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The HF-HRV Registry

CONTAK RENEWAL® Heart Failure Heart Rate Variability Registry

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00236236
Enrollment
1400
Registered
2005-10-12
Start date
2003-02-28
Completion date
2005-05-31
Last updated
2006-11-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Arrhythmia, Heart Failure

Brief summary

The Registry will evaluate how HRV Monitor diagnostics change after cardiac resynchronization therapy in patients with heart failure.

Interventions

DEVICECardiac Resynchronization Therapy

Sponsors

Boston Scientific Corporation
Lead SponsorINDUSTRY

Study design

Observational model
DEFINED_POPULATION
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients receiving their first CRT-D * Patients who sign and date a Patient Informed Consent prior to device implant * Patients who are available and willing to attend follow-up visits at the study center in which they were enrolled

Exclusion criteria

* Patients who are anticipated to receive pacing modes other than DDD or VDD (i.e., chronic atrial fibrillation patients are excluded), or patients who are anticipated to receive adaptive rate therapy * Patients who are younger than 18 years of age * Patients whose life expectancy is less than six-months due to other medical conditions * Patients with or who are likely to receive a tricuspid or other valve prosthesis * Patients who are currently enrolled in another investigational study that would directly impact the treatment or outcome of the current study * Women who are pregnant

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026