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Published on: March 7, 2019
[Senile amyloidosis of the heart]
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.
Abstract:
A morphologic study of 376 hearts from individuals who died between 75 and 98 years of age demonstrated senile amyloidosis of the heart in 307 (82%) of the cases, using the Congo red stains for polarized light studies and the thiosine red for luminescent microscopy. The frequency of cardiac amyloidosis detection increased with age, and reached 100% in those above 90. Clinico-anatomical correlations showed repolarization changes to be the most common findings (80%), followed by arrhythmia (over 50%), conductivity disorders and reduced voltage of electrocardiographic waves. Chronic heart failure was less common (about 10%). In most cases, moderately marked coronary atherosclerosis was also found at autopsy. Amyloidosis was thought to be making a more significant contribution towards myocardial lesions, as compared to atherosclerosis, in elderly people above 85 years of age.
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