Similarities and Differences between the Pathogenesis and Pathophysiology of Diastolic and Systolic Heart Failure

Area of Science:

• Cardiology
• Internal Medicine
• Pathophysiology

Background:

• Heart failure is broadly categorized into systolic (HFrEF) and diastolic (HFpEF) types.
• Systolic heart failure involves impaired cardiac output due to reduced systolic function.
• Diastolic heart failure, or HFpEF, occurs when left ventricular filling is impeded despite preserved systolic function, leading to elevated filling pressures and heart failure symptoms.

Purpose of the Study:

• To review and compare the pathogenesis and pathophysiology of diastolic heart failure (HFpEF) and systolic heart failure (HFrEF).
• To highlight the current understanding and knowledge gaps in HFpEF pathophysiology.

Main Methods:

• Literature review of existing studies on heart failure pathophysiology.
• Comparative analysis of mechanisms underlying HFrEF and HFpEF.

Main Results:

• HFpEF is a common global condition, yet its underlying pathophysiology remains incompletely understood.
• Key differences and similarities in the disease mechanisms of HFrEF and HFpEF were identified.

Conclusions:

• The insufficient elucidation of HFpEF pathophysiology is a significant barrier to developing targeted treatments.
• Further research into the mechanisms of diastolic heart failure is essential for advancing therapeutic strategies.