Due to its recent establishment as a diagnosis, and it being unclassified as a cardiomyopathy according to the WHO, it is not fully understood how common the condition is. Some reports suggest that it is in the order of 0.12 cases per 100,000. The low number of reported cases though is due to the lack of any large population studies into the disease and have been based primarily upon patients suffering from advanced heart failure. A similar situation occurred with hypertrophic cardiomyopathy, which was initially considered very rare; however is now thought to occur in one in every 200 to 500 people in the population, depending on the population. Again due to this condition being established as a diagnosis recently, there are ongoing discussions as to its nature, and to various points such as the ratio of compacted to non-compacted at different age stages. However it is universally understood that<unk>  will be characterized anatomically by deep trabeculations in the ventricular wall, which define recesses communicating with the main ventricular chamber. Major clinical correlates include systolic and diastolic dysfunction, associated at times with systemic embolic events.
Noncompaction cardiomyopathy
Hypertrophic cardiomyopathy
Amyloid cardiomyopathy
Restrictive cardiomyopathy
Arrhythmogenic cardiomyopathy
Ischemic cardiomyopathy
Dilated cardiomyopathy
Alcoholic cardiomyopathy