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| Name | Class |
|---|---|
| Fundacio Clinic Barcelona | OTHER |
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The aim of this study was to compare the response to cardiac resynchronization therapy when the interventricular pacing interval was optimized by Tissue Doppler Imaging (TDI) to response when it was optimized following QRS width criteria.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Tissue Doppler Imaging (TDI) optimization | Active Comparator | Interventricular pacing delay optimized according to Tissue-Doppler echocardiography |
|
| Electrocardiographic optimization | Active Comparator | Interventricular pacing delay optimized according to QRS width observation in the 12-lead surface electrocardiogram |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Interventricular pacing delay optimization by using Tissue Doppler-derived displacement curves | Device |
| ||
| Measure | Description | Time Frame |
|---|---|---|
| 6-month echocardiographic response | Reduction of the end-systolic volume (measured in mililiters according to transthoracic echocardiography) of >10% as compared to the baseline value. |
| Measure | Description | Time Frame |
|---|---|---|
| 6-month clinical response | Combined end-point consisting in no death due to cardiovascular reasons, no heart transplantation and distance increase of >10% (measured in meters) in the 6-minute walking test. |
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Inclusion Criteria:
Exclusion Criteria:
-
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hospital Clinic Universitari | Barcelona | Catalonia | Spain |
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| Electrocardiographic optimization of the interventricular pacing delay according to QRS width |
| Device |
|
| ID | Term |
|---|---|
| D006333 | Heart Failure |
| ID | Term |
|---|---|
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
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