title: Optimum treatment strategy for superficial esophageal cancer: endoscopic mucosal resection versus radical esophagectomy.
abstract: This study was designed to determine the optimum treatment for a superficial esophageal cancer involving the mucosal or submucosal layer of the esophagus. The subjects were 150 patients with a superficial esophageal cancer who underwent endoscopic mucosal resection (EMR) or esophagectomy in Kurume University Hospital from 1981 to 1997. The mortality and morbidity rates, survival rate, and recurrence rate were retrospectively compared for (1) 35 patients who underwent EMR and 37 patients who underwent esophagectomy for a mucosal esophageal cancer and (2) 45 patients who underwent extended radical esophagectomy and 33 patients who underwent less radical esophagectomy for a submucosal esophageal cancer. Among the 72 patients with a mucosal cancer, lymph node metastasis/recurrence was observed in only one (1%); whereas of 78 patients with a submucosal cancer it was observed in 30 (38%). Among patients with a mucosal cancer the mortality and morbidity rates after EMR were lower than for those after esophagectomy. The survival rate after EMR was the same as that after esophagectomy. No recurrence was observed after either treatment modality. Among the patients with a submucosal cancer, the survival rate was higher and the recurrence rate lower after extended radical esophagectomy; than after less radical esophagectomy; the mortality and morbidity rates after extended radical esophagectomy were the same as those after less radical esophagectomy. Multivariate analysis demonstrated that the treatment modality (EMR versus esophagectomy) did not influence the survival of patients with a mucosal esophageal cancer, whereas it strongly influenced the survival of patients with a submucosal esophageal cancer. We concluded that EMR was the mainstay of treatment for a mucosal esophageal cancer, and extended radical esophagectomy was the mainstay of treatment for a submucosal esophageal cancer.
authors.affiliation: Department of Surgery, Kurume University School of Medicine, 67 Asahi-machi, Kurume City, Fukuoka 830-0011, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Fujita
authors.forename: S
authors.initials: S
authors.lastname: Sueyoshi
authors.forename: H
authors.initials: H
authors.lastname: Yamana
authors.forename: K
authors.initials: K
authors.lastname: Shinozaki
authors.forename: U
authors.initials: U
authors.lastname: Toh
authors.forename: Y
authors.initials: Y
authors.lastname: Tanaka
authors.forename: T
authors.initials: T
authors.lastname: Mine
authors.forename: M
authors.initials: M
authors.lastname: Kubota
authors.forename: K
authors.initials: K
authors.lastname: Shirouzu
authors.forename: A
authors.initials: A
authors.lastname: Toyonaga
authors.forename: H
authors.initials: H
authors.lastname: Harada
authors.forename: S
authors.initials: S
authors.lastname: Ban
authors.forename: M
authors.initials: M
authors.lastname: Watanabe
authors.forename: Y
authors.initials: Y
authors.lastname: Toda
authors.forename: E
authors.initials: E
authors.lastname: Tabuchi
authors.forename: N
authors.initials: N
authors.lastname: Hayabuchi
authors.forename: H
authors.initials: H
authors.lastname: Inutsuka
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000401:mortality / Q000473:pathology / Q000601:surgery* / Q000628:therapy; D017024:Chemotherapy, Adjuvant; D004938:Esophageal Neoplasms / Q000401:mortality / Q000473:pathology / Q000601:surgery* / Q000628:therapy; D016629:Esophagectomy / Q000379:methods*; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011379:Prognosis; D018714:Radiotherapy, Adjuvant; D012189:Retrospective Studies; D016019:Survival Analysis; D016896:Treatment Outcome