Related Experiment Video
Updated: May 16, 2026

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
Published on: December 11, 2017
Cardiac resynchronization therapy for prevention of heart failure events in elderly patients with left ventricular
Olena Dotsenko1, Alon Barsheshet, David T Huang
1Cardiology Division, University of Rochester Medical Center, Rochester, NY 14642, USA.
Insights
Cardiac resynchronization therapy (CRT) benefits elderly patients with heart failure (HF) and left ventricular (LV) systolic dysfunction. Evidence suggests CRT may prevent disease progression and offers significant clinical advantages in older populations.
Area of Science:
- Cardiology
- Geriatrics
Background:
- Heart failure (HF) from left ventricular (LV) systolic dysfunction is a growing global health concern, particularly in aging populations.
- Elderly individuals face increased risks due to age-related cardiac changes and comorbidities, reducing cardiovascular reserve.
- Cardiac resynchronization therapy (CRT) is established for advanced HF, reducing hospitalizations and mortality.
Purpose of the Study:
- To evaluate the efficacy and benefits of CRT in elderly patients with LV systolic dysfunction.
- To explore the potential of CRT in preventing or delaying HF progression in older adults.
- To assess if CRT offers comparable or superior benefits in the elderly compared to younger patients.
Main Methods:
- Review of recent studies and retrospective subgroup analyses focusing on CRT in HF patients.
- Analysis of data concerning CRT's impact on HF risk, mortality, and disease progression.
- Comparison of CRT outcomes in elderly versus younger patient cohorts.
Main Results:
- Recent studies indicate CRT reduces HF risk and mortality even in asymptomatic or mildly symptomatic patients with LV dysfunction and widened QRS.
- Accumulating data suggest CRT provides similar or greater clinical benefits in elderly patients compared to younger individuals.
- CRT may prevent or delay the progression of HF in qualified patients, including the elderly.
Conclusions:
- CRT is a valuable therapeutic option for elderly patients with LV systolic dysfunction and HF.
- Further research is essential to confirm the widespread clinical benefits of preventive CRT in the growing elderly population.
- CRT demonstrates potential to improve outcomes and delay disease progression in older adults with HF.
Abstract:
Heart failure (HF) due to left ventricular (LV) systolic dysfunction contributes significantly to cardiovascular morbidity and is a major cause of mortality throughout the world. Its prevalence is increasing as the population ages. Age-related structural and functional changes of the heart in combination with multiple coexisting comorbid conditions significantly reduce cardiovascular reserve capacity and increase the risks of developing symptomatic HF in the elderly. Cardiac resynchronization therapy (CRT) has been demonstrated to reduce HF-related hospitalization as well as mortality and has become an important part of treatment for qualified patients with advanced HF. More recent studies showed a significant reduction in the risk of HF and mortality among CRT recipients with asymptomatic and mildly symptomatic HF (New York Heart Association functional class I–II), LV systolic dysfunction and widened QRS complex, supporting the notion that CRT may prevent or delay disease progression. Although data on the benefit of preventive CRT in the elderly are limited to retrospective subgroup analyses with relatively small numbers of elderly patients, accumulating data suggest that CRT confers similar or greater clinical benefit among elderly patients compared with their younger counterparts. As the proportion of elderly patient with LV systolic dysfunction is increasing dramatically, further research is warranted to confirm these possible clinically beneficial effects of CRT in this population.
Related Concept Videos
Heart Failure VI: Adjunct Therapies
Cardiomyopathy II: Dilated Cardiomyopathy
Cardiomyopathy V: Interprofessional Care
Heart Failure V: Medical Management
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Heart Failure II: Pathophysiology
