Improve the Comfort, Safety and Quality of Upper Endoscopy by a Modified Fasting Protocol

Improve the Comfort, Safety and Quality of Upper Endoscopy by a Modified Fasting Protocol：a Double-center, Prospective, Controlled Study

This double-center, prospective, interventional study aims to include 200 gastroscopic procedures and investigate the relationship between fasting time and feeling of subjects. The subjects will all receive examination between 10:30 to 11:30am. In the control group, the subjects are required to start the fast at 10:00pm the day before examination and can not drink water after 8:00am on the day of examination. In the test group, the subjects are required to have customized rice congee before 6:30am on the examination day and can not drink water after 8:00am. All subjects complete questionnaire which include discomfort and willingness to accept the same fasting regimen.

Inclusion Criteria:

• No history of benign and malignant tumors (including carcinoma and adenoma) of upper GI (including esophagus, stomach and duodenum)

Exclusion Criteria:

• Subjects that cannot stand the gastroscopy procedure or cannot cooperate with endoscopists
• Emergency endoscopy and therapeutic endoscopy
• Subjects with history of esophageal or stomach surgery or endoscopic surgery
• Pregnant
• Subjects that refuse to cooperate with data collection or sign the informed consent