Long-term survival on LVAD support: Device complications and end-organ dysfunction limit long-term success.

Long-term survival on LVAD support: Device complications and end-organ dysfunction limit long-term success.
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DOI:
10.1016/j.healun.2021.07.011
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发表时间:
2022-03
期刊:
The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation
影响因子:
--
通讯作者:
Cowger JA
Cowger JA
中科院分区:
其他
文献类型:
--
作者:
Hariri IM;Dardas T;Kanwar M;Cogswell R;Gosev I;Molina E;Myers SL;Kirklin JK;Shah P;Pagani FD;Cowger JA

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术前变量可以预测短期左心室辅助装置(LVAD)的生存,但长期生存的预测因素仍然没有充分的特点。Intermacs登记研究中接受LVAD植入术(2012- 2018年)的患者根据支持时间分组:短期(<1年(Y),n=7483)、中期(MT,1-3年,n=5976)和长期(LT,≥3年,n=3015)。进行了标志性风险分析(调整后的风险比,HR),以确定支持1年和3年后生存的相关性。存活1年后,老年(HR 1.15/10)、白人(HR 1.22)和未婚(HR 1.16)患者的LVAD额外存活率较低(p< 0.05)。经过3年的支持,只有3个术前特征(年龄、种族和搭桥手术史,p< 0.05)与延长生存期相关。术后事件对实现LT生存率的影响最大。在存活1年或3年的患者中,(肌酐HR MT=1.09; LT HR=1.10/mg/dL)和肝功能障碍(AST HR MT=1.29; LT HR=1.34/100 IU),卒中(MT HR=1.24; LT HR=1.42)、感染(MT HR=1.13; LT HR=1.10)和/或器械故障(MT HR=1.22; LT HR=1.46)降低了延长生存期(所有p ≤0.03)。LVAD治疗的成功取决于更多受者的长期生存。1年后,不良事件和术后终末器官功能障碍的发生严重限制了延长生存期。目标治疗意图的增长要求未来的LVAD研究设计有足够的随访,以捕获超过24个月的结局。
Preoperative variables can predict short term left ventricular assist device (LVAD) survival, but predictors of extended survival remain insufficiently characterized. Patients undergoing LVAD implant (2012–18) in the Intermacs registry were grouped according to time on support: short-term (<1 year (Y), n=7483), mid-term (MT, 1–3 Ys, n=5976) and long-term (LT, ≥3 Ys, n=3015). Landmarked hazard analyses (adjusted hazard ratio, HR) were performed to identify correlates of survival after 1 and 3 Ys of support. After surviving 1 Y of support, additional LVAD survival was less likely in older (HR 1.15 per decade), Caucasian (HR 1.22) and unmarried (HR 1.16) patients (p< 0.05). After 3 Y of support, only 3 preoperative characteristics (age, race, and history of bypass surgery, p< 0.05) correlated with extended survival. Postoperative events most negatively influenced achieving LT survival. In those alive at 1Y or 3Ys, the occurrence of postoperative renal (creatinine HR MT=1.09; LT HR=1.10 per mg/dL) and hepatic dysfunction (AST HR MT=1.29; LT HR=1.34 per 100 IU), stroke (MT HR=1.24; LT HR=1.42), infection (MT HR=1.13; LT HR=1.10), and/or device malfunction (MT HR=1.22; LT HR=1.46) reduced extended survival (all p ≤0.03). Success with LVAD therapy hinges on achieving long term survival in more recipients. After 1 year, extended survival is heavily constrained by the occurrence of adverse events and postoperative end-organ dysfunction. The growth of destination therapy intent mandates that future LVAD studies be designed with follow up sufficient for capturing outcomes beyond 24 months.
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