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Cardiac Amyloidosis: From Clinical Suspicion to Morphological Diagnosis

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source: Pathology

year: 2018

authors: Flodrova P, Flodr P, Pika T, Vymetal J, Holub D, Dzubak P, Hajduch M, Scudla V

summary/abstract:

Amyloidosis is a heterogeneous group of diseases characterised by extracellular accumulation of amyloid in various tissues and organs of the body, leading to alteration and destruction of tissues. Heart involvement is the most important prognostic factor in patients with systemic amyloidosis and the diagnosis and typing of amyloid must be made properly. The clinical picture shows congestive heart failure with predominant right-sided heart failure symptoms in fully developed disease, various types of arrhythmias and characteristic electrocardiography and echocardiography findings. Blood and urine monoclonal protein studies and cardiac biomarkers belong to the spectrum of standard laboratory examinations.

Cardiac cardiomyopathy is connected with amyloid based on immunoglobulin light chains, serum amyloid A, transthyretin, atrial natriuretic factor or apolipoprotein A1. In the routine diagnostic algorithm, biopsy specimens are examined using special histological staining, immunohistochemistry and immunofluorescence; proteomic analysis is only performed in specialised centres.

organization: Palacky University Olomouc, Czech Republic; University Hospital Olomouc, Czech Republic

DOI: 10.1016/j.pathol.2017.10.012

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