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Restrictive cardiomyopathy (RCM) is a form of cardiomyopathy in which the walls of the heart are rigid (but not thickened). [2] [3] Thus the heart is restricted from stretching and filling with blood properly. It is the least common of the three original subtypes of cardiomyopathy: hypertrophic, dilated, and restrictive. [1]
So restrictive cardiomyopathy causes heart failure, and since filling happens during diastole, we say this is a type of diastolic heart failure. Now several mechanisms can lead to stiffer heart muscles and restrictive cardiomyopathies. One of these is amyloidosis.
Dilated cardiomyopathy may also result from alcohol, heavy metals, coronary artery disease, cocaine use, and viral infections. [4] Restrictive cardiomyopathy may be caused by amyloidosis, hemochromatosis, and some cancer treatments. [4] Broken heart syndrome is caused by extreme emotional or physical stress. [3]
Restrictive cardiomyopathy. Restrictive cardiomyopathy is when the chambers in your heart become overly stiff over time. This stiffness makes it difficult for your heart to fill with blood ...
The differential diagnoses of Kussmaul's sign includes constrictive pericarditis, restrictive cardiomyopathy, pericardial effusion, and severe right-sided heart failure. [ citation needed ] With cardiac tamponade , jugular veins are distended and typically show a prominent x descent and an absent y descent as opposed to patients with ...
Causes of isolated right ventricular diastolic failure are uncommon. These causes include: [citation needed] Constrictive pericarditis; Restrictive cardiomyopathy, which includes Amyloidosis (most common restrictive), Sarcoidosis and fibrosis.
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