scholarly journals Sa1233 A COMPARATIVE STUDY OF WHITE LIGHT ENDOSCOPY, CHROMOENDOSCOPY AND MAGNIFYING ENDOSCOPY WITH NARROW BAND IMAGING IN THE DIAGNOSIS OF EARLY GASTRIC CANCER AFTER HELICOBACTER PYLORI ERADICATION

2018 ◽  
Vol 87 (6) ◽  
pp. AB175
Author(s):  
Tomomitsu Tahara ◽  
Noriyuki Horiguchi ◽  
Tomohiko Kawamura ◽  
Hyuga Yamada ◽  
Tsuyoshi Terada ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Helicobacter Pylori ◽  
Early Gastric Cancer ◽  
Comparative Study ◽  
White Light ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Magnifying Endoscopy ◽  
Helicobacter Pylori Eradication ◽  
White Light Endoscopy

scholarly journals Comparative study of magnifying narrow-band imaging and conventional white light endoscopy in the diagnosis of Helicobacter pylori status after eradication therapy

Medicine ◽  
2019 ◽  
Vol 98 (46) ◽  
pp. e17697 ◽  
Author(s):  
Tomomitsu Tahara ◽  
Noriyuki Horiguchi ◽  
Hyuga Yamada ◽  
Dai Yoshida ◽  
Tsuyoshi Terada ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Comparative Study ◽  
White Light ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Eradication Therapy ◽  
White Light Endoscopy

A Comparative Study of White Light Endoscopy, Chromoendoscopy and Magnifying Endoscopy with Narrow Band Imaging in the Diagnosis of Early Gastric Cancer after Helicobacter pylori Eradication

2017 ◽  
Vol 26 (4) ◽  
pp. 357-362 ◽  
Author(s):  
Noriyuki Horiguchi ◽  
Tomomitsu Tahara
Keyword(s):  
Gastric Cancer ◽  
White Light ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Magnifying Endoscopy ◽  
Control Group ◽  
Diagnostic Reliability ◽  
White Light Endoscopy ◽  
H Pylori ◽  
Surface Differentiation

Background & Aim: Early-stage gastric cancer (EGC) found after H. pylori eradication often has non-tumorous epithelium on the tumorous tissue and/or surface differentiation of tumors, which may confuse endoscopic and histologic diagnosis. We investigated the diagnostic reliability of EGC using conventional white light endoscopy (WLE), chromoendoscopy (CE) using indigo carmine, and magnifying endoscopy with narrow band imaging (ME-NBI) in patients with EGC with or without history of prior H. pylori eradication therapy.Methods: Diagnostic reliability of EGC by using the WLE, CE and ME-NBI was investigated in 71 EGC lesions diagnosed after successful H. pylori eradication (eradication group) and 115 EGC lesions with current H. pylori infection (control group).Results: Diagnostic reliability of EGC was lower in the eradication group than in the control group using all three modalities. In particular, the diagnostic accuracy of CE in the eradication group was especially lower compared to that of the control group (WLE: 74.6% vs. 86.1%, P=0.05; CE: 64.8% vs. 91.3%, P<0.0001; ME-NBI: 88.7% vs. 98.2%, P=0.01). The ME-NBI scored better in comparison with WLE and CE in the eradication group (both P<0.05). The indistinct EGC lesions in the eradicated group by using CE were associated with the presence of histological changes such as non-tumorous epithelium on the tumor and/or surface differentiation of tumors (P=0.005).Conclusions: It should be noted that the diagnostic reliability of EGC after H. pylori eradication becomes lower especially using CE. Indistinguishable cases using CE are associated with histological findings such as non-tumorous epithelium on the tumor and/or surface differentiation of tumors.Abbreviations: CE: chromoendoscopy; EGD: esophagogastroduodenoscopy; EGC: Early-stage gastric cancer; ESD: endoscopic submucosal dissection; H. pylori: Helicobacter pylori; ME-NBI: magnifying endoscopy with narrow band imaging; WLE: white light endoscopy.

Endoscopic submucosal dissection by using Clutch cutter and IT knife 2 for early gastric cancer with severe submucosal fibrosis: a case report

MedPharmRes ◽  
2018 ◽  
Vol 2 (3) ◽  
pp. 17-21
Author(s):  
Nhan Le ◽  
Phuong Vien ◽  
Nghia Le
Keyword(s):  
Gastric Cancer ◽  
Early Gastric Cancer ◽  
Endoscopic Submucosal Dissection ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Magnifying Endoscopy ◽  
Gastrointestinal Cancers ◽  
Pathological Result ◽  
Well Differentiated ◽  
Submucosal Fibrosis

Introduction: Gastric cancer is one of the highly malignant gastrointestinal cancers and the third leading cause of cancer death. In the last decade, early gastric cancer (EGC) has been reported by using narrow-band imaging (NBI) magnifying endoscopy. Advances in endoscopic techniques, such as endoscopic submucosal dissection (ESD), have enabled the en bloc resection of these EGC. Although ESD is performed for early gastric cancer, there are still many difficult problems in technique of this procedure. The difficulty of gastric ESD depends on the size and location of a tumor, presence of severe submucosal fibrosis, presence of ulceration... We report a case of our successful ESD by using Clutch cutter and IT knife 2 in treatment of EGC with severe submucosal fibrosis. Case presentation: A 62-year-old man felt an epigastric discomfort two months ago. The narrow-band imaging (NBI) magnifying endoscopy revealed a suspected early gastric cancer type 0 - IIa + IIc (Japanese classification of early gastrointestinal cancers) at the incisura angularis, the size of this lesion was 15 mm in diameter, and pathological result of endoscopic biopsy was a well-differentiated adenocarcinoma. ESD was performed and we found there was severe submucosal fibrosis which was dissected safer and faster by using Clutch cutter and IT knife 2. There were no complications such as severe bleeding and perforation. The size of resected specimen was 60 x 35 mm and the time of procedure was 150 minutes. After ESD, the pathological result was a well differentiated adenocarcinoma, pT1a, UL(-), LY(-), V(-), no cancer cell in vertical and horizontal margins. The healing time of ESD-induced ulcer was 5 weeks without local recurrence. Conclusion: Through this case, we aim to emphasize the importance of using Clutch cutter and IT knife 2 as a modified technique which makes ESD a safe procedure in treatment of EGC with severe submucosal fibrosis.

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