Bottom line: Fulminant myocarditis may be associated with a better prognosis than patients with acute myocarditis.
Summary: McCarthy RE, et al. Long-term outcome of fulminant myocarditis as compared with acute (nonfulminant) myocarditis. N Engl J Med. 2000 Mar 9;342(10):690-5.
Study of 147 patients, all with biopsy-confirmed myocarditis. Fulminant myocarditis was observed in 15 (10%) of the patients based on clinical findings, such as presence of severe hemodynamic compromise, rapid onset of symptoms, and fever. Patients followed for average of 5.6 years. RESULTS: Among patients with fulminant myocarditis, 93% were alive without heart transplant 10 years after biopsy compared to 45% of the patients with acute myocarditis.