Mid-Q Response Study
Conditions
- Heart Failure
- Left Bundle-Branch Block
- Heart Failure With Reduced Ejection Fraction (HFrEF)
- Heart Failure NYHA Class II
- Heart Failure NYHA Class III
- Heart Failure NYHA Class IV
Interventions
- DEVICE: aCRT ON
- DEVICE: aCRT OFF
Sponsor
Medtronic Cardiac Rhythm and Heart Failure
Collaborators
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