A Study of Obstructive Colorectal Cancer

Kumi Hasegawa, Kenichi Sugihara, Masayuki Enomoto and Keigo Yoshinaga

Second Department of Surgery, Tokyo Medical and Dental University

In this study, we examined the clinicopathological features and outcomes of obstructive colorectal cancers to determine the optimal surgical treatment for such cases. Of all operative colorectal cancers treated at our facility in 1978∼1998, 46 caser (5.0%) were found to be obstructive and eligible as obstructive group in this study participation. In comparison with 872 non-obstructive cases (control group), obstructive group showed the higher incidence of hepatic metastasis, peritoneal dissemination, post operative death rate, and lower resectability. The outcomes for obstructive group were worse than control group. We compared the clinicopathological features and outcomes of 36 resectable cases in obstructive group with non-obstructive resectable 108 cases, who were extracted from control group matched in gender, age depth of invasion and location of tumor. There were no differences between the two resectable cases except for the size of tumor. The similar curative resectability were observed, and no differences in the outcomes were found. In conclusion, our findings indicate that radical operations for advanced colorectal cancer even in obstructive cases offer an improved chance of long-term survival.

Key words
obstructive colorectal cancer, clinicopathological feature, nested control study

Reprint requests
Kumi Hasegawa Second Department of Surgery, Tokyo Medical and Dental University1-5-45, Yushima, Bunkyo-ku, 113-0034 JAPAN

Accepted
March 22, 2000

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