Is seen when the heart heart is restricted in its ability to fill with blood and stretch appropriately.
It is the least common cardiomyopathy
The heartbeat can be the same – the amount of blood leaving the heart is decreased
When this continues for a period of time – it can lead to heart failure
Causes:
  •   Amyloidosis
  •   Scleroderma
  •   Severe fibrosis of heart
  •   Others
Echocardiography can be helpful
Treatment
•       Diuretics
•       Aldosterone antagonists
•       Digoxin Digoxin
•       Beta-Blockers
•       Corticosteroids in some cases