Journal
DISEASES OF THE ESOPHAGUS
Volume 15, Issue 3, Pages 219-225Publisher
BLACKWELL PUBLISHING ASIA
DOI: 10.1046/j.1442-2050.2002.00262.x
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Adenocarcinoma of the esophagogastric junction is recognized as a distinct clinical entity; however, the choice of surgical approaches is controversial. To analyze the results of surgery among patients with adenocarcinoma of the esophagus ( type I) and the cardia ( type II) based on Siewert's classification in Japan, surgical procedures, histopathologic characteristics, and outcome were re-evaluated according to the TNM classification in 1263 patients with adenocarcinoma of the esophagus ( type I) and the cardia ( type II) through a questionnaire sent to the members of the Japanese Society of Esophageal Diseases. One hundred and thirty-four (10.6%) patients had type I tumors and 1129 (89.4%) patients had type II tumors. There were significant differences in sex distribution and associated intestinal metaplasia in the esophagus between patients with type I and type II tumors. Although different surgical approaches were performed, the overall 5-year survival rate was 53% without any difference between the two groups. The significant prognostic factors in general linear models were R category, pN category, and differentiation, but not pT category. There was no difference in survival between patients with stage IIB and III disease. The survival rate of the patients who underwent a transhiatal approach was similar to that of those undergoing a transthoracic approach. The results suggest that Siewert's classification ( type I and type II) is useful in planning treatment strategy for adenocarcinoma of the esophagogastric junction. Lymph node metastasis was the most important prognostic factor, and staging based on the number of lymph node metastases or the extent of lymph node metastasis is necessary.
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