Ischemia-Reperfusion Injury
Conditions
Keywords
Ischemia-reperfusion lung injury, IRLI
Brief summary
The purpose of this study is to evaluate the effects of inhaled nitric oxide on both short-term physiology as well as on the development of ischemia-reperfusion lung injury (IRLI) in the immediate post transplant period. The specific hypothesis is that inhaled NO post lung transplantation will improve gas exchange/hemodynamic and thus reduce the development of post transplant IRLI.
Detailed description
The objective is to determine the role of inhaled NO in the prevention/treatment of IRLI in lung transplant patients. The plan is to accomplish this objective in 2 phases: Phase 1 - patients immediately post transplant will have a variety of physiologic measurements performed while breathing 0, 10, and 20 ppm inhaled NO. For the next 24 hours they will be kept on a mixture providing the best oxygen delivery and pulmonary artery pressure. Our specific aims in this phase are to characterize physiologic responses to inhaled NO and determine the incidence of IRLI in these patients over 24 hours. Phase 2 - patients immediately post transplant will be randomized to either INO or placebo gas and followed for 24 hours. Our specific aim in this phase is to compare the rate of development of IRLI in the two groups.
Interventions
Either 10 or 20 ppm of inhaled nitric oxide for 24 hour post transplant
Placebo gas will be given at 10 or 20 ppm for 24 hours post transplant
Sponsors
Study design
Eligibility
Inclusion criteria
* Patients undergoing lung transplantation
Exclusion criteria
* Participation in other experimental protocols
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| arterial and mixed venous blood gases | first 4 hours post transplant |
| pulmonary vascular pressures | first 4 hours post transplant |
Secondary
| Measure | Time frame |
|---|---|
| cardiac output | first 4 hours post transplant |
| systemic hemodynamics | first 4 hours post transplant |
| NO2 and NO concentrations | duration of treatment |
Countries
United States