The Application of Negative Atrioventricular Hysteresis in Cardiac Resynchronization Therapy
| Status: | Enrolling by invitation |
|---|---|
| Conditions: | Cardiology |
| Therapuetic Areas: | Cardiology / Vascular Diseases |
| Healthy: | No |
| Age Range: | 18 - Any |
| Updated: | 2/3/2019 |
| Start Date: | December 2016 |
| End Date: | September 2019 |
The purpose of this study is to evaluate the application of Negative Atrioventricular
Hysteresis (NAVH) to improve electrical synchrony in Cardiac Resynchronization Therapy (CRT)
patients.
Hysteresis (NAVH) to improve electrical synchrony in Cardiac Resynchronization Therapy (CRT)
patients.
Inclusion Criteria:
- Implanted with a functioning SJM Quadripolar CRT Pacing System
- QRS duration > 140 ms
- Left bundle branch block documented
- Ability to provide informed consent for study participation
- Willing to comply with the study evaluation requirements
- At least 18 years of age
Exclusion Criteria:
- CRT Pacing System implanted less than 1 week at time of enrollment
- CRT Pacing System implanted more than 24 months at time of enrollment
- CRT Pacing System implanted more than 90 days at time of enrollment AND intrinsic QRS
duration is shorter than pre-implant intrinsic QRS duration by more than 10 ms
- Resting ventricular rate >100 bpm
- Intrinsic PR interval > 300 ms
- Paroxysmal or persistent atrial tachycardia or atrial fibrillation documented
- A recent myocardial infarction, ablation, drug intoxication, electrolyte imbalance, or
any condition within the last 90 days that would be contraindicated for CRT
programming changes in the opinion of the investigator
- Women who are pregnant or who plan to become pregnant during the study
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