A Hemodynamic Echocardiographic Approach to Disease Severity and Prognosis in Transthyretin Amyloid Cardiomyopathy.
BACKGROUND Transthyretin amyloid cardiomyopathy (ATTR-CM) causes heart failure and poor outcomes. Prognostic stratification is fundamental, yet validated staging systems rely exclusively on biomarkers, neglecting structural and functional cardiac parameters. OBJECTIVES This study evaluates a noninvasive hemodynamic e...