left ventricular lead
A specialized pacing lead positioned in the coronary sinus to stimulate the left ventricle for cardiac resynchronization therapy.
Full Definition
A left ventricular lead is a specialized cardiac pacing lead designed for placement through the coronary sinus and into a coronary vein to provide direct left ventricular stimulation in CRT devices. These leads are typically more complex than standard endocardial leads, featuring multiple electrodes and specialized anchoring mechanisms to maintain stable position within the venous anatomy. Left ventricular lead placement requires advanced techniques and may involve balloon occlusion venography to identify suitable target vessels for optimal lead positioning.
Usage
Usage note: May be abbreviated as LV lead in clinical documentation; ensure proper anatomical distinction from right-sided leads.
In Context
- "The left ventricular lead was positioned in a posterolateral vein with excellent capture thresholds." — CRT implant procedure note
- "Lead surveillance revealed stable left ventricular lead parameters six months post-implant." — Device follow-up documentation