| [ Summary ] |
We report on sedative-risk free colonoscopy termed, "WATER NAVIGATION COLONOSCOPY". We also report on the bowel motility of healthy subjects being suppressed with antispasmodics. We also report on the persistent abnormal bowel motility with irritable bowel syndrome (IBS) observed in response to the psychological stress of "colonoscopies" (NGM2009). We also found there are some IBS patients without abnormal bowel motility and reported that there are 2 types of IBS resulting from colonoscopy, the "Abnormal bowel motility type" and the "Abnormal bowel morphology type" (DDW2010). CT colonography may not only be used to evaluate neoplasms but also to produce a three dimensional picture of the colon. Abnormal colon morphology such as mesocolon descendens and sigmoid colon malrotation was frequently observed, i. e, 91.0 % of IBS cases. IBS patients with abnormal colon morphology only did not experience stress related to the symptoms. Colon caliber change (X 2) was significantly frequently observed with IBS-D 74 % and-M 71 % being greater than-C 30 %. Abnormal colon morphology is very common in Japanese IBS patients, and seems to cause disorders related to defecation. Colon caliber change is often observed in IBS patients with diarrhea. These seem to be the same mechanisms observed in diarrhea associated with colonic stenosis such as colon cancer or sigmoid volvulus. |