Conclusions

The electrocardiographic manifestations of ARVC/D are highly variable depending upon the stage of the disease. In the concealed form, the ECG may be normal. When there is overt disease including congestive heart failure, there is an increasing incidence of ECG abnormalities. Both myocardial conduction abnormalities and repolarization abnormalities are important clinical findings which raise the suspicion of the presence of ARVC/D. There is a need for more studies to evaluate the progression of the disease and its ECG manifestations over a long period of time. At present there is no clear evidence for a specific association between known ARVC/D genes and ECG abnormalities. ECG abnormalities are generally related to the extent of myocardial changes, but clinical experience indicates that ECG changes may precede morphological and functional abnormalities of right ventricle.

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