quadripolar lead
Pronunciation: kwah-drih-pole-ar
Cardiac resynchronization lead with four electrodes enabling multiple pacing configurations and improved electrical performance.
Full Definition
A quadripolar lead features four electrodes positioned along its length, typically used for left ventricular pacing in cardiac resynchronization therapy systems. This design provides multiple pacing vector options compared to traditional bipolar leads, allowing physicians to select optimal electrical configurations, avoid phrenic nerve stimulation, and improve pacing thresholds. Medical editors working with CRT documentation must understand the advantages of quadripolar technology, including programmability options and the ability to overcome anatomical limitations that may compromise bipolar lead performance.
Usage
Usage note: Specify electrode configuration when relevant; distinguish from bipolar leads; include programming advantages when applicable.
In Context
- "The quadripolar lead provided six different pacing vectors, allowing optimization of capture threshold and avoidance of phrenic stimulation." — CRT implant report
- "Quadripolar lead technology has improved CRT response rates by enabling better electrical synchronization options." — Clinical outcomes study