title: [The effect of preoperative chemo-radiotherapy in the treatment of locally advanced squamous cell carcinoma in the upper- and middle-thirds of the esophagus].
abstract: OBJECTIVE
  The aim of this study was to compare the efficiency of the preoperative combined chemo-radiotherapy in the treatment of locally advanced squamous cell carcinoma in different locations of the oesophagus.
  
  
  METHODS
  Between 1997 and 2005, 102 patients with locally advanced (T3-4) squamous cell oesophageal cancer received preoperative chemo-radiotherapy. In 40 cases, the tumour was localised in the upper-third (Group I), while in 62 cases, in the middle-third of the oesophagus (Group II). Survival rates of patients receiving neoadjuvant therapy were compared with a historical control group. In addition, Group I and Group II were compared to each other, as well.
  
  
  RESULTS
  survival rate was significantly better after neoadjuvant therapy (p:0.0042) Resection was performed in 70% of the patients from Group I, and in 50% of those complete pathological remission (pCR) was observed. The perioperative morbidity and mortality rates were 43% and 14%, respectively. As far as Group II, 69% of the patients underwent oesophageal resection, with a perioperative mortality of 18% and morbidity rate of 62%. pCR was observed only in 7% of the cases. The median survivals (21 and 22 months) and the R0 resection rates (82 and 84%) were similar in the two groups. The pCR subgroup showed a significantly better survival rate.
  
  
  CONCLUSIONS
  In this study, we demonstrated that preoperative chemo-radiotherapy increases survival in locally advanced oesophageal cancer. A significantly higher rate of complete response was observed in patients with upper-third oesophageal cancer. It seems that this group has superior sensitivity to multimodal treatment; therefore, our results support a new prognostic factor in oesophageal cancer treatment.
authors.affiliation: PTE AOK Sebeszeti Klinika, Pécs. andras.papp@aok.pte.hu
authors.forename: András
authors.initials: A
authors.lastname: Papp
authors.forename: László
authors.initials: L
authors.lastname: Cseke
authors.forename: Gábor
authors.initials: G
authors.lastname: Pavlovics
authors.forename: Róbert
authors.initials: R
authors.lastname: Farkas
authors.forename: Gábor
authors.initials: G
authors.lastname: Varga
authors.forename: Sándor
authors.initials: S
authors.lastname: Márton
authors.forename: Lászlo
authors.initials: L
authors.lastname: Pótó
authors.forename: Olga
authors.initials: O
authors.lastname: Esik
authors.forename: Ors Péter
authors.initials: OP
authors.lastname: Horváth
mesh_terms: D000328:Adult; D000368:Aged; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D002294:Carcinoma, Squamous Cell / Q000188:drug therapy* / Q000401:mortality / Q000532:radiotherapy* / Q000601:surgery; D017024:Chemotherapy, Adjuvant; D004938:Esophageal Neoplasms / Q000188:drug therapy* / Q000401:mortality / Q000532:radiotherapy* / Q000601:surgery; D016629:Esophagectomy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D020360:Neoadjuvant Therapy / Q000379:methods*; D018714:Radiotherapy, Adjuvant; D012189:Retrospective Studies; D016019:Survival Analysis; D016896:Treatment Outcome