Heart Failure
Conditions
Keywords
CRT, heart failure, optimization, Timing cycle optimization methods
Brief summary
QuickOptTM optimization method provides a quicker, simpler and reliable alternative to standard echocardiography methods for optimization of sensed AV, paced AV and V-V delays in patients with CRT-P devices
Interventions
The QuickOpt algorithm will suggest values for programming AV, PV and VV delay.
Sponsors
Study design
Eligibility
Inclusion criteria
* Patient meets current CRT-P indications and be implanted with an SJM CRT-P device with V-V timing and a compatible lead system * Patient is able to provide written informed consent for study participation
Exclusion criteria
* Patient has limited intrinsic atrial activity (≤ 40 bpm) * Patient has persistent or permanent AF * Patient has a 2o or 3o heart block * Patient is unable to provide analyzable echocardiogram images * Patient's life expectancy is \<12 months * Patient is \<18 years old * Patient is pregnant * Patient is on IV inotropic agents
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| To compare the aortic velocity time integral value derived by the QuickOptTM optimization method with that derived by the standard echocardiography optimization methods | 1 day |
Secondary
| Measure | Time frame |
|---|---|
| Time required for each optimization method considered in this study | 1 day |
| Effects of any spontaneous cardiac events during the QuickOpt optimization process and these events are not limited to premature ventricular complex (PVC), pacemaker-mediated tachycardia (PMT), atrial fibrillation (AF) and far-field R-wave oversensing | 1 day |
Countries
China