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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
Treating heart failure with cardiac contractility modulation electrical signals
Hani N Sabbah1, Ramesh C Gupta, Sharad Rastogi
1Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, MI 48202, USA. hsabbah1@hfhs.org
Insights
Pharmacologic treatments have improved heart failure (HF) care, but advanced HF still progresses. Device-based therapies, including cardiac contractility modulation (CCM), are emerging as investigational options for advanced HF patients.
Area of Science:
- Cardiology
- Biomedical Engineering
Background:
- Significant advances in pharmacologic treatment for chronic heart failure (HF) have been achieved over the last two decades.
- While effective, current medications like ACE inhibitors, beta-blockers, and aldosterone antagonists delay but do not halt the progression of advanced HF.
Purpose of the Study:
- To review the progress in the development and implementation of cardiac contractility modulation (CCM) as a device-based therapy.
- To highlight CCM as a potential treatment for patients with advanced heart failure.
Main Methods:
- Review of existing literature on pharmacologic and device-based therapies for HF.
- Focus on the development and clinical implementation of CCM devices.
Main Results:
- Pharmacologic therapies have reduced mortality and morbidity in HF patients with reduced ejection fraction.
- Despite optimal medical therapy, many patients with advanced HF continue to deteriorate, necessitating further interventions.
- Device therapies, including CCM, are emerging to address the unmet needs in advanced HF management.
Conclusions:
- Cardiac contractility modulation (CCM) is an investigational device-based therapy utilizing electrical signals for advanced HF treatment.
- CCM represents a promising area of development for managing patients with intractable heart failure.
Abstract:
Major advances have been made over the past two decades in the pharmacologic treatment of chronic heart failure (HF). Angiotensin-converting enzyme inhibitors, beta-blockers, and aldosterone antagonists have had a substantial impact on reducing mortality and morbidity in patients with HF and low left ventricular ejection fraction. These treatments delayed the progression toward advanced intractable HF but did not arrest progressive worsening of the disease. Patients on optimal medical therapy continued to deteriorate, albeit at a much slower pace, ultimately requiring further intervention. This gave rise to a host of device-based therapies that emerged in recent years to address this unmet need. Device therapies such as cardiac resynchronization, the CorCap cardiac support device (Acorn Cardiovascular, Inc., St. Paul, MN), and the OPTIMIZER System (Impulse Dynamics USA, Inc., Orangeburg, NY) are a few examples. This review addresses the progress made to date in the development and implementation of cardiac contractility modulation (CCM) as a device-based therapy for the treatment of patients with advanced HF. Treatment of patients with HF using CCM electrical signals is at present an investigational form of therapy.
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