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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]
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]
In particular, restrictive cardiomyopathy has many similar clinical features to constrictive pericarditis, and differentiating them in a particular individual is often a diagnostic dilemma. [ 10 ] Chest X-Ray - pericardial calcification (common but not specific), pleural effusions are common findings.
Treatment for restrictive cardiomyopathy will be to treat the underlying cause, if possible. For example, treating hemochromatosis by removing excess iron. In many cases though, the definitive treatment is heart transplant. SUMMARY All right, so, as a quick recap… Restrictive cardiomyopathy is when the heart muscles become stiff and less ...
Cardiomyopathy – Cardiomyopathy is a deterioration of the myocardium. Several classifications have been used to categorize cardiomyopathies with the most common being primary vs. secondary, and dilated vs. restrictive vs. hypertrophic (presented below).
Hypertrophic cardiomyopathy (HCM, or HOCM when obstructive) is a condition in which muscle tissues of the heart become thickened without an obvious cause. [8] The parts of the heart most commonly affected are the interventricular septum and the ventricles. [10]
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 ...
A cardiomyopathy is a weakness in the myocardium (muscle of the heart). This can be either an impairment in the contractile function of the muscle ( systolic dysfunction) or an impairment in the ability of the muscle to relax ( diastolic dysfunction).