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Related Concept Videos

Dementia l: Introduction01:22

Dementia l: Introduction

Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...
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Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
Transient Ischemic Attack l: Introduction01:26

Transient Ischemic Attack l: Introduction

A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
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Atherosclerosis II: Clinical Manifestations and Diagnostic Tests

Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...
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Dysrhythmias VI: Management of Dysrhythmias

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Related Experiment Video

Updated: Jun 9, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
28:13

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

Published on: February 26, 2013

[Atrial fibrillation and cognitive function].

Emmanuelle Duron1, Olivier Hanon

  • 1Hôpital Broca, Paris. emmanuelle.duron@brc.aphp.fr

Psychologie & Neuropsychiatrie Du Vieillissement
|August 27, 2010
PubMed
Summary

Atrial fibrillation (AF) may increase the risk of cognitive decline and dementia. More long-term studies are needed to confirm this association and understand the underlying mechanisms.

Area of Science:

  • Neurology
  • Cardiology
  • Geriatrics

Context:

  • Atrial fibrillation (AF) is a common cardiac arrhythmia, particularly in the elderly.
  • Dementia is a growing public health concern due to aging populations.
  • Vascular risk factors are increasingly linked to dementia, including Alzheimer's disease.

Purpose:

  • To review the evidence linking atrial fibrillation (AF) with cognitive decline and dementia.
  • To explore potential mechanisms underlying this association.
  • To identify gaps in current research.

Summary:

  • Cross-sectional studies suggest an association between AF, cognitive decline, and dementia.
  • Recent longitudinal studies show mixed results, with some indicating a higher incidence of dementia in AF patients, while others find no significant link.

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The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
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The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation

Published on: February 28, 2012

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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

Published on: February 26, 2013

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
08:10

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation

Published on: July 20, 2022

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
23:33

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation

Published on: February 28, 2012

  • Potential mechanisms include thrombo-embolic events and reduced cerebral blood flow.

    • Impact:

    • Highlights the potential link between AF and cognitive impairment, emphasizing the need for further research.
    • Suggests that managing AF may have implications for dementia prevention.
    • Underscores the need for standardized methodologies in future longitudinal studies.