Helicobacter Pylori Infection Clinical Trial
Official title:
Comparison of the Histological Quality of Endoscopic Biopsy Samples Obtained With Novel Multiple-bite Forceps Versus Conventional Double Bite Forceps
Biopsies are routinely taken during endoscopy and colonoscopy in order to facilitate histological analysis of various disease processes. The current practice of obtaining biopsies involves taking a maximum of two biopsies at a single time (ie. with a single pass). When investigating certain diseases, such as celiac disease, there is a need to obtain several biopsies (sometimes greater than 6) and the current practice of taking one to two biopsies at a time can lengthen endoscopy time. This study investigates a new approved multiple bite forceps that has the ability to retrieve six biopsies during a single pass which could reduce endoscopy time and improve diagnostic yield. This study will assess the histological quality of multiple biopsies when taken with the multiple bite forceps compared to the standard double bite forceps. This multiple bite forcep is approved for clinical use in Canada.
This will be a prospective randomized noninferiority study that will take place at Hotel Dieu Hospital. Based on a statistical power calculation, a total of 100 patients are required for enrollment. Enrollment will take place at the outpatient endoscopy suite at Hotel Dieu Hospital. Patients will be reviewed for eligibility as per the inclusion and exclusion criteria and those deemed eligible will consent for participation. Members of the research time will attempt to contact patients two to three weeks prior to their schedule endoscopy for consent. If unable to reach them after two attempts, they will then be consented for their participation during the day of their endoscopy at Hotel Dieu Hospital. Once enrolled in the study, each patient will be randomly allocated to one of two groups (group A and group B) using a computer randomizer generator. The aim is to have equal numbers in both groups (ie. 50 patients in each group). Participants in group A will have their biopsies during endoscopy taken with the conventional double bite forceps. On the other hand, participants in group B will have their biopsies taken with the multiple bite forceps. Each patient in both groups will have at least six biopsies taken. In both groups, biopsies will be taken for assessment of H. pylori and/or celiac disease. Patients recruited will be those who would require these biopsies to be taken regardless of this study. The samples will be sent to pathology where two independent expert gastrointestinal pathologists will examine the slides and grade each specimen using a five-point scale. The overall histological score given to samples will then be assessed to compare those retrieved with the multiple bite forceps and conventional forceps. ;
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