Cardiac resynchronization therapy in paediatric and congenital heart disease patients

Annelies E van der Hulst1, Victoria Delgado, Nico A Blom

  • 1Department of Paediatric Cardiology, Leiden University Medical Center, Leiden, The Netherlands.

Insights

Cardiac resynchronization therapy (CRT) shows promise for congenital heart disease (CHD) patients with heart failure. Echocardiography can identify mechanical dyssynchrony to guide CRT selection in this heterogeneous population.

Area of Science:

  • Cardiology
  • Pediatric Cardiology
  • Biomedical Engineering

Background:

  • Congenital heart disease (CHD) patient numbers are rising, with heart failure being a leading cause of mortality.
  • Cardiac resynchronization therapy (CRT) offers potential benefits for heart failure in CHD and pediatric populations.
  • The heterogeneity of CHD anatomical substrates complicates CRT efficacy.

Purpose of the Study:

  • To review the role of CRT in pediatric and CHD patients experiencing heart failure.
  • To evaluate current CRT inclusion criteria and outcomes across diverse anatomical subgroups.
  • To discuss echocardiographic assessment of mechanical dyssynchrony for predicting CRT response.

Main Methods:

  • Review of existing literature on CRT in CHD and pediatric heart failure.
  • Analysis of current CRT inclusion criteria and outcomes in various CHD anatomical subtypes.
  • Comprehensive discussion of echocardiographic methods for assessing mechanical dyssynchrony.

Main Results:

  • CRT is a potential therapeutic option for heart failure in CHD and pediatric patients.
  • Patient heterogeneity and specific anatomical features significantly impact CRT effectiveness.
  • Echocardiography, particularly novel tools, aids in assessing cardiac dyssynchrony for CRT candidate selection.

Conclusions:

  • CRT may improve clinical outcomes for pediatric and CHD patients with heart failure.
  • Tailoring CRT based on individual anatomy and dyssynchrony assessment is crucial for success.
  • Echocardiography plays a vital role in optimizing CRT application in this population.

Related Concept Videos

Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
Pulse rhythm01:30

Pulse rhythm

Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
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...