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Hisatomi Arima 2 Articles
Association between occurrence of multiple white and flat elevated gastric lesions and oral proton pump inhibitor intake
Rino Hasegawa, Kenshi Yao, Takao Kanemitsu, Hisatomi Arima, Takayuki Hirase, Yuuya Hiratsuka, Kazuhiro Takeda, Kentaro Imamura, Kensei Ohtsu, Yoichiro Ono, Masaki Miyaoka, Takashi Hisabe, Toshiharu Ueki, Hiroshi Tanabe, Atsuko Ohta, Satoshi Nimura
Clin Endosc 2024;57(1):65-72.   Published online May 9, 2023
Graphical AbstractGraphical Abstract AbstractAbstract PDFSupplementary MaterialPubReaderePub
/Aims: Multiple white and flat elevated lesions (MWFL) that develop from the gastric corpus to the fornix may be strongly associated with oral antacid intake. Therefore, this study aimed to determine the association between the occurrence of MWFL and oral proton pump inhibitor (PPI) intake and clarify the endoscopic and clinicopathological characteristics of MWFL.
The study included 163 patients. The history of oral drug intake was collected, and serum gastrin levels and anti-Helicobacter pylori immunoglobulin G antibody titers were measured. Upper gastrointestinal endoscopy was performed. The primary study endpoint was the association between MWFL and oral PPI intake.
In the univariate analyses, MWFL were observed in 35 (49.3%) of 71 patients who received oral PPIs and 10 (10.9%) of 92 patients who did not receive oral PPIs. The occurrence of MWFL was significantly higher among patients who received PPIs than in those who did not (p<0.001). Moreover, the occurrence of MWFL was significantly higher in patients with hypergastrinemia (p=0.005). In the multivariate analyses, oral PPI intake was the only significant independent factor associated with the presence of MWFL (p=0.001; odds ratio, 5.78; 95% confidence interval, 2.06–16.2).
Our findings suggest that oral PPI intake is associated with the presence of MWFL (UMINCTR 000030144).


Citations to this article as recorded by  
  • Endoscopic findings and outcomes of gastric mucosal changes relating to potassium‐competitive acid blocker and proton pump inhibitor therapy
    Satoshi Shinozaki, Hiroyuki Osawa, Yoshimasa Miura, Hiroaki Nomoto, Hirotsugu Sakamoto, Yoshikazu Hayashi, Tomonori Yano, Edward J. Despott, Hironori Yamamoto
    DEN Open.2025;[Epub]     CrossRef
  • Clinicians should be aware of proton pump inhibitor–related changes in the gastric mucosa
    Gwang Ha Kim
    Clinical Endoscopy.2024; 57(1): 51.     CrossRef
  • Drug-induced mucosal alterations observed during esophagogastroduodenoscopy
    Masaya Iwamuro, Seiji Kawano, Motoyuki Otsuka
    World Journal of Gastroenterology.2024; 30(16): 2220.     CrossRef
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Non-atrophic gastric mucosa is an independently associated factor for superficial non-ampullary duodenal epithelial tumors: a multicenter, matched, case-control study
Azusa Kawasaki, Kunihiro Tsuji, Noriya Uedo, Takashi Kanesaka, Hideaki Miyamoto, Ryosuke Gushima, Yosuke Minoda, Eikichi Ihara, Ryosuke Amano, Kenshi Yao, Yoshihide Naito, Hiroyuki Aoyagi, Takehiro Iwasaki, Kunihisa Uchita, Hisatomi Arima, Hisashi Doyama
Clin Endosc 2023;56(1):75-82.   Published online January 5, 2023
AbstractAbstract PDFPubReaderePub
/Aims: The etiology of superficial non-ampullary duodenal epithelial tumors (SNADETs) remains unclear. Recent studies have reported conflicting associations between duodenal tumor development and Helicobacter pylori infection or endoscopic gastric mucosal atrophy. As such, the present study aimed to clarify the relationship between SNADETs and H. pylori infection and/or endoscopic gastric mucosal atrophy.
This retrospective case-control study reviewed data from 177 consecutive patients with SNADETs who underwent endoscopic or surgical resection at seven institutions in Japan over a three-year period. The prevalence of endoscopic gastric mucosal atrophy and the status of H. pylori infection were compared in 531 sex- and age-matched controls selected from screening endoscopies at two of the seven participating institutions.
For H. pylori infection, 85 of 177 (48.0%) patients exhibited SNADETs and 112 of 531 (21.1%) control patients were non-infected (p<0.001). Non-atrophic mucosa (C0 to C1) was observed in 96 of 177 (54.2%) patients with SNADETs and 112 of 531 (21.1%) control patients (p<0.001). Conditional logistic regression analysis revealed that non-atrophic gastric mucosa was an independent risk factor for SNADETs (odds ratio, 5.10; 95% confidence interval, 2.44–8.40; p<0.001).
Non-atrophic gastric mucosa, regardless of H. pylori infection status, was a factor independently associated with SNADETs.
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