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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
Outcomes of elderly heart failure recipients of ICD and CRT
1Department of Internal Medicine and Cardiology, University Medical Center Giessen and Marburg, Germany. grimmw@med.uni-marburg.de
Insights
Implantable cardioverter defibrillators (ICDs) and cardiac resynchronization therapy (CRT) benefit heart failure patients. This review examines their use in elderly individuals, synthesizing evidence from trials and cohort studies.
Area of Science:
- Cardiology
- Geriatric Medicine
- Medical Devices
Background:
- Implantable cardioverter defibrillator (ICD) and cardiac resynchronization therapy (CRT) are established treatments for heart failure.
- Current evidence primarily comes from trials with younger populations (mean age 60-65).
- Limited data exists specifically for elderly heart failure patients.
Purpose of the Study:
- To review the efficacy and safety of ICDs and CRT in elderly heart failure patients.
- To synthesize evidence from subgroup analyses and cohort studies.
- To inform clinical practice regarding device therapy in older adults.
Main Methods:
- Review of subgroup analyses from prospective randomized ICD and CRT intervention trials.
- Analysis of published cohort studies focusing on elderly heart failure populations.
- Synthesis of available scientific evidence.
Main Results:
- Evidence suggests ICD and CRT can be effective in selected elderly heart failure patients.
- Subgroup analyses provide insights into device therapy in older adults.
- Cohort studies offer real-world data on outcomes.
Conclusions:
- ICD and CRT may offer benefits for elderly heart failure patients, but require careful patient selection.
- Further research specifically targeting elderly populations is warranted.
- This review consolidizes current evidence for clinical decision-making.
Abstract:
Implantable cardioverter defibrillator (ICD) therapy has been established as a highly effective method for primary and secondary prevention of sudden cardiac death in heart failure patients. In addition, cardiac resynchronization therapy (CRT) with and without defibrillator back-up improves symptoms, exercise capacity and prognosis in selected patients with advanced heart failure and intraventricular conduction delay. Unfortunately, mean patient age in ICD- and CRT-intervention trials was only 60 to 65 years with few patients being older than 75 years. None of these trials separately studied an elderly heart failure population. This review summarizes the available scientific evidence for the use of ICDs and CRT devices in elderly heart failure patients based on subgroup analyses of prospective randomized ICD- and CRT-intervention trials, and based on published cohort studies.
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