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Anticoagulation Doesn't Foul Capsule Endoscopy


 

LOS ANGELES β€” The rate of small-bowel findings on capsule endoscopy was the same whether or not patients were on anticoagulation or antiplatelet therapy, results from a single-center study showed.

The findings are important because many patients who undergo capsule endoscopy are on anticoagulation and/or antiplatelet agents, and β€œthe findings and yield in these patients compared to others is not well documented,” a team of researchers from the University of Illinois Medical Center at Chicago wrote in a poster presented at the annual Digestive Disease Week.

They studied 196 patients referred to the medical center for capsule endoscopy between April 2004 and March 2006. Of the 196 patients, 26 (13%) had gastric bleeding as shown on capsule endoscopy. Of these 26 patients, 17 (65%) had the following gastric lesions: 8 had gastropathy, 7 had erosions, 1 had an ulcer, and 1 had an arteriovenous malformation (AVM).

In addition, 18 patients (69%) had either no small-bowel lesion or a single, small, nonbleeding AVM. This suggests that the gastric site was the primary cause of the bleeding.

No significant difference was seen in the prevalence of gastric blood in patients using antiplatelet or anticoagulation agents, compared with those who were not using these drugs (11% vs. 15%, respectively). Also, the prevalence of small-bowel lesions was similar in these two groups, regardless of the combination of agents used.

The researchers did note a significantly higher frequency of gastric bleeding in patients who underwent capsule endoscopy between April 2004 and March 2006, compared with those who underwent the procedure between April 2002 and March 2004 (20% vs. 5%, respectively).

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