古市　好宏
   Department   School of Medicine(Tokyo Women's Medical University Adachi Medical Center), School of Medicine
   Position   Associate Professor
Article types Original article
Language English
Peer review Peer reviewed
Title Role of dual red imaging to guide intravariceal sclerotherapy injection of esophageal varices (with videos).
Journal Formal name：Gastrointestinal endoscopy
Abbreviation：Gastrointest Endosc
ISSN code：10976779/00165107
Domestic / ForeginForegin
Volume, Issue, Page 87(2),pp.360-369
Author and coauthor Furuichi Yoshihiro, Gotoda Takuji, Kasai Yoshitaka, Takeuchi Hirohito, Yoshimasu Yuu, Kawai Takashi, Itoi Takao
Publication date 2018/02
Summary BACKGROUND AND AIMS:Dual red imaging (DRI) is a novel image-enhanced endoscopy technique that can increase the visibility and predict the depth of esophageal varices (EVs). The recurrence rate of EVs after endoscopic injection sclerotherapy (EIS) reportedly decreases by intravariceal injection of a sclerosant. We evaluated prospectively whether the EIS success rate was increased by DRI compared with the white-light imaging (WLI) mode.METHODS:A total of 79 patients with EVs were randomly divided into the DRI (n = 40) and WLI (n = 39) groups. The primary endpoint was the success rate of intravariceal injection on the first EIS puncture. The secondary endpoint was the recurrence rate. A variable puncture needle was used, and the length was adjusted according to the EV visibility change by DRI. In the WLI group, DRI was not used.RESULTS:The success rate of the first puncture was significantly higher in the DRI group than in the WLI group (80.0% vs 46.2%; P = .0018). The cumulative recurrence rate was significantly lower in the DRI group (P = .031). The sum of the depth and luminal diameter of EVs was investigated by EUS. The Pearson correlation coefficient between this value and the needle length was higher in the DRI group than in the WLI group (r = 0.878 vs 0.603).CONCLUSIONS:DRI increased the EIS success rate and decreased the recurrence rate. This resulted from the puncture needle adjustment to the appropriate length via EV depth prediction by DRI.
DOI 10.1016/j.gie.2017.06.032
PMID 28694009