What is Heart Failure with Mid-range Ejection Fraction? A New Subgroup of Patients with Heart Failure

Area of Science:

• Cardiology
• Heart Failure Research

Background:

• The 2016 European Society of Cardiology guidelines introduced heart failure with mildly reduced ejection fraction (HFmrEF).
• HFmrEF represents a previously under-defined group between HF with reduced ejection fraction (HFrEF) and HF with preserved ejection fraction (HFpEF).
• Patients in this intermediate category were often excluded from studies or misclassified.

Purpose of the Study:

• To define and characterize the newly recognized HFmrEF patient group.
• To explore the clinical characteristics and pathophysiology of HFmrEF.
• To consolidate existing literature on this specific heart failure classification.

Main Methods:

• Literature review and synthesis.
• Analysis of existing research on HFmrEF.
• Clarification of diagnostic criteria and patient profiles.

Main Results:

• HFmrEF bridges the gap between HFrEF and HFpEF.
• This classification allows for targeted research into a distinct patient population.
• Understanding HFmrEF characteristics is crucial for future treatment strategies.

Conclusions:

• The establishment of HFmrEF provides a framework for dedicated research.
• Further investigation into HFmrEF pathophysiology and treatment is warranted.
• This classification improves the precision of heart failure diagnosis and management.