التفاصيل البيبلوغرافية
| العنوان: |
The Effect of Attending a Flexible Sigmoidoscopic Screening Program on the Prevalence of Colorectal Adenomas at 13-Year Follow-Up. |
| المؤلفون: |
Thiis-Evensen, Espen, Hoff, Geir S., Sauar, Jostein, Majak, Bernhard M., Vatn, Morten H. |
| المصدر: |
American Journal of Gastroenterology (Springer Nature); Jun2001, Vol. 96 Issue 6, p1901-1907, 7p, 5 Charts, 2 Graphs |
| مصطلحات موضوعية: |
COLON cancer, SIGMOIDOSCOPY, MEDICAL screening, EPIDEMIOLOGY, CANCER prevention |
| مستخلص: |
OBJECTIVES: Understanding the epidemiology of colorectal adenomas is a prerequisite for designing follow-up programs after polypectomy. The aim of the study was to investigate the effect of polypectomy on the long-term prevalence of adenomas. METHODS: In 1983, a total of 799 men and women aged 50-59 yr were drawn from the general population register. Of these, 400 comprised a screening group and 399 a matched control group. The screenees were invited to undergo a once-only flexible sigmoidoscopy. Persons with polyps had a baseline colonoscopy with follow-ups in 1985 and 1989. In 1996, both the screenees and the controls were invited to a colonoscopic examination, RESULTS: In 1996, a total of 451 (71%) individuals attended. Adenomas were found in 78 (37%) individuals in the screening group and 103 (43%) in the control group, relative risk (95% confidence interval): 0.9 (0.7-1.1), p = 0.3, and high-risk adenomas (severe dysplasia, adenomas ≥10 mm, villous components) were found in 16 (8%) and 32 (13%), respectively; relative risk (95% confidence interval): 0.6 (0.3-1.0), p = 0.07. CONCLUSIONS: There was no significant difference in adenoma prevalence between the group after the screening program and the controls after the usual care. There was a trend toward more high-risk adenomas in the control group. This suggests a very limited effect of one-time screening sigmoidoscopy with surveillance colonoscopy on the prevalence of adenomas, but a preventive effect on the development of high-risk adenomas consistent with the reported effect on cancer prevention. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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