LIVER DISEASES: HEPATITIS B, C, D, AND CIRRHOSIS

Аннотация

This article provides extensive information about hepatitis B, C, D, and liver cirrhosis. The origins, clinical course, diagnostics, treatment methods, and prevention measures of these viral diseases are described in detail. The global epidemiology, statistical indicators, and the impact of liver diseases on human health are highlighted. The article also focuses onmodern treatment methodsand innovativeapproaches. Keywords: Hepatitis B, Hepatitis C, Hepatitis D, Liver Cirrhosis, Viral Hepatitis, Liver Failure, Antiviral Therapy, Prevention, Diagnosis. The liver is one of the most important organs of the body, and its main functions include detoxifying the blood, regulating metabolism, and synthesizing vital proteins. Viral hepatitis B, C, D, and liver cirrhosis are serious diseases of this organ that can lead to dangerous consequences for human life. According to the World Health Organization (WHO), millions ofpeoplesuffer from thesediseases every year. HepatitisB Hepatitis B virus (HBV) is a virus that spreads through the hematogenous route, causing inflammation of the liver. Viral hepatitis B primarily spreads through blood, sexual contact, and perinatal transmission from mother to child. Worldwide, more than 296 million people are carriers of this virus. Hepatitis B is a viral infection caused by HBV (Hepatitis B Virus), which belongs to the Hepadnaviridae family. The disease affects the liver and can occur in either acute or chronic forms. Hepatitis B is widespread globally, with millions of new cases being diagnosed each year. When the virus enters the body, it multiplies in liver cells, leading to inflammation and damage to these cells. Hepatitis B virus is transmitted through the hematogenous route, meaning: Through blood (contaminated needles, syringes, medical or cosmetic instruments) Through sexual contact From mother to child (perinatal route): The disease is often transmitted to the baby during childbirth or through breastfeeding. Additionally, the virus can also spread through household items (toothbrushes, nail clippers). 98,7:ROTCAFTCAPMI.SECNEICS LACIDEM,5202, yraurbeF,5emuloV gro.srehsilbupcimedaca.www Hepatitis B infection can occur in either acute or chronic forms: Acute рepatitis B: The disease usually lasts up to 6 months. Symptoms include jaundice, fatigue, nausea, loss of appetite, and abdominal pain. Chronic hepatitis B: If the virus remains in the body for more than 6 months, the disease progresses to a chronic form. Chronic hepatitis B can lead to liver cirrhosis and liver cancer. Diagnosis :To diagnose Hepatitis B, the following laboratory tests are conducted: HBsAg: Hepatitis B surface antigen, indicates the presence of the disease. Anti-HBc: Indicates either acute or past infection. HBV DNA: Measures the amount ofvirus intheblood. Liverenzymes (ALT, AST) –usedto assess liver damage. Treatment: In the acute form of Hepatitis B, no specific antiviral treatment is required, and symptomatic support is provided to patients. In the chronic form, the following medications areused to suppress thevirus: Interferons (Peg-IFN) Nucleoside and nucleotide analogs (Entecavir, Tenofovir) Patients with chronic Hepatitis B should be regularly monitored under medical supervision. The most effective way to prevent Hepatitis B is vaccination. It is recommended that all newborns and individuals in high-risk groups receive the HBV vaccine. Additional preventive measures include: Reducing the risk of bloodborne transmission Protected sexual intercourse Following personal hygienerules Hepatitis B is a serious disease with a high risk of progressing to chronic form. However, it can be prevented as effective vaccines are available. Timely diagnosis and appropriate treatment can reducetheseverity ofcomplications associated with thedisease. 98,7:ROTCAFTCAPMI.SECNEICS LACIDEM,5202, yraurbeF,5emuloV gro.srehsilbupcimedaca.www HepatitisC Hepatitis C is a viral disease that damages the liver, caused by the Hepatitis C Virus (HCV). The disease is primarily transmitted through blood and has a very high potential to progress to a chronic form. Hepatitis C can develop silently in the human body for years, ultimately leading to liver cirrhosis and liver cancer. According to the World Health Organization (WHO), more than 58 million people worldwide are infected with this virus, with 1.5 millionnew cases diagnosed each year. Howishepatitis Ctransmitted? HCV is mainly transmitted through blood, and the following factors increase the risk of infection: Use of non-sterilized needles and medical instruments (injections, dental procedures, tattoos, andpiercings) Blood transfusions or organ transplants (if thedonoris a virus carrier) Injecting drugs Sexual contact (rare, but risk exists) Perinatal transmission from mother to child The virus can also spread through household items(toothbrushes, razors, nail clippers), butthis israre. HepatitisC infection can develop ineither anacute orchronicform: Acute hepatitisC develops wi