Overview
Definition
Genetic disorder characterized by unexplained left ventricular hypertrophy.
Epidemiology
Prevalence 1 in 500. Most common cause of sudden cardiac death in young athletes.
Etiology & Risk Factors
- Autosomal dominant mutations in sarcomere genes (e.g., MYH7, MYBPC3)
Clinical Symptoms
- Syncope with exertion
- Angina
- Palpitations
- Harsh systolic murmur
Clinical Approach
Diagnosis
- Echocardiogram
- ECG
- Genetic testing
Management
- Beta-blockers
- Avoid strenuous exercise
- ICD placement
- Myectomy
Complications
- Sudden cardiac death
- Heart failure
- Atrial fibrillation