BIOTRONIK Lumax DR ICD Series, Technical Manual, Page: 62 / 176

54 Lumax Technical Manual
As a result of the device design and header configuration,
ventricular pacing pulses can be delivered between the right / left
ventricular lead tip electrodes simultaneously (cathode) and the
ring of the right ventricular lead (anode). Ventricular sensing
primarily uses the poles of the right ventricular lead tip and ring.
This design avoids sensing of ventricular activity twice during a
single cardiac cycle (double counting) in patients with a wide QRS
complex. However, for diagnostic purposes and LV pacing
protection the Lumax HF devices can be programmed to sense in
the left ventricle.
Atrial Channel
The Lumax ICDs/CRT-Ds pace and sense in bipolar
configuration, between the atrial lead’s tip and ring electrodes. A
bipolar atrial lead must be used to ensure reliable sensing of atrial
activity.
Ventricular Channel
The Lumax HF devices can be programmed to pace in both the
right and left ventricle (as well as RV only). The Lumax HF
primarily senses in a bipolar configuration in the right ventricle.
However, for diagnostic purposes and LV pacing protection the
Lumax HF devices can be programmed to sense in the left
ventricle.
Potential Ventricular lead configurations are provided in Table 18 .