Abstract
PURPOSE: The purpose of this study is to establish a simple technique to evaluate anorectal motility and the dynamics of defecation. METHODS: Pressure fluctuations in the rectum and anal canal during 500 ml of saline infusion in the rectum and then a saline evacuation curve were recorded using manometer and uroflowmeter. RESULTS: This study consisted of 37 patients with a mean age of 49.6 years. All patients without problems with defecation showed periodic relaxation of the anal canal, which was synchronized with rectal contractions during saline infusion. The saline evacuation curves of these patients were characterized by short evacuation time and high-peak flow. Of the 13 patients with constipation, 9 showed no rectoanal synchronization and had segmental evacuation curves. The patients with incontinence tended to have poor ability for holding saline in the rectum, resulting in low-peaked evacuation curves. CONCLUSIONS: This simple and noninvasive technique for recording anorectal pressure fluctuations and dynamics of saline evacuation from the rectum enables quantitative and qualitative evaluation of the ability to defecate.
Similar content being viewed by others
References
Shafik A, Khalid A. Fecoflowmetry in defecation disorders. Pract Gastroenterol 1990;14:46–2.
Read NW, Haynes DC, Bartolo DC,et al. Use of anorectal manometry during rectal infusion of saline to investigate sphincter function in incontinent patients. Gastroenterology 1983;85:105–13.
Author information
Authors and Affiliations
Additional information
Supported by the Toyokichi Maeta Memorial Grant for Gastroenterology.
About this article
Cite this article
Kayaba, H., Kodama, K., Shirayama, K. et al. Evaluation of ability to defecate using saline evacuation from the rectum. Dis Colon Rectum 40 (Suppl 10), S96–S98 (1997). https://doi.org/10.1007/BF02062028
Issue Date:
DOI: https://doi.org/10.1007/BF02062028