The, surgical management is the only effective and curative method for the colorectal cancer presently. In spite of many surgeons´ try to complete cure of the colorectal cancer, the death owing to this disease is high in Korea as well as in western countries.
Some difficulties occur in evaluating reports on the results of the´ treatment, for classification of the extent of the disease at the time of operation is often obscure.. A classification based on the extent of the cancer by operative findings and pathological examination of the removed specimen is able to make a comparison of the results of various surgical techniques more meaning-ful.
In this study, 654 patients who diagnosed as colorectal cancer and underwent surgical treatment before Dec. 1976 at Catholic Medical Center (7 hospitals), Pildong Sacred Heart Hospital and Pusan Gospel Hospital were followed-up and were evaluated in various ways.
The data analysis was performed by CDC-3300 computer.
The results were as follows:
1. The ratio between male and female was 1.73: 1 and the most frequent age group in male, female and total patients were 50 to 59, 60 to 69 and 50 to 59 respectively.
2. 89.2% of all patients came to hospital within 12 months history of illness.
3. In more than half of-the patients, the most frequent symptom was change in bowel habits. 4. The most common site of the colorectal cancer was the anorectal area (37.9%). . 5: There, was no significance between the colorectal cancer, and blood type.
6´ The diagnostic accuracies of the colorectal cancer were 83.3% by.sigmoidoscopy and 80.9% by barium enema.
7. The hemorrhoid was the most frequent associated disease in the colorectal cancer patients. The 7ft hemicolectomy´yeas the most common operation (28.8%) in this study and this group had a 5-year survival rate of 25.2%/,.
9. The most common type of cancer was adenocarcinoma(87.3%) in all patients, but anorectal area had a squamous cell, carcinoma of 20.6%.
10. 386 patients were analyzed along the pathological reports and they were classified by Dukes classification. Among them, there were 66 patients with Dukes A. lesions. From this group 43:9% survived 5-years. 158 patients classified as Dukes B had a 5-year survival rate of 22..2%- and 162 patients with Dukes C and D had a 5-year survival rate of 0%.
11. Overall 5-year survival rate for 265 patients who underwent surgery before Dec. 1971 was 26.0%.
12. Life table was made along the life table method to calculate the life expectancy every 6 months after surgical treatment in 614 patients who were known whether survived or died. The expectant survival rate during the first 6 months from time of operation was 79.5%. The next 6 months expectant survival rate of the just previous 6 months survivors was 91.4%. In this way, the possibility which 54 months survivors will be alive next 6 months was 97.0%.
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