Primary
Hereditary
Senile systemic
Isolated atrial
Secondary
Hemodialysis-related
Precursor protein
Light chain1
Mutant transthyretin1
Transthyretin1
Atrial natriuretic factor1
Amyloid A1
β2-microglobulin1
Characteristics
Most prevalent type of systemic amyloidosis in the United States3
May be associated with B-cell lymphoproliferative disorders such as multiple
myeloma3
Frequently affects the heart1
Autosomal dominant disease1,8
Prominent feature is autonomic and peripheral neuropathy1
Can result in clinically significant heart failure
Typically affects males in the 7th decade of life1
May cause clinically insignificant heart failure1
Increased incidence with age1
May occur in the presence of valvular disease and chronic atrial fibrillation1
Isolated to the endocardium
May be associated with chronic inflammatory conditions such as rheumatoid
arthritis1
Clinically insignificant heart involvement1
Occurs in patients on long-term dialysis from long-standing uremia
Predominant symptoms are from joint involvement