Practice Patterns, Predictors of Use and Clinical Efficacy of Endoscopic Clips for Prevention of Delayed Post-polypectomy Bleeding

dc.contributor.advisorHeitman, Steven
dc.contributor.authorForbes, Nauzer
dc.contributor.committeememberHilsden, Robert
dc.contributor.committeememberKaplan, Gilaad
dc.contributor.committeememberJames, Matthew
dc.date2018-02
dc.date.accessioned2018-01-08T19:04:34Z
dc.date.available2018-01-08T19:04:34Z
dc.date.issued2017-12-12
dc.description.abstractColonoscopy reduces colorectal cancer through the removal of pre-cancerous polyps, which exposes patients to potential adverse events. Endoscopic clips are used by practitioners to prevent delayed post-polypectomy bleeding. This thesis reports the results of two studies performed with the aim of evaluating the practice patterns and clinical efficacy of prophylactic clipping during polypectomy. A meta-analysis of randomized trials showed that prophylactic clipping is not efficacious in preventing delayed bleeding during routine polypectomy, especially among polyps < 10 mm. A large retrospective cohort study then described clinical parameters associated with clip usage. We demonstrated that use of clips increased over time in a high-volume outpatient endoscopy unit. Furthermore, a high degree of variability in clipping patterns existed between endoscopists, including among polyps < 10 mm, where no efficacy exists. Taken together, these results reveal an urgent need for effective knowledge translation to eliminate this ineffective and costly practice during routine polypectomy.en_US
dc.identifier.citationForbes, N. (2017). Practice Patterns, Predictors of Use and Clinical Efficacy of Endoscopic Clips for Prevention of Delayed Post-polypectomy Bleeding (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/5241
dc.identifier.urihttp://hdl.handle.net/1880/106243
dc.language.isoenen_US
dc.publisher.facultyCumming School of Medicineen_US
dc.publisher.institutionUniversity of Calgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.subject.classificationMedicine and Surgeryen_US
dc.titlePractice Patterns, Predictors of Use and Clinical Efficacy of Endoscopic Clips for Prevention of Delayed Post-polypectomy Bleedingen_US
dc.typemaster thesisen_US
thesis.degree.disciplineMedicine – Community Health Sciencesen_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameMaster of Science (MSc)en_US
ucalgary.item.requestcopytrue
ucalgary.thesis.checklistI confirm that I have submitted all of the required forms to Faculty of Graduate Studies. (See <a href="http://grad.ucalgary.ca/current/thesis/ethesis">http://grad.ucalgary.ca/current/thesis/ethesis</a> for more details)en_US
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