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Becker muscular dystrophy presenting with complete heart block in the sixth decade
R Quinlivan1, J Ball, M Dunckley
1Department of Paediatric Neurology, Newcomen Centre, Guy's Hospital, London, UK.
Journal of Neurology
|June 1, 1995
Summary
Becker muscular dystrophy can affect the heart, often diagnosed after muscle weakness appears. This case highlights a patient with late-onset weakness and heart block diagnosed six years prior.
Area of Science:
- Cardiology
- Neurology
- Genetics
Background:
- Becker muscular dystrophy (BMD) is a genetic neuromuscular disorder.
- Cardiac involvement is a known complication of BMD, typically diagnosed after motor deficits emerge.
Observation:
- A patient presented with complete heart block 6 years before the onset of muscle weakness.
- The onset of muscle weakness in this patient was unusually late, occurring at 62 years of age.
Findings:
- This case suggests that cardiac abnormalities in BMD may precede clinical muscle weakness.
- The typical diagnostic timeline for BMD-related myocardial issues may not apply in all cases.
Implications:
- Early cardiac screening in individuals with suspected BMD, even before significant muscle weakness, may be warranted.
- This atypical presentation expands the understanding of BMD's clinical spectrum and cardiac manifestations.