The lungs retrieved from the brain dead multi organ donor will be placed in a lab . They will be connected to a ventilator and preservative solution will be circulated through it . Blood will be added to the fluid depending on the group to which the lungs are allocated and its effects on lung function will be seen

The lungs of a brain dead multi organ donor will be retrieved according to standard protocol. Once a decision is made not to transplant the lungs either because of not satisfying ideal criteria or in the absence of a potential recipient they will be included in the study.They will be ventilated optimally and connected to a cardiopulmonary bypass machine for circulating preservative solution through it . Red blood cells will be added to the solution either initially or later depending on the group to which it is allocated .Monitoring of mechanical and gas exchange function and pathological examination of the lungs will be performed at various time points to observe the effect of red blood cells. The lungs will be properly discarded at the end of the procedure and will not be used for transplantation.

Inclusion Criteria:

• Brain death certified multi organ donor
• Absence of ideal lung donor criteria or absence of suitable lung recipient

Exclusion Criteria:

• presence of severe mechanical lung injury on visual inspection or radiography
• Presence of pneumonia
• Positive serology ( Hepatitis B,C and HIV