title: Hepatitis E superinfection produces severe decompensation in patients with chronic liver disease.
abstract: OBJECTIVE
  The adverse effect of acute hepatitis A in chronic liver disease is well known. The outcome of acute hepatitis E in chronic liver disease has not been extensively studied. The present study aimed to examine the clinical profile and outcome of patients with chronic liver disease and hepatitis E virus (HEV) superinfection, and the seroprevalence of hepatitis A and E infections in patients with chronic liver disease and controls in India.
  
  
  METHODS
  A retrospective study of patients with chronic liver disease and acute icteric hepatitis E was performed. Acute hepatitis E was diagnosed by immunoglobulin (Ig)M ELISA. Seroprevalence studies were carried out using IgG ELISA in 100 patients with chronic liver disease and 79 age- and sex-matched controls.
  
  
  RESULTS
  From June 2001 to December 2002, nine patients with chronic liver disease were found to have superinfection with HEV. Out of these, six patients died of advanced liver failure. The etiology of liver disease was Wilson's disease in six, hepatitis B virus in one, autoimmune in one and cryptogenic in one case. The seroprevalence of hepatitis A was 99 and 100% and 56 and 21% for HEV in cases and controls, respectively.
  
  
  CONCLUSIONS
  Acute HEV in patients with chronic liver disease has a grave prognosis. Wilson's disease was the most common cause of chronic liver disease complicated by acute HEV. Seroprevalence studies showed that 44% of patients with chronic liver disease were at risk of developing hepatitis E. Hepatitis E vaccine, when available, is indicated for use in this group.
authors.affiliation: Departments of Gastrointestinal Sciences and Clinical Virology, Christian Medical College, Vellore, Tamilnadu, India.
authors.forename: Jeyamani
authors.initials: J
authors.lastname: Ramachandran
authors.forename: C E
authors.initials: CE
authors.lastname: Eapen
authors.forename: Gagandeep
authors.initials: G
authors.lastname: Kang
authors.forename: Priya
authors.initials: P
authors.lastname: Abraham
authors.forename: Darius D J
authors.initials: DD
authors.lastname: Hubert
authors.forename: George
authors.initials: G
authors.lastname: Kurian
authors.forename: Julie
authors.initials: J
authors.lastname: Hephzibah
authors.forename: Ashis
authors.initials: A
authors.lastname: Mukhopadhya
authors.forename: George M
authors.initials: GM
authors.lastname: Chandy
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D000914:Antibodies, Viral / Q000097:blood; D002648:Child; D002908:Chronic Disease; D005260:Female; D006506:Hepatitis A / Q000150:complications; D016751:Hepatitis E / Q000150:complications* / Q000175:diagnosis; D016752:Hepatitis E virus / Q000302:isolation & purification; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood; D008107:Liver Diseases / Q000503:physiopathology / Q000821:virology*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D015163:Superinfection / Q000150:complications* / Q000503:physiopathology
chemical_list: D000914:Antibodies, Viral; D007074:Immunoglobulin G