CLINICAL AND LABORATORY CHARACTERISTICS OF CHRONIC HEPATITIS C IN VIETNAM ON THE EXAMPLE OF HO CHI MINH CITY HEPATOLOGY CLINIC
https://doi.org/10.22625/2072-6732-2016-8-4-72-78
Abstract
Objectives. To provide clinical and laboratory characteristics of chronic hepatitis C in Vietnam.
Materials and methods. A retrospective analysis of data about 1870 HCV patients observed at Hepatology Clinic in Ho Chi Minh City, Vietnam from 2010 to 2015.
Results. Among observed patients, HCV genotype 1 is predominant (48.8%), genotype 6 was registered in 29,7% of patients, and genotype 2 – 18,7%. Advanced fibrosis (F3) and cirrhosis (F4) were detected in 52% of patients. The rate of chronic co-infection with hepatitis B viruse and hepatitis C virus is at 6% of patients. Nearly one-tenth of all observed HCV patients (9%) were diagnosed with hepatocellular carcinoma. In the group of patients who completed the full course of treatment, non-responsers to therapy and have virologic breakthrough, SVR-24 was registered at 73,7% and 75,1% of patients treated with simple or pegylated interferon, respectively. Thus, combination therapy with interferonalpha and ribavirin for the indigenous Vietnamese population has been showed relatively high efficiency.
Conclusion. The findings about clinical and laboratory characteristics of patients with chronic hepatitis C, and the effectiveness of antiviral therapy, have practical importance for preparation a long-term strategy for the elimination of hepatitis C in Vietnam.
About the Authors
D. A. LioznovRussian Federation
Saint-Petersburg
N. H. Chung
Viet Nam
Saint-Petersburg,Ho Chi Minh
S. L. Nikolaenko
Russian Federation
Saint-Petersburg
T. B. Trung
Viet Nam
Ho Chi Minh
F. T. Lan
Viet Nam
Ho Chi Minh
N. Z. Phong
Viet Nam
Ho Chi Minh
References
1. Lioznov D., Chung N.H., Nikolaenko S.L. Treatment of chronic hepatitis C (genotype 6)in patients with contraindications to interferon-alfa. Journal Infectology. 2015;7(4):100-102.
2. Al Naamani K, Al Sinani S, Deschênes M. Epidemiology and treatment of hepatitis C genotypes 5 and 6. Canadian Journal of Gastroenterology. 2013; 27(1): e8-e12.2.
3. Bunchorntavakul C, Chavalitdhamrong D, Tanwandee T. Hepatitis C genotype 6: A concise review and response-guided therapy proposal. World Journal of Hepatology. 2013; 5(9): 496-504.
4. Clatts MC, Colon-Lopez V, Giang le M, Goldsamt LA. Prevalence and incidence of HCV infection among Vietnam heroin users with recent onset of injection. Journal of urban health : bulletin of the New York Academy of Medicine. 2010; 87: 278–291.
5. Dunford L, Carr MJ, Dean J, Waters A, Nguyen LT, Ta Thi TH, et al. Hepatitis C Virus in Vietnam: High Prevalence of Infection in Dialysis and Multi-Transfused Patients Involving Diverse and Novel Virus Variants. 2012. PLoS ONE 7(8): e41266.
6. Gish, R. G., Bui, T. D., Nguyen, C. T. K., Nguyen, D. T., Tran, H. V., Tran, D. M. T., Trinh, H. N. and International Group for Liver Health in Viet Nam. Liver disease in Viet Nam: Screening, surveillance, management and education: A 5-year plan and call to action. Journal of Gastroenterology and Hepatology. 2012; 27: 238–247.
7. Hübschen, J. M., Jutavijittum, P., Thammavong, T., Samountry, B., Yousukh, A., Toriyama, K., Sausy, A. and Muller, C. P. High genetic diversity including potential new subtypes of hepatitis C virus genotype 6 in Lao People’s Democratic Republic. Clinical Microbiology and Infection. 2011; 17: E30–E34.
8. Kallman JB, Tran S, Arsalla A, Haddad D, Stepanova M, et al. (2011) Vietnamese community screening for hepatitis B virus and hepatitis C virus. Journal of viral hepatitis 18: 70–76.
9. Khayriyyah Mohd Hanafiah, Justina Groeger, Abraham D. Flaxman, Steven T. Wiersma. Global Epidemiology of Hepatitis C Virus Infection: New Estimates of Age-Specific Antibody to HCV Seroprevalence. Hepatology. 2013; 57(4): 1333-1342.
10. Messina JP, Humphreys I, Flaxman A, et al. Global Distribution and Prevalence of Hepatitis C Virus Genotypes. Hepatology (Baltimore, Md). 2015; 61(1): 77-87.
11. Nguyen VT, McLaws ML, Dore GJ Prevalence and risk factors for hepatitis C infection in rural north Vietnam. Hepatology international. 2007; 1: 387–393.
12. Pham DA, Leuangwutiwong P, Jittmittraphap A, Luplertlop N, Bach HK, et al. High prevalence of Hepatitis C virus genotype 6 in Vietnam. Asian Pacific journal of allergy and immunology/launched by the Allergy and Immunology Society of Thailand. 2009; 27: 153–160.
13. Pham VH, Nguyen HD, Ho PT, Banh DV, Pham HL, et al. Very high prevalence of hepatitis C virus genotype 6 variants in southern Vietnam: largescale survey based on sequence determination. Japanese journal of infectious diseases. 2011; 64: 537–539.
14. Tanimoto T, Nguyen HC, Ishizaki A, Chung PT, Hoang TT, et al. Multiple routes of hepatitis C virus transmission among injection drug users in Hai Phong, Northern Vietnam. J Med Virol. 2010; 82: 1355–1363.
15. WHO Library Cataloguing-in-Publication Data Guidelines for the screening care and treatment of persons with chronic hepatitis C infection. Updated version, April 2016. (http://www.who.int/hepatitis/publications/hepatitis-cguidelines-2016/en/)
Review
For citations:
Lioznov D.A., Chung N.H., Nikolaenko S.L., Trung T.B., Lan F.T., Phong N.Z. CLINICAL AND LABORATORY CHARACTERISTICS OF CHRONIC HEPATITIS C IN VIETNAM ON THE EXAMPLE OF HO CHI MINH CITY HEPATOLOGY CLINIC. Journal Infectology. 2016;8(4):72-78. (In Russ.) https://doi.org/10.22625/2072-6732-2016-8-4-72-78