[Cardiac involvement in dystrophinopathies]

Area of Science:

• Cardiology
• Genetics
• Neurology

Background:

• Dystrophinopathies are genetic disorders affecting muscle, often leading to cardiac complications.
• Dilated cardiomyopathy, impaired ejection fraction, heart failure, and arrhythmias are known cardiac manifestations.
• Prevalence varies: highest in Duchenne muscular dystrophy, intermediate in Becker dystrophy, and lower in female carriers.

Purpose of the Study:

• To highlight the cardiac implications of dystrophinopathies.
• To emphasize the need for systematic cardiac surveillance in affected individuals.
• To outline current treatment strategies for dystrophinopathy-associated cardiac conditions.

Main Methods:

• Review of existing literature on dystrophinopathies and cardiac involvement.
• Analysis of prevalence data across different dystrophinopathy types and carriers.
• Discussion of diagnostic tools (ECG, echocardiography) and treatment guidelines.

Main Results:

• Cardiomyopathy is highly prevalent in Duchenne muscular dystrophy and present in Becker dystrophy.
• Cardiac abnormalities necessitate regular follow-up, at least annually for high-risk patients.
• Early diagnosis via systematic cardiac workups enables prompt and effective treatment.

Conclusions:

• Cardiac follow-up is essential for all patients with dystrophin gene mutations.
• Timely intervention with treatments like ACE inhibitors can mitigate cardiac damage.
• Proactive cardiac management is key to improving outcomes in dystrophinopathies.