Background

A standardized operation procedure for white light gastroscopy (WLG) is not available in China. We aimed to establish a standardized procedure of white light gastroscopy for patient screening to verify its efficacy and feasibility in clinical practice.

Methods

We applied the standardized procedure for WLG to outpatients at 9 tertiary hospitals in Beijing. All clinical information and data from the operation procedure were recorded.

Results

We established a standardized operation procedure for WLG. A total of 1051 patients were enrolled in the baseline survey stage between March 2014 and December 2015. A total of 2156 patients were enrolled in the WLG standardized operation stage from January 2016 to June 2017. The median durations of the standardized procedure group were significantly longer than those of the baseline group (prolonged 60.3 seconds on average, P = 0.003). The number of images obtained in the standardized procedure group was significantly greater compared with the baseline group (17 pictures more averagely, P < 0.001). The overall detection rate of gastric mucosal lesions in the standardized procedure group was significantly greater compared with the baseline group (52.5% vs. 38.4%, P < 0.01). Both the patient and endoscopist satisfaction scores in the standardized procedure group were significantly improved compared with those in the baseline group.

Conclusions

The standardized procedure for WLG can significantly improve the detection rate of gastric lesions and improve the satisfaction of patients and endoscopists despite prolonged duration. The standardized procedure for white light gastroscopy is effective and feasible in clinical practice using the currently available endoscopy equipment in China.

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