In this study, we aimed to compare combined premedication with simethicone or N-acetylcysteine (NAC) for mucosal visualisation during esophagogastroduodenoscopy (EGD). The primary outcome of the study was comparison of total mucosal visibility score (TMVS) between combined pre-medication (Simethicone+ NAC) and individual pre-medication groups (Simethicone and NAC) in patients undergoing EGD. Secondary outcomes included comparison of TMVS between different groups, TMVS in early (10-20 min) versus late (\>20-30 min) endoscopy groups, adequate gastric mucosal visibility, detection of lesions and adverse events related to the pre-medications. Adequate and inadequate gastric mucosal visibility was defined as a cumulative score of \<7 and ≥7, respectively.
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Difference in the proportion of patients with adequate visibility score between the no intervention and the water plus simethicone solution, water plus N Acetyl cysteine solution, water plus simethicone and N Acetyl cysteine solution
Timeframe: 20 minutes