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Coronary Polyarteritis Nodosa: Clinical Dilemmas in Diagnosis and Management
Batool Jamal AbuHalimeh1, Stefan Sanger1, Laszlo Gobolos1
1Heart, Vascular and Thoracic Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, UAE.
Insights
Polyarteritis nodosa (PAN) involving the coronary arteries requires aggressive immunotherapy and cardiovascular risk management. A multidisciplinary approach is crucial for optimizing patient outcomes in this rare condition.
Area of Science:
- Cardiovascular Medicine
- Rheumatology
- Immunology
Background:
- Polyarteritis nodosa (PAN) is a systemic vasculitis that can affect the coronary arteries, leading to severe cardiovascular complications.
- Coronary involvement in PAN is rare but carries a high risk of morbidity and mortality.
Observation:
- A 43-year-old woman presented with complex coronary artery abnormalities, including irregularities, triple-vessel stenosis, aneurysmal dilatation, and collateral formation.
- The patient was diagnosed with polyarteritis nodosa (PAN) with significant coronary artery involvement.
Findings:
- Treatment involved aggressive immunotherapy with high-dose corticosteroids, mycophenolate, and rituximab to control systemic inflammation.
- Antithrombotic therapy, statins, ACE inhibitors, and smoking cessation were initiated for cardiovascular risk management.
- Despite triple-vessel disease, surgical intervention was deferred due to patient stability, with medical management leading to symptomatic improvement.
Implications:
- Coronary PAN necessitates a comprehensive, multidisciplinary approach for accurate diagnosis and effective management.
- Medical therapy, including immunotherapy and cardiovascular risk reduction, is the cornerstone of treatment, with surgical options reserved for select cases.
Clinical Conditions:
A 43-year-old woman presented with multiple coronary vascular wall irregularities, triple-vessel segmental stenosis, coronary aneurysmal dilatation, and coronary collateral arteries. She was diagnosed with polyarteritis nodosa (PAN) with coronary involvement.
Key Questions:
What is the approach of management for coronary PAN? What role does a multidisciplinary approach play in optimizing the management and outcomes of patients with coronary PAN?
Outcomes:
The patient was treated with aggressive immunotherapy, including high-dose corticosteroids, mycophenolate, and later rituximab, to control inflammation and prevent vascular damage. Antithrombotic therapy (clopidogrel and rivaroxaban) and cardiovascular risk factor management (statins, angiotensin-converting enzyme inhibitors, and smoking cessation) were initiated. Although coronary artery bypass graft was considered because of triple-vessel disease, it was deferred as the patient remained stable. Regular follow-up demonstrated symptomatic improvement.
Take-Home Messages:
Coronary PAN requires a multidisciplinary approach for diagnosis and management. Medical therapy often takes precedence, with surgical interventions reserved for selected cases.
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