Consider if CHF but no evidence of cardiomegaly or systolic dysfunction
ECG
Typically nonspecific ST/TW abnormalities
Other features may include low voltage, pathologic Q waves, LVH, AV block
Typically nonspecific ST/TW abnormalities
Other features may include low voltage, pathologic Q waves, LVH, AV block
showing ST-segment and T-wave abnormalities
CXR- heart typically normally sized, though can be enlarged in advanced stages of some underlying disease processes
Echocardiography
Normal LVEF
Elevated LV filling pressures, impaired longitudinal contraction
+/- dilated atria, myocardial hypertrophy
Definitive diagnosis may require MRI, catheterization, biopsy
Normal LVEF
Elevated LV filling pressures, impaired longitudinal contraction
+/- dilated atria, myocardial hypertrophy
Restrictive cardiomyopathy
Dilated cardiomyopathy
Hypertrophic cardiomyopathy
Acute rheumatic fever
Peripartum cardiomyopathy
Amyloidosis
Takotsubo cardiomyopathy
Constrictive pericarditis