ObjectiveTo evaluate the effect of drinking of dimethicone solution combined with purified water before examination on improving endoscopic gastric mucosal visibility and echoendoscopic image clarity. MethodsA total of 120 patients diagnosed with gastric mucosal protrusion by endoscopy requiring further echoendoscopy were selected as the study subjects, and they were randomly divided into an observation group or a control group, with 60 cases in each group. The two groups were performing food- and water-deprivation for more than 6 h before the examination, the control group took 20 mL dimethicone solution 15~20 min before surgery, the observation group drank about 400 mL purified water 40~60 min before surgery, and 20 mL dimethicone solution 15~20 min before surgery. The endoscopic gastric mucosal visibility, echoendoscopic image clarity, incidence of adverse reactions and patients′ satisfaction were compared between the two groups. ResultsThe endoscopic gastric mucosal visibility, the echoendoscopic clarity of gastric cavity and gastric mucosal, and satisfaction in the observation group were better than those in the control group (all P＜0.05). There were no adverse reactions such as severe vomiting, aspiration, reflux, and asphyxia in either group. ConclusionDrinking an appropriate amount of purified water before echoendoscopy (within the allowable time for gastric emptying) can effectively eliminate mucus and foam in patients′ stomach. The combination of dimethicone powder and purified water can improve endoscopic mucosal visibility, echoendoscopic image clarity, and patient′s satisfaction.

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