Related Experiment Videos
The postpericardiotomy syndrome then and now
M A Engle1, W A Gay, M E Kaminsky
1Cornell University Medical College, New York.
Insights
Postpericardiotomy syndrome, a febrile illness after heart surgery, involves pericardial and pleural reactions. It
Area of Science:
- Cardiology
- Immunology
- Infectious Disease
Background:
- Postpericardiotomy syndrome (PPS) is a febrile illness characterized by pericardial and pleural reactions.
- It typically appears beyond the first postoperative week following intrapericardial cardiac surgery.
Purpose of the Study:
- To investigate the onset and underlying mechanisms of postpericardiotomy syndrome.
- To correlate clinical signs with specific immune markers and viral infections.
Main Methods:
- Observational study correlating clinical presentation with serological markers (AHA, AVA) and viral status.
- Hypothesis-driven analysis of immune response to myocardial damage and viral triggers.
Main Results:
- Clinical signs of PPS correlate with the appearance of anti-heart antibodies (AHA) and a rise in anti-viral antibodies (AVA).
- The syndrome is hypothesized to result from myocardial damage, pericardial bleeding, and concurrent viral illness.
Conclusions:
- The immune response in PPS targets virus-infected myocardium, not autologous tissue.
- Postpericardiotomy syndrome is generally self-limited, though recurrence is possible, with no lasting sequelae.
Abstract:
The postpericardiotomy syndrome is a febrile illness with pericardial and pleural reaction that either persists or appears beyond the 1st postoperative week. We believe that it begins in the 1st week after intrapericardial cardiac surgery, and that clinical signs of illness correlate with appearance of AHA and with significant rise in titer to AVA. Our present working hypothesis is that myocardial damage with bleeding into the pericardial sac at the time of surgery combines with concurrently acquired or reactivated viral illness to set the stage for the syndrome. The immune response is triggered by viral invasion of traumatized myocardium and an immune response is mounted, not against autologous myocardium per se but against the neo-antigen, the virus-infected myocardium. The illness is self-limited. It sometimes recurs but it seems to leave no sequelae other than the bad memory of a painful postoperative complication that prolonged hospitalization and delayed the realization of the full benefits of that heart operation.