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Gonoi W, Okuma H, Hayashi TY, Akahane M, Nakai Y, Tateishi R, Mizuno S, Suzuki Y, Mitsuda M, Matsuda K, Nakagawa K, Isayama H, Miyagawa K, Koike K, Abe O. Development of pancreatic cancer during observation for hepatocellular carcinoma: A retrospective cohort study. Saudi J Gastroenterol 2019; 25:390-396. [PMID: 31274472 PMCID: PMC6941454 DOI: 10.4103/sjg.sjg_56_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND/AIMS We aimed to investigate incidence, characteristics, and possible risk factors of pancreatic cancer in patients under observation for hepatocellular carcinoma (HCC) because the association of hepatitis virus B infection and pancreatic cancer has been reported. PATIENTS AND METHODS We performed a retrospective cohort study in the Gastroenterology Department of a University Hospital in Japan between 2004 and 2012. A total of 1848 patients who underwent treatment for HCC were included at the initiation of treatment for HCC (mean follow-up period, 33.6 months). The patients received trimonthly radiological follow-ups. Newly developed cases of pancreatic cancer during follow-up for HCC were compared with that of an age- and sex-matched theoretical cohort from national statistics. Possible predisposing factors for pancreatic cancer related to HCC were assessed. Cumulative probabilities of developing a pancreatic cancer were compared using log-rank test. RESULTS About 13 of 1848 patients developed pancreatic cancer (mean follow-up period, 45.2 months). The risk ratio for all patients was 3.02 (log-rank test: P =0.01). Statistical analyses showed no effects of the following factors on the development of pancreatic cancer: age, sex, follow-up period, alcohol intake, laboratory data, presence of hepatitis virus, characteristics of HCC, type of treatment, number of radiological examinations, and cumulative effective dose. CONCLUSIONS Increased incidence of pancreatic cancer was found in patients under observation for HCC in a relatively small cohort. HCC or other common underlying conditions might be a risk factor for development of pancreatic cancer.
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Affiliation(s)
- Wataru Gonoi
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Japan,Address for correspondence: Dr. Wataru Gonoi, 7-3-1 Hongo, Bunkyo, Tokyo - 113-8655, Japan. E-mail:
| | - Hidemi Okuma
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Japan
| | - Takana Y. Hayashi
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Japan
| | - Masaaki Akahane
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Japan
| | - Yousuke Nakai
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Japan
| | - Ryosuke Tateishi
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Japan
| | - Suguru Mizuno
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Japan
| | - Yuichi Suzuki
- Department of Radiology, The University of Tokyo Hospital, Japan
| | - Minoru Mitsuda
- Department of Radiology, The University of Tokyo Hospital, Japan
| | - Kanako Matsuda
- Department of Radiology, The University of Tokyo Hospital, Japan
| | - Keiichi Nakagawa
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Japan
| | - Hiroyuki Isayama
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Japan
| | - Kiyoshi Miyagawa
- Section of Radiation Biology, Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Japan
| | - Kazuhiko Koike
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Japan
| | - Osamu Abe
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Japan
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