Dilated cardiomyopathy (DCM) is characterized by a metabolic shift from fat to carbohydrates and failure to increase myocardial glucose uptake in response to workload increments. The investigators aimed at verifying whether this pattern is influenced by the presence of abnormal glucose tolerance (AGT).
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Myocardial metabolic responses to stress in humans
Timeframe: Arterio-venous sampling will be performed in about an hour during three experimental condition: rest (time -15 and 0 min), pacing (3 and 6 min), and recovery (1, 5, 15 and 30 min).