title: [The function of the level of serum carcinoembryonic antigen on early recurrence of non-small cell lung cancer].
abstract: OBJECTIVE
  To explore clinical and pathological factors correlating with early recurrence of resected non small cell lung cancer (NSCLC), and to further understand the function of serum carcinoembryonic antigen (CEA) on NSCLC.
  
  
  METHODS
  93 patients of NSCLC were selected. All of them received resection and were followed up for more than one year. The first time of recurrence was recorded. Logistic univariate and multivariable analysis were used to find the factors that affect the early recurrence of NSLSC, including age, sex, serum CEA level, tumor size, tumor location, tumor differentiation, histological type and clinical staging, and the ability of factors predicting the recurrence were compared by receiver operating characteristic (ROC) curve.
  
  
  RESULTS
  Of all the clinical and pathological factors that are correlated with early recurrence of NSCLC, the serum carcinoembryonic antigen (CEA) value, clinical staging, and tumor difference are of statistical significance. The preoperative serum CEA value is the most valuable factor to predict early recurrence of NSCLC (ROC area: 0.843, 95% CI: 0.723 approximately 0.963, P = 0.000). When preoperative serum CEA value > 10 micro g/L, patients of NSCLC will have an early recurrence rate of 88%; and when preoperative serum CEA value </= 10 micro g/L, the probability of no early recurrence is 92%.
  
  
  CONCLUSIONS
  For the patients with respectable NSCLC, it is very important to know the precise clinical stage and pathological difference, and so is the preoperative serum CEA value. When preoperative serum CEA value > 10 micro g/L, even if the lesion is of early stage and well differenced, the general situation of patients should be carefully examined for the prompt and accurate treatment to them and close follow up is needed to treat these patients.
authors.affiliation: Thoracic Department of the First Affiliated Hospital of China Medical University, Shenyang 110001, China.
authors.forename: Zhen-fa
authors.initials: ZF
authors.lastname: Zhang
authors.forename: Jian-qun
authors.initials: JQ
authors.lastname: Ma
authors.forename: Nan
authors.initials: N
authors.lastname: Sun
authors.forename: Lin
authors.initials: L
authors.lastname: Zhang
mesh_terms: D014408:Biomarkers, Tumor / Q000097:blood*; D002272:Carcinoembryonic Antigen / Q000097:blood*; D002289:Carcinoma, Non-Small-Cell Lung / Q000097:blood* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D016015:Logistic Models; D008175:Lung Neoplasms / Q000097:blood* / Q000473:pathology / Q000601:surgery; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis*; D012372:ROC Curve; D012307:Risk Factors
chemical_list: D014408:Biomarkers, Tumor; D002272:Carcinoembryonic Antigen