EVALUATION OF COLORECTAL POLYPS BY BLI MAGNIFYING ENDOSCOPY WITH BASIC CLASSIFICATION

Nguyễn Thanh Tùng1,, Đào Việt Hằng1,2,3
1 Hanoi Medical University
2 Hanoi Medical University Hospital
3 The Institute of Gastroenterology and Hepatology

Main Article Content

Abstract

Background: Colorectal polyp is a common disease and has risks of malignancy progression. The endoscopic histopathological prediction of polyps helps to provide appropriate treatment.BASIC classification based on evaluation of surface and vascular structures using magnifying endoscopy with blue laser imaging (BLI) was proposed to predict histopathological outcome. Objectives: To evaluate the diagnostic performance of magnifying endoscopy with BLI and the BASIC classification for colorectal polyps comparing to histopathology. Materials and methods: We analyzed 166 colorectal polyps examined with magnifying endoscopy with BLI. The polyps were classified by the BASIC classification and sent for histopathology for comparison. The study was conducted at the Institute of Gastroenterology and Hepatology from March 2021 to December 2021. Results: The percentage of hyperplastic polyp, adenomatous polyp, sessile serrated polyp, cancer in the study were 39.2%, 56.0%, 0.6%, and 4.2%,respectively. The sensitivity,specificity,positive predicted value, negative predicted value and accuracy of neoplastic polyp were 96.0%, 93.8%, 96.0%, 93.8% và 95.2%,respectively. Conclusion: Preliminary results shows that magnifying endoscopy with BLI and the BASIC classification is a reliable method to predict the histopathological results of colorectal polyps.

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