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:
影响因子:
--
通讯作者:
Cowger JA
中科院分区:
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
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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