Key Points
- To review the clinical presentation, diagnostic evaluation, and evidence-based therapeutic management of idiopathic giant cell myocarditis.
- Synthesized clinical literature regarding the immunopathology, clinical presentation, and prognosis of giant cell myocarditis.
- Evaluated noninvasive diagnostic imaging versus invasive myocardial tissue biopsy.
- Summarized outcomes associated with immunosuppressive medical therapy and heart transplantation.
- Noninvasive imaging detects disease in only a minority of patients, requiring endomyocardial biopsy for definitive tissue diagnosis in most cases.
- Early initiation of immunosuppressive therapy significantly improves clinical course and survival in young and middle-aged adults, whereas untreated disease is rapidly progressive and highly lethal.
Structured PICO
PPopulationYoung and middle-aged adults with suspected or diagnosed idiopathic giant cell myocarditis (GCM)
IInterventionDiagnostic approach (including noninvasive imaging and myocardial tissue diagnosis) and immunosuppressive treatment
Early diagnosis and immunosuppressive treatment are crucial for improving the clinical course and survival of patients with giant cell myocarditis.