Diastolic dysfunction

Area of Science:

• Cardiology
• Cardiac Physiology
• Diagnostic Imaging

Background:

• Diastolic dysfunction is characterized by impaired ventricular relaxation, normal contractility, and ejection fraction.
• Systolic dysfunction involves reduced contractility and ejection fraction, alongside impaired relaxation.
• Both dysfunctions present similar clinical signs, necessitating accurate diagnostic methods.

Purpose of the Study:

• To differentiate between diastolic and systolic heart dysfunction.
• To identify reliable echocardiographic markers for diastolic dysfunction assessment.
• To explore the role of biomarkers in heart failure diagnosis.

Main Methods:

• Echocardiography was employed to assess left ventricular function and structure.
• Left atrial (LA) volume indexed to body surface area was measured to evaluate diastolic function.
• B-type natriuretic protein levels were considered for heart failure assessment.

Main Results:

• Left atrial enlargement, defined as indexed LA volume ≥ 34-40 mL/m², is a key indicator of diastolic dysfunction.
• Echocardiography is essential for distinguishing between diastolic and systolic dysfunction.
• B-type natriuretic protein aids in heart failure diagnosis and prognosis but does not differentiate dysfunction types.

Conclusions:

• Indexed left atrial volume is the most effective echocardiographic measure for assessing diastolic heart function.
• Accurate differentiation between diastolic and systolic dysfunction is critical for appropriate patient management.
• Further research into drug treatments targeting diastolic dysfunction mechanisms is ongoing.