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Natural Progression of Gastric Cancers from the Viewpoint of Morbidity Rate and Rate of Occurrence, with Special Reference to Intervals between Visits M. Nishizawa 1 1Tokyo Metropolitan Cancer Detection Center pp.201-207
Published Date 1984/2/25
DOI https://doi.org/10.11477/mf.1403106958
  • Abstract
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 We calculated the interval that would elapse from the time of earliest possible diagnosis to the patient visiting with a complaint. This was based on the morbidity rate obtained by the use of small-diameter panendoscope and the occurrence rate. In the case of early cancer, the period was between 3.5 years at the shortest. In the case of advanced cancer, 1.3 years, also at the shortest.

 It was found that those diagnosed as healthy by small-diameter panendoscopy could be guaranteed a 3 year period before their next visit, except in the case of 5-10% with scirrhus carcinoma or similar.

 6,498 healthy people, between 50 and 69, were examined by x-ray or small-diameter panendoscope. The detection rate for males was 1.67%, for females 0.91%. The parcentage of early cancer detected was 73%. Compared with national gastric mass screening information, with reference to early cancer in males, the aforementioned result at the Tokyo Metropolitan Cancer Detection Center was 13 times more successful in detection than the national survice. This would suggest that improvement and refinement of national mass screening is long overdue.


Copyright © 1984, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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