Outcomes
gastric injury, small-intestinal injury, erosions, Gastric injury
SECONDARY
The primary outcome was the rate of gastric injury progression from 6 to 12 months after PCI in the modified intention-to-treat (mITT) population, including those obtaining 3 comprehensive MCE results. Differences reflected the 6-month randomization period to aspirin alone, clopidogrel alone, or continued DAPT. Injuries in the stomach were counted separately based on anatomic region (gastric fundus, body, antrum, or angulus). Gastric injury progression was defined as the quantitative increase in erosions or ulcersThe key secondary outcome was the rate of small-intestinal injury progression among the mITT population during the 6 months after randomization. Injuries in the small intestine were counted separately according to the proximal, middle, and distal small intestine divided by transit time.We examined subgroups according to whether a previous gastric or small-intestinal injury was present on the 6-month MCE. In patients with gastric injury after 6 months of DAPT, we examined the incidence of gastric injury progression from randomization to 12 months. Newly developed gastric injury was defined as the de novo development of gastric injury between 6 and 12 months in the group with no gastric injury after 6 months of DAPT. Subgroup analysis was also performed in patients with and without small-intestinal injury at the second (6-month) MCE.