['duchenne muscular dystrophy']
['eplerenone', 'spironolactone']

        Inclusion Criteria:

          -  Boys age ≥7 years with DMD confirmed clinically and by mutation analysis able to
             undergo cardiac magnetic resonance (CMR) without sedation

          -  LV EF ≥45% (+/-5%) by clinically-acquired echocardiography, nuclear scan or cardiac
             MRI done within 2 weeks of enrollment

        Exclusion Criteria:

          -  Non-MR compatible implants

          -  Severe claustrophobia

          -  Gadolinium contrast allergy

          -  Kidney disease

          -  Prior use of or allergy to aldosterone antagonist

          -  Use of other investigational therapy.
      