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Gut and Liver update

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수록범위 : 1권1호(2007)~13권5호(2019) |수록논문 수 : 1,180
Gut and Liver
13권5호(2019년 09월) 수록논문
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KCI등재 SCI SCOPUS

1Is a Citric Acid Meal Useful for Increasing Accuracy of the 13C-Urea Breath Test in Asian Populations?

저자 : Sung Eun Kim

발행기관 : 대한간학회 간행물 : Gut and Liver 13권 5호 발행 연도 : 2019 페이지 : pp. 479-480 (2 pages)

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2Potential for Peritoneal Metastasis after Gastric Perforation Induced by Endoscopic Submucosal Dissection of Early Gastric Cancer

저자 : Bong Eun Lee

발행기관 : 대한간학회 간행물 : Gut and Liver 13권 5호 발행 연도 : 2019 페이지 : pp. 481-482 (2 pages)

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3Management of Antibiotic-Resistant Helicobacter pylori Infection: Perspectives from Vietnam

저자 : Vu Van Khien , Duong Minh Thang , Tran Manh Hai , Nguyen Quang Duat , Pham Hong Khanh , Dang Thuy Ha , Tran Thanh Binh , Ho Dang Quy Dung , Tran Thi Huyen Trang , Yoshio Yamaoka

발행기관 : 대한간학회 간행물 : Gut and Liver 13권 5호 발행 연도 : 2019 페이지 : pp. 483-497 (15 pages)

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Antibiotic resistance is the most important factor leading to the failure of eradication regimens. This review focuses on the prevalence of Helicobacter pylori primary and secondary resistance to clarithromycin, metronidazole, amoxicillin, levofloxacin, tetracycline, and multidrug in Vietnam. We searched the PubMed, EMBASE, Vietnamese National Knowledge Infrastructure, and Vietnamese Biomedical databases from January 2000 to December 2016. The search terms included the following: H. pylori infection, antibiotic (including clarithromycin, metronidazole, amoxicillin, levofloxacin, tetracycline, and multidrug) resistance in Vietnam. The data were summarized in an extraction table and analyzed manually. Finally, Excel 2007 software was used to create charts. Ten studies (three studies in English and seven in Vietnamese) were included in this review. A total of 308, 412, 523, 408, 399, and 268 H. pylori strains were included in this review to evaluate the prevalence of H. pylori primary resistance to amoxicillin, clarithromycin, metronidazole, levofloxacin, tetracycline, and multidrug resistance, respectively. Overall, the primary resistance rates of amoxicillin, clarithromycin, metronidazole, levofloxacin, tetracycline, and multidrug resistance were 15.0%, 34.1%, 69.4%, 27.9%, 17.9% and 48.8%, respectively. Secondary resistance rates of amoxicillin, clarithromycin, metronidazole, levofloxacin, tetracycline, and multidrug resistance were 9.5%, 74.9%, 61.5%, 45.7%, 23.5% and 62.3%, respectively. In Vietnam, primary and secondary resistance to H. pylori is increasing over time and affects the effectiveness of H. pylori eradication. (Gut Liver 2019;13:483-497 ‍)

KCI등재 SCI SCOPUS

4Familial Pancreatic Cancer and Surveillance of High-Risk Individuals

저자 : Hiroyuki Matsubayashi , Kyoichi Takaori , Chigusa Morizane , Yoshimi Kiyozumi

발행기관 : 대한간학회 간행물 : Gut and Liver 13권 5호 발행 연도 : 2019 페이지 : pp. 498-505 (8 pages)

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Family history of pancreatic cancer (PC) is a risk factor for PC development, and the risk level correlates with the number of affected families. A case of PC with ≥1 PC cases in the first-degree relative is broadly defined as familial pancreatic cancer (FPC) and accounts for 5% to 10% of total PC cases. FPC possesses several epidemiological, genetic and clinicopathological aspects that are distinct from those of conventional PCs. In Western countries, FPC registries have been established since the 1990s, and high-risk individuals are screened to detect early PCs. For the pharmacotherapy of FPC, especially in cases with germline pathogenic BRCA mutations, regimens using platinum and poly (ADP-ribose) polymerase inhibitor have recently been studied for their effectiveness. To date, the concept of FPC has prevailed in Western countries, and it has begun to infiltrate into Eastern countries. As the genetic background and environmental conditions vary in association with ethnicity and living area, we need to establish our own FPC registries and accumulate data in Asian countries. (Gut Liver 2019;13:498-505 ‍)

KCI등재 SCI SCOPUS

5Effect of Citric Acid on Accuracy of 13C-Urea Breath Test after Helicobacter pylori Eradication Therapy in a Region with a High Prevalence of Atrophic Gastritis

저자 : Yong Hwan Kwon , Nayoung Kim , Hyuk Yoon , Cheol Min Shin , Young Soo Park , Dong Ho Lee

발행기관 : 대한간학회 간행물 : Gut and Liver 13권 5호 발행 연도 : 2019 페이지 : pp. 506-514 (9 pages)

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Background/Aims: The validity of 13C-urea breath test (13C-UBT) for Helicobacter pylori detection is influenced by atrophic gastritis. The aim of this study was to evaluate the effect of citric acid on the accuracy of 13C-Urea breath test after H. pylori eradication therapy in a region where atrophic gastritis is common. Methods: In this prospective study, H. pylori-positive patients received 13C-UBT after H. pylori eradication regimen. They were classified into citric acid group and control group. To determine diagnostic accuracy of 13C-UBT, patients were offered invasive methods. Results: A total of 1,207 who successfully took H. pylori-eradication regimen received UBT. They were assigned into the citric acid group (n=562) and the control group (n=645). The mean 13C-UBT value of the citric acid group was 10.3±26.4‰, which was significantly (p<0.001) higher than that of that control group (5.1‰±12.6‰). Of these patients 122 patients were evaluated by endoscopic biopsy methods. Based on invasive tests, the accuracy, sensitivity, specificity, positive predictive value, and negative predictive value of 13C-UBT for the citric acid group were 83.3%, 91.7%, 81.3%, 55.0%, and 97.5%, respectively. Those of the control group were 87.7%, 90.9%, 88.2%, 62.5%, and 97.8%, respectively. They were not significantly different between the two groups. Although the presence of gastric atrophy and intestinal metaplasia (IM) decreased the accuracy, the decrease was not significant. Conclusions: In a country with high prevalence of atrophic gastritis or IM, false positivity remained common despite the use of citric acid in 13C-UBT. (Gut Liver 2019;13:506-514 ‍

KCI등재 SCI SCOPUS

6Long-term Clinical Outcomes and Risk of Peritoneal Seeding after Endoscopic Submucosal Dissection for Early Gastric Cancer: A Focus on Perforation during the Procedure

저자 : Cheal Wung Huh , Gi Jun Kim , Byung-wook Kim , Myeongsook Seo , Joon Sung Kim

발행기관 : 대한간학회 간행물 : Gut and Liver 13권 5호 발행 연도 : 2019 페이지 : pp. 515-521 (7 pages)

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Background/Aims: The risk of peritoneal seeding following perforation after endoscopic resection in patients with early gastric cancer is unclear. The purpose of this study was to investigate long-term clinical outcomes including peritoneal seeding and overall survival rate following gastric perforation during endoscopic submucosal dissection (ESD). Methods: Between January 2002 and March 2015, 556 patients were diagnosed with early gastric cancer and underwent ESD. Among them, 34 patients (6.1%) experienced gastric perforation during ESD. Clinicopathological data of these patients were reviewed to determine the clinical outcome and evidence of peritoneal seeding. Results: Among 34 patients with perforation, macroperforations occurred during ESD in 17 cases (50%), and microperforation was identified in the remaining 17 cases (50%). All patients except one who underwent emergency surgery due to severe panperitonitis were managed successfully by endoscopic clipping (n=27) or conservative medical treatment (n=6). No evidence of peritoneal seeding after perforation associated with ESD was found in our cohort. Cumulative survival rates did not differ between the perforation and non-perforation groups (p=0.691). Furthermore, mortality was not associated with perforation. In addition, multivariate analysis showed that tumor size and achievement of curative resection were related to cancer recurrence. Perforation was not associated with cancer recurrence and survival. Conclusions: Perforation associated with ESD does not lead to worse clinical outcomes such as peritoneal seeding or cumulative survival rate. Therefore, periodic follow-up might be possible if curative resection was achieved even if perforation occurred during ESD. (Gut Liver 2019;13:515-521 ‍)

KCI등재 SCI SCOPUS

7ABC Classification Is Less Useful for Older Koreans Born before 1960

저자 : Hyungyung Kwon , Sun-young Lee , Jun Hyun Kim , Sang Pyo Lee , Jeong Hwan Kim , In-kyung Sung , Hyung Seok Park , Chan Sup Shim

발행기관 : 대한간학회 간행물 : Gut and Liver 13권 5호 발행 연도 : 2019 페이지 : pp. 522-530 (9 pages)

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Background/Aims: In the ABC classification system, group A consists of seronegative subjects without gastric corpus atrophy. This study aimed to determine the prevalence and characteristics of pseudo group A subjects. Methods: Group A subjects were identified among consecutive Korean adults who underwent a serum anti-Helicobacter pylori immunoglobulin G (IgG) test and pepsinogen (PG) assay on the day of endoscopy. Past infection was defined as the presence of either eradication history or endoscopic findings suggesting past infection (i.e., gastric xanthoma, metaplastic gastritis, or advanced atrophy >closed-type 1). Results: Among 2,620 group A subjects, 448 (17.1%) had eradication history, and 133 (5.1%) showed endoscopic findings suggesting past infection. Older age (odds ratio [OR], 1.148; 95% confidence interval [CI], 1.067 to 1.236) and earlier year of birth (OR, 1.086; 95% CI, 1.009 to 1.168) were independent risk factors for classification into pseudo group A, with cutoff points at 50.5 years and birth year of 1959.5, respectively. Positive H. pylori test findings were found in 22 subjects (3.1%) among the 715 subjects who underwent the urea breath test or Giemsa staining on the same day. Current infection was positively correlated with PG I and PG II levels (p<0.001) but not with age, anti-H. pylori IgG titer, or classification into pseudo group A. Conclusions: Among the group A subjects, 22.2% had past infection. The risk was higher in subjects older than 50 years, especially those born before 1960. Furthermore, current infection was found in 3.1% of the subjects and was correlated with increased gastric secretory ability. (Gut Liver 2019;13:522-530 ‍)

KCI등재 SCI SCOPUS

8Ten-Day Concomitant, 10-Day Sequential, and 7-Day Triple Therapy as First-Line Treatment for Helicobacter pylori Infection: A Nationwide Randomized Trial in Korea

저자 : Beom Jin Kim , Hyuk Lee , Yong Chan Lee , Seong Woo Jeon , Gwang Ha Kim , Hyun-soo Kim , Jae Kyu Sung , Dong Ho Lee , Heung Up Kim , Moo In Park , Il Ju Choi , Soon Man Yoon , Sang Wook Kim , Gwang Ho B

발행기관 : 대한간학회 간행물 : Gut and Liver 13권 5호 발행 연도 : 2019 페이지 : pp. 531-540 (10 pages)

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Background/Aims: This nationwide, multicenter prospective randomized controlled trial aimed to compare the efficacy and safety of 10-day concomitant therapy (CT) and 10-day sequential therapy (ST) with 7-day clarithromycin-containing triple therapy (TT) as first-line treatment for Helicobacter pylori infection in the Korean population. Methods: Patients with H. pylori infection were assigned randomly to 7d-TT (lansoprazole 30 mg, amoxicillin 1 g, and clarithromycin 500 mg twice daily for 7 days), 10d-ST (lansoprazole 30 mg and amoxicillin 1 g twice daily for the first 5 days, followed by lansoprazole 30 mg, clarithromycin 500 mg, and metronidazole 500 mg twice daily for the remaining 5 days), or 10d-CT (lansoprazole 30 mg, amoxicillin 1 g, clarithromycin 500 mg, and metronidazole 500 mg twice daily for 10 days). The primary endpoint was eradication rate by intention-to-treat (ITT) and per-protocol (PP) analyses. Results: A total of 1,141 patients were included. The 10d-CT protocol achieved a markedly higher eradication rate than the 7d-TT protocol in both the ITT (81.2% vs 63.9%) and PP analyses (90.6% vs 71.4%). The eradication rate of the 10d-ST protocol was superior to that of the 7d-TT protocol (76.3% vs 63.9%, ITT analysis; 85.0% vs 71.4%, PP analysis). No significant differences in adherence or serious side effects were found among the three treatment arms. Conclusions: The 10d-CT and 10d-ST regimens were superior to the 7d-TT regimen as standard first-line treatment in Korea. (Gut Liver 2019;13:531-540 ‍)

KCI등재 SCI SCOPUS

9Serum Infliximab Cutoff trough Level Values for Maintaining Hematological Remission in Pediatric Inflammatory Bowel Disease

저자 : So Yoon Choi , Ben Kang , Yon Ho Choe

발행기관 : 대한간학회 간행물 : Gut and Liver 13권 5호 발행 연도 : 2019 페이지 : pp. 541-548 (8 pages)

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Background/Aims: Infliximab (IFX) often loses its therapeutic effect in initial responders with inflammatory bowel disease (IBD) over time. Low serum IFX trough levels (TLs) are linked to poor clinical response and outcomes. Maintenance of optimal therapeutic IFX concentrations is important for sustaining response and achieving good clinical outcomes. Measurement of serum IFX TLs is helpful for determining a further proper therapeutic plan. However, adequate therapeutic IFX TLs in pediatric IBD is uncertain. We aimed to identify the cutoff values for IFX TLs associated with laboratory response to IFX maintenance therapy. Methods: Patients with pediatric IBD who had received IFX infusions between December 2008 and March 2015 at Samsung Medical Center were retrospectively investigated. We analyzed 239 blood samples that were collected from 103 pediatric patients. We measured IFX TLs at induction (6 and 14 weeks) and during maintenance therapy (>22 weeks, 8 weeks interval) by fluid-phase radioimmunoassays. Results: A significant association was found between the erythrocyte sedimentation rate (ESR) and IFX TLs during maintenance (correlation coefficient, -0.11; p=0.0005). A cutoff value of 18 mm/hr for ESR was used to define higher levels. Receiver operating characteristic analysis identified optimal cutoff values: IFX TL >1.58 µg/mL (sensitivity 82% and specificity 73%). Conclusions: Cutoff values are considered a prerequisite for further investigating the clinical usefulness of measurements of IFX in patients maintained with IFX treatment. (Gut Liver 2019;13:541-548 ‍)

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10Comparison of the Clinical Characteristics and Outcomes between Leprosy-Affected Persons in Sorokdo and the General Population Affected by Chronic Hepatitis C in Korea

저자 : Young-hwan Ahn , Hyungcheol Park , Myeon Jae Lee , Dong Hyun Kim , Sung Bum Cho , Eunae Cho , Chung Hwan Jun , Sung Kyu Choi

발행기관 : 대한간학회 간행물 : Gut and Liver 13권 5호 발행 연도 : 2019 페이지 : pp. 549-556 (8 pages)

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Background/Aims: Patients with Hansen's disease are the most vulnerable to hepatitis C. However, no data on the treatment efficacy of direct-acting antiviral agents (DAAs) are available in this group. Therefore, we elucidated the prevalence and clinical outcomes of hepatitis C in persons affected by leprosy in Sorokdo, Jeollanam-do, Korea. Methods: We retrospectively included 50 leprosy patients with positive hepatitis C virus (HCV) RNA test results (group A) hospitalized at the Sorokdo National Hospital from May 2016 to March 2018 and 73 patients with chronic hepatitis C who were treated with DAAs at the Chonnam National University Hospital (group B) from May 2016 to December 2017. Results: Overall, at the Sorokdo National Hospital, positive HCV antibody and HCV RNA rates were 18.4% and 11.0%, respectively. The mean participant age was 76.5±7 years, and 58% of participants were men. The genotypes were type 1b in 44% (22 out of 50) and type 2 in 56% (28 out of 50). Sustained virologic response was achieved at a rate of 95.5% (21/22) in genotype 1b and 92.9% (26/28) in genotype 2 patients. Ribavirin-induced hemolytic anemia occurred in 57.1% (16/28) of patients with genotype 2. Among these, 28.5% (8/28) received blood transfusions. Conclusions: Treatment efficacy was not different between the leprosy-affected population and the general population. However, severe ribavirin-induced hemolytic anemia requiring transfusion was present in 28.5% of genotype 2 patients. Therefore, we suggest ribavirin-free DAAs for the treatment of genotype 2 hepatitis C in leprosy-affected persons in the future. (Gut Liver 2019;13:549-556 ‍)

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