Influence of Rectal Decompression on Abdominal Symptoms and Anorectal Physiology following Colonoscopy in Healthy Adults

Background. Postcolonoscopy abdominal discomfort and bloating are common. The aim of this study was to evaluate whether rectal decompression improved distension-induced abdominal symptoms and influenced anorectal physiology. Methods. In 15 healthy subjects, rectal distension was achieved by direct a...

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Main Authors: Chih-Hsun Yi, Tso-Tsai Liu, Wei-Yi Lei, Jui-Sheng Hung, Chien-Lin Chen
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Gastroenterology Research and Practice
Online Access:http://dx.doi.org/10.1155/2016/4101248
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author Chih-Hsun Yi
Tso-Tsai Liu
Wei-Yi Lei
Jui-Sheng Hung
Chien-Lin Chen
author_facet Chih-Hsun Yi
Tso-Tsai Liu
Wei-Yi Lei
Jui-Sheng Hung
Chien-Lin Chen
author_sort Chih-Hsun Yi
collection DOAJ
description Background. Postcolonoscopy abdominal discomfort and bloating are common. The aim of this study was to evaluate whether rectal decompression improved distension-induced abdominal symptoms and influenced anorectal physiology. Methods. In 15 healthy subjects, rectal distension was achieved by direct air inflation into the rectum by colonoscopy. Placement of rectal and sham tube was then performed in each subject on a separate occasion. The anorectal parameters and distension-induced abdominal symptoms were recorded. Results. Anorectal parameters were similar between placements of rectal tube and sham tube except for greater rectal compliance with rectal tube than with sham tube (P<0.05). Abdominal pain and bloating were significantly reduced by rectal tube and sham tube at 1 minute (both P<0.05) and 3 minutes (both P<0.05). After placement of rectal tube, abdominal pain at 3 minutes correlated positively with first sensation (r=0.53, P=0.04), and bloating at 3 minutes also correlated positively with urge sensation (r=0.55, P=0.03). Conclusions. Rectal decompression with either rectal or sham tube improved distension-induced abdominal symptoms. Our study indicates that the mechanisms that improved abdominal symptoms by rectal decompression might be mediated by a central pathway instead of a peripheral mechanism.
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series Gastroenterology Research and Practice
spelling doaj-art-5c0efd47b788477ab21e1283ad159be02025-02-03T05:57:12ZengWileyGastroenterology Research and Practice1687-61211687-630X2016-01-01201610.1155/2016/41012484101248Influence of Rectal Decompression on Abdominal Symptoms and Anorectal Physiology following Colonoscopy in Healthy AdultsChih-Hsun Yi0Tso-Tsai Liu1Wei-Yi Lei2Jui-Sheng Hung3Chien-Lin Chen4Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien 97002, TaiwanDepartment of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien 97002, TaiwanDepartment of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien 97002, TaiwanDepartment of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien 97002, TaiwanDepartment of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien 97002, TaiwanBackground. Postcolonoscopy abdominal discomfort and bloating are common. The aim of this study was to evaluate whether rectal decompression improved distension-induced abdominal symptoms and influenced anorectal physiology. Methods. In 15 healthy subjects, rectal distension was achieved by direct air inflation into the rectum by colonoscopy. Placement of rectal and sham tube was then performed in each subject on a separate occasion. The anorectal parameters and distension-induced abdominal symptoms were recorded. Results. Anorectal parameters were similar between placements of rectal tube and sham tube except for greater rectal compliance with rectal tube than with sham tube (P<0.05). Abdominal pain and bloating were significantly reduced by rectal tube and sham tube at 1 minute (both P<0.05) and 3 minutes (both P<0.05). After placement of rectal tube, abdominal pain at 3 minutes correlated positively with first sensation (r=0.53, P=0.04), and bloating at 3 minutes also correlated positively with urge sensation (r=0.55, P=0.03). Conclusions. Rectal decompression with either rectal or sham tube improved distension-induced abdominal symptoms. Our study indicates that the mechanisms that improved abdominal symptoms by rectal decompression might be mediated by a central pathway instead of a peripheral mechanism.http://dx.doi.org/10.1155/2016/4101248
spellingShingle Chih-Hsun Yi
Tso-Tsai Liu
Wei-Yi Lei
Jui-Sheng Hung
Chien-Lin Chen
Influence of Rectal Decompression on Abdominal Symptoms and Anorectal Physiology following Colonoscopy in Healthy Adults
Gastroenterology Research and Practice
title Influence of Rectal Decompression on Abdominal Symptoms and Anorectal Physiology following Colonoscopy in Healthy Adults
title_full Influence of Rectal Decompression on Abdominal Symptoms and Anorectal Physiology following Colonoscopy in Healthy Adults
title_fullStr Influence of Rectal Decompression on Abdominal Symptoms and Anorectal Physiology following Colonoscopy in Healthy Adults
title_full_unstemmed Influence of Rectal Decompression on Abdominal Symptoms and Anorectal Physiology following Colonoscopy in Healthy Adults
title_short Influence of Rectal Decompression on Abdominal Symptoms and Anorectal Physiology following Colonoscopy in Healthy Adults
title_sort influence of rectal decompression on abdominal symptoms and anorectal physiology following colonoscopy in healthy adults
url http://dx.doi.org/10.1155/2016/4101248
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