Brady’s group offers a nice review in this month’s AmJEM.

Key excerpts:

“Clinical factors suggesting a diagnosis of myocarditis in individuals with ST-segment and T-wave abnormalities include a younger patient age (younger than 40 years), complaint of recent viral illness, slowly evolving ECG changes involving more than one vascular distribution, and diffuse?rather than focal?wall motion abnormalities on echocardiogram.”

“In a study of 137 patients with endocarditis diagnosed via the Duke criteria, 50% had AV block and 61% had intraventricular block, with overlap between the 2 groups.”

Punja et al, Electrocardiographic manifestations of cardiac infectious-inflammatory disorders. American Journal of Emergency Medicine (2010) 28, 364-377.