Treatment of Dressler's Syndrome
Treat Dressler's syndrome with aspirin plus colchicine as the recommended first-line therapy, following the same anti-inflammatory treatment approach used for acute pericarditis 1.
Treatment Algorithm
First-Line Therapy
The 2015 ESC Guidelines explicitly state that "diagnosis and treatment are similar to that generally recommended for PCIS" (post-cardiac injury syndromes), and "the same therapeutic scheme adopted for pericarditis is efficacious for all these forms, including post-myocardial infarction pericarditis" 1.
The recommended regimen consists of:
- Aspirin: Doses up to 1.5 g/day (antiplatelet effects demonstrated at this dose) 1
- Colchicine: Added to aspirin for improved remission rates and reduced recurrence risk 1
Clinical Context and Rationale
Dressler's syndrome is now rare (<1% incidence) in the primary PCI era, typically occurring 1-2 weeks post-MI and reflecting larger infarct size or late reperfusion 1. The immune-mediated pathogenesis—supported by the latent period of several weeks and response to anti-inflammatory drugs—justifies this treatment approach 1.
Important Caveats for Post-PCI Patients
A critical pitfall exists for patients who recently underwent coronary stenting. While guidelines recommend aspirin-based therapy from the pre-PCI era, recent case evidence 2 highlights legitimate concerns about bleeding and thrombotic complications when using high-dose aspirin in patients on dual antiplatelet therapy plus anticoagulation. In such cases, colchicine 0.5 mg/day plus acetaminophen 2000 mg/day has been successfully used as an alternative 2.
Treatment Duration and Monitoring
Most cases are self-limited and respond well to short courses of anti-inflammatory therapy 3, 4. One case demonstrated complete resolution with 7 days of ibuprofen 3, while another showed improvement with a short course followed by maintenance colchicine and aspirin 4.
When to Consider Alternative Approaches
- NSAIDs alone may be used (as demonstrated with ibuprofen 3), though the guideline-recommended combination of aspirin plus colchicine is preferred
- Corticosteroids are mentioned as responsive agents 1 and have been used successfully (e.g., 2-week steroid course 5, prednisolone 6), but should be reserved for refractory cases given potential complications
- Supportive care alone may suffice for mild, self-limited cases 1
Essential Diagnostic Confirmation
Before initiating treatment, confirm the diagnosis requires at least 2 of 5 criteria: fever without alternative cause, pericarditic/pleuritic chest pain, pericardial/pleural rubs, pericardial effusion, or pleural effusion with elevated CRP 1. Echocardiography is mandatory to evaluate for pericardial effusion, and effusions >10 mm thickness require investigation for possible subacute rupture 1.
Prognosis
The prognosis is generally good with appropriate treatment 1. In-hospital and 1-year mortality rates are similar in patients with and without post-MI pericarditis, though it remains a marker of larger infarct size 1.