Isolated atrial amyloidosis is a form of
amyloidosis
Amyloidosis is a group of diseases in which abnormal proteins, known as amyloid fibrils, build up in tissue. There are several non-specific and vague signs and symptoms associated with amyloidosis. These include fatigue, peripheral edema, weight ...
affecting the
atria of the heart.
It is associated with accumulation of the protein
atrial natriuretic factor
Atrial natriuretic peptide (ANP) or atrial natriuretic factor (ANF) is a natriuretic peptide hormone secreted from the cardiac atria that in humans is encoded by the NPPA gene. Natriuretic peptides (ANP, BNP, and CNP) are a family of hormone/pa ...
.
It may cause
abnormal heart rhythms.
References
{{Amyloidosis
Amyloidosis
Heart diseases
Protein folding