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Enrolled patients implanted with Biotronik CRT-D and QP lead equipped with MultiPole pacing mode is grouped into which programmed into MultiPole pacing, or conventional bi-ventricular pacing mode. They are followed up by seven month post implantation, and predefined cardiac functional parameters are collected at each visit.
Enrolled patients will undergo the baseline medical tests to assess the cardiac functions (e.g. echo, blood test, and 12-Lead ECG) prior to the implantation of Biotronik CRT-D and QP lead featured with MultiPole Pacing parameter. At implantation, LV-LV conduction delays are measured in predefined LV pacing and sensing configurations. One month after the successful implantation, the patients revisit the investigation site to be adjudicated for programming MultiPole pacing or continuing bi-ventricular pacing mode, based on their echo readings by then. Patients are subsequently followed up at four and seven month post implantation to acquire the LV-LV conduction delays and echo readings, etc. at the time.
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| Measure | Description | Time Frame |
|---|---|---|
| Correlation between LV-LV/RV-LV intra-cardiac conduction time and multiple hemodynamic parameters | LV-LV/RV-LV intra-cardiac conduction time will be obtained at each time frame, and correlation will be investigated with variation of multiple hemodynamic parameters from baseline up to seven month follow up. | through study completion, an average of 7 months |
| Measure | Description | Time Frame |
|---|---|---|
| Rate of arrhythmia episodes | Comparison between patient groups in terms of rate of arrhythmia | through study completion, an average of 7 months |
| Influence by baseline characteristics | An alanysis of the impact of the baseline characteristics on other outcomes |
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Inclusion Criteria:
To be eligible for the study enrollment, candidate patients must meet all of the following criteria
Exclusion Criteria:
Candidate patients will not be eligible if either of the following criteria is applicable
Patients with known pregnancy is not eligible
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The patient collective consists of heart failure patients with CRT-D indication according to clinical routine. Two hundred patients with successful device implantation will be enrolled in the clinical investigation.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Kyorin University Hospital | Mitaka | Tokyo | 181-8611 | Japan |
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| ID | Term |
|---|---|
| D006333 | Heart Failure |
| ID | Term |
|---|---|
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
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| through study completion, an average of 7 months |