Baroreflex Activation Therapy in Heart Failure Management
Summary
Heart failure remains a global health challenge marked by neurohumoral imbalance and persistently elevated sympathetic tone. Baroreflex activation therapy employs an implantable device that electrically stimulates carotid baroreceptors, restoring autonomic equilibrium by dampening sympathetic outflow and enhancing parasympathetic activity. This stabilisation leads to improvements in functional capacity, symptom burden and cardiac biomarkers. Introduced as an adjunct to guideline-directed medical therapy, baroreflex activation has been evaluated across patient subgroups, including those with reduced ejection fraction and variable device backgrounds. Beyond symptomatic relief, longer-term studies have explored impacts on hospitalisation rates, ventricular remodelling and health-economic outcomes. Ongoing refinements in patient selection, device algorithms and procedural safety aim to broaden the role of baroreflex modulation in the contemporary management of advanced heart failure.
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Baroreflex Activation Therapy in Heart Failure Management publication trend
The graph below shows the total number of articles in baroreflex activation therapy in heart failure management across all publications each year (not limited to Nature Index journals).
Technical terms
Baroreflex activation therapy: An implantable neuromodulation approach that electrically stimulates carotid baroreceptors to rebalance autonomic nervous system activity in heart failure.
New York Heart Association (NYHA) functional class: A scale (I–IV) categorising the severity of heart failure symptoms and limitations in physical activity.
Ejection fraction (EF): The percentage of blood ejected from the left ventricle with each heartbeat, used to assess systolic function.
Six-minute walk distance (6MWD): A standardised test measuring the distance a patient can walk in six minutes as an index of functional capacity.
N-terminal pro-B-type natriuretic peptide (NT-proBNP): A biomarker released by ventricular myocardium in response to stretch and volume overload.
Cardiac resynchronisation therapy (CRT): A pacing therapy that synchronises ventricular contractions to improve cardiac efficiency in selected heart failure patients.
References
- Baroreflex activation therapy for the treatment of heart failure with a reduced ejection fraction: safety and efficacy in patients with and without cardiac resynchronization therapy. European Journal of Heart Failure (2015).
- Response by Sex in Patient-Centered Outcomes With Baroreflex Activation Therapy in Systolic Heart Failure. JACC Heart Failure (2021).
- Cost-impact analysis of baroreflex activation therapy in chronic heart failure patients in the United States. BMC Cardiovascular Disorders (2021).
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