title: Long-term survival outcomes after definitive chemoradiation versus surgery in patients with resectable squamous carcinoma of the esophagus: results from a randomized controlled trial.
abstract: BACKGROUND
  The aim of this study was to report on the 5-year survival outcomes of patients with resectable esophageal carcinoma who were treated by definitive chemoradiotherapy (CRT) or standard esophagectomy.
  
  
  METHODS
  Between July 2000 and December 2004, 81 patients with resectable squamous cell carcinoma of the mid- or lower thoracic esophagus were randomized to receive esophagectomy or definitive CRT. The primary outcome was the overall survival and secondary outcomes included disease-free survival, morbidities and mortalities.
  
  
  RESULTS
  Forty-five patients received esophagectomy and 36 patients were treated by definitive CRT. The overall 5-year survival favors CRT but the difference did not reach statistical significance (surgery 29.4% and CRT 50%, P=0.147). A trend to improved 5-year survival was observed for patients suffering from node-positive disease (P=0.061). The 5-year disease-free survival also showed a trend to significance favoring CRT (P=0.068), particularly for patients suffering from node-positive disease (P=0.017). Both the stage of the disease and albumin level were significant predictors to mortality and disease-free survival.
  
  
  CONCLUSIONS
  Definitive CRT for squamous esophageal carcinoma resulted in comparable long-term survival to surgery. Further large-scale studies would be required to further investigate the role of CRT in node-positive patients. Clinicaltrials.gov identifier: NCT01032967.
authors.affiliation: Division of Upper Gastrointestinal Surgery, Department of Surgery, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, SAR, China.
authors.forename: A Y B
authors.initials: AY
authors.lastname: Teoh
authors.forename: P W Y
authors.initials: PW
authors.lastname: Chiu
authors.forename: W K
authors.initials: WK
authors.lastname: Yeung
authors.forename: S Y W
authors.initials: SY
authors.lastname: Liu
authors.forename: S K H
authors.initials: SK
authors.lastname: Wong
authors.forename: E K W
authors.initials: EK
authors.lastname: Ng
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000188:drug therapy* / Q000532:radiotherapy* / Q000601:surgery; D003131:Combined Modality Therapy; D004938:Esophageal Neoplasms / Q000188:drug therapy* / Q000532:radiotherapy* / Q000601:surgery; D006801:Humans; D011446:Prospective Studies; D016019:Survival Analysis