- More than 1 hospitalization or ED visit in the last year for Congestive Heart Failure (CHF)
- Systolic blood pressure less than 100mmHg
- Unable to tolerate beta-blocker therapy
- Unable to tolerate ACE-Inhibitor
- Unintentional weight loss
- Does not respond to biventricular pacing
- Hospital protocol for patient selection varies; these are some examples
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