PubMed · 711846
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R G Cornell. 1978. Sequence length for repeated screening tests.. https://doi.org/10.1016/0021-9681(78)90041-3
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In Norway, about 2,800 cases of colorectal cancer are diagnosed every year. Two-thirds of the patients undergo potentially curative surgery and almost half of them develop local or distant metastases. The follow-up of colorectal cancer patients involves four strategies: Educating the patients about the disease, symptoms of relapse, and risk of hereditariness; Early diagnosis of relapse, to make curative re-surgery possible; Diagnosis of metachronous/synchronous cancer(s); Recording the results of current surgical techniques. The Norwegian Gastrointestinal Cancer Group recommend a four-year follow-up programme (every third month for two years and then twice a year) of colorectal cancer patients. It is suggested that patients treated with low anterior resection are followed regularly by means of rectoscopy and local examination (digital or by ultrasound) undertaken by specialist (surgeon or gastroenterologist). The others should be followed up mainly by general practitioners. Carcinoembryonic antigen (CEA)-monitoring is suggested every third month for two years, and then every sixth month. Colonoscopy is recommended at one and four year follow-up. Patients with normal CEA levels prior to surgery should be evaluated by ultrasound of the liver every sixth month for four years.
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