To differentiate restrictive cardiomypathy and constrictive pericarditis, features ouring constrictive pericarditis are-
Ref: Harrison's 19th E pg 1573 Table 288-2. Thickened pericardium seen in constrictive pericarditis. Because constrictive pericarditis can be corrected surgically, it is impoant to distinguish chronic constrictive pericarditis from restrictive cardiomyopathy, which has a similar physiologic abnormality (i.e., restriction of ventricular filling).
C.V.S
Diastolic pressures are not equalised
There is mild pericardial effusion
Associated with septal hyperophy
Thick pericardium is present
Thick pericardium is present