The Mechanisms Responsible for the Urge to Defecate

Roth, Harold P.; Fein, Sherwood B.; Sturman, Martin F.

doi:10.1016/s0016-5085(57)80067-5

Cited by 10 publications

(2 citation statements)

References 6 publications

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“…Bockus gastroenterology by Roth et al ( 9 ) described distention of the descending colon of producing a sensation of gas and bloating, whereas distention of the rectum results in a feeling of urgency. ( 10 ) This description suggests that if the sigmoid colon diameter is large, patients feel the urge to defecate, but if the descending colon diameter is large, patients experience an unnecessary urge to defecate, leading to patients experiencing unsatisfactory defecation easily.…”

Section: Discussionmentioning

confidence: 99%

Assessment of colonic contents in patients with chronic constipation using MRI

Inoh

Kanoshima

Ohkuma

et al. 2018

J. Clin. Biochem. Nutr.

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Although chronic constipation is common, colonic functional evaluating tests are uncommon. This study examines whether chronic constipation and gastrointestinal symptoms are correlated with the lateral diameter of the colon measured from MRI images. We included chronic constipation patients in a prospective, cross-sectional study using MRI at three centers. We divided 3D MRI colorectal images into 6 segments using with specified sequences and selected the maximum luminal diameter from each segment. We used the GSRS questionnaire to evaluate gastrointestinal symptoms. We evaluated the correlation between luminal diameters and GSRS scores. We found the following positive correlations: descending colon and unsatisfactory defecation symptoms; sigmoid colon and diarrhea; and rectum and constipation. The sum and ratio of the ascending and sigmoid colon diameters correlated with nausea and diarrhea. The sum of the transvers to the sigmoid colon diameter also correlated with nausea and diarrhea. The sum of all segment diameters correlated with nausea and constipation. In conclusion, we showed cross-sectional study of colonic MRI correlate with gastrointestinal symptoms. MRI might be useful for colonic motility evaluations to determine appropriate constipation treatments (Clinical trial registry number UMIN 000021274).

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Section: Discussionmentioning

confidence: 99%

Assessment of colonic contents in patients with chronic constipation using MRI

Inoh

Kanoshima

Ohkuma

et al. 2018

J. Clin. Biochem. Nutr.

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“…It is sensitive to pressure (distension), while crushing or burning of the rectal mucosa does not elicit pain (2). Distension in the sigmoid produces gas pain or intestinal colic, and distension in the rectum produces a sensation like the sensation produced by flatus or feces (3,4). The sensation in the rectum that constitutes a normal call for defecation is also due to distension, and is caused by sudden entry of feces into the rectum (3).…”

Section: Division Of Ambulatory and Community Pediatrics Department O...mentioning

confidence: 99%

Sensitivity of the Sigmoid Colon and Rectum in Children Treated for Chronic Constipation

Loening‐Baucke

1984

J. pediatr. gastroenterol. nutr.

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SummarySensations in the sigmoid and rectum and the response of the anal canal to balloon distension were measured with a latex balloon and pressure transducer in 15 chronically constipated and 15 healthy control children. The constipated children received milk of magnesia and bowel training. Thirteen constipated children were restudied 7–12 months later and 11 were restudied 3 years later. Although thresholds of transient sensation and of the rectosphincteric reflex were not different in constipated and control children, the threshold of fullness, the critical volume, and the volume for constant relaxation were significantly higher in constipated than in control children (p < 0.05), and remained higher 1 year and 3 years later, even in the children who recovered. The initial data support the concept of a sigmoid and rectum so enlarged that a normal fecal bolus may not cause a sensation of fullness or a sensory stimulus for defecation. Despite improvement in clinical manifestations and normal rectal size, the abnormalities in sensitivity of the sigmoid and rectum persisted in five of eight recovered children. This may explain why these children are so vulnerable to recurrence of constipation and fecal soiling.

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Storage and Propulsion along the Large Intestine

Devroede

1983

Colon

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The Mechanisms Responsible for the Urge to Defecate

Cited by 10 publications

References 6 publications

Assessment of colonic contents in patients with chronic constipation using MRI

Assessment of colonic contents in patients with chronic constipation using MRI

Sensitivity of the Sigmoid Colon and Rectum in Children Treated for Chronic Constipation

Storage and Propulsion along the Large Intestine

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