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.
Can you drink if you have heart disease? Moderate drinking should be OK, if your doctor approves, but you shouldn't count on alcohol to be a major part of your heart health plan.
"If you don’t drink alcohol now, there is no reason to start,” says Mark Urman, MD, a cardiologist at Cedars-Sinai Heart Institute in Los Angeles.
It's true that there have been studies linking drinking small amounts of alcohol -- no more than two drinks a day for men and one drink a day for women -- to better heart health...
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.