tailieunhanh - Management of acute viral hepatitis

Document introduction of content: Definition Introduction and key points ,acute hepatitis A, acute hepatitis B, acute hepatitis C, acute hepatitis B, acute hepatitis E, references, useful websites, queries and feedback. | WGO Practice Guidelines Acute viral hepatitis 1 World Gastroenterology Organisation Practice Guidelines Management of acute viral hepatitis December 2003 Review team Prof. J. Heathcote Chair IASL Prof. A. Elewaut WGO Prof. S. Fedail WGO Prof. A. Gangl WGO Prof. S. Hamid WGO Prof. M. Shah WGO Dr. D. Lavanchy WHO Dr. H. Liu WGO Dr. J. Krabshuis WGO Contents 1 Definition 2 Introduction and key points 3 Acute hepatitis A 4 Acute hepatitis B 5 Acute hepatitis C 6 Acute hepatitis D 7 Acute hepatitis E 8 References 9 Useful web sites 10 Queries and feedback 1 Definition Acute viral hepatitis AVH is a systemic infection predominantly affecting the liver. It is most often caused by viruses that are hepatotropic hepatitis A B C D and E . Other viral infections may also occasionally affect the liver such as cytomegalovirus CMV herpes simplex coxsackievirus and adenovirus. Whereas hepatitis A and E are self-limiting infection with hepatitis C and to a lesser extent hepatitis B usually become chronic. World Gastroenterology Organisation 2007 WGO Practice Guidelines Acute viral hepatitis 2 2 Introduction and key points Possibly the key difference between this World Gastroenterology Organisation WGO guideline and other publications on acute viral hepatitis is an awareness of the potential for mismanagement. After all the single most important issue in the management of acute viral hepatitis is that in the great majority of cases treatment should be supportive and does not require hospitalization or medication. Surgical intervention during the acute state or because of misdiagnosis may be dangerous. Anecdotal evidence suggests there is often mismanagement of this condition especially in poorly resourced settings. Whereas most acute infections are asymptomatic when symptoms are present they appear to be similar for all five types of virus. It is important to establish which virus is involved as the risks of progression differ Hepatitis A self-limiting. The rate of fulminant hepatic