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Watanabe K, Koizumi S, Shirane K, Tsuda H, Watanabe H, Tsuji T, Onochi K, Yamai K, Kusano C, Dohmen T, Horikawa Y, Ajimine T, Shimodaira Y, Matsuhashi T, Iijima K. Diverse contributions of the visceral fat area to the etiology of two distinct subtypes of esophago-gastric junctional adenocarcinoma. Scand J Gastroenterol 2022; 57:1463-1469. [PMID: 35737566 DOI: 10.1080/00365521.2022.2089859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND There are two distinct etiologies of esophago-gastric junctional adenocarcinomas (EGJACs): one associated with extensive gastric mucosal atrophy (GA), resembling non-cardiac gastric cancers; and the other related to gastro-esophageal reflux disease, resembling esophageal adenocarcinoma. In this study, we investigated the associations between the visceral fat area (VFA) and EGJACs separately in the two subtypes of EGJACs, depending on the extent of background GA. METHODS Sixty-four consecutive patients with EGJACs (Siewert type 2) were enrolled from a population-based database in Akita Prefecture, Japan, between 2014 and 2019. Two age- and sex-matched healthy controls were randomly assigned to each EGJAC case. The extents of GA were evaluated endoscopically, and the VFA values were measured based on computed tomography images. Logistic regression analyses were performed to investigate the associations between EGJACs and the VFA. RESULTS Study subjects were classified into 2 subgroups depending on the extent of endoscopic GA: 29 (45.3%) without and 35 (54.7%) with extensive GA. Multivariable regression analyses revealed that a VFA of ≥100 cm2 was significantly associated with EGJACs in subjects without extensive GA [odds ratio (95% confidence interval): 2.65 (1.08-6.54)], while there was no such association in subjects with extensive GA [odds ratio (95% confidence interval): 1.52 (0.60-3.83)]. CONCLUSIONS The contribution of the VFA to the etiology of EGJACs seems to differ depending on the extent of background GA, with the VFA more prominently associated with EGJACs in subjects without extensive GA than in those with it, providing further rationale concerning the heterogeneous nature of EGJAC etiology.
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Affiliation(s)
- Kenta Watanabe
- Department of Gastroenterology, Akita University Graduate School of Medicine, Akita City, Japan
| | - Shigeto Koizumi
- Department of Gastroenterology, Akita University Graduate School of Medicine, Akita City, Japan
| | - Kenji Shirane
- Department of Internal Medicine, Shirane Hospital, Akita City, Japan
| | - Hidehiko Tsuda
- Department of Gastroenterology, Akita Kosei Medical Center, Akita City, Japan
| | - Hiroyuki Watanabe
- Department of Gastroenterology, Akita Kosei Medical Center, Akita City, Japan
| | - Tsuyotoshi Tsuji
- Department of Gastroenterology, Akita City Hospital, Akita City, Japan
| | - Kengo Onochi
- Department of Gastroenterology, Omagari Kosei Medical Center, Daisen City, Japan
| | - Kiyonori Yamai
- Department of Gastroenterology, Odate Municipal General Hospital, Odate City, Japan
| | - Chika Kusano
- Department of Gastroenterology, Yuri Kumiai General Hospital, Yurihonjo City, Japan.,Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara City, Japan
| | - Takahiro Dohmen
- Department of Gastroenterology, Yuri Kumiai General Hospital, Yurihonjo City, Japan
| | - Yohei Horikawa
- Department of Gastroenterology, Hiraka General Hospital, Yokote City, Japan
| | - Takuma Ajimine
- Department of Gastroenterology, Northern Akita Municipal Hospital, Kitaakita City, Japan
| | - Yosuke Shimodaira
- Department of Gastroenterology, Akita University Graduate School of Medicine, Akita City, Japan
| | - Tamotsu Matsuhashi
- Department of Gastroenterology, Akita University Graduate School of Medicine, Akita City, Japan
| | - Katsunori Iijima
- Department of Gastroenterology, Akita University Graduate School of Medicine, Akita City, Japan
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