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due lack of subjects
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Until now, diagnosis of constriction was based on pressure changes of ventricle by conventional pressure-wide hemodynamic evaluation but not on ventricular volume change. This study will provide answers to persisting questions about volume changes during respiration in patients with constrictive pericarditis by directly measuring both right and left ventricular volume.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Pressure-volume relationship | Experimental | Changes in pressure-volume relationships will be compared to changes in LV and RV systolic pressure during respiration. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| CD Leycom/Millar Instruments conductance catheter | Device | Conductance catheter-Pressure volume relationship |
|
| Measure | Description | Time Frame |
|---|---|---|
| Presence of constrictive pericarditis | 1 hour |
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Subjects referred for right and left heart catheterization will be eligible.
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| Name | Affiliation | Role |
|---|---|---|
| Barry Borlaug, MD | Mayo Clinic | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Mayo Clinic in Rochester | Rochester | Minnesota | 55905 | United States |
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| ID | Term |
|---|---|
| D010494 | Pericarditis, Constrictive |
| ID | Term |
|---|---|
| D010493 | Pericarditis |
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
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