Hartwig Matthew G, Snyder Laurie D, Finlen-Copeland Ashley, Lin Shu S, Zaas David W, Davis R Duane, Palmer Scott M
Division of Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina, USA.
Clin Transpl. 2009:197-210.
Clinical lung transplantation continues to grow worldwide. Advances in donor selection and management have been critical to support the expanded growth of lung transplant as a therapeutic option for patients with advanced lung disease. In recent years, allocation in the US has changed to a disease severity based system that has led to a dramatic reduction of deaths on the waiting list with concomitant increases in transplantation of recipients who are now sicker, older, and more likely to have interstitial lung disease. Increased experience with the LAS will help to further refine optimal recipient selection and balance urgency with utility. Our center's experience demonstrates survival is comparable post-LAS as compared to pre-LAS despite transplantation of increasingly ill recipients. After transplantation, the incidence of severe PGD has decreased in recent years with advances in donor lung management and perseveration. In cases of severe PGD, VV ECMO has provided our center with a successful method of supporting patients and reducing mortality immediately following transplantation. Long-term outcomes after lung transplantation continue to be limited by BOS, a condition of progressive allograft dysfunction. Our center has led research that identified gastric reflux as a potential contributing factor to posttransplant allograft dysfunction and suggested that Nissen fundoplication surgery might help prevent the development of BOS. Continued refinements in donor management and selection, prevention and treatment of PGD, and enhanced understanding of the mechanisms of BOS will support further growth of lung transplantation and further improvements in overall posttransplant outcomes.
临床肺移植在全球范围内持续增长。供体选择和管理方面的进展对于支持肺移植作为晚期肺病患者治疗选择的扩大增长至关重要。近年来,美国的分配方式已转变为基于疾病严重程度的系统,这导致等待名单上的死亡人数大幅减少,同时移植的受者病情更重、年龄更大且更有可能患有间质性肺病的情况有所增加。对肺分配评分(LAS)经验的增加将有助于进一步优化最佳受者选择,并在紧迫性与实用性之间取得平衡。我们中心的经验表明,尽管移植的受者病情日益严重,但LAS后的生存率与LAS前相当。近年来,随着供体肺管理和保存方面的进展,严重原发性移植肺功能障碍(PGD)的发生率有所下降。在严重PGD的病例中,静脉-静脉体外膜肺氧合(VV ECMO)为我们中心提供了一种成功支持患者并降低移植后即刻死亡率的方法。肺移植后的长期结果仍然受到闭塞性细支气管炎(BOS)的限制,BOS是一种移植肺功能进行性障碍的疾病。我们中心牵头的研究确定胃反流是移植后移植肺功能障碍的一个潜在促成因素,并表明nissen胃底折叠术可能有助于预防BOS的发展。供体管理和选择的持续改进、PGD的预防和治疗以及对BOS机制的深入理解将支持肺移植的进一步发展,并进一步改善移植后的总体结果。