Essential
Clinical evidence demonstrates that timing cycle optimization improves outcomes to CRT therapy:
- In an analysis of 11 separately published studies, 440 out of 550 patients (80%) showed statistically significant improvement in markers including quality of life score (QoP), NYHA class improvement, and reduction in non-responder rates, resulting from sequential biventricular pacing over simultaneous pacing.1-11
Clinical evidence also demonstrates that optimal delays change over time, so regular optimization is necessary.12
Efficient
QuickOpt optimization:
- Optimizes AV, PV, and VV intervals in about a minute at the push of a button.
- May reduce or eliminate the need for echocardiography-based optimization.
- Allows optimization of both non-responders and responders.
- Allows frequent optimization in response to changing timing cycles.
- Is featured in all St. Jude Medical multi-chamber ICDs (DR & HF) and St. Jude Medical’s Frontier II CRT-P.
Echocardiography-based optimization is:
- Time-consuming.
- Impractical for optimizing all patients.
- Typically reserved only for non-responders to CRT therapy.

QuickOpt optimization runs an automatic sequence of IEGM (intracardiac electrogram) measurements and displays optimal AV and VV Delay results in 90 seconds.
Effective
QuickOpt optimization is clinically proven to correlate with echo-based methods:
- 99% correlation in prospective 11-patient pilot study presented at Cardiostim 2004.13
- 98% correlation in retrospective 61-patient study presented at HRS 2006.14
- 97% correlation in prospective clinical trial with 115 patients presented at Cardiostim 2006.15
