大腸集検発見癌の特徴 : 検診の効果的・効率的サーベイランスについて  [in Japanese] Characteristics of Colon Cancer Detected by Mass Screening : A Study of Effective Surveillance in Mass Screening for Colorectal Cancer  [in Japanese]

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Abstract

わが国では,大腸癌による死亡率の上昇に対し,早期発見・早期治療を目的として大腸癌集団検診が施行されてきた.当院でも集団検診発見例を多く経験してきたが,逆に実績が上がるにつれて今後の課題も多く認められている.今回1988年より1995年まで当院で発見された症例を,逐年検診群,初回検診群,要精検未受診群の3群に分けて大腸癌検診の効果的・効率的サーベイランスについて検討し以下の結果を得た.(1)逐年検診群では,m癌が多く発見される.(2)初回検診群では多くの癌が発見され,m癌以外のいろいうなstageの癌が発見される.(3)要精検未受診群は,m癌以外の進行した癌が40%に発見されている.以上より初回検診受診率・要精検受診率の向上が大腸癌検診の効率化に有用と思われる.(4)初回検診にて精検を施行し,異常なければ初回検査の見逃し病変を拾うための1年目の経過観察以降は,隔年検診でも問題はないと思われる.

Recently, much attention has been paid to mass screening aiming at early detection and improving of prognosis of colorectal cancer in Japan. Sixty-four cancers in 54 patients who underwent mass screening were studied.<BR>They were classified into three groups : group A (those who underwent mass screening every year and were positive in occult blood test for the first time), group B (those who underwent mass screening for the first time and were positive in occult blood test), and group C (those who underwent mass screening and were positive in occult blood test a few times but did not undergo further examination by barium enema or colonofiber-scopy).<BR>Early and small-sized colorectal cancer was found in most patients in group A. Advanced colorectal cancer was found in 22% in group B, and 20% in group C.<BR>Therefore, people in group B and C should be encourage to undergo mass screening regularly.

Journal

  • Nippon Daicho Komonbyo Gakkai Zasshi

    Nippon Daicho Komonbyo Gakkai Zasshi 50(3), 149-154, 1997-03-01

    The Japan Society of Coloproctology

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