Clinical and translational gastroenterology · 2025
International Validation of a Novel PEACE Scale to Improve the Quality of Upper Gastrointestinal Mucosal Inspection During Endoscopy.
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Romańczyk Marcin, Desai Madhav, Kamiński Michal F, Abe Seiichiro, Alkandari Asma A, Beyna Torsten, Bisschops Raf, Budzyń Krzysztof, Bugdol Monika, Grover Samir C, Gyawali C Prakash, Inoue Haruhiro, Iyer Prasad G, Messmann Helmut, Ragunath Krish, Saito Yutaka, Srinivasan Sachin, Teshima Christopher, Yadlapati Rena, Hassan Cesare, Sharma Prateek
Аннотация
INTRODUCTION: The performance of a high quality esophagogastroduodenoscopy (EGD) is dependent on the mucosal cleanliness. Recently, the Polprep: Effective Assessment of Cleanliness in EGD (PEACE) scale was created to assess the degree of mucosal cleanliness during EGD. The aim of this study was to validate this scoring system in a cohort of international endoscopists.
METHODS: In total, 39 EGD videos, with different degrees of mucosal cleanliness were retrieved from a previously conducted prospective trial. All experts rated the cleanliness of the mucosa on each video using the PEACE scale. To evaluate agreement of all scores (0-3), intraclass correlation coefficient 2.1 was used. The agreement on adequate (scores 2 and 3) and inadequate (scores 0 and 1) cleanliness was assessed using kappa values.
RESULTS: Videos evaluating esophagus, stomach, and duodenum cleanliness were reviewed by 16 endoscopists. The PEACE scores demonstrated good agreement (intraclass correlation coefficient 0.82, 95% CI 0.75-0.89), especially for esophagus (0.84; 95% CI 0.71-0.95) and stomach (0.81; 95% CI 0.69-0.91), while agreement was moderate for the duodenum (0.69; 95% CI 0.51-0.87). The agreement was similar between Eastern (0.86; 95% CI 0.79-0.92) and Western experts (0.80; 95% CI 0.72-0.88). Similarly, agreement regarding adequate cleanliness was comparable between Eastern (0.70; 95% CI 0.55-0.85) and Western (0.74; 95% CI 0.64-0.84) endoscopists being overall 0.75 (95% CI 0.65-0.85).
DISCUSSION: The PEACE scoring system is a simple and reliable scale to assess the cleanliness during EGD. The score is now validated among international experts with high concordance, justifying its use in clinical practice.
METHODS: In total, 39 EGD videos, with different degrees of mucosal cleanliness were retrieved from a previously conducted prospective trial. All experts rated the cleanliness of the mucosa on each video using the PEACE scale. To evaluate agreement of all scores (0-3), intraclass correlation coefficient 2.1 was used. The agreement on adequate (scores 2 and 3) and inadequate (scores 0 and 1) cleanliness was assessed using kappa values.
RESULTS: Videos evaluating esophagus, stomach, and duodenum cleanliness were reviewed by 16 endoscopists. The PEACE scores demonstrated good agreement (intraclass correlation coefficient 0.82, 95% CI 0.75-0.89), especially for esophagus (0.84; 95% CI 0.71-0.95) and stomach (0.81; 95% CI 0.69-0.91), while agreement was moderate for the duodenum (0.69; 95% CI 0.51-0.87). The agreement was similar between Eastern (0.86; 95% CI 0.79-0.92) and Western experts (0.80; 95% CI 0.72-0.88). Similarly, agreement regarding adequate cleanliness was comparable between Eastern (0.70; 95% CI 0.55-0.85) and Western (0.74; 95% CI 0.64-0.84) endoscopists being overall 0.75 (95% CI 0.65-0.85).
DISCUSSION: The PEACE scoring system is a simple and reliable scale to assess the cleanliness during EGD. The score is now validated among international experts with high concordance, justifying its use in clinical practice.