Sürücü index and others

Area of Science:

• Cardiology
• Echocardiography
• Cardiac Physiology

Background:

• Assessing combined systolic and diastolic cardiac function is crucial for diagnosing heart conditions.
• Existing echocardiographic parameters have limitations in accurately evaluating both functions simultaneously.

Purpose of the Study:

• To evaluate the correlation between echocardiographic parameters assessing combined systolic and diastolic function.
• To compare the usability of the Sürücü index against other established indices like Vp and Tei.

Main Methods:

• Patients were categorized into control (Vp > 50 cm/s) and dysfunction (Vp ≤ 50 cm/s) groups.
• Echocardiographic parameters, including Vp, Tei index, and Sürücü index, were measured and compared between groups.

Main Results:

• Patients with combined systolic and diastolic dysfunction (Vp ≤ 50 cm/s) exhibited a higher Tei index and a lower Sürücü index.
• A significant negative correlation was observed between the Tei and Sürücü indices, indicating Tei increases as Sürücü decreases.

Conclusions:

• The Vp index is primarily influenced by diastolic parameters, while the Tei index is affected by preload and requires two cardiac cycles.
• The Sürücü index demonstrates greater usability and reliability due to its independence from preload variables, single-cycle calculation, and assessment of both systolic and diastolic function.