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Bridge to simultaneous heart-kidney transplantation via extracorporeal life support: National outcomes in the new heart allocation policy era.
The Journal of Heart and Lung Transplantation ( IF 6.4 ) Pub Date : 2024-09-06 , DOI: 10.1016/j.healun.2024.08.020 Iris Feng 1 , Paul A Kurlansky 2 , Yanling Zhao 1 , Krushang Patel 1 , Morgan K Moroi 1 , Alice V Vinogradsky 1 , Farhana Latif 3 , Gabriel Sayer 3 , Nir Uriel 3 , Yoshifumi Naka 1 , Koji Takeda 1
The Journal of Heart and Lung Transplantation ( IF 6.4 ) Pub Date : 2024-09-06 , DOI: 10.1016/j.healun.2024.08.020 Iris Feng 1 , Paul A Kurlansky 2 , Yanling Zhao 1 , Krushang Patel 1 , Morgan K Moroi 1 , Alice V Vinogradsky 1 , Farhana Latif 3 , Gabriel Sayer 3 , Nir Uriel 3 , Yoshifumi Naka 1 , Koji Takeda 1
Affiliation
BACKGROUND
Since United Network for Organ Sharing (UNOS) revised their heart allocation policy in 2018, usage of veno-arterial extracorporeal life support (VA-ECLS) has dramatically increased as a bridge to transplant. This study investigated outcomes of VA-ECLS patients bridged to simultaneous heart-kidney transplant (SHK) in the new policy era.
METHODS
This study included 774 adult patients from the UNOS database who received SHK between 10/18/18 and 12/31/21 and compared patients bridged to transplant on VA-ECLS (n = 50) with those not bridged (n = 724).
RESULTS
At baseline, SHK recipients bridged from VA-ECLS were younger (50.5 vs 58.0 years, p = 0.007), had higher estimated glomerular filtration rate (eGFR) at time of transplant (47.6 vs 30.1, p < 0.001), and spent fewer days on the waitlist (7.0 vs 33.5 days, p < 0.001). In the perioperative period, VA-ECLS was associated with higher rates of temporary dialysis (56.0% vs 28.0%, p < 0.001) but similar 2-year cumulative incidence of chronic dialysis (7.5% vs 5.4%, p = 0.800) and renal allograft failure (12.0% vs 8.1%, p = 0.500) compared to non-ECLS cohort. However, VA-ECLS patients had decreased survival to discharge (76.0% vs 92.7%, p < 0.001) and 2-year post-transplant survival (71.7% vs 83.0%, p = 0.004), as well as greater 2-year cumulative incidence of cardiac allograft failure (10.0% vs 2.7%, p = 0.002). Multivariable analyses found VA-ECLS at time of transplant to be independently associated with 2-year post-transplant mortality (HR [95% CI]: 3.40 [1.66-6.96], p = 0.001) and cardiac allograft failure (sub-distribution hazard ratio [SHR] [95% CI]: 8.51 [2.77-26.09], p < 0.001).
CONCLUSION
Under the new allocation policy, patients bridged to SHK from VA-ECLS displayed greater early mortality and cardiac allograft failure but similar renal outcomes compared to non-ECLS counterparts.
中文翻译:
通过体外生命支持实现同步心肾移植的桥梁:新心脏分配政策时代的国家结果。
背景 自器官共享联合网络 (UNOS) 于 2018 年修订其心脏分配政策以来,静脉-动脉体外生命支持 (VA-ECLS) 的使用作为移植的桥梁急剧增加。本研究调查了新政策时代桥接心肾同步移植 (SHK) 的 VA-ECLS 患者的结局。方法 本研究包括来自 UNOS 数据库的 774 名成年患者,他们在 18 年 10 月 18 日至 12 年 31 日之间接受 SHK,并将 VA-ECLS 桥接移植的患者 (n = 50) 与未桥接的患者 (n = 724) 进行了比较。结果 在基线时,从 VA-ECLS 桥接的 SHK 受者更年轻 (50.5 vs 58.0 岁,p = 0.007),移植时估计肾小球滤过率 (eGFR) 较高 (47.6 vs 30.1,p < 0.001),并且在等待名单上花费的时间更少 (7.0 vs 33.5 天,p < 0.001)。在围手术期,VA-ECLS 与较高的临时透析率 (56.0% vs 28.0%,p < 0.001) 相关,但慢性透析的 2 年累积发生率相似 (7.5% vs 5.4%,p = 0.800) 和肾同种异体移植物衰竭 (12.0% vs 8.1%,p = 0.500) 与非 ECLS 队列相比。然而,VA-ECLS 患者的出院生存率降低 (76.0% vs 92.7%,p < 0.001) 和移植后 2 年生存率 (71.7% vs 83.0%,p = 0.004),以及更高的 2 年同种异体移植心衰竭累积发生率 (10.0% vs 2.7%,p = 0.002)。多变量分析发现,移植时的 VA-ECLS 与移植后 2 年死亡率 (HR [95% CI]: 3.40 [1.66-6.96],p = 0.001) 和同种异体移植物心力衰竭 (亚分布风险比 [SHR] [95% CI]: 8.51 [2.77-26.09],p < 0.001)独立相关。 结论 根据新的分配政策,与非 ECLS 患者相比,从 VA-ECLS 桥接到 SHK 的患者表现出更高的早期死亡率和同种异体移植心脏衰竭,但肾脏结局相似。
更新日期:2024-09-06
中文翻译:
通过体外生命支持实现同步心肾移植的桥梁:新心脏分配政策时代的国家结果。
背景 自器官共享联合网络 (UNOS) 于 2018 年修订其心脏分配政策以来,静脉-动脉体外生命支持 (VA-ECLS) 的使用作为移植的桥梁急剧增加。本研究调查了新政策时代桥接心肾同步移植 (SHK) 的 VA-ECLS 患者的结局。方法 本研究包括来自 UNOS 数据库的 774 名成年患者,他们在 18 年 10 月 18 日至 12 年 31 日之间接受 SHK,并将 VA-ECLS 桥接移植的患者 (n = 50) 与未桥接的患者 (n = 724) 进行了比较。结果 在基线时,从 VA-ECLS 桥接的 SHK 受者更年轻 (50.5 vs 58.0 岁,p = 0.007),移植时估计肾小球滤过率 (eGFR) 较高 (47.6 vs 30.1,p < 0.001),并且在等待名单上花费的时间更少 (7.0 vs 33.5 天,p < 0.001)。在围手术期,VA-ECLS 与较高的临时透析率 (56.0% vs 28.0%,p < 0.001) 相关,但慢性透析的 2 年累积发生率相似 (7.5% vs 5.4%,p = 0.800) 和肾同种异体移植物衰竭 (12.0% vs 8.1%,p = 0.500) 与非 ECLS 队列相比。然而,VA-ECLS 患者的出院生存率降低 (76.0% vs 92.7%,p < 0.001) 和移植后 2 年生存率 (71.7% vs 83.0%,p = 0.004),以及更高的 2 年同种异体移植心衰竭累积发生率 (10.0% vs 2.7%,p = 0.002)。多变量分析发现,移植时的 VA-ECLS 与移植后 2 年死亡率 (HR [95% CI]: 3.40 [1.66-6.96],p = 0.001) 和同种异体移植物心力衰竭 (亚分布风险比 [SHR] [95% CI]: 8.51 [2.77-26.09],p < 0.001)独立相关。 结论 根据新的分配政策,与非 ECLS 患者相比,从 VA-ECLS 桥接到 SHK 的患者表现出更高的早期死亡率和同种异体移植心脏衰竭,但肾脏结局相似。