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Scoring system assessing mucosal visibility of upper gastrointestinal tract: The POLPREP scale
Marcin Romańczyk1,2, Bartosz Ostrowski1, Katarzyna Kozłowska-Petriczko3
1Department of Gastroenterology and Hepatology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland.
Background And Aim:
The proper visibility of mucosa during esophagogastroduodenoscopy (EGD) is crucial for the detection of early upper gastrointestinal tract lesions. In contrast to colonoscopy, no validated scoring system for the assessment of upper gastrointestinal mucosal cleanliness has been developed so far. The aim of the study was to create and validate standardized grading system (POLPREP) to assess the mucosal cleanliness during EGD.
Methods:
To assess the visibility of mucosa during EGD, 4-point scale was developed (0-3). Twelve operators assessed 18 images of esophagus, stomach, and duodenum twice (in 2 weeks interval). In validation round, the images and endoscopy reports of 443 EGDs performed in six centers were assessed.
Results:
The inter-observer accordance of POLPREP was 0.8 (intra-class correlation coefficient; 0.79 consultants, 0.85 trainees). The intra-observer repeatability was 0.64 (Fleiss kappa value; 0.64 consultants, 0.64 trainees). The lesions detection rate was significantly higher in clean (scores 2 and 3; 19.7%) than in "unclean" segments (score 1; 7.7%, P = 0.049). Score 3 was associated with over three-fold higher lesion detection than score 1 (odds ratio 3.2, 95% confidence interval 1.1-9; P = 0.03).
Conclusions:
The proposed POLPREP scale allows for unified assessment of upper gastrointestinal tract mucosal cleanliness. The higher cleanliness scores are related with greater upper gastrointestinal pathologies detection.
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