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Research study evaluating the individual and combined effects of inhaled nitric oxide (iNO) and inhaled prostacyclin (iPGI2), on the function of the right heart after surgery for either heart transplant or for left ventricular assist device (LVAD) placement. The investigators hope to learn if these two medications, when given together after surgery, improve right heart function by lowering blood vessel pressures in the lungs. The investigators hope to learn if the combined effects of these two medications are better than either medication used alone. Participants were selected as a possible participant in this study because right heart problems are common during and after surgery for heart transplant and for LVAD placement. In addition, iNO is always given during and after these two types of surgeries at Stanford to help improve how the right heart functions.
The study will begin once the participant arrives in the cardiothoracic intensive care unit (CTICU) after heart surgery for either heart transplant or LVAD placement. As is standard of care after these types of surgeries, the participant will arrive in the CTICU with a breathing tube already in place, receiving iNO, and connected to a breathing machine. The participant will be receiving relaxing medication in an intravenous line provided by the cardiac anesthesiologist and the CTICU physicians. The participant will be unaware of the study period while the participant is sedated. Data will be collected from the monitor screen connected to the participant's arterial and venous lines, and if placed, LVAD monitor. These data are:
Central venous pressure (CVP) Mean arterial pressure (MAP) Mean pulmonary artery pressure (MPAP) Cardiac Index (CI) Systemic vascular resistance (SVR) Pulmonary vascular resistance (PVR) Right ventricular stroke work index (RVSWI) LVAD Flow LVAD Pulsatility Index (PI)
These data will be collected at five different time periods during the first eight hours after surgery.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Combined nitric oxide and prostacyclin | Experimental | iNO (20 ppm continuously) and iPGI2 (0.05 micrograms/kg/min continuously) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Nitric Oxide | Drug | inhaled nitric oxide |
|
| Measure | Description | Time Frame |
|---|---|---|
| Pulmonary Hypertension | Pulmonary hypertension was measured as mean of Mean Pulmonary Artery Pressure for initial 8 hours after admission to the Intensive Care Unit (ICU). MPAP value ≥25 mmHg (resting) indicates pulmonary hypertension state. | 8 hours (upon arrival at ICU, and after 4 successive 2 hour treatments with 1. iNO only, 2. iNO+iPGI2 (1st), 3. iPGI2 only, and 4. iNO+iPGI2 (2nd)) |
| Measure | Description | Time Frame |
|---|---|---|
| Right Heart Dysfunction | Right Heart Dysfunction was measured as mean of Right Ventricular Stroke Work Index (RVSWI) for the initial 8 hours after admission to the Intensive Care Unit (ICU). RVSWI is measured as the difference in mean pulmonary artery pressure (MPAP) and central venous pressure (CVP), divided by the cardiac index (CI): [(MPAP-CVP) / CI]. Normal range for RVSWI is 5-10 g/m. | 8 hours (upon arrival at ICU, and after 4 successive 2 hour treatments with 1. iNO only, 2. iNO+iPGI2 (1st), 3. iPGI2 only, and 4. iNO+iPGI2 (2nd)) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Andrew J Powers, MD | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Stanford Hospital and Clinics | Stanford | California | 94305 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 19931670 | Background | Khan TA, Schnickel G, Ross D, Bastani S, Laks H, Esmailian F, Marelli D, Beygui R, Shemin R, Watson L, Vartapetian I, Ardehali A. A prospective, randomized, crossover pilot study of inhaled nitric oxide versus inhaled prostacyclin in heart transplant and lung transplant recipients. J Thorac Cardiovasc Surg. 2009 Dec;138(6):1417-24. doi: 10.1016/j.jtcvs.2009.04.063. | |
| 15052203 |
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| ID | Title | Description |
|---|---|---|
| FG000 | Combined Nitric Oxide and Prostacyclin | Inhaled nitric oxide (iNO; 20 ppm continuously) and inhaled prostacyclin (iPGI2; 0.05 micrograms/kg/min continuously) |
| Title | Milestones | Reasons Not Completed | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
|
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| ID | Title | Description |
|---|---|---|
| BG000 | Combined Nitric Oxide and Prostacyclin | iNO (20 ppm continuously) and iPGI2 (0.05 micrograms/kg/min continuously) |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Continuous | Mean |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Pulmonary Hypertension | Pulmonary hypertension was measured as mean of Mean Pulmonary Artery Pressure for initial 8 hours after admission to the Intensive Care Unit (ICU). MPAP value ≥25 mmHg (resting) indicates pulmonary hypertension state. | Posted | Mean | Full Range | mmHg | 8 hours (upon arrival at ICU, and after 4 successive 2 hour treatments with 1. iNO only, 2. iNO+iPGI2 (1st), 3. iPGI2 only, and 4. iNO+iPGI2 (2nd)) |
|
|
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Combined Nitric Oxide and Prostacyclin | iNO (20 ppm continuously) and iPGI2 (0.05 micrograms/kg/min continuously) |
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Analyses are underpowered due low enrollment.
| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Charles Hill | Stanford University | (650) 725-1930 | chill1@stanford.edu |
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| ID | Term |
|---|---|
| D006333 | Heart Failure |
| D006976 | Hypertension, Pulmonary |
| ID | Term |
|---|---|
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |
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| ID | Term |
|---|---|
| D009569 | Nitric Oxide |
| D045462 | Endothelium-Dependent Relaxing Factors |
| D011464 | Epoprostenol |
| ID | Term |
|---|---|
| D026361 | Reactive Nitrogen Species |
| D005609 | Free Radicals |
| D007287 | Inorganic Chemicals |
| D009589 | Nitrogen Oxides |
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| Prostacyclin | Drug | inhaled prostacyclin |
|
|
| Systemic Vascular Resistance (SVR) | Systemic Vascular Resistance (SVR) was measured as mean of Systemic Vascular Resistance (SVR) for the initial 8 hours after admission to the Intensive Care Unit (ICU). Normal range for SVR is 800-1200 dynes/sec/cm5. | 8 hours (upon arrival at ICU, and after 4 successive 2 hour treatments with 1. iNO only, 2. iNO+iPGI2 (1st), 3. iPGI2 only, and 4. iNO+iPGI2 (2nd)) |
| Central Venous Pressure (CVP) | Central Venous Pressure (CVP) was measured as mean of CVP for the initial 8 hours after admission to the Intensive Care Unit (ICU). Normal range for CVP is 3-8 mmHg. | 8 hours (upon arrival at ICU, and after 4 successive 2 hour treatments with 1. iNO only, 2. iNO+iPGI2 (1st), 3. iPGI2 only, and 4. iNO+iPGI2 (2nd)) |
| Mean Arterial Pressure (MAP) | Mean Arterial Pressure (MAP) was measured as mean of MAP for the initial 8 hours after admission to the Intensive Care Unit (ICU). Normal range for MAP is 70-110 mmHg. | 8 hours (upon arrival at ICU, and after 4 successive 2 hour treatments with 1. iNO only, 2. iNO+iPGI2 (1st), 3. iPGI2 only, and 4. iNO+iPGI2 (2nd)) |
| Heart Rate | Heart Rate was measured as mean of Heart Rate for the initial 8 hours after admission to the Intensive Care Unit (ICU). Normal range for heart rate is generally 60 to 100 beats per minutes in adults, but this can vary. | 8 hours (upon arrival at ICU, and after 4 successive 2 hour treatments with 1. iNO only, 2. iNO+iPGI2 (1st), 3. iPGI2 only, and 4. iNO+iPGI2 (2nd)) |
| De Wet CJ, Affleck DG, Jacobsohn E, Avidan MS, Tymkew H, Hill LL, Zanaboni PB, Moazami N, Smith JR. Inhaled prostacyclin is safe, effective, and affordable in patients with pulmonary hypertension, right heart dysfunction, and refractory hypoxemia after cardiothoracic surgery. J Thorac Cardiovasc Surg. 2004 Apr;127(4):1058-67. doi: 10.1016/j.jtcvs.2003.11.035. |
| 21530317 | Background | Potapov E, Meyer D, Swaminathan M, Ramsay M, El Banayosy A, Diehl C, Veynovich B, Gregoric ID, Kukucka M, Gromann TW, Marczin N, Chittuluru K, Baldassarre JS, Zucker MJ, Hetzer R. Inhaled nitric oxide after left ventricular assist device implantation: a prospective, randomized, double-blind, multicenter, placebo-controlled trial. J Heart Lung Transplant. 2011 Aug;30(8):870-8. doi: 10.1016/j.healun.2011.03.005. Epub 2011 Apr 29. |
| 22727248 | Background | Antoniou T, Prokakis C, Athanasopoulos G, Thanopoulos A, Rellia P, Zarkalis D, Kogerakis N, Koletsis EN, Bairaktaris A. Inhaled nitric oxide plus iloprost in the setting of post-left assist device right heart dysfunction. Ann Thorac Surg. 2012 Sep;94(3):792-8. doi: 10.1016/j.athoracsur.2012.04.046. Epub 2012 Jun 23. |
| years |
|
| Sex: Female, Male | Count of Participants | Participants |
|
| Region of Enrollment | Count of Participants | Participants |
|
|
|
| Secondary | Right Heart Dysfunction | Right Heart Dysfunction was measured as mean of Right Ventricular Stroke Work Index (RVSWI) for the initial 8 hours after admission to the Intensive Care Unit (ICU). RVSWI is measured as the difference in mean pulmonary artery pressure (MPAP) and central venous pressure (CVP), divided by the cardiac index (CI): [(MPAP-CVP) / CI]. Normal range for RVSWI is 5-10 g/m. | Posted | Mean | Full Range | g/m | 8 hours (upon arrival at ICU, and after 4 successive 2 hour treatments with 1. iNO only, 2. iNO+iPGI2 (1st), 3. iPGI2 only, and 4. iNO+iPGI2 (2nd)) |
|
|
|
| Secondary | Systemic Vascular Resistance (SVR) | Systemic Vascular Resistance (SVR) was measured as mean of Systemic Vascular Resistance (SVR) for the initial 8 hours after admission to the Intensive Care Unit (ICU). Normal range for SVR is 800-1200 dynes/sec/cm5. | Posted | Mean | Full Range | dynes/sec/cm^5 | 8 hours (upon arrival at ICU, and after 4 successive 2 hour treatments with 1. iNO only, 2. iNO+iPGI2 (1st), 3. iPGI2 only, and 4. iNO+iPGI2 (2nd)) |
|
|
|
| Secondary | Central Venous Pressure (CVP) | Central Venous Pressure (CVP) was measured as mean of CVP for the initial 8 hours after admission to the Intensive Care Unit (ICU). Normal range for CVP is 3-8 mmHg. | Posted | Mean | Full Range | mmHg | 8 hours (upon arrival at ICU, and after 4 successive 2 hour treatments with 1. iNO only, 2. iNO+iPGI2 (1st), 3. iPGI2 only, and 4. iNO+iPGI2 (2nd)) |
|
|
|
| Secondary | Mean Arterial Pressure (MAP) | Mean Arterial Pressure (MAP) was measured as mean of MAP for the initial 8 hours after admission to the Intensive Care Unit (ICU). Normal range for MAP is 70-110 mmHg. | Posted | Mean | Full Range | mmHg | 8 hours (upon arrival at ICU, and after 4 successive 2 hour treatments with 1. iNO only, 2. iNO+iPGI2 (1st), 3. iPGI2 only, and 4. iNO+iPGI2 (2nd)) |
|
|
|
| Secondary | Heart Rate | Heart Rate was measured as mean of Heart Rate for the initial 8 hours after admission to the Intensive Care Unit (ICU). Normal range for heart rate is generally 60 to 100 beats per minutes in adults, but this can vary. | Posted | Mean | Full Range | beats/minute | 8 hours (upon arrival at ICU, and after 4 successive 2 hour treatments with 1. iNO only, 2. iNO+iPGI2 (1st), 3. iPGI2 only, and 4. iNO+iPGI2 (2nd)) |
|
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|
| 0 |
| 14 |
| 0 |
| 14 |
| 0 |
| 14 |
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| D006973 |
| Hypertension |
| D014652 | Vascular Diseases |
| D017672 |
| Nitrogen Compounds |
| D010087 | Oxides |
| D017601 | Oxygen Compounds |
| D009930 | Organic Chemicals |
| D014665 | Vasodilator Agents |
| D002317 | Cardiovascular Agents |
| D045506 | Therapeutic Uses |
| D020228 | Pharmacologic Actions |
| D020164 | Chemical Actions and Uses |
| D044062 | Prostaglandins I |
| D011453 | Prostaglandins |
| D015777 | Eicosanoids |
| D005231 | Fatty Acids, Unsaturated |
| D005227 | Fatty Acids |
| D008055 | Lipids |
| D012898 | Autacoids |
| D018836 | Inflammation Mediators |
| D001685 | Biological Factors |
| Title | Measurements |
|---|---|
|
| Following iPGI2 |
|
| Following iNO+iPGI2 (2nd) |
|
| Title | Measurements |
|---|---|
|
| Following iPGI2 |
|
| Following iNO+iPGI2 (2nd) |
|
| Title | Measurements |
|---|---|
|
| Following iPGI2 |
|
| Following iNO+iPGI2 (2nd) |
|
| Title | Measurements |
|---|---|
|
| Following iPGI2 |
|
| Following iNO+iPGI2 (2nd) |
|
| Title | Measurements |
|---|---|
|
| Following iPGI2 |
|
| Following iNO+iPGI2 (2nd) |
|