Medical Services related to William Floyd Armstrong MD

Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC)

Arrhythmogenic right ventricular cardiomyopathy is a rare inherited heart muscle condition that most often involves the right ventricle, which is the heart chamber responsible for pumping blood to the lungs. Individuals with ARVC may have symptoms of palpitations or fainting due to irregular heart rhythms (arrhythmias). Symptoms may also include shortness of breath due to reduced pumping function of the heart.


Comprehensive diagnostic testing is the first step to knowing if you have a heart problem and creating a treatment program that best suits your needs. At the University of Michigan Cardiovascular Center, we offer full-service diagnostics with the latest equipment and a credentialed staff so your tests are performed properly and read correctly, all with a quick turnaround.

Familial Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a heart muscle condition characterized by gradual weakening of the heart muscle. While DCM may be caused by other conditions, including myocardial infarction, many cases are now known to be caused by genetic mutations carried in families. Individuals with DCM may be only mildly affected or may be severely affected, even in the same family.

Hypertrophic Cardiomyopathy (HCM)

Hypertrophic cardiomyopathy (HCM) is a common genetic cardiac disorder affecting 1 in 500 people. It affects both men and women of all ages, and is characterized by abnormal thickening of the heart muscle.