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. 2009 Aug;24(8):907-14.
doi: 10.1007/s00384-009-0733-z. Epub 2009 May 28.

Evaluation of intraperitoneal lavage cytology before colorectal cancer resection

Shoichi Fujii  1 , Hiroshi Shimada, Shigeru Yamagishi, Mitsuyoshi Ota, Chikara Kunisaki, Hideyuki Ike, Yasushi Ichikawa
Affiliations

Evaluation of intraperitoneal lavage cytology before colorectal cancer resection

Shoichi Fujii et al. Int J Colorectal Dis. 2009 Aug.

Abstract

Purpose: The aim of this study was to assess the usefulness of intraperitoneal lavage cytology (lavage Cy) status before the resection of colorectal cancer as a predictive factor of peritoneal recurrence.

Materials and methods: The lavage Cy-positive [lavage Cy (+)] rate, peritoneal recurrence rate, and 5-year survival rate were examined in 298 cases of colorectal cancer in relation to various clinicopathological factors.

Results: The overall lavage Cy (+) rate was 6.0%. The lavage Cy (+) rate within the group with peritoneal and hepatic metastases was significantly higher than that in the group without metastases (46.7% vs. 3.9% and 26.9% vs. 4.0%, respectively). The lavage Cy (+) rate was not significantly associated with any of the clinicopathological factors examined. The peritoneal recurrence rate was higher in the lavage Cy (+) group than in the lavage Cy-negative [lavage Cy (-)] group, although the difference was not statistically significant. There was no significant difference in survival, regardless of the lavage Cy status, among the 263 patients who underwent curative resection.

Conclusion: The lavage Cy status before resection was not a useful predictive factor of peritoneal recurrence in cases of colorectal cancer.

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