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Open Access Unusual Cardiomyopathies: Some May Be More Usual Than Previously Thought and Simply Underdiagnosed

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Heart failure is the most common cause of hospitalization in the United States. Just as the prevalence of heart failure has increased, the number of diseases identified that result in the heart failure syndrome has escalated. Certain cardiomyopathies that have previously been regarded as very rare are being recognized with increasing frequency, because of improved imaging techniques and an increased understanding of the pathophysiologic mechanisms that result in these diseases. Improved echocardiographic techniques and methods such as spectral Doppler and 3D image rendering, along with the use of advanced diagnostic tools such as cardiac CT angiography and cardiac magnetic resonance imaging are now common. These advanced imaging methods have led to an increased appreciation of the frequency of diseases such as isolated left ventricular noncompaction and cardiac amyloidosis. Left ventricular noncompaction, once thought to occur in roughly one in one million patients, may actually be seen in fewer than one in 1000 patients. Cardiac amyloidosis, in the senile form, may exist in 80% of 80-year-old patients, although the incidence of clinical symptoms is less. As the genetic alterations that contribute to these diseases are further elucidated, improved diagnosis and a better understanding of the prognosis of these uncommon cardiomyopathies will follow.
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Keywords: cardiac amyloidosis; cardiomyopathy; heart failure; noncompaction

Document Type: Research Article

Publication date: October 1, 2015

More about this publication?
  • Cardiovascular Innovations and Applications (CVIA) publishes focused articles and original clinical research that explore novel developments in cardiovascular disease, effective control and rehabilitation in cardiovascular disease, and promote cardiovascular innovations and applications for the betterment of public health globally. The journal publishes basic research that has clinical applicability in order to promote timely communication of the latest insights relating to coronary artery disease, heart failure, hypertension, cardiac arrhythmia, prevention of cardiovascular disease with a heavy emphasis on risk factor modification. Cardiovascular Innovations and Applications is the official journal of the Great Wall International Congress of Cardiology (GW-ICC). It aims to continue the work of the GW-ICC by providing a global scientific communication platform for cardiologists that bridges East and West.

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