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KMID : 0857020020170010065
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Kosin Medical Journal
2002 Volume.17 No. 1 p.65 ~ p.70
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hanging Trends of Colorectal Cancer experienced in the Department of General Surgery, Gospel Hospital, Kosin University in the last decade(1991-2000)
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Lee Seung-Hyun
Ahn Byung-Kwon
Baek Sung-Uhn
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Abstract
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Background : In western countries colorectal cancers are one of the most common malignant tumors. In Korea, colorectal cancers are the fourth common malignancy following gastric cancer, hapatoma, and lung cancer. It’s incidence and importance has been rising over the past 10 years. We reviewed colorectal cancer patients to study the changing pattern in the last decade.
Methods : We reviewed 1453 patients with primary colorectal cancers who were operated at Gospel Hospital, School of Medicine, Kosin University between 1991 and 2000, retrospectively. The colorectal patients were divided into two groups. First group was the patients who were operated in the first half of the decade, between 1991 to 1995. The second group was the patients who were operated in the second half of the decade, between 1996 to 2000. We compared the two groups according to sex, age, location, tumor size, preoperative serum carcinoembryonic antigen(CEA), and stages of the patients.
Results : We operated the 1453 colorectal cancer patients in the last decade. Males were accounted for 734 of the cases, and females were accounted for 719 of the cases(sex ratio was 1:1). The Peak age incidence was 7th decade(30.4%). Of the tumor location, colon cancer cases totalled 598(48.7%), rectal cancer cases totalled 630(51.3%). Of the rectal cancer operation, the number of the low anterior resection were 337(67.0%), the abdominoperineal resection were 166(33.0%). The incidence of stage Ⅰ, Ⅱ, Ⅲ and Ⅳ were 10.9%, 35.4%, 36.2% and 16.3%, respectively. In comparison of the 2 group, the number of the patients who were operated in the first half of the decade were 519, in the second half of the decade were 934(1:1:8). The sex ratio was 1:1 and peak age incidence was 6th decade in the first half of the decade. In the second half of the decade, sex ratio was 1:1 and peak age incidence was 7th decade. The number of colon cancers were 194(49.7%), rectal cancers were 196(50.3%) in the first half of the decade. In the second half of the decade, the number of the colon cancer were 404(48.2%), rectal cancers were 434(51.8%). Of the rectal cancer operation comparing low anterior resection and abdominoperineal resection, the incidence of the lower anterior resection was 56.8%(83/146) in the first half of the decade, 71.1%(254/357) in the second half of the decade. In the preoperative serum CEA level, 177 cases(37.2%) were more than 5ng/ml in the first half of the decade, 254 cases(43.5%) in the second half of the decade. The incidence of stage Ⅰ, Ⅱ, Ⅲ and Ⅳ were 8.8%, 34.2%, 36.2% and 19.8% in the first half of the decade, 12.3%, 36.1%, 36.1% and 14.2% in the second half of the decade.
Conclusion : During the second half of the decade, there was a significant increase of the incidence of the total number, the older patients, the higher CEA level in colorectal cancers. And the incidence of low anterior resection was increased in rectal cancer operations. The incidence of stage Ⅰ, Ⅱ was slightly increased in the second half of the decade, but not significant. There was no difference of the distributions according to age, sex, tumor location, size.
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KEYWORD
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Colorectal cancer, Trends
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