Ischemic preconditioning enhances donor lung preservation in canine lung transplantation.

作者：G Li, S Chen, Wenjing Lou, Erxiong Lu · 发表于：PubMed · 年份：1998 · 被引用次数：7 · 研究领域：Transplantation: Methods and Outcomes、Organ Transplantation Techniques and Outcomes、Cardiac Ischemia and Reperfusion

OBJECTIVE: To prove the protective effect of lung ischemic preconditioning on enhancing the canine lung preservation and reducing allograft lung dysfunction after transplantation. METHODS: Ten pairs of adult canines underwent left lung allotransplantation. Five donors were treated with ischemic preconditioning [their left hilus was clamped for 10 minutes and released for 15 minutes (Group IP)], and five donors were not treated with ischemic preconditioning (Group C). The donor lungs were flushed with 4 degrees C Euro-Collin's solution (ECS) and stored in the same solution for two and a half hour, then transplanted to the recipient canines, who were observed for one to two hours after transplantation. The lung venous blood of the recipient and the donor lung tissue were collected just after thoracotomy and one hour after reperfusion of the transplanted lung in both groups. RESULTS: The number of polymorphonuclear (PMN) was significantly higher in Group IP than in Group C (P < 0.05). However, the number of PMN in lung interstitium under microscope was less in Group IP than in Group C. The thromboxane (TXB2), malondialdehyde (MDA) and mean pulmonary artery pressure (MPAP) contents were significantly lower in Group IP than in Group C (P < 0.05). The superoxide dismutase (SOD) and the lung venous blood oxygen tension (PvO2) contents were significantly higher in Group IP than in Group C (P < 0.05). Histological findings showed less damages in Group IP than in Group C. CONCLUSIONS: ...