Chronic viral mixt-hepatitis: current clinical and epidemiological aspects

Abstract

Objective: Improvement of the diagnosis and prognosis of liver disease of viral etiology based on the analysis of clinical and epidemiological characteristics of the course and outcome of viral mixt-hepatitis. Materials and methods There are presented results of the retrospective study of 106 patients with chronic viral mixt-hepatitis (study group), which were under the medical observation for a period from two to five years between 2010 and 2014. The comparison group was consisted of 1,913 patients with chronic hepatitis C. Results and discussion The morbidity of chronic viral mixt-hepatitis in the majority of cases is registered among socially active groups of young and middle age persons, more common among males. Frequent risk factors are the artificial factor (55%), the intravenous drug usage (25%), tattooing (19%). Typical concomitant illnesses are diseases of the gastrointestinal tract and the endocrine system. Chronic viral mixt-hepatitis is mainly caused by a combination of HCV and HBV, and HCV + HBV + HDV also. HCV replication is noted in 64% of cases, the replication of HBV - in 58%, HDV replication - in 20%. Transformation into cirrhosis in patients with mixt-hepatitis C+B+D was recorded in 25% of cases, in mixt-hepatitis C+B cases - in 7.1%. In the group of C+B+D hepatitis patients, viral replication of HBV and HDV without HCV replication transformation into cirrhosis was seen in 36%. In the case of HDV replication alone, the rate of cirrhosis was 25%, while in cases with isolated HBV replication - 14%. In patients with mixt-infection C+B, the development of cirrhosis was registered within subgroup with simultaneous replication of HBV and HCV viruses in 9% cases. An isolated HCV replication, in general was less often, and led to the transformation into cirrhosis in 6% cases. Conclusions. Simultaneous replication of more than one type of hepatitis virus promotes transformation into cirrhosis, in greater extent, simultaneous replication of HBV + HDV, and monoreplication of HDV virus also. In order to prevent further progression of the pathological process it is recommended the well-timed causal treatment order with account for the predominant virus replication.