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Genetic Analysis of Hereditary Transthyretin Ala97Ser Related Amyloidosis
Published on: June 9, 2018
Cardiac amyloidosis: The great masquerader
Jubran Rind1, Nagib Chalfoun1, Richard McNamara2
1Michigan State University School of Human Medicine.
Insights
Cardiac amyloidosis can mimic hypertrophic cardiomyopathy, leading to misdiagnosis. Cardiac MRI and ECG are crucial for accurate diagnosis, differentiating amyloidosis from other cardiomyopathies and guiding treatment.
Area of Science:
- Cardiology
- Cardiovascular Imaging
Background:
- Cardiac amyloidosis often presents with left ventricular hypertrophy (LVH), mimicking other cardiac conditions.
- Echocardiographic findings in cardiac amyloidosis can resemble hypertrophic cardiomyopathy (HCM), including asymmetric septal hypertrophy and outflow tract obstruction.
Observation:
- A 76-year-old male patient presented with cardiomyopathy exhibiting echocardiographic features suggestive of asymmetric HCM.
- The patient's presentation highlighted the diagnostic challenge posed by overlapping clinical and imaging findings.
Findings:
- Cardiac magnetic resonance imaging (MRI) and electrocardiography (ECG) were instrumental in correctly diagnosing cardiac amyloidosis.
- These advanced imaging and diagnostic tools differentiated amyloidosis from HCM in this complex case.
Implications:
- Accurate differentiation of cardiac amyloidosis from HCM is critical for appropriate patient management.
- Timely diagnosis through advanced imaging influences treatment strategies and patient outcomes in cardiovascular disease.
Abstract:
Cardiac amyloidosis is an elusive condition that is notorious for mimicking various cardiovascular conditions that present with left ventricular hypertrophy (LVH). The hypertrophy in amyloidosis is typically diffuse; however, rare reports of echocardiographic resemblances with hypertrophic cardiomyopathy (HCM) exist, such as asymmetric septal hypertrophy and left ventricular outflow tract obstruction. Cardiac MRI can help differentiate amyloidosis from hypertrophic cardiomyopathy in unclear situations. This differentiation from HCM and other forms of cardiomyopathy has important treatment implications. Here we present the case of a 76-year-old man with cardiomyopathy who had echocardiographic features of asymmetric hypertrophic cardiomyopathy but was correctly diagnosed with amyloidosis with the help of cardiac MRI and ECG.
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