Cardiomyopathies are the group of diseases affecting the cardiac muscl
e. Although they have never been related to oxidative stress diseases,
an analysis of the causes of these pathologies reveals the presence o
f a pro-oxidative agent or that the intracardiocytic balance between o
xidation and antioxidation has been broken. In support of this hypothe
sis, we analyse the pro-oxidative factors which co-operate with other
factors or by themselves to promote the development of this group of p
athologies. We show also data demonstrating that the tissue and cellul
ar damages are characteristic of an oxidative stress situation. Finall
y, we present evidence that in some cases of particular cardiomyopathi
es, the use of antioxidative strategies greatly improves the health of
the patients. Therefore, we suggest that the use of antioxidants can
be an alternative or complementary therapy in this group of diseases.