Document Detail

The diagnostic accuracy of esophageal capsule endoscopy in patients with gastroesophageal reflux disease and Barrett's esophagus: a blinded, prospective study.
MedLine Citation:
PMID:  17459025     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Esophageal capsule endoscopy (ECE) is a novel technique that offers noninvasive evaluation of esophageal pathology in gastroesophageal reflux disease (GERD) patients. OBJECTIVE: To assess the diagnostic accuracy of ECE for Barrett's esophagus (BE), erosive esophagitis, and hiatal hernia and to assess the safety profile of ECE. METHODS: Patients with GERD symptoms and those undergoing BE surveillance were prospectively enrolled. All patients underwent ECE followed by standard upper endoscopy. ECE findings were interpreted by examiners blinded to endoscopy results. The gold standard was the findings at endoscopy and ECE results were compared with those at endoscopy. RESULTS: One hundred patients were enrolled of which 94 completed the study. At upper endoscopy, BE was suspected in 53 (mean length 3.1 cm) and confirmed in 45 patients. Erosive esophagitis and hiatal hernia were identified in 18 and 70 patients, respectively. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of ECE for BE in GERD patients were 67%, 87%, 60%, and 90%, respectively. The sensitivity, specificity, PPV, and NPV of ECE for BE patients undergoing surveillance were 79%, 78%, 94%, and 44%, respectively. The sensitivity, specificity, PPV, and NPV for erosive esophagitis were 50%, 90%, 56%, and 88% and for hiatal hernia were 54%, 67%, 83%, and 33%, respectively. CONCLUSIONS: Current diagnostic rates of ECE for BE are not yet accurate enough for application in clinical practice. An improvement in technology and learning curve assessments are required, until then standard upper endoscopy remains the gold standard.
Prateek Sharma; Sachin Wani; Amit Rastogi; Ajay Bansal; April Higbee; Sharad Mathur; Romeo Esquivel; Lisa Camargo; Richard E Sampliner
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Publication Detail:
Type:  Clinical Trial; Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2007-04-24
Journal Detail:
Title:  The American journal of gastroenterology     Volume:  103     ISSN:  0002-9270     ISO Abbreviation:  Am. J. Gastroenterol.     Publication Date:  2008 Mar 
Date Detail:
Created Date:  2008-03-17     Completed Date:  2008-06-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0421030     Medline TA:  Am J Gastroenterol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  525-32     Citation Subset:  IM    
Veterans Affairs Medical Center, Kansas City, Missouri 64128-2295, USA.
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MeSH Terms
Aged, 80 and over
Barrett Esophagus / diagnosis*
Capsule Endoscopy*
Esophagitis / diagnosis
Gastroesophageal Reflux / diagnosis*
Hernia, Hiatal / diagnosis
Middle Aged
Predictive Value of Tests
Sensitivity and Specificity
Single-Blind Method

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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