Open Access
CC BY-NC-ND 4.0 · Endosc Int Open 2019; 07(02): E282-E289
DOI: 10.1055/a-0799-9820
Original article
Owner and Copyright © Georg Thieme Verlag KG 2019

Diagnostic yield of capsule endoscopy for small bowel arteriovenous malformations in patients with hereditary hemorrhagic telangiectasia: a systematic review and meta-analysis

Kevin Singh
1   Department of Internal Medicine, New York University School of Medicine, Woodhull Medical and Mental Health Center, Brooklyn, New York, United States
,
Ayla Zubair
1   Department of Internal Medicine, New York University School of Medicine, Woodhull Medical and Mental Health Center, Brooklyn, New York, United States
,
Andrew Prindle
1   Department of Internal Medicine, New York University School of Medicine, Woodhull Medical and Mental Health Center, Brooklyn, New York, United States
,
Ahmed Jamal Nadeem
2   Department of Hematology and Oncology, Lehigh Valley Health Network, Allentown, Pennsylvania, United States
,
Gulam Khan
3   Department of Gastroenterology and Hepatology, New York University School of Medicine, Woodhull Medical and Mental Health Center, Brooklyn, New York, United States
› Author Affiliations
Further Information

Publication History

submitted 04 July 2018

accepted after submission 02 October 2018

Publication Date:
30 January 2019 (online)

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Abstract

Background and study aims Small bowel arteriovenous malformations (AVMs) pose a bleeding risk and have traditionally been diagnosed by invasive enteroscopic procedures in patients with hereditary hemorrhagic telangiectasia (HHT). Capsule endoscopy (CE) is emerging as a safe and non-invasive alternative for small intestinal evaluation, but its diagnostic yield and utility in diagnosing small bowel AVMs in HHT patients are understudied. The aim of this study was to meta-analyze the utility of CE for diagnosing AVMs in HHT patients.

Methods A meta-analysis and systematic review of the literature on CE in HHT patients identified in the PubMed, EMBASE, Scopus, and Cochrane databases from inception to March 2018 were conducted. Summary effects were estimated using a random effects model.

Results After applying exclusion criteria, five studies (n = 124 patients) were eligible for meta-analysis. The pooled diagnostic yield for visualization of small bowel AVMs by CE was 77.0 % (95 % CI 65.8 – 85.4 %, P < 0.001).

Conclusions CE has a good diagnostic yield for small bowel AVMs in HHT. It can be regarded as a sufficient, noninvasive diagnostic modality for identifying small bowel AVMs in HHT patients.