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Churg-Strauss syndrome complicated by eosinophilic endomyocarditis
G Ramakrishna1, H M Connolly, H D Tazelaar
1Department of Internal Medicine, Mayo Clinic, Rochester, Minn 55905, USA.
Mayo Clinic Proceedings
|June 14, 2000
Summary
Churg-Strauss syndrome, a rare condition, can cause dangerous blood clots in the heart, especially in asthma patients with eosinophilic endomyocarditis. Early cardiac evaluation is crucial for managing this severe complication.
Area of Science:
- Cardiology
- Rheumatology
- Neurology
Background:
- Churg-Strauss syndrome (CSS), also known as eosinophilic granulomatosis with polyangiitis (EGPA), is a rare systemic vasculitis.
- CSS typically affects the respiratory tract and can lead to eosinophilic infiltration of various organs.
- Cardiac involvement in CSS, particularly eosinophilic endomyocarditis, is associated with significant morbidity and mortality.
Observation:
- A 34-year-old asthmatic woman presented with dyspnea and mononeuritis multiplex.
- Physical examination revealed signs of heart failure and hepatomegaly.
- Laboratory tests showed marked eosinophilia, and echocardiography identified a large right ventricular thrombus encasing the tricuspid valve.
Findings:
- Despite corticosteroid treatment, the thrombus persisted, necessitating right ventricular thrombectomy.
- Skin biopsy confirmed extravascular palisading granulomas, consistent with Churg-Strauss syndrome.
- This case highlights thrombotic complications secondary to eosinophilic endomyocarditis in Churg-Strauss syndrome.
Implications:
- Churg-Strauss syndrome should be considered in asthmatic patients with unexplained dyspnea, eosinophilia, and neuropathy.
- Prompt cardiac evaluation, including echocardiography, is essential for early detection of cardiac involvement.
- Timely diagnosis and management of cardiac complications are critical for improving patient outcomes in Churg-Strauss syndrome.