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Right ventricular (RV) dysfunction in cardiac surgery is an independent risk factor for morbidity and mortality. Raising the systemic blood pressure with norepinephrine seems to have a positive influence on the right ventricular function in several animal studies. The current study is designed to evaluate the effect of a higher blood pressure on the RV function in post cardiac surgery patients.
Goal: To demonstrate differences in RV function by raising the systemic blood pressure with norepinephrine.
Study design: randomized controlled trial Study population: 78 postoperative cardiac surgery patients admitted at the ICU.
Intervention:
Endpoints: Primary endpoint is the difference between the intervention and the control group in the change over time between baseline and the end of the study period (T4) in RVEF. Secondary endpoints are the echocardiographic parameters of RV and LV contractility, RV end-diastolic pressure, cardiac index, and fluid balance.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| intervention | Active Comparator | intervention with norepinephrine to reach a MAP of 85 mmHg for a maximum duration of 1 hour, observation of the effect on right ventricular function |
|
| control | No Intervention | control group; treatment according to current standards, observation of the effect on right ventricular function |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Norepinephrine | Drug | intervention with norepinephrine to reach a MAP of 85 mmHg |
|
| Measure | Description | Time Frame |
|---|---|---|
| right ventricular ejection fraction | Primary endpoint is the difference between the intervention and the control group in the change over time between baseline and the end of the study period (T4) in RVEF. | 2 hours postoperative |
| Measure | Description | Time Frame |
|---|---|---|
| Echocardiographic | Echocardiographic parameters of RV and LV contractility | 2 hours postoperative |
| RV end-diastolic pressure | RV end-diastolic pressure pre and post intervention |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Christiaan Boerma, Dr | Frisius Medisch Centrum | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Medical Center Leeuwarden | Leeuwarden | 8904 BR | Netherlands |
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| ID | Term |
|---|---|
| D018497 | Ventricular Dysfunction, Right |
| ID | Term |
|---|---|
| D018754 | Ventricular Dysfunction |
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
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| ID | Term |
|---|---|
| D009638 | Norepinephrine |
| ID | Term |
|---|---|
| D004983 | Ethanolamines |
| D000605 | Amino Alcohols |
| D000438 | Alcohols |
| D009930 | Organic Chemicals |
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open label study
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| baseline and 15 minutes postoperatively |
| Cardiac index | Difference in cardiac index between intervention and control groups | 2 hours postoperative |
| Fluid balance | Difference in fluid balance between intervention and control groups | 2 hours postoperative |
| D000588 |
| Amines |
| D015306 | Biogenic Monoamines |
| D001679 | Biogenic Amines |
| D002395 | Catecholamines |
| D002396 | Catechols |
| D010636 | Phenols |
| D001555 | Benzene Derivatives |
| D006841 | Hydrocarbons, Aromatic |
| D006844 | Hydrocarbons, Cyclic |
| D006838 | Hydrocarbons |