Ibrahim Moheb, Hendry Paul, Masters Roy, Rubens Fraser, Lam B-Khanh, Ruel Marc, Davies Ross, Haddad Haissam, Veinot John P, Mesana Thierry
Section of Cardiac Surgery, St. Boniface General Hospital, Winnipeg, Manitoba, Canada.
Can J Cardiol. 2007 Apr;23(5):363-7. doi: 10.1016/s0828-282x(07)70769-9.
Early graft failure is associated with high mortality and is the main cause of death within the first 30 days after transplantation. The purpose of the present study was to examine the investigators' experience of severe perioperative acute graft failure and to review the literature.
Nine of 385 cardiac transplants (2.3%) performed from 1984 through 2005 developed severe perioperative acute graft failure either in the operating room or within 24 h after cardiac transplantation. Four patients had primary graft failure, two had right heart failure secondary to pulmonary hypertension, one had hyperacute rejection, one had accelerated acute rejection and one possibly sustained a particulate coronary embolus intraoperatively.
All except the two patients who had right heart failure secondary to pulmonary hypertension received mechanical circulatory support. Three patients were supported with total artificial hearts, two patients received a left ventricular assist device, one patient was supported with extracorporeal life support followed by a right ventricular assist device when the left ventricle recovered, and one patient was supported for several hours with cardiopulmonary bypass. Three patients were retransplanted after mechanical circulatory support, but only one survived. Only one of the nine patients (11%) survived; this patient was supported with a total artificial heart followed by retransplantation.
The outcome of severe perioperative acute graft failure is very poor. Mechanical circulatory support and retransplantation are not as successful as in other situations. Due to the shortage of donors and poor outcomes, retransplantation for hyperacute rejection is not advisable.
早期移植物功能衰竭与高死亡率相关,是移植后30天内死亡的主要原因。本研究的目的是探讨研究人员对严重围手术期急性移植物功能衰竭的经验并回顾相关文献。
1984年至2005年进行的385例心脏移植中有9例(2.3%)在手术室或心脏移植后24小时内发生严重围手术期急性移植物功能衰竭。4例发生原发性移植物功能衰竭,2例因肺动脉高压继发右心衰竭,1例发生超急性排斥反应,1例发生加速性急性排斥反应,1例术中可能发生颗粒性冠状动脉栓塞。
除2例因肺动脉高压继发右心衰竭的患者外,所有患者均接受了机械循环支持。3例患者使用全人工心脏支持,2例患者接受左心室辅助装置,1例患者先接受体外生命支持,左心室恢复后再接受右心室辅助装置,1例患者接受了数小时的体外循环支持。3例患者在机械循环支持后再次移植,但仅1例存活。9例患者中仅1例(11%)存活;该患者先使用全人工心脏支持,随后进行了再次移植。
严重围手术期急性移植物功能衰竭的预后非常差。机械循环支持和再次移植不像在其他情况下那样成功。由于供体短缺和预后不佳,超急性排斥反应的再次移植不可取。