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ISSN 0187-5337 (Print)
Instituto Nacional de Perinatología

2001, Number 3

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Perinatol Reprod Hum 2001; 15 (3)

Infección por hepatitis viral tipo B y prevención de carcinoma hepatocelular

Flores CME

Language: Spanish
References: 17
Page: 202-209
PDF size: 123.49 Kb.


ABSTRACT

The etiology of the hepatitis is multicausal, so much infectious agents, as metabolic dysfunctions and physical agents can cause it. The virus identified in the hepathology and able to produce hepatitis are seven that usually are transmitted for inoculation of blood or infected hematology products. This infection is very frequent in homosexuals and junkie of intravenous drugs; other groups of risk are the patients and personal of centers for hemodialysis, doctors, odontologists, nurses and personal that works in laboratories and banks of blood.
Three are the main transmission forms: percutaneous, sex and from infected mothers to infants in the moment of the childbirth work. The distribution varies in the entire world, countries with high and low prevalencia. Healthy carriers, reservoirs of the infection can exist.
The virus belongs to the family of the hepadnavirus, it has two important components one external and another intern to which have been identified three antigen-antibody systems that are related with the infection of virus. It is present with risen titles in blood and in exudates of patients with acute or chronic infection, with moderated titles in semen, vaginal secretion and saliva; the feces and the urine are not sources of HBV.
In accordance with the clinical manifestations two are identified: acute hepatitis B and chronic hepatitis B. The patients with chronic hepatitis B can develop hepatic cirrhosis and some of them can progress to hepatocellular carcinoma, which varies according to the immunologic state, age, the serologic state of the infection, genetic and geographical factors.


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