The pathophysiology of heart failure: a tale of two old paradigms revisited

Area of Science:

• Cardiology
• Cardiac Physiology

Background:

• Neurohumoral activation plays a detrimental role in heart failure (HF).
• Current neurohumoral antagonism strategies have reduced HF morbidity and mortality, but high rates persist.
• Novel strategies are needed to improve HF outcomes by revisiting basic cardiac physiology.

Purpose of the Study:

• To explore fundamental cardiac physiology for novel heart failure (HF) treatment targets.
• To elucidate mechanistic principles and explain therapeutic successes in HF.
• To identify new therapeutic approaches for HF management.

Main Methods:

• Review of fundamental research in cardiac physiology.
• Focus on diastolic ventricular interaction and cardiac energetics.
• Analysis of molecular to systemic levels of cardiac function.

Main Results:

• Fundamental research illuminates the Frank-Starling law.
• Explains the success of therapies like biventricular pacing in HF.
• Identifies novel therapeutic agents, such as perhexiline for energy augmentation.

Conclusions:

• Revisiting basic cardiac physiology is crucial for advancing HF treatment.
• Understanding diastolic ventricular interaction and cardiac energetics offers new therapeutic avenues.
• Novel strategies derived from fundamental research can improve outcomes in heart failure (HF).