Cardiac resynchronization therapy in heart failure patients with atrial fibrillation

Maurizio Gasparini1, François Regoli, Paola Galimberti

  • 1IRCCS Istituto Clinico Humanitas, Via Manzoni 56, Rozzano/Milano, Italy. maurizio.gasparini@humanitas.it

Insights

Cardiac resynchronization therapy (CRT) improves heart failure outcomes. New guidelines now include atrial fibrillation (AF) patients for CRT, but optimal management strategies for AF burden require further definition.

Area of Science:

  • Cardiology
  • Medical Devices
  • Heart Failure Management

Background:

  • Cardiac resynchronization therapy (CRT) is a proven treatment for advanced heart failure (HF) patients in sinus rhythm.
  • Guidelines now recommend CRT for atrial fibrillation (AF) patients, a significant HF subgroup.
  • Current guidelines lack specific strategies for managing AF duration or burden in CRT candidates.

Purpose of the Study:

  • To review how atrial fibrillation (AF) impacts CRT effectiveness.
  • To discuss management strategies for different AF burdens in CRT recipients.
  • To summarize the effects of CRT on patients with AF.

Main Methods:

  • Literature review of existing guidelines and studies.
  • Analysis of AF's interference with CRT delivery.
  • Discussion of AF burden management and CRT outcomes in AF patients.

Main Results:

  • AF can interfere with optimal CRT delivery.
  • Management strategies for AF burden in CRT patients are evolving.
  • CRT shows effects on heart failure parameters in AF patients, though specific data is limited.

Conclusions:

  • CRT is increasingly considered for HF patients with AF.
  • Further research is needed to define optimal CRT strategies based on AF characteristics.
  • Effective management of AF is crucial for maximizing CRT benefits in heart failure.

Related Concept Videos

Heart Failure VI: Adjunct Therapies01:22

Heart Failure VI: Adjunct Therapies

Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
Dysrhythmias VI: Management of Dysrhythmias01:25

Dysrhythmias VI: Management of Dysrhythmias

Dysrhythmia management involves a multifaceted approach, incorporating pharmacological treatments, medical procedures, surgical interventions, lifestyle modifications, and patient education.Pharmacological ManagementAntiarrhythmic Drugs:Class I (Sodium Channel Blockers): This class includes quinidine and procainamide, which reduce the speed of impulse conduction in the heart, stabilize the cardiac membrane, and control arrhythmias. Quinidine and procainamide are Class IA agents that prolong the...
Cardiopulmonary Resuscitation III: AED Use01:23

Cardiopulmonary Resuscitation III: AED Use

Introduction to AEDAn Automated External Defibrillator (AED) is a portable medical device that analyzes the heart's rhythm and, if necessary, delivers an electrical shock to help the heart re-establish an effective rhythm during sudden cardiac arrest (SCA). SCA occurs when the heart suddenly and unexpectedly stops beating, leading to a loss of blood flow to the brain and other vital organs. In such emergencies, time is of the essence, and using an AED, combined with Cardiopulmonary...
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

Medical Management of Acute Decompensated Heart Failure (ADHF)The primary goals of therapy for patients hospitalized with acute decompensated heart failure (ADHF) include:Relieving symptomsOptimizing volume statusSupporting oxygenation and ventilationMaintaining cardiac output (CO) and end-organ perfusionIdentifying and addressing the cause of ADHFPreventing complicationsProviding patient education on factors precipitating HF exacerbationPlanning for dischargeOngoing monitoring and assessment...