Cardiac resynchronization therapy for heart failure management

Melanie T Gura1, Lynne Foreman

  • 1The Heart Group, Inc, Akron, Ohio, USA. Meltg@aol.com

AACN Clinical Issues
|October 12, 2004
PubMed

Insights

Cardiac resynchronization therapy (CRT) using biventricular pacing improves outcomes for select heart failure patients with conduction defects. Combining CRT with defibrillator therapy may further reduce sudden cardiac death risk.

Area of Science:

  • Cardiology
  • Medical Devices
  • Heart Failure Management

Background:

  • Heart failure (HF) presents a significant healthcare burden, with increasing prevalence due to aging populations and improved acute coronary syndrome treatments.
  • Despite pharmacotherapies like ACE inhibitors and beta-blockers, HF patient prognosis remains poor, and cardiac transplantation is limited.
  • Conduction disturbances and ventricular dyssynchrony frequently complicate advanced HF, worsening systolic function.

Purpose of the Study:

  • To provide an overview of cardiac resynchronization therapy (CRT).
  • To describe ventricular dyssynchrony in heart failure patients.
  • To outline the benefits of CRT and its implications for advanced practice nurses.

Main Methods:

  • Review of randomized clinical trials on biventricular pacing for HF.
  • Analysis of data on the efficacy of cardiac resynchronization therapy (CRT).
  • Discussion of combined biventricular pacing and implantable cardioverter defibrillator therapy.

Main Results:

  • Cardiac resynchronization therapy (CRT) through biventricular pacing offers significant benefits in morbidity and mortality for a select group of HF patients with intraventricular conduction defects.
  • Ventricular dyssynchrony is a frequent complication in advanced HF, impacting systolic function.
  • Combined biventricular pacing and implantable cardioverter defibrillator therapy may provide additional benefits in reducing sudden cardiac death.

Conclusions:

  • Cardiac resynchronization therapy (CRT) is a promising treatment for select heart failure patients experiencing ventricular dyssynchrony.
  • The integration of CRT with implantable cardioverter defibrillator therapy warrants consideration for patients with severe HF.
  • Understanding CRT is crucial for advanced practice nurses managing heart failure patients.

Related Concept Videos

Rheumatic Heart Disease III: Medical Management01:21

Rheumatic Heart Disease III: Medical Management

Rheumatic heart disease (RHD) management can be divided into two main strategies: prevention and long-term management.Primary PreventionPrimary prevention focuses on timely diagnosis and management of group A streptococcal pharyngitis to prevent acute rheumatic fever. The most widely used antibiotic for treating this condition is intramuscular benzathine penicillin G.Acute Rheumatic Fever TreatmentThe primary treatment goal for a patient diagnosed with acute rheumatic fever is to suppress the...
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...
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...
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.
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...