International Journal of Cardiovascular Sciences. 03/jun/2024;37:e20240047.

A Critical Review of Echocardiographic Findings for Diagnosing Cardiac Amyloidosis

Silvio Henrique Barberato , Adenalva Lima de Souza Beck , Viviane Tiemi Hotta , Daniela do Carmo Rassi

DOI: 10.36660/ijcs.20240047

Abstract

This article provides a critical review of the diagnostic value of several echocardiographic findings in cardiac amyloidosis (CA). The importance of early and accurate detection of CA is emphasized, considering its challenging diagnosis and the need for a high index of suspicion by clinicians. Echocardiography is often the first choice for imaging assessment of cardiac structure and function when CA is suspected. The article encompasses several conventional echocardiographic features and speckle-tracking echocardiography-derived deformation parameters. Some of these indexes are grouped together to form scores, which can improve the accuracy of diagnosing CA. However, particularly in earlier stages, echocardiography has low specificity to distinguish amyloid from other hypertrophic phenotypes, highlighting the need for correlation with clinical red flags, laboratory tests, and additional cardiac imaging modalities.