528:Carcinoma, Hepatocellular / Q000097:blood* / Q000473:pathology* / Q000601:surgery; D002681:China; D018572:Disease-Free Survival; D005260:Female; D006498:Hepatectomy; D006801:Humans; D008113:Liver Neoplasms / Q000097:blood* / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D060787:Neoplasm Grading; D009367:Neoplasm Staging; D016016:Proportional Hazards Models; D011517:Prothrombin Time; D012189:Retrospective Studies; D012737:Sex Factors; D015996:Survival Rate; D000509:alpha-Fetoproteins / Q000378:metabolism*
chemical_list: D014408:Biomarkers, Tumor; D000509:alpha-Fetoproteins