Cardiovascular Involvement in mtDNA Disease: Diagnosis, Management, and Therapeutic Options

Area of Science:

• Genetics
• Cardiology
• Molecular Biology

Background:

• Mitochondrial diseases (MD) are a diverse group of systemic disorders.
• Caused by mutations in nuclear or mitochondrial DNA (mtDNA), leading to impaired oxidative phosphorylation.
• Cardiomyopathy, particularly hypertrophic cardiomyopathy, is a frequent complication.

Purpose of the Study:

• To review current clinical knowledge on mitochondrial diseases (MD).
• To focus on the diagnosis and management of MD caused by mtDNA mutations.
• To emphasize the cardiac manifestations of these disorders.

Main Methods:

• Literature review of current clinical knowledge.
• Focus on diagnostic criteria for MD.
• Discussion of management strategies for mtDNA-related MD.

Main Results:

• Hypertrophic cardiomyopathy is the predominant cardiac pattern in mtDNA disease (approx. 40% of patients).
• Other reported cardiac issues include dilated cardiomyopathy, left ventricular noncompaction, and conduction disturbances.
• The article synthesizes information on clinical presentation and genetic basis.

Conclusions:

• Mitochondrial diseases caused by mtDNA mutations require specific diagnostic and management approaches.
• Cardiac involvement, especially hypertrophic cardiomyopathy, is a significant feature of these conditions.
• Further research is needed to optimize patient care and outcomes for MD.