Increasing Serrated Polyp Detection With a Brief Awareness Training

Study Overview
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Brief Summary
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In this non-randomized controlled trial, a semi-random group of Dutch endoscopist receive an oral training about the significance of serrated polyps. The primary aim of this training is to improve the endoscopist's awareness of the significance of serrated polyps, ultimately leading to increased detection. In addition, a random group of endoscopists that will not receive this training will be used as a reference group. Data will be collected as part of routine care within the Nationwide Dutch Bowel cancer screening program. The serrated polyp detectionrate of each endoscopist will be extracted from anonymized data that will be prospectively collected as part of routine care within the Dutch Nationwide bowel cancer screening program. Data will be anonymized and provided by Rijksinstituut voor Volksgezondheid en Milieu (RIVM) and ScreenIT.

Official Title
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The Influence of a Short Training in the Detection Rate of Proximal Serrated Polyps in an Asymptomatic Patient Population

Conditions
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Serrated Polyp, Colorectal Neoplasms

Intervention / Treatment
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* Other: Educational intervention (oral presentation)


Participation Criteria
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Eligibility Criteria
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Inclusion criteria: - Endoscopists accredited to perform colonoscopies within the Dutch Nationwide colorectal cancer screening program Exclusion criteria: - Absent during both training sessions while employed in one of the trained hospitals
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Health Services Research
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: This is a non-randomized controlled trial with two arms. The intervention-arm consists of all endoscopists employed by 9 semi-randomly chosen Dutch hospitals hospitals who receive an educational training. The control-arm consists of a specific number of randomly chosen endoscopists.
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Intervention-arm<br>All endoscopists employed by 9 semi-randomly chosen hospitals in the Netherlands will be exposed to an educational intervention (oral presentation): an oral awareness training which will be delivered twice, first in 2014 and then in 2016/2017. In total 38 endoscopists are included from these 9 hospitals. | Other: Educational intervention (oral presentation)<br>* A brief oral presentation (30-45 minutes) which focused on making endoscopists aware of the significance and characteristics of serrated polyps.<br>|
| No Intervention: Control arm<br>A random set of 100 endoscopists will be selected ass a reference group. These 100 endoscopists were unaware of the present study, and were thus blinded for their allocation. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Proximal serrated polyp detection rate (PSPDR) | Rate/proportion of an endoscopist's colonoscopies with one or more serrated polyps proximal to or in splenic flexure. | Up to five years (between 2014 and 2018) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Adenoma detection rate (ADR) | Rate/proportion of an endoscopist's colonoscopies with one or more adenomas | Up to five years (between 2014 and 2018) |