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

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