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zWedge is a clinical feasibility IDE study. The objective is to characterize the relationship between intra-thoracic impedance measurements obtained from a CRT-D device and pulmonary capillary wedge pressure (PCWP) measured via a right heart catheterization (RHC) acutely and over time.
Intra-thoracic impedance will be obtained at programmed intervals by using an investigational monitoring feature in the CRT-D device. To obtain impedance values, the device delivers a sub-threshold impulse that measures the resistance between 2 electrodes.
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| CRT-D (Intra-thoracic Impedance Monitoring) | Device | Diagnostic Feature in CRT-D device that emits a sub-threshold pulse to measure resistance between two electrodes. |
Inclusion Criteria:
Exclusion Criteria:
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Subjects previously implanted with a St. Jude Medical PROMOTE device (Model 3207 or other with similar capability) according to ACC/AHA/HRS guidelines.
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| Name | Affiliation | Role |
|---|---|---|
| Mark Carlson, MD | Abbott Medical Devices | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Little Rock Cardiology Clinic | Little Rock | Arkansas | 72211 | United States | ||
| Huntington Memorial Hospital |
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| ID | Term |
|---|---|
| D006333 | Heart Failure |
| ID | Term |
|---|---|
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
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| Pasadena |
| California |
| 91105 |
| United States |
| Colorado Springs Cardiology | Colorado Springs | Colorado | 80907 | United States |
| The Emory Clinic - Crawford Long Hospital | Atlanta | Georgia | 30308 | United States |
| Midwest Heart Research Foundation | Lombard | Illinois | 60148 | United States |
| Lahey Clinic Medical Center | Burlington | Massachusetts | 01805 | United States |
| St. Thomas Hospital Heart | Nashville | Tennessee | 37205 | United States |