title: Adjuvant chemotherapy with 5-fluorouracil and cisplatin in lymph node-positive thoracic esophageal squamous cell carcinoma.
abstract: BACKGROUND
  In this study we explored the effectiveness of adjuvant chemotherapy in node-positive, resected thoracic esophageal squamous cell carcinoma patients.
  
  
  METHODS
  A prospective study of postoperative chemotherapy in N1 esophageal cancer patients who received curative resection was conducted and compared with the historical control group in regard to recurrence rate, patterns of failure, disease-free survival rate, and overall survival rate. The postoperative chemotherapy consisted of cisplatin (60 mg/m2 intravenously) and 5-fluorouracil (1,000 mg/m2 per day) in a continuous infusion for 4 days. Three cycles were administered at 3-week intervals.
  
  
  RESULTS
  Forty patients were accrued from January 1998 to January 2003 at Samsung Medical Center for adjuvant chemotherapy. The historical control group consisted of 52 patients who received curative resection but not adjuvant chemotherapy during the same period of time. The 3-year disease-free survival rate was 47.6% in the adjuvant group and 35.6% in the control group (p = 0.049). The estimated 5-year overall survival rates were 50.7% in the adjuvant group and 43.7% in the control group (p = 0.228). The significant predictive factors for tumor recurrence were the number of positive lymph nodes (p = 0.008) and the adjuvant chemotherapy (p = 0.030).
  
  
  CONCLUSIONS
  This study suggests that the postoperative chemotherapy may prolong disease-free survival in lymph node-positive, curatively resected esophageal cancer patients. The postoperative treatment modality for esophageal cancer patients should be determined according to the lymph node status and a randomized phase III clinical trial is warranted using adjuvant chemotherapy if the esophageal cancer is lymph node-positive.
authors.affiliation: Division of Hematology-Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors.forename: Jeeyun
authors.initials: J
authors.lastname: Lee
authors.forename: Kyoung-Eun
authors.initials: KE
authors.lastname: Lee
authors.forename: Young-Hyuck
authors.initials: YH
authors.lastname: Im
authors.forename: Won Ki
authors.initials: WK
authors.lastname: Kang
authors.forename: Keunchil
authors.initials: K
authors.lastname: Park
authors.forename: Kwhanmien
authors.initials: K
authors.lastname: Kim
authors.forename: Young Mog
authors.initials: YM
authors.lastname: Shim
mesh_terms: D000328:Adult; D000368:Aged; D000970:Antineoplastic Agents / Q000008:administration & dosage* / Q000009:adverse effects; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage / Q000009:adverse effects; D002294:Carcinoma, Squamous Cell / Q000188:drug therapy* / Q000601:surgery; D017024:Chemotherapy, Adjuvant / Q000379:methods; D002945:Cisplatin / Q000008:administration & dosage* / Q000009:adverse effects; D004938:Esophageal Neoplasms / Q000188:drug therapy* / Q000601:surgery; D016629:Esophagectomy; D005260:Female; D005472:Fluorouracil / Q000008:administration & dosage* / Q000009:adverse effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D009325:Nausea / Q000139:chemically induced; D009364:Neoplasm Recurrence, Local; D009503:Neutropenia / Q000139:chemically induced; D011446:Prospective Studies; D016019:Survival Analysis; D016896:Treatment Outcome; D014839:Vomiting / Q000139:chemically induced
chemical_list: D000970:Antineoplastic Agents; D002945:Cisplatin; D005472:Fluorouracil