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Abstract
The validity of lavage cytology for accurate gastric cancer staging is demonstrated in this study. Between 1988 and 1996, 29 cases (8. 4%) were revealed as positive among 347 patients with resectable gastric cancer in whom peritoneal lavage cytology was performed. The survival rate of cytology-positive patients in each stage was found to be worse than that of all other patients in the same stage. The prognostic factors selected by the univariate analysis were enrolled for multivariate analysis using Cox's proportional hazards model with the backward stepwise procedure. As a result, although cytology finding was selected as an independent prognostic factor, macroscopic finding of dissemination was not selected. Our data indicate that positive cytology findings indicated a poor prognosis, and therefore the results of peritoneal lavage cytology should be included as a factor in gastric cancer staging.
Published Version
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