Restrictive cardiomyopathy, the rarest form of cardiomyopathy, is a condition in which the walls of the lower chambers of the heart (the ventricles) are abnormally rigid and lack the flexibility to expand as the ventricles fill with blood.
The pumping or systolic function of the ventricle may be normal, but the diastolic function (the ability of the heart to fill with blood) is abnormal. Therefore, it is harder for the ventricles to fill with blood, and with time, the heart loses the ability to pump blood properly, leading to heart failure.
For someone with heart disease, diet is a big deal. Along with other healthy habits, it can slow or even partially reverse the narrowing of the heart's arteries and help prevent further complications.
You can help a loved one who has heart disease by adopting a diet that curbs LDL (''bad'') cholesterol, lowers blood pressure, lowers blood sugar, and helps with weight loss.
The best strategy: Focus on what the person with heart disease can eat, not just what's off-limits. Research shows that adding...
The size of the heart may remain normal with restrictive cardiomyopathy. In some cases, restrictive cardiomyopathy may be confused with constrictive pericarditis, a condition in which the layers of the pericardium (the sac that surrounds the heart) become thickened, calcified, and stiff.
A myocardial biopsy, or biopsy of the heart muscle, occasionally is done to determine the cause of cardiomyopathy. During a myocardial biopsy, a small tissue sample is taken from the heart and examined under a microscope to examine the cause of the symptoms.