<Li> Restrictive cardiomyopathy, which includes Amyloidosis (most common restrictive), Sarcoidosis and fibrosis . </Li> <P> Diastolic failure appears when the ventricle cannot be filled properly because it cannot relax or because its wall is thick or rigid . This situation presents usually a concentric hypertrophy . In contrast, systolic heart failure has usually an eccentric hypertrophy . </P> <P> Diastolic failure is characterized by an elevated diastolic pressure in the left ventricle, despite an essentially normal / physiologic end diastolic volume (EDV). Histological evidence supporting diastolic dysfunction demonstrates ventricular hypertrophy, increased interstitial collagen deposition and infiltration of the myocardium . These influences collectively lead to a decrease in distensibility and elasticity (ability to stretch) of the myocardium . As a consequence, cardiac output becomes diminished . When the left ventricular diastolic pressure is elevated, venous pressure in lungs must also become elevated too: left ventricular stiffness makes it more difficult for blood to enter it from the left atrium . As a result, pressure rises in the atrium and is transmitted back to the pulmonary venous system, thereby increasing its hydrostatic pressure and promoting pulmonary edema . </P> <P> It may be misguided to classify the volume - overloaded heart as having diastolic dysfunction if it is behaving in a stiff and non-compliant manner . The term diastolic dysfunction should not be applied to the dilated heart . Dilated ("remodeled") hearts have increased volume relative to the amount of diastolic pressure, and therefore have increased (not decreased) distensibility . The term diastolic dysfunction is sometimes erroneously applied in this circumstance, when increased fluid volume retention causes the heart to be over-filled (High output cardiac failure). </P>

Where will failure of the left ventricle cause increased pressure