Wild type transthyretin cardiac amyloidosis in a young individual: A case report.

Medicine (Baltimore)

Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Uttar Pradesh.

Published: April 2021

AI Article Synopsis

  • Senile systemic amyloidosis is typically linked to older adults due to amyloid buildup from wild-type transthyretin, often leading to misdiagnosis as normal aging.
  • A case study presents a 34-year-old man showing symptoms of this disease, including exertional dyspnea and a history of hypertension, challenging the assumption it's an age-related condition.
  • Diagnosis involved echocardiography and abdominal fat biopsy confirming amyloid deposits, and despite treatment for hypertension, the patient succumbed, highlighting the need for awareness of this condition in younger patients with unexplained cardiac issues.

Article Abstract

Rationale: Senile systemic amyloidosis, a disease of elderly is caused by amyloid deposition of wild-type transthyretin. The symptoms often overlap with other heart diseases. Hence it is either misdiagnosed or considered as a normal aging process in majority of cases.

Patient Concerns: We present a young patient of wild-type transthyretin amyloidosis, contradicting its only senile presence. The 34-year-old man presented with dyspnoea on exertion. He was suffering from hypertension for consecutive 3 years.

Diagnosis: Echocardiography demonstrated left ventricular hypertrophy with reduced global longitudinal strain and apical sparing. Congo red staining and immuno-histochemical staining of the abdominal fat biopsy confirmed transthyretin amyloid deposition. Genetic analysis revealed absence of any mutant variant/s of transthyretin gene, confirming wild-type transthyretin amyloidosis.

Intervention: A combination of amlodipine 5 mg, telmisartan 40 mg, and chlorthalidone 12.5 mg once daily was given to control the blood pressure of the patient.

Outcome: Blood pressure was controlled but he continued to have exertional dyspnoea. The patient expired in December 2019.

Lessons: A systematic diagnosis for wild type transthyretin amyloid cardiomyopathy (ATTR-CM) shall be considered in young cardiac patients suffering from cardiac distress with unknown etiology.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8084012PMC
http://dx.doi.org/10.1097/MD.0000000000025462DOI Listing

Publication Analysis

Top Keywords

wild-type transthyretin
12
wild type
8
type transthyretin
8
amyloid deposition
8
transthyretin amyloid
8
blood pressure
8
transthyretin
7
transthyretin cardiac
4
cardiac amyloidosis
4
amyloidosis young
4

Similar Publications

Hereditary transthyretin amyloidosis with polyneuropathy (ATTRv-PN) is a neurodegenerative disease caused by mutations in the gene encoding transthyretin (TTR). Despite amyloid deposition being pathognomonic for diagnosis, this pathology in nervous tissues cannot fully account for nerve degeneration, implying additional pathophysiology for neurodegeneration, which, however, has not yet been fully elucidated. In this study, neuroinflammation in ATTRv-PN was investigated by examining nerve morphometry, the blood-nerve barrier, and macrophage infiltration in the sural nerves of ATTRv-PN patients and the sciatic nerves of a complementary mouse system, i.

View Article and Find Full Text PDF

Cardiac denervation and morpho-functional changes, two sides of the same coin in wild-type transthyretin amyloid cardiomyopathy?

J Nucl Cardiol

January 2025

Nuclear Medicine Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Sant Quintí 89, F Block, Basement -2, 08041 Barcelona. Electronic address:

View Article and Find Full Text PDF

Myocardial Inflammation in Cardiac Transthyretin Amyloidosis: Prevalence and Potential Prognostic Implications.

Circ Heart Fail

January 2025

Department of Cardiology, Angiology and Intensive Care Medicine, Deutsches Herzzentrum der Charité, Berlin, Germany (M.L.M., U.L., B.H., D.M., A.B., I.M., S.S.).

Background: Despite previous histopathologic evidence for its presence, the role of myocardial inflammation in the development and progression of cardiac transthyretin amyloidosis (ATTR-CA) remains insufficiently understood. Thus, this study sought to characterize the prevalence and potential prognostic implications of myocardial inflammation in ATTR-CA.

Methods: A retrospective observational study including patients with ATTR-CA diagnosed by endomyocardial biopsy was conducted.

View Article and Find Full Text PDF

Cardiac amyloidosis (CA) is a progressive condition resulting from the deposition of amyloid fibrils in the heart, which leads to severe diastolic dysfunction and restrictive cardiomyopathy. The disease has two main subtypes: light-chain and transthyretin (TTR) CA, with the latter subdivided into wild-type and hereditary forms. Despite advances in diagnostic imaging, early detection remains a challenge due to non-specific symptoms that mimic other cardiac conditions.

View Article and Find Full Text PDF

Cardiac amyloidosis: when to suspect and how to confirm.

J Cardiovasc Med (Hagerstown)

February 2025

Center for Diagnosis and Treatment of Cardiomyopathies, Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano-Isontina (ASUGI), University of Trieste.

Diagnosing cardiac amyloidosis (CA) is challenging because of its phenotypic heterogeneity, multiorgan involvement requiring interaction among experts in different specialties and subspecialties, lack of a single noninvasive diagnostic tool, and still limited awareness in the medical community. Missing or delaying the diagnosis of CA may profoundly impact on patients' outcomes, as potentially life-saving treatments may be omitted or delayed. The suspicion of CA should arise when "red flags" for this condition are present, together with increased left ventricular wall thickness.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!