Primary Carnitine Deficiency as a Treatable Cause of Heart Failure in Young Patients

Area of Science:

• Cardiology
• Metabolic Disorders
• Genetics

Background:

• Non-ischemic dilated cardiomyopathy is a common cause of heart failure in young adults, often presumed idiopathic.
• Metabolic defects are potential underlying etiologies in these patients.

Observation:

• Primary carnitine deficiency is an inherited metabolic disease that can lead to cardiomyopathy.
• This case report details the diagnosis and successful treatment of primary carnitine deficiency in an index patient and his brother.

Findings:

• Oral carnitine replacement therapy is an effective treatment for primary carnitine deficiency.
• Carnitine therapy can halt the progression of heart failure and prevent life-threatening arrhythmias.

Implications:

• Highlights primary carnitine deficiency as a treatable cause of heart failure in young adults.
• Emphasizes the importance of considering inherited metabolic disorders in the etiology of unexplained cardiomyopathy.
• Suggests early screening and intervention for primary carnitine deficiency can improve patient outcomes.