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Published on: June 20, 2014
Postpericardiotomy syndrome in adults: incidence, autoimmunity and virology
Insights
Postpericardiotomy syndrome (PPS) affects 17.6% of adults, with incidence decreasing with age. This autoimmune condition may be triggered by viral illness, as indicated by heart-reactive and antiviral antibodies.
Area of Science:
- Immunology
- Virology
- Cardiology
Background:
- Postpericardiotomy syndrome (PPS) is a known complication following cardiac surgery.
- Previous studies focused on pediatric populations, necessitating investigation in adults.
Purpose of the Study:
- To investigate the immunologic and virologic aspects of PPS in an adult population.
- To determine the incidence and risk factors associated with PPS in adults.
Main Methods:
- A cohort of 142 adult patients undergoing cardiac surgery was studied.
- Incidence of PPS was recorded and analyzed based on age groups.
- Serologic testing was performed to detect heart-reactive and antiviral antibodies.
Main Results:
- The incidence of PPS in adults was 17.6%, lower than the 27.8% observed in children.
- PPS incidence decreased with increasing age, with the lowest rates in patients aged 70 and older.
- High titers of heart-reactive antibody were found in all PPS patients, and 68% showed a rise in antiviral antibodies.
Conclusions:
- PPS in adults appears to be an autoimmune phenomenon.
- Viral illness may act as a trigger for the development of PPS in adults.
- Age is a significant factor influencing PPS incidence in the adult population.
Abstract:
While continuing a study of immunologic and virologic aspects of the postpericardiotomy syndrome (PPS) in infants and children, we undertook a companion study in adults. Whereas the incidence in 119 children was 27.8%, as is usual for our hospital, the incidence in 142 adults was 17.6%. Most of the operations (95 of 142) were performed on patients who were 50-69 years old. Incidence decreased as age increased: 28.5% for ages less than 40 years, 19.7% for ages 40--59 years, 14.2% for ages 60--69 years, and 10% for ages 70 years and older. Heart-reactive antibody in high titer was found in all patients with PPS; a rise in antiviral antibody to one or more of a battery of eight common viruses (adenovirus, cytomegalovirus, and coxsackie-virus B 1 to 6) was identified in 68% of these with PPS but in only 5% of those without clinical manifestations. We conclude that in adults, as in children, PPS may be an autoimmune phenomenon triggered by viral illness.
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