[Noninvasive registration of turbulent flows in the left ventricle]

Area of Science:

• Cardiology
• Biomedical Engineering
• Fluid Dynamics

Background:

• Chronic heart insufficiency affects millions globally, necessitating advanced diagnostic and treatment methods.
• Understanding intracardiac hemodynamics is crucial for managing heart failure.
• Current treatments for heart remodeling may not always preserve native heart function.

Purpose of the Study:

• To analyze blood flow patterns within the left ventricle during the cardiac cycle in patients with chronic heart insufficiency.
• To investigate the phenomenon of turbulent blood flow and vortex formation during systole.
• To develop and evaluate a novel surgical approach for heart remodeling that preserves cardiac integrity.

Main Methods:

• Echocardiography and electrocardiography (ECG) were utilized for comprehensive cardiac assessment.
• Measurements included blood flow velocity in the left ventricle, myocardial displacement velocity, and pressure gradients.
• Analysis focused on identifying directional changes in blood flow and characterizing vortex dynamics.

Main Results:

• Systolic phase demonstrated directional blood flow changes and significant turbulence with high velocities.
• Detection of vortex flows and velocity vectors confirmed altered flow dynamics.
• A novel surgical treatment preserving the patient's heart was successfully developed.

Conclusions:

• Intracardiac blood flow exhibits complex dynamics, including turbulence and vortex formation, in chronic heart insufficiency.
• The developed surgical method offers a promising approach for heart remodeling while maintaining cardiac structure and function.
• Further research into hemodynamic alterations can inform improved therapeutic strategies for heart failure.