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How often should patients undergo screening colonoscopy if their initial exams revealed no polyps or only small distal hyperplastic polyps? Current guidelines recommend a 10-year interval ...

However, this is literally the case with a Japanese researcher, Dr Akira Horiuchi, who won the Medical Education Prize for devising a "self-colonoscopy" technique using a small endoscope Akira ...

For now, however, patients should stick with more proven techniques, researchers said ... patients do them every three years ...