Ventricular pump function in heart failure with normal ejection fraction: insights from pressure-volume measurements

Area of Science:

• Cardiology
• Heart Failure Research

Background:

• Heart failure with normal ejection fraction (HFNEF) presents a complex clinical picture with numerous comorbidities.
• Understanding the underlying pathophysiology of HFNEF is crucial for developing targeted therapies.

Purpose of the Study:

• To review pressure-volume (PV) analyses in HFNEF patients and animal models.
• To explore the diverse pathophysiologic mechanisms contributing to HFNEF.
• To propose a broader therapeutic approach beyond diastolic dysfunction.

Main Methods:

• Review of existing pressure-volume (PV) data from HFNEF patient cohorts and animal models.
• Analysis of systolic, diastolic, and overall cardiac pumping characteristics.

Main Results:

• PV analyses suggest distinct pathophysiologic mechanisms in different HFNEF patient subgroups.
• Current understanding of HFNEF may be limited by focusing solely on diastolic dysfunction.

Conclusions:

• Effective HFNEF therapeutics require recognizing diverse underlying mechanisms.
• Expanding therapeutic targets beyond diastolic dysfunction, potentially addressing neurohormonal and renal axes, may benefit some HFNEF patients.
• Further research into varied HFNEF etiologies is warranted.