“…5,6-10 Retention rates reported in the large sample size studies ranged from 0 to 2.4%. 3,[4][5][6][7][8][9][10]25 The risk of retention is high in patients with prolonged nonsteroidal anti-inflammatory drug use, abdominal radiation injury, extensive CD, 35 and previous major abdominal surgery or small-bowel resection. 36 In a recent large study evaluating the capsule retention, Li et al 3 found that the retention rate was 1.4%, the same as the pooled rate of this review, but the most common reason in their study was nonsteroidal anti-inflammatory drug-induced enteropathy (11 of 14), whereas CD was the most common reason in Other included capsule endoscopes that remained in the GI tract at the time of the article preparation (n Z 2), laparoscopically removed (n Z 1), and vomited out (n Z 1).…”