Primary myopathies and the heart

Area of Science:

• Cardiology
• Neurology
• Genetics

Background:

• Myopathies are neuromuscular disorders that can extend beyond skeletal muscle.
• Cardiac involvement (CI) is a common and significant complication in many myopathy types.
• CI presents with a wide spectrum of cardiac abnormalities, impacting patient prognosis.

Purpose of the Study:

• To highlight the prevalence and diverse manifestations of cardiac involvement in myopathies.
• To emphasize the importance of early cardiological evaluation in myopathy patients.
• To underscore the availability of supportive cardiac therapies that improve outcomes.

Main Methods:

• Review of clinical manifestations and affected cardiac structures in various myopathies.
• Analysis of the spectrum of cardiac conditions associated with different muscular dystrophy types.
• Emphasis on diagnostic timing and therapeutic implications.

Main Results:

• Cardiac involvement occurs across a broad range of myopathies, including dystrophinopathies, laminopathies, and congenital myopathies.
• Manifestations include conduction defects, cardiomyopathies (hypertrophic, dilated), arrhythmias, and heart failure.
• Specific myopathies like dystrophinopathies and myotonic dystrophies have high rates of CI.

Conclusions:

• Cardiac involvement is a frequent and serious complication of myopathies, necessitating proactive cardiological assessment.
• Timely diagnosis and management of CI can significantly improve the long-term prognosis for myopathy patients.
• Integrated care involving neurologists and cardiologists is essential for optimal patient management.