Korean J Hepatol.
1998 Dec;4(4):305-316.
Exacerbated Hepatitis Accompanied by Myositis in Patients with Chronic Liver Disease
-Suggestion of Coxsackievirus B as a Causative Agent
Abstract
OBJECTIVES
Our aims of this study is to analyze the clinical characteristics
and the prognos is of the disease which develops in patient swith chronic liver disease
as acutely exacerbated hepat it is accompanied by myosit is. Finally we try to identify
and is olate the causative agent.
METHODS
The patient swith chronic liver diseases, who developed muscle weakness
and paralysis, were classified to group A or group B, according to the level of
creatinine kinase ( CK) activity. The group A consists of patients with
less than 3-fold increase of normal CK activity and the group B includes patients
with over 3-fold increase of it. We evaluated clinical characteristics,
blood chemistry, clinical course, and causes of deathin patients of study groups,
compared with those of patients with chronic liver disease with normal CK activity as controls.
The causative agent was suggested by conventional culture and RT-PCR analysis
in two cases of group B.
RESULTS
1. There was no significant differences in age, sex, underlying disease,
or liver function test bet ween control and study group ( control and group A or B) before entry.
2. The clinical symptoms and signs , such as drowsy mental state, generalized weakness/myalgia
caused by hepatic encephalopathy and myositis , occurred frequently in the study group.
3. Significant elevation of aspartic acid transaminase (AST ) and alaninetr ans aminase
( ALT ) was noted in Group B. AST / ALT ratio is over 2 in group A or B.
Synthetic function of the liver such as prothrombin time ( PT ) or serum albumin level
is significantly decreased. Blood urea nitrogen ( BUN) and creatinine were increased
as a result of impaired renal function. 4. Culture of coxs ackievirus was positive by
immunofluor escence as say IFA) as a caus ative agent and also was positive in
reverse transcription-polymerase chain reaction (RT-PCR) analys is using universal
primer of enterovirus in two recent cases of group B.
5. Death rate increased significantly in study group, compared with that of control group
( 20.7% versus 5.6%). Major cause of death, 12 patients died of which, is hepatic failure.
CONCLUSION
The patients with chronic liver disease abruptly developed a exacerbated
hepaticdys function and muscle paralysis and/or weakness. This exacerbated hepatitis
accompanied by myositis was suggested to be caused by coxsackie B viral infection.
Furthermore, this infection increase deathrate and resulted in poor prognosis.
Thus, further study should be continue to confirm the causative agent and classify the subtype.