Bowel preparation for colonoscopy: is diet restriction necessary?
| dc.contributor.advisor | Goldberg, Paul | |
| dc.contributor.advisor | Chu, Kathryn | |
| dc.contributor.author | Chang, Hung-Jou | |
| dc.date.accessioned | 2021-08-10T12:30:40Z | |
| dc.date.available | 2021-08-10T12:30:40Z | |
| dc.date.issued | 2021 | |
| dc.date.updated | 2021-08-02T11:33:45Z | |
| dc.description.abstract | Background: Bowel preparation is essential for quality colonoscopy. Although most bowel preparation regimens recommend dietary restriction for 24 to 48 hours before the procedure, the evidence for this is poor. Objectives: To establish whether dietary restriction during bowel preparation improves the quality of bowel preparation. Methods: A prospective single blind, randomised controlled pilot study. The dietary restriction (DR) group was instructed not to ingest high fibre foods for 48 hours prior to the use of a polyethylene glycol (PEG) bowel preparation. The non-dietary restriction (NDR) group was not given any dietary modification, but received instructions for the use of the PEG-based preparation solution. On the day of colonoscopy, the quality of the bowel effluent was assessed, and additional preparation given as necessary. The primary endpoint was quality of bowel cleansing using the Harefield Cleansing Scale during colonoscopy. The secondary endpoint was the need for additional bowel preparation and quantity of additional bowel preparation given prior to endoscopy. Data were analysed on an intention to treat basis. Results: Twenty-three participants were randomised to the intervention group and thirty-four to the control group. Patient demographics were similar in both groups. Dietary restriction did not influence the success rate of bowel preparation: 97% successful bowel preparation in the DR group, vs 91% successful bowel preparation in the NDR group (p=0.559). Additional bowel preparation requirement were similar in both groups: 35% in DR group vs 39% in NDR group (p=0.768). Mean amount of additional bowel preparation required was similar: 560 ml in the DR group vs 460 ml in the NDR group (p=0.633). Conclusion: The quality of bowel preparation was comparable in patients with and without dietary restrictions prior to colonoscopy. Non-restrictive diets prior to bowel preparation should be considered to increase compliance. The sample size of this pilot study prohibited definite statistical conclusions but demonstrated this to be a reasonable methodology for a larger study. | |
| dc.identifier.apacitation | Chang, H. (2021). <i>Bowel preparation for colonoscopy: is diet restriction necessary?</i>. (). ,Faculty of Health Sciences ,Division of General Surgery. Retrieved from http://hdl.handle.net/11427/33728 | en_ZA |
| dc.identifier.chicagocitation | Chang, Hung-Jou. <i>"Bowel preparation for colonoscopy: is diet restriction necessary?."</i> ., ,Faculty of Health Sciences ,Division of General Surgery, 2021. http://hdl.handle.net/11427/33728 | en_ZA |
| dc.identifier.citation | Chang, H. 2021. Bowel preparation for colonoscopy: is diet restriction necessary?. . ,Faculty of Health Sciences ,Division of General Surgery. http://hdl.handle.net/11427/33728 | en_ZA |
| dc.identifier.ris | TY - Master Thesis AU - Chang, Hung-Jou AB - Background: Bowel preparation is essential for quality colonoscopy. Although most bowel preparation regimens recommend dietary restriction for 24 to 48 hours before the procedure, the evidence for this is poor. Objectives: To establish whether dietary restriction during bowel preparation improves the quality of bowel preparation. Methods: A prospective single blind, randomised controlled pilot study. The dietary restriction (DR) group was instructed not to ingest high fibre foods for 48 hours prior to the use of a polyethylene glycol (PEG) bowel preparation. The non-dietary restriction (NDR) group was not given any dietary modification, but received instructions for the use of the PEG-based preparation solution. On the day of colonoscopy, the quality of the bowel effluent was assessed, and additional preparation given as necessary. The primary endpoint was quality of bowel cleansing using the Harefield Cleansing Scale during colonoscopy. The secondary endpoint was the need for additional bowel preparation and quantity of additional bowel preparation given prior to endoscopy. Data were analysed on an intention to treat basis. Results: Twenty-three participants were randomised to the intervention group and thirty-four to the control group. Patient demographics were similar in both groups. Dietary restriction did not influence the success rate of bowel preparation: 97% successful bowel preparation in the DR group, vs 91% successful bowel preparation in the NDR group (p=0.559). Additional bowel preparation requirement were similar in both groups: 35% in DR group vs 39% in NDR group (p=0.768). Mean amount of additional bowel preparation required was similar: 560 ml in the DR group vs 460 ml in the NDR group (p=0.633). Conclusion: The quality of bowel preparation was comparable in patients with and without dietary restrictions prior to colonoscopy. Non-restrictive diets prior to bowel preparation should be considered to increase compliance. The sample size of this pilot study prohibited definite statistical conclusions but demonstrated this to be a reasonable methodology for a larger study. DA - 2021_ DB - OpenUCT DP - University of Cape Town KW - bowel preparation KW - colonoscopy KW - regular diet KW - non-dietary restriction LK - https://open.uct.ac.za PY - 2021 T1 - Bowel preparation for colonoscopy: is diet restriction necessary? TI - Bowel preparation for colonoscopy: is diet restriction necessary? UR - http://hdl.handle.net/11427/33728 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/33728 | |
| dc.identifier.vancouvercitation | Chang H. Bowel preparation for colonoscopy: is diet restriction necessary?. []. ,Faculty of Health Sciences ,Division of General Surgery, 2021 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/33728 | en_ZA |
| dc.language.rfc3066 | eng | |
| dc.publisher.department | Division of General Surgery | |
| dc.publisher.faculty | Faculty of Health Sciences | |
| dc.subject | bowel preparation | |
| dc.subject | colonoscopy | |
| dc.subject | regular diet | |
| dc.subject | non-dietary restriction | |
| dc.title | Bowel preparation for colonoscopy: is diet restriction necessary? | |
| dc.type | Master Thesis | |
| dc.type.qualificationlevel | Masters | |
| dc.type.qualificationlevel | MMed |