2017 Volume 59 Issue 10 Pages 2526-2532
It was examined whether observing the visibility of collecting vessels (CV) and the glandular structure (GS) by close observation of the gastric fundic mucosa using the EG-L580NW laser transnasal endoscope, can be used to diagnose the Helicobacter pylori (Hp) status. CV and GS visibility were each classified into three groups of disappearance, or unclear or clear visibility, respectively. ① In the case of present Hp infection, the CV had disappeared but the GS was clearly visible ; ② in the case of post-Hp eradication, the CV were clearly or unclearly visible, and the GS had disappeared ; ③ in the case of non-infection, the CV were clearly visible. It is suggested that these findings improve the specificity of the diagnosis of Hp status. Disappearance of GS was observed less than 2 years after Hp eradication. For diagnosis of Hp status, it is important to closely and carefully observe the gastric mucosa while avoiding lesions of intestinal metaplasia which are suggested by lavender coloration using the LCI (Linked Color Imaging) mode.
