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Published on: July 18, 2014
Cardiac resynchronization therapy for heart failure management
Melanie T Gura1, Lynne Foreman
1The Heart Group, Inc, Akron, Ohio, USA. Meltg@aol.com
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.
Abstract:
Heart failure (HF) is responsible for an immense burden on our healthcare system. The prevalence of this disease continues to increase as a result of an aging population, successful treatment of acute coronary syndrome, and the use of new pharmacotherapies. Although pharmacotherapy with angiotensin converting enzyme inhibitors and beta-blockers shows improvement in morbidity and mortality, the overall prognosis of these patients remains poor. Cardiac transplant has limited applicability. Conduction disturbances are frequent in patients with advanced heart failure and may cause worsening systolic function and ventricular dyssynchrony. Biventricular pacing to achieve cardiac resynchronization is a recent and promising therapy for HF patients with an intraventricular conduction defect. Randomized clinical trials have substantiated that cardiac resynchronization therapy (CRT) through biventricular pacing offers significant benefit in morbidity and mortality in a select group of HF patients. Because of the high incidence of sudden cardiac death in patients with severe HF, the combination biventricular pacing with implantable cardioverter defibrillator therapy will provide additional benefit. This article provides an overview of CRT with the intent of describing ventricular dyssynchrony, the benefits of CRT, and the implications for advanced practice nurses.
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