Paradym™ RF SonR® CRT-D

Sorin- Paradym™ RF SonR® CRT-DStudies have shown that around one third of patients with advanced heart failure do not effectively respond to CRT. There are several causes for this lack of response with suboptimal atrioventricular / interventricular (AV/V V) timing being one of the key factors.

Current methods of optimization are not ideal.
Regular device optimization is important as studies have shown that optimal CRT timings vary over time due to heart remodeling.


SonR provides weekly self-adjusting optimization of AV and VV delays

• For the optimal VV configuration, the optimal AV delay is determined on a weekly basis
• Every week, SonR tests 64 combinations for rest optimization
• Every week, SonR tests 5 combinations for exercise optimization
• By contrast, echo optimization uses far fewer AV delay settings to optimize AV and VV delays

SonR performs repeated individual optimizations during daily life conditions.


Promising early results suggest SonR increases responder rates and reduces heart failure hospitalizations.

Sorin Group


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