The effect of photo-documentation of the ampulla on neoplasm detection rate during esophagogastroduodenoscopy

Background A few studies have investigated quality indicators of esophagogastroduodenoscopy (EGD) for identifying upper gastrointestinal (GI) malignancy. The current study aimed to evaluate whether the rate of ampulla photo-documentation could be associated with the detection of upper GI neoplasms. Methods We used data from 111962 asymptomatic patients who underwent EGD performed by 14 endoscopists at a health promotion center. The rate of ampulla photo-documentation was calculated by reviewing EGD photos archived during each endoscopist's first year of working at the center. The detection of neoplasms during a 7-year period was investigated. We examined the association between the rate of ampulla photo-documentation and the rate of neoplasm detection. Results The mean rate of ampulla photo-documentation was 49.0% (range 13.7%-78.1%) during endoscopists' first year of working at the center. Endoscopists' rates of ampulla photo-documentation significantly correlated with the detection of total neoplasms (R ² =0.57, P =0.03) and small neoplasms (R ² =0.58, P =0.03). There was a significant difference in the detection rates of upper GI neoplasms between high (n=7) and low (n=7) ampulla observers (odds ratio [OR] 1.31, 95% confidence interval [CI] 1.03-1.68; P =0.03). The ampulla photo-documentation rate of each endoscopist significantly correlated with the examination time for a normal EGD (R ² =0.55; P =0.04). In multivariate analysis, high ampulla photo-documentation rate was a predictor of neoplasm detection (OR 1.33, 95%CI 1.03-1.70). Conclusions The ampulla photo-documentation rate was significantly associated with the detection rate for both total and small upper GI neoplasms. Ampulla photo-documentation should be considered as a quality indicator of EGD.