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Ventricular optimization of biventricular pacing: a systematic review
Sern H Lim1, Gregory Y H Lip, John E Sanderson
1University Department of Medicine, City Hospital, Birmingham B18 7QH, UK. hsern@doctors.net.uk
Optimizing cardiac resynchronization therapy (CRT) with sequential biventricular pacing may improve outcomes in heart failure patients. This review compares sequential V-V delay pacing to simultaneous pacing for CRT optimization.
Area of Science:
- Cardiology
- Medical Devices
- Heart Failure Management
Background:
- Biventricular pacing, known as cardiac resynchronization therapy (CRT), improves outcomes in systolic heart failure with ventricular conduction delay.
- The mechanism of benefit is thought to be the correction of ventricular dyssynchrony.
Purpose of the Study:
- To systematically review current data on optimizing CRT.
- To compare sequential biventricular pacing (V-V delay) with simultaneous biventricular pacing in heart failure patients.
Main Methods:
- Systematic review of existing studies.
- Analysis of data comparing sequential and simultaneous biventricular pacing techniques.
Main Results:
- Separate programmability of ventricular outputs allows for optimization of CRT.
- Growing reports suggest potential benefits of sequential biventricular pacing optimization.
Conclusions:
- Optimization of CRT through sequential biventricular pacing is an area of active research.
- Further data is needed to establish the superiority of sequential over simultaneous pacing for CRT in heart failure.
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