The autonomic nervous system and heart failure

Area of Science:

• Cardiology
• Autonomic Nervous System Research

Background:

• Heart failure (HF) pathophysiology involves hemodynamic issues, neurohormonal activation, and autonomic imbalance.
• This imbalance includes increased sympathetic and decreased vagal activity, impacting cardiac function and structure.

Purpose of the Study:

• To review the role of autonomic dysfunction in HF progression.
• To analyze methods for assessing autonomic nervous system (ANS) activity.
• To evaluate clinical effectiveness of ANS-targeted interventions.

Main Methods:

• Literature review of studies on autonomic function in HF.
• Analysis of techniques for ANS activity assessment.
• Evaluation of pharmacological and device-based interventions.

Main Results:

• Autonomic imbalance significantly contributes to HF course.
• Beta-blockade is a standard therapy for HF with dilated left ventricle.
• New devices selectively modulate sympathetic and vagal activity.

Conclusions:

• Optimal counteraction of sympathetic overactivity in HF requires further clarification.
• Excessive sympathetic blockade may lead to adverse outcomes.
• ANS modifiers hold potential for future HF management.