A SCREENING ABDOMINAL ULTRASOUND PRIOR TO COLONOSCOPY RESULT IN SAFER COLONOSCOPY

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  • より安全な大腸内視鏡検査をめざして～腹部超音波検査による内視鏡前スクリーニング～

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Abstract

Colonoscopy (CF) is an invasive examination. The frequency of adverse events during the preparative procedures for CF and CF is high. Serious adverse events, such as ileus and intestinal perforation, can occur. In particular, patient in whom PEG-electrolyte solution is used to prepare the gut for CF develop adverse events. Therefore, in our hospital, the appropriate preparations for CF are begun in all cases only after on abdominal ultrasound (US) has been done to rule out obvious neoplastic lesions, stenotic changes, or extensions into the intestinal tract wall. From April 2006 to February 2007, 679 CF examinations were done in our hospital, all of the 16 cases who had advanced colon cancer were identified on US prior to CF. No serious adverse events occurred after PEG-electrolyte solution was used to prepare patients for CF based on the US results. The rate of advanced colon cancers discovered using US prior to CF was 2.4%. On US done prior to CF, obstructive lesions, tumors, and other findings that can cause an ileus could be detected. Therefore, by first doing US appropriate preparation for CF can be chosen, and serious adverse events can be prevented. US is a non-invasive examination that does not expose the patient to radiation, unlike CT. US which can detect advanced colon tumors, obstructive lesions, and intestinal tract changes, done prior to CF allows the procedure to be done in a manner.

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