[Senile amyloidosis of the heart]

Kardiologiia
|February 1, 1986
PubMed

Insights

Senile cardiac amyloidosis is highly prevalent in individuals over 75, increasing with age. This condition significantly contributes to heart disease in the elderly, more so than atherosclerosis in those over 85.

Area of Science:

  • Cardiovascular Pathology
  • Geriatric Medicine
  • Histopathology

Context:

  • Aging population presents unique cardiovascular challenges.
  • Senile cardiac amyloidosis is a common finding in older adults.
  • Understanding age-related cardiac changes is crucial for geriatric care.

Purpose:

  • To investigate the prevalence and impact of senile cardiac amyloidosis in the elderly.
  • To correlate morphologic findings with electrocardiographic changes.
  • To compare the contribution of amyloidosis and atherosclerosis to myocardial lesions in advanced age.

Summary:

  • A morphologic study of 376 elderly hearts (75-98 years) revealed 82% prevalence of senile cardiac amyloidosis, increasing to 100% in those over 90.
  • Common electrocardiographic findings included repolarization changes (80%), arrhythmias (>50%), and conduction disorders.
  • Amyloidosis appeared to contribute more significantly to myocardial damage than atherosclerosis in individuals over 85.

Impact:

  • Highlights the high prevalence of senile cardiac amyloidosis, a potentially underdiagnosed condition in the elderly.
  • Provides insights into the clinical manifestations of cardiac amyloidosis in older adults.
  • Suggests a re-evaluation of the role of amyloidosis in age-related heart disease, potentially influencing diagnostic and therapeutic strategies.

Related Concept Videos

Amyloid Fibrils03:03

Amyloid Fibrils

Amyloid fibrils are aggregates of misfolded proteins.  Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils. 
Amyloid deposits were observed as early as 1639 in the liver and the spleen.   In 1854, Rudolph Virchow performed iodine staining, normally used to...
Amyloid Fibrils03:03

Amyloid Fibrils

Amyloid fibrils are aggregates of misfolded proteins.  Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils. 
Amyloid deposits were observed as early as 1639 in the liver and the spleen.   In 1854, Rudolph Virchow performed iodine staining, normally used to...
Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...