Hypertrophic Cardiomyopathy (HCM)
Hypertrophic Cardiomyopathy (HCM)
Evaluation and Differential Diagnosis
Role of Echocardiography
William K. Freeman, MD, FACC, FASE
DISCLOSURES
Relevant Financial Relationship(s) None
Off Label Usage None
Hypertrophic Cardiomyopathy
Echocardiographic Diagnosis
Left Ventricular Hypertrophy 15 mm (Asymmetric >> Symmetric)
In the absence of another cardiovascular or systemic disease associated with LVH or myocardial wall thickening
Gersh, BJ, et al. JACC 2011; 58: e212 ACC/AHA Guidelines
Hypertrophic Cardiomyopathy
Echocardiographic Diagnosis
Not Mandatory for Diagnosis of HCM
? Asymmetric Septal Hypertrophy (ASH) ? Systolic Anterior Motion (SAM) ? Dynamic LVOT obstruction
Hypertrophic Cardiomyopathy
Distribution of LVH (600 Patients)
Anterior septum only
(25%)
Septum & ant lat freewall (17%)
Septum & all freewalls (17%)
Anterior and inferior septum
(31%)
Klues HG, JACC 1995; 26: 1699
Lateral freewall
(1%)
Anterior septum & ant lat freewall
(7%) Apex only
(2%)
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