Biotronik -Model VVR-VDDR -Hybrid System
DX Technology is a unique hybrid system combining the advantages of both single- and dual-chamber ICD systems. It offers AF detection, 3-channel IEGMs, SVT discrimination, and A-V sequential pacing like a dual-chamber system, while making procedures less complex and allowing for lower implant complication rates. Atrial signals can be reliably sensed by the floating dipole rings located in the proximal part of the DX lead, thanks to a special atrial input stage of the DX device.
Atrial sensing allows the SMART Detection algorithm to discriminate supraventricular tachycardias (SVTs) from ventricular tachycardias (VTs) by analyzing atrial and ventricular rhythms, an exclusive feature previously available only in dual-chamber ICDs.3
Better and earlier AT/AF detection leads to improved patient care.4 Like this, BIOTRONIK DX systems provide unique protection to ICD patients who do not require atrial pacing.
For this patient group, DX Technology also extends these advantages to cardiac resynchronization therapy, as CRT-DX provides equivalent therapy with less hardware.5
The SENSE study showed that the AHRE detection rate6 was significantly higher in the DX cohort compared to the single-chamber cohort (p=0.026).7 While AHRE detection was not significantly different from the dual-chamber cohort (p=1.00),8 multivariate regression showed that the use of DX was associated with AHRE detection.9