CRT Pilot Study for Children With Heart Failure

Inclusion Criteria

• •1. Chronic and severe heart failure, NYHA class III or IV
• •2. Patients optimized and stable on diuretics and afterload reducing agents (with or without inotropes) for at least 1 week prior to enrollment
• •3. Chronic systemic ventricular dysfunction as defined in the protocol.
• •4. Intra ventricular conduction delay defined by spontaneous QRS duration \> ULN for age.
• •5. All children from 1 to 18 years of age, both male and female, and all ethnic backgrounds.
• •6. Signed and dated informed consent.
• •7. Able to receive pectoral or abdominal implant.