Related Experiment Videos
Large vessel arteritis associated with human herpesvirus 6 infections
1Niigata University School of Medicine, Niigata, Japan. toyabe@med.niigata-u.ac.jp
Clinical Rheumatology
|November 26, 2002
Summary
This study suggests human herpesvirus-6 (HHV-6) infection may cause chronic large vessel arteritis in infants. The findings link active HHV-6 replication to persistent inflammation mimicking Kawasaki syndrome.
Area of Science:
- Pediatric Rheumatology
- Infectious Diseases
- Vascular Biology
Background:
- Kawasaki syndrome is a leading cause of acquired heart disease in children, characterized by acute febrile vasculitis.
- Chronic arteritis of the aorta and its branches can lead to severe cardiovascular complications.
- The etiology of persistent or atypical Kawasaki disease remains incompletely understood.
Observation:
- A 9-month-old boy presented with prolonged fever and chronic arteritis, initially resembling Kawasaki syndrome.
- Despite immunosuppressive therapy, the patient exhibited persistent inflammation (high C-reactive protein) for 18 months.
- Laboratory findings included immune complex abnormalities and evidence of active human herpesvirus-6 (HHV-6) infection.
Findings:
- Active HHV-6 infection was confirmed by serological markers (IgG, IgM), viral DNA detection in blood and lymph nodes, and viral replication.
- HHV-6 replication was demonstrated in peripheral blood mononuclear cells and lymph node tissue.
- The patient's chronic arteritis and prolonged inflammatory markers were associated with active HHV-6 infection.
Implications:
- This case suggests a potential role for human herpesvirus-6 (HHV-6) in the pathogenesis of large vessel arteritis.
- HHV-6 may be an underrecognized trigger or contributor to persistent inflammation in pediatric vasculitis.
- Further research is warranted to explore the link between HHV-6 and pediatric arteritis, potentially impacting diagnostic and therapeutic strategies.