Case Report

Scintigraphic non-invasive diagnosis of amyloid cardiomyopathy

Laroussi Mohamed-Salem*, Tomás E Rodríguez-Locarno, Tatiana Moreno-Monsalve, Isabel Castellón-Sánchez, José F Contreras-Gutiérrez and Antonia Claver-Valderas

Published: 04 October, 2019 | Volume 4 - Issue 3 | Pages: 156-158

Amyloidosis encompasses a heterogeneous group of disorders, characterized by extracellular deposition of insoluble abnormal amyloid aggregates, due to a failure in protein quality control. Cardiac amyloidosis is a disorder in which proteins misfold and deposit as amyloid fibrils that infiltrate the myocardial extracellular space [1].

Transthyretin (ATTR) and light chain (AL) are the most frequent types of cardiac amyloidosis. Transthyretin is a protein mainly synthesized by the liver, it may be hereditary or acquired from either wild-type (ATTRwt) or mutant (ATTRm) amyloid [2]. Cardiomyopathy is a common manifestation of ATTR amyloidosis with a particularly poor life expectancy of 2 to 6 years after diagnosis [3]. Although considered rare, the prevalence of this serious disease is likely underestimated because symptoms can be non-specific, and diagnosis largely relies on amyloid detection in tissue biopsies.

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Computed tomography; DM; Coronary artery; Atherosclerosis


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