Small-bowel mucosal injuries in low-dose aspirin users with obscure gastrointestinal bleeding

Figure 1 Endoscopy. A: Endoscopic finding of erosion (a small erosion was defined as a circumscribed area of mucosal disruption denuded of villi with or without exudates or red color with a diameter equivalent to a valvulae conniventes); B: Endoscopic finding of ulcer (ulcers were defined as a large erosion with a central area with exudates).

Figure 2 Proportion of types of non-steroidal anti-inflammatory drugs in the ulcerative or erosive lesions of the small intestine in obscure gastrointestinal bleeding cases. NSAID: Non-steroidal anti-inflammatory drug; LDA: Low-dose aspirin.

Figure 3 Prevalence of ulcerative or erosive lesions in chronic non-steroidal anti-inflammatory drug and low-dose aspirin users. NSAID: Non-steroidal anti-inflammatory drug; LDA: Low-dose aspirin.

Figure 4 Location of ulcerative or erosive lesions of the small intestine in obscure gastrointestinal bleeding cases. ^aP < 0.05 vs erosive lesions.