VALIDATION OF AN ONLINE LEARNING TOOL FOR OPTICAL DIAGNOSIS OF DIMINUTIVE COLORECTAL POLYPS

MB Balén; NF Fernández; L de Castro; B Romero; AR de Jesus; JD de Castro; JM Herrero; F Baiocchi; M Puga; L Rivas; B Peñas; ER de Santiago; M Aicart; C Senosiain; PD Redondo; H Nuñez; M de Benito; FJG Alonso; B Dobarro; DR Remedios; N Pin; S Vazquez; L Cid; YP Garcia; V Hernandez; P Estevez; A Martinez; S Lopez; M Sierra; S Parejo; A Sanahuja; MP Ballester; M Bañuls; P Vazquez; G Pacheco; G Cordon; S Bejar; MF de la Varga; HADO Study Group

doi:10.1055/s-0040-1704421

Endoscopy, Inhaltsverzeichnis

Endoscopy 2020; 52(S 01): S136-S137
DOI: 10.1055/s-0040-1704421

ESGE Days 2020 ePoster Podium presentations

Polyp forensics: Colon advanced imaging 1 09:30 – 10:00 Thursday, April 23, 2020 ePoster Podium 8

VALIDATION OF AN ONLINE LEARNING TOOL FOR OPTICAL DIAGNOSIS OF DIMINUTIVE COLORECTAL POLYPS

MB Balén

¹Hospital Universitari i Politècnic La Fe, Gastrointestinal Endoscopy Unit, Valencia, Spain

²La Fe Health Research Institute, Gastrointestinal Endoscopy Research Group, Valencia, Spain

,

NF Fernández

³CHU Vigo, Gastroenterology, Vigo, Spain

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L de Castro

³CHU Vigo, Gastroenterology, Vigo, Spain

,

B Romero

³CHU Vigo, Gastroenterology, Vigo, Spain

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AR de Jesus

³CHU Vigo, Gastroenterology, Vigo, Spain

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JD de Castro

⁴CHU Ourense, Gastroenterology, Ourense, Spain

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JM Herrero

⁴CHU Ourense, Gastroenterology, Ourense, Spain

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F Baiocchi

⁴CHU Ourense, Gastroenterology, Ourense, Spain

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M Puga

⁴CHU Ourense, Gastroenterology, Ourense, Spain

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L Rivas

⁴CHU Ourense, Gastroenterology, Ourense, Spain

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B Peñas

⁵Ramon y Cajal Hospital, Gastroenterology, Madrid, Spain

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ER de Santiago

⁵Ramon y Cajal Hospital, Gastroenterology, Madrid, Spain

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M Aicart

⁵Ramon y Cajal Hospital, Gastroenterology, Madrid, Spain

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C Senosiain

⁵Ramon y Cajal Hospital, Gastroenterology, Madrid, Spain

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PD Redondo

⁶Rio Hortega Hospital, Gastroenterology, Valladolid, Spain

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H Nuñez

⁶Rio Hortega Hospital, Gastroenterology, Valladolid, Spain

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M de Benito

⁶Rio Hortega Hospital, Gastroenterology, Valladolid, Spain

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FJG Alonso

⁶Rio Hortega Hospital, Gastroenterology, Valladolid, Spain

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B Dobarro

⁴CHU Ourense, Gastroenterology, Ourense, Spain

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DR Remedios

⁴CHU Ourense, Gastroenterology, Ourense, Spain

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N Pin

⁴CHU Ourense, Gastroenterology, Ourense, Spain

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S Vazquez

³CHU Vigo, Gastroenterology, Vigo, Spain

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L Cid

³CHU Vigo, Gastroenterology, Vigo, Spain

,

YP Garcia

³CHU Vigo, Gastroenterology, Vigo, Spain

,

V Hernandez

³CHU Vigo, Gastroenterology, Vigo, Spain

,

P Estevez

³CHU Vigo, Gastroenterology, Vigo, Spain

,

A Martinez

³CHU Vigo, Gastroenterology, Vigo, Spain

,

S Lopez

⁵Ramon y Cajal Hospital, Gastroenterology, Madrid, Spain

,

M Sierra

⁵Ramon y Cajal Hospital, Gastroenterology, Madrid, Spain

,

S Parejo

⁵Ramon y Cajal Hospital, Gastroenterology, Madrid, Spain

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A Sanahuja

⁷Clinico Hospital, Gstroenterology, Valencia, Spain

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MP Ballester

⁸Clinico Hospital, Gastroenterology, Valencia, Spain

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M Bañuls

⁹Alzira Hospital, Gastroenterology, Alzira, Spain

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P Vazquez

⁹Alzira Hospital, Gastroenterology, Alzira, Spain

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G Pacheco

⁹Alzira Hospital, Gastroenterology, Alzira, Spain

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G Cordon

¹⁰Hospital Universitari i Politècnic La Fe, Gastroenterology, Valencia, Spain

,

S Bejar

¹⁰Hospital Universitari i Politècnic La Fe, Gastroenterology, Valencia, Spain

,

MF de la Varga

¹⁰Hospital Universitari i Politècnic La Fe, Gastroenterology, Valencia, Spain

,

HADO Study Group

› Institutsangaben

Abstract

Volltext

Aims 1) To assess the efficacy of an online self-learning tool for OD of diminutive colorectal polyps; 2) To describe in detail the learning process and possible variables related to learning efficacy.

Methods Online web page-based tool divided in five sections: 1) pre-tutorial test; 2) OD tutorial (NICE and WASP classifications); 3) First post-tutorial test; 4) Second post-tutorial test (different images); 5) Test with videos. The OD learning tool is prepared to gather information of each student individually as they pass through every phase. For each phase, number of right answers, percentage of high confidence diagnosis and number of attempts to pass the test were collected. Each phase was passed when there were at least 90% corrects answers. A multicenter study was designed to assess the performance of the OD tool on endoscopists of different experiences and background.

Results 36 endoscopists from 7 different Spanish centers entered the study [23 (63,9%) endoscopists; 5 (13,9%) gastroenterologists; 8 (22,2%) fellows].

Mean difference on correct answers between pre- and post-tutorial tests was 5 (0-10), and mean difference on the percentage of high-confidence diagnosis was 19,7 (-8 - 56).

Tab. 1
Overall results of the learning process through the online tool
	Pre-tutorial test	Post-tutorial test	1st pass of the 2nd post-tutorial test	1st pass of the video test
Correct answers, mean (range)	19.0 (13.0-25.0)	24.0 (23.0-25.0)	25.8 (20.0-30.0)	24.6 (18.0-29.0)
High-confidence diagnosis, %(range)	67.5 (32.0-92.0)	87.3 (64.0-100)	78.7 (53.0-100)	75.2 (37.0-97.0)
Students passed at 1st attempt, n (%)	-	24 (66.7)	18 (50.0)	6 (16.7)
Students needing 3 attempts to pass		2 (5.6)	1 (2.8)	7 (19.4)

Previous endoscopic experience had no influence on the efficacy of learning.

Conclusions 1) Our web-based online tool is efficient for OD learning of diminutive colorectal polyps; 2) A drop in the diagnostic efficacy occurs when moving from evaluating still pictures to videos. Therefore any learning tool has to include a video phase; 3) Efficacy results are homogeneous not depending on previous endoscopic experience.