Utility and limitations of ejection fraction and of diastolic dysfunction in heart failure patients

Area of Science:

• Cardiology
• Medical Imaging
• Heart Failure Research

Background:

• Echocardiography is crucial for diagnosing heart failure (HF), with left ventricular (LV) ejection fraction (EF) being a primary metric.
• Limitations of EF include measurement variability and load-dependence, impacting its reliability in assessing contractile reserve.

Purpose of the Study:

• To explore advanced echocardiographic methods beyond EF for HF assessment.
• To address the challenges in diagnosing HF with preserved ejection fraction (HFpEF) using current echocardiographic guidelines.

Main Methods:

• Evaluation of stroke volume, longitudinal function, and myocardial strain.
• Focus on echocardiographic recognition of diastolic dysfunction for HFpEF diagnosis.

Main Results:

• Advanced measures like myocardial strain can overcome EF limitations in assessing HF contractile reserve.
• Echocardiography is vital for identifying diastolic dysfunction, the basis for HFpEF diagnosis.

Conclusions:

• Stroke volume, longitudinal function, and myocardial strain provide a more comprehensive assessment of HF than EF alone.
• Improving the feasibility and standardization of multi-parametric echocardiography is essential for accurate HFpEF diagnosis and management.