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Impact of type of mechanical circulatory support before transplant on postorthotopic heart transplantation infections.
The Journal of Heart and Lung Transplantation ( IF 6.4 ) Pub Date : 2024-10-10 , DOI: 10.1016/j.healun.2024.09.027
Caitlin A Trottier,Audrey Martino,Meghan I Short,Angie Mae Rodday,Andrew M Strand,Michael S Kiernan,Amanda R Vest,David R Snydman,Jennifer K Chow

BACKGROUND Infections after orthotopic heart transplantation (OHT) cause significant morbidity and mortality. Concurrent with increased pre-OHT temporary mechanical circulatory support (MCS), there have been recent concerns of a perceived increase in infections post-OHT. We examined the association between pre-OHT temporary versus durable MCS and post-OHT infection. METHODS We performed a single-center retrospective review of patients who received OHT at Tufts Medical Center between January 2014 and April 2022. Our composite outcome was the occurrence of bacteremia, invasive fungal infections, opportunistic infections, or skin/soft tissue infections of device sites within 1-year post-OHT. We used Cox proportional hazards models to assess the relationship between the type of pre-OHT MCS and time to the first infection, treating death from other causes as a competing risk. We addressed confounding with 2 statistical methods: propensity score (PS) with inverse probability weighting (IPW) and an instrumental variable (IV) analysis. RESULTS Of the 320 OHT recipients, 268 required MCS before OHT; 192 were managed with durable MCS and 76 with temporary MCS. Patients receiving pre-OHT temporary MCS had no difference in time to first infection (unadjusted hazard ratio [HR] 0.77, 95% CI 0.41-1.44) compared to durable MCS. Results were similar in the model employing PS with IPW (HR 0.61, 95% CI 0.29-1.27) and the IV analysis (HR 0.28, 95% CI 0.26-2.36). CONCLUSIONS Pre-OHT temporary MCS was not associated with the composite outcome of bacteremia, invasive fungal infections, opportunistic infections, or skin/device site infections post-OHT compared to durable MCS in this single-center cohort.

中文翻译:


移植前机械循环支持类型对原位心脏移植后感染的影响。



背景 原位心脏移植 (OHT) 后感染会导致显着的发病率和死亡率。在 OHT 前临时机械循环支持 (MCS) 增加的同时,最近人们担心 OHT 后感染的感知增加。我们检查了 OHT 前临时与持久 MCS 与 OHT 后感染之间的关联。方法 我们对 2014 年 1 月至 2022 年 4 月期间在塔夫茨医学中心接受 OHT 的患者进行了单中心回顾性评价。我们的综合结果是 OHT 后 1 年内发生菌血症、侵袭性真菌感染、机会性感染或器械部位的皮肤/软组织感染。我们使用 Cox 比例风险模型来评估 OHT 前 MCS 类型与首次感染时间之间的关系,将其他原因导致的死亡视为竞争风险。我们使用 2 种统计方法解决了混杂问题: 倾向评分 (PS) 与逆概率加权 (IPW) 和工具变量 (IV) 分析。结果 在 320 例 OHT 受者中,268 例在 OHT 之前需要 MCS;192 例使用持久 MCS 进行管理,76 例使用临时 MCS 进行管理。与耐久性 MCS 相比,接受 OHT 前临时 MCS 的患者在首次感染时间方面没有差异 (未调整的风险比 [HR] 0.77,95% CI 0.41-1.44)。采用 PS 和 IPW (HR 0.61,95% CI 0.29-1.27) 和 IV 分析 (HR 0.28,95% CI 0.26-2.36) 的模型结果相似。结论 在这个单中心队列中,与持久的 MCS 相比,OHT 前临时 MCS 与 OHT 后菌血症、侵袭性真菌感染、机会性感染或皮肤/设备部位感染的复合结局无关。
更新日期:2024-10-09
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