Electrocardiography of myocarditis revisited: Clinical and prognostic significance of electrocardiographic changes

Cardiac and neuromuscular implications of left bundle branch block in left ventricular hypertrabeculation/noncompaction

“…It is also in contrast to epidemiological studies that found a worse prognosis when LBB was associated with dilated cardiomyopathy and myocarditis (22). This may be explained by the fact that LVHT patients with LBB responded well to cardiac therapy and, at least in some cases, to the cardiac resynchronization device (23).…”

Myocarditis-A Quick Review

“…20 The presence of Q waves or left bundle-branch block is associated with higher rates of death or cardiac transplantation. 21 Echocardiography is useful primarily to rule out other causes of heart failure, since there are no specific features of acute myocarditis. Echocardiographic patterns of dilated, hypertrophic, restrictive, and ischemic cardiomyopathies have been described in histologically proven myocarditis.…”

I Diretriz Brasileira de Miocardites e Pericardites

“…Usualmente esse exame possui uma sensibilidade diagnóstica de 47% 45 . Na fase aguda, as alterações mais comuns são os distúrbios de repolarização e bloqueios atrioventriculares, assim como padrão sugestivo de isquemia coronariana com infra ou supradesnível do segmento ST de região cardíaca específica ou difusa, sendo que a presença de onda Q indica pior prognóstico.…”