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Related Concept Videos

Cardiovascular System Abnormal Findings II: Auscultation01:25

Cardiovascular System Abnormal Findings II: Auscultation

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Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:
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Age Differences in Aortic Stenosis.

Tomoyo Hamana1, Teruo Sekimoto1, Aloke V Finn1,2

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This summary is machine-generated.

Aortic stenosis (AS) affects 2-3% of adults over 65 and is rising. Understanding its varied causes and mechanisms is key for effective lifelong management and treatment selection.

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Area of Science:

  • Cardiology
  • Valvular Heart Disease
  • Geriatric Medicine

Background:

  • Aortic stenosis (AS) is a prevalent condition in aging populations, with prevalence projected to double by 2050.
  • AS arises from diverse etiologies, including calcific degeneration, congenital abnormalities (bicuspid/unicuspid valves), and rheumatic heart disease.
  • The normal aortic valve structure is crucial for function, and its calcification involves processes similar to atherosclerosis.

Purpose of the Study:

  • To review the etiologies, progression mechanisms, and management strategies for aortic stenosis.
  • To highlight the impact of different AS causes on disease onset and progression.
  • To emphasize the need for personalized management approaches in older patients and the importance of understanding valve deterioration for long-term care.

Main Methods:

  • Literature review of aortic stenosis pathogenesis, risk factors, and treatment modalities.
  • Analysis of the distinct characteristics of calcific, congenital, and rheumatic aortic stenosis.
  • Evaluation of current therapeutic options, including surgical and transcatheter aortic valve replacement (TAVR), and their limitations.

Main Results:

  • Calcific AS progresses slowly over decades, influenced by aging and risk factors like dyslipidemia and smoking.
  • Congenital AS (bicuspid/unicuspid valves) leads to earlier disease onset compared to tricuspid valves.
  • Rheumatic AS also shows age-related patterns, with earlier onset in those with a history of rheumatic fever.

Conclusions:

  • Effective management of AS, especially in the elderly, requires a comprehensive approach considering patient-specific factors.
  • Transcatheter aortic valve replacement (TAVR) shows promise, but long-term durability data, particularly in younger patients, is needed.
  • Understanding the mechanisms of structural valve deterioration is critical for optimizing lifelong AS management and treatment selection.