Simultaneous electrical and mechanical mapping using 3D cardiac mapping system: novel approach for optimal cardiac...

Area of Science:

• Cardiology
• Biomedical Engineering
• Medical Devices

Background:

• Cardiac resynchronization therapy (CRT) is used for heart failure but lacks efficacy in many patients.
• Optimizing left ventricular (LV) lead placement is crucial for maximizing CRT benefits.
• Current methods lack real-time assessment of mechanical delay for LV lead positioning.

Purpose of the Study:

• To introduce a novel intraoperative technique for assessing mechanical delay.
• To guide left ventricular (LV) pacing site optimization during CRT implantation.
• To improve patient response rates to cardiac resynchronization therapy (CRT).

Main Methods:

• Development of a novel intraoperative technique.
• Real-time assessment of coronary sinus electrical activation.
• Intraoperative measurement of mechanical delay in the left ventricle (LV).

Main Results:

• The described technique allows for intraoperative assessment of mechanical delay.
• Electrical and mechanical activation patterns of the coronary sinus can be measured.
• This facilitates guidance for optimal LV pacing site selection during CRT.

Conclusions:

• A novel technique enables intraoperative assessment of mechanical delay for CRT.
• This method can guide LV lead placement to improve CRT efficacy.
• Optimized lead placement may enhance patient response to cardiac resynchronization therapy (CRT).