改良的大鼠左肺原位移植模型

The Improvements in Establishment of Rat Orthotopic Left Lung Transplantation Model

目的改进套管吻合技术,建立一种更为简单有效的大鼠左肺原位移植模型。方法将136只雄性SD大鼠随机分为供者(68只)、受者(68只),采用改良的套管吻合技术完成左肺原位移植。结果供肺由灌注到摘取时间为13±2min,供肺完成体外套管所需时间为9±1min,供受者完成肺动静脉和支气管吻合所需时间为10±1min,手术时间60±3min。肺移植手术成功60只(88%),手术失败8只,其中吻合口漏血1只,肺淤血3只,肺复张不佳4只。术后存活时间最短为1d,存活12d53只。手术成功的大鼠术后10d行胸部CT扫描提示左肺复张良好,血气分析显示肺功能正常。结论改良的三袖套管吻合法是一种简单有效、经济实用的吻合方法,可以成功、有效地建立大鼠左肺原位移植模型。

Objective To establish a simple, valid rat orthotopic left lung transplantation model with the improved operation technique. Methods One hundred and thirty-six male SD rats were randomly divided into donor （n = 68） and recipient （n = 68）, transplantation were performed by using the improved cuff anastomosis technique. Results Time of donor lung perfusion-picking, donor lung vessel cuff anastomosis and recipient vessel anastomosis was 13±2 min, 9±1 min, 10±1 min respectively, the operative time was 60±3 min. In 68 rats of operations, successful rate was 88%（60/68）, anastomotic stoma leak in one rat, lung congestion 3 rats, lung atelectasis 4 rats. The shortest survival time was 1 day, there were 53 rats whose survival time was longer than 12 days. The chest computed tomography showed no atelectasis and blood gas analysis manifested good respiratory function. Conclusion The improved three cuff anastomosis technique offers a simple, valid, cheap and useful method,it can establish rat orthotopic left lung transplantation model successfully.