The Role of Strain in the Prognosis of Transthyretin Amyloidosis

Abstract

Transthyretin amyloidosis (TTRA) is a systemic infiltrative disease where cardiac involvement is paramount for prognosis. The strain technique plays a crucial role in non-invasive cardiac screening for this condition. Research on the prognostic utility of cardiac deformation in TTRA indicates the significance of right ventricular (RV) free wall strain, global longitudinal strain (GLS), left and right atrium reservoir strain, in descending order of publication, respectively. The GLS has emerged as a promising tool for therapeutic monitoring. Analyzing myocardial deformation is vital due to its incremental value over other clinical, laboratory, and imaging parameters. However, caution is warranted due to limited data on its prognostic and therapeutic monitoring use in TTRA. Despite the strong rationale for employing myocardial deformation in patient stratification, further robust studies are necessary to establish it as a new prognostic marker in TTRA.