Third-Generation Capsule Endoscopy Outperforms Second-Generation Based on the Detectability of Esophageal Varices

Background and Aim. The third-generation capsule endoscopy (SB3) was shown to have better image resolution than that of SB2. The aim of this study was to compare SB2 and SB3 regarding detectability of esophageal varices (EVs). Methods. Seventy-six consecutive liver cirrhosis patients (42 men; mean a...

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Bibliographic Details
Published in:Gastroenterology research and practice 2016-01, Vol.2016 (2016), p.1-6
Main Authors: Chayama, Kazuaki, Nagaoki, Yuko, Igawa, Atsushi, Otani, Ichiro, Tanaka, Shinji, Oka, Shiro, Kunihara, Sayoko, Aikata, Hiroshi
Format: Article
Language:English
Subjects:
Accuracy
Age
Clinical Study
Diagnosis
Endoscopic surgery
Endoscopy
Esophageal diseases
Esophagus
Gastrointestinal system
Liver cirrhosis
Varicose veins
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Summary:Background and Aim. The third-generation capsule endoscopy (SB3) was shown to have better image resolution than that of SB2. The aim of this study was to compare SB2 and SB3 regarding detectability of esophageal varices (EVs). Methods. Seventy-six consecutive liver cirrhosis patients (42 men; mean age: 67 years) received SB3, and 99 (58 men; mean age, 67 years old) received SB2. All patients underwent esophagogastroduodenoscopy within 1 month prior to capsule endoscopy as gold standard for diagnosis. The diagnosis using SB3 and SB2 for EVs was evaluated regarding form (F0–F3), location (Ls, Lm, and Li), and the red color (RC) sign of EVs. Results. SB2 and SB3 did not significantly differ on overall diagnostic rates for EV. Sensitivity, specificity, positive predictive value, and negative predictive value of SB2/SB3 for EV diagnosis were, respectively, 65%/81%, 100%/100%, 100%/100%, and 70%/62%. However, the diagnostic rates for EV form F1 were 81% using SB3 and 52% using SB2 (P=0.009). Further, the diagnostic rates for Ls/Lm varices were 79% using SB3 and 81% using SB2, and, for Li, varices were 84% using SB3 and 52% using SB2 (P=0.02). Conclusion. SB3 significantly improved the detectability of EVs compared with SB2.
ISSN:1687-6121
1687-630X
DOI:10.1155/2016/9671327