Abstract
Left ventricular (LV) hypertrophy is the hallmark of cardiac involvement in Fabry disease (FD). However, its pathogenesis is not clearly understood as pathologic substrate accumulation represents only 1-2% of the total cardiac mass. Abnormal myocardial energy metabolism has been previously demonstrated in different forms of cardiomyopathies. We hypothesized that myocardial energy status at the time of diagnosis could have a relationship to gain of LV mass in FD. In the group of 16 affected subjects, the indicators of energetic state of cardiac muscle determined by magnetic resonance spectroscopy showed significant negative correlation with annual increase in LV mass, evaluated during long-term follow-up (8 ± 3 years). Myocardial energy metabolism may therefore represent one of the mechanisms contributing to development of FD-related cardiomyopathy.
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