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THE VALUE OF JNET CLASSIFICATION IN PREDICTING OF COLORETAL POLYP HISTOLOGY AT TAM ANH GENERAL HOSPITAL IN HO CHI MINH CITY
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Abstract
Background: Accurately predicting the histopathology of colorectal polyps is helpful in deciding the treatment attitude of the endoscopists. Many studies around the world have proven the JNET Classification with NBI-M endoscopy is effective but has not been widely applied in Vietnam due to the need to be equipped with an NBI-M system and doctors trained in JNET classification, so the data reported in Vietnam Nam is still modest. Aims: To determine the histopathological predictive value of JNET classification with narrow band imaging (NBI), dual focus magnifiying (M-DF) endoscopy. Materials and methods: Observational, cross-sectional study was conducted, involving a sample of 401 patients with 456 polyps from November 1, 2023 to January 31, 2024 at Tam Anh Hospital, Ho Chi Minh City. The Olympus EVIX X1 CV-1500 system having NBI (Narrow Banding Imaging) with dual focus magnification mode and CF-EZ1500DL Colonoscope were used to evaluate polyps according to the JNET classification. Data were analyzed by SPSS 25.0 software. Results: 87% of polyps were detected at age ≥40, of which the age of 40-50 accounted for 21,9%. The rate of JNET 1, JNET 2A, JNET 2B, JNET 3 were 12,1%; 85,5%; 1,5%; 0,9% respectively. The sensitivity and specificity of JNET classification were 80% and 98,3% for JNET 1; 98,1% and 75,6% for JNET 2A; 45,5% and 99,5% for JNET 2B; 66,7% và 100% for JNET 3. The specificity in distinguishing malignant neoplasia (including high-grade adenomas and invasive cancers) and benign neoplasia (including low-grade adenomas); in distinguishing deeply invasive cancer from the remaining types of neoplasia were all 100%. Conclusions: NBI based JNET classification with Dual-focal magnification has high value in predicting the histology of colorectal polyps, thereby, it could help the endoscopists to have the right attitude for management of the polyps without waiting for the histology results, saving the costs, time, effort, and limiting the unnecessary surgeries. Therefore, the JNET classification should be widely and routinely used in Vietnam.
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Keywords
: colorectal polyps, JNET classification, narrow-band endoscopy with Dual-focus magnification.
References
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