食道癌５年以上生存例の検討

Abstract

Fifteen patients who survived for at least 5 years (long-term survivor group) and 24 patients who died of recurrence within 5 years after surgery (early death group) of the esophageal cancer in our department during the period 1964 and August 1984 were examined. We compared age, sex, location of lesion, X-ray type, longitudinal diameter of tumor, depth of invasion, lymph node metastasis, histological stage, blood vessel invasion, lymphatic invasion, therapeutic effect of preoperative radiation, and presence or absence of postoperative adjuvant therapy of two groups in order to study the factors affecting the postoperative prognosis of esophageal cancer. The results were as follows: 1) The incidence of lymph node metastasis in the long-term survivor group was lower (P=0. 003) than in the early death group and the number of patients in whom preoperative radiation was therapeutically effective was greater (P=0. 040) in the long-term survivor group than in the early death group. 2) The number of female patients was higher in the long-term survivor group, and the number of patients without blood vessel invasion, v (-), tended to be greater in the long-term survivor group. 3) There were 8 patients who survived for more than 10 years among the 15 long-term survivors, and longest survival period was 21 years. 4) Cumulative survival rate of 5 and 10 years were 37. 8% and 31. 0%, respectively, for 38 patients with curative resection.