Prevalence and determinants of cognitive impairment in chronic heart failure patients

Stéphanie Debette1, Christophe Bauters, Didier Leys

  • 1Department of Cardiology, University Hospital of Lille, Lille, France.

Insights

Cognitive impairment is common in patients hospitalized for chronic heart failure (CHF) decompensation. This condition affects patients regardless of their history of stroke or transient ischemic attack, highlighting a significant link between heart and brain health.

Area of Science:

  • Cardiology
  • Neurology
  • Geriatrics

Background:

  • Chronic heart failure (CHF) is a complex condition with multifaceted impacts on patient health.
  • Cognitive impairment is an understudied complication in CHF patients, particularly during decompensation events.
  • Understanding cognitive function in CHF is crucial for comprehensive patient management.

Purpose of the Study:

  • To determine the prevalence of cognitive impairment in patients hospitalized for CHF decompensation.
  • To identify factors associated with cognitive impairment in this patient population.
  • To explore the relationship between CHF severity and cognitive function.

Main Methods:

  • Prospective study involving 83 patients hospitalized for CHF decompensation.
  • Utilized the Folstein Mini-Mental State Examination (MMSE) to assess cognitive function.
  • Administered questionnaires to gather data on cerebrovascular accidents (CVA) and transient ischemic attacks (TIA).

Main Results:

  • A significant proportion of patients exhibited cognitive impairment (61% with MMSE ≤ 28, 31% with MMSE < 24).
  • Factors associated with lower MMSE scores included atrial fibrillation/flutter, NYHA class IV, and higher education levels.
  • Cognitive impairment was prevalent even when excluding patients with a history of CVA or TIA.

Conclusions:

  • Cognitive impairment is frequent in CHF decompensation patients, irrespective of cerebrovascular history.
  • The severity of cognitive impairment appears to correlate with the severity of CHF.
  • Further research is needed to investigate the impact of cognitive impairment on treatment adherence and outcomes in CHF.

Related Concept Videos

Heart Failure I: Introduction01:27

Heart Failure I: Introduction

Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...
Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
Heart Failure III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

Heart failure (HF) manifests primarily as dyspnea, fatigue, and fluid retention, resulting in peripheral and pulmonary edema. Symptoms may vary depending on which ventricle is more affected, left or right.Left-Sided Heart FailureAlso known as left ventricular failure, this condition results from the left ventricle's inability to fill or eject sufficient blood into the systemic circulation. It leads to pulmonary congestion, which occurs when the left ventricle fails to eject blood effectively...
Heart Failure IV: Classification and Diagnostic Evaluation01:30

Heart Failure IV: Classification and Diagnostic Evaluation

Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...
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...
Heart Failure VII: Nursing Interventions01:30

Heart Failure VII: Nursing Interventions

The first step in nursing management of a patient with heart failure involves thoroughly assessing the patient's medical history.Subjective Data: Obtain the patient's medical history of coronary artery disease, hypertension, myocardial infarction, and symptoms like dyspnea, orthopnea, and paroxysmal nocturnal dyspnea.Objective Data: Conduct a physical examination to identify findings such as jugular vein distention, pulmonary crackles, tachycardia, murmurs, peripheral edema, and vital signs,...