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低输血强度比与中等血管封闭的随访心脏病发作体积有关:一个多中心跨国研究
Vivek Yedavalli1, Hamza Adel Salim2, Dhairya Lakhani3
1Department of Radiology, Division of Neuroradiology, Johns Hopkins Medical Center, Baltimore, MD, USA.
概括
低 perfusion 强度比 (HIR) 预测中等血管封闭 (MeVO) 中的大型心脏病发作体积. 这种成像标志物可以指导治疗,并预测急性缺血性中风患者的结果.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 心血管医学 心血管医学
背景情况:
- 中等血管封闭 (MeVO) 是急性缺血性中风 (AIS) 的重要原因之一.
- 额外循环评估对于预测中风进展至关重要.
- 低 perfusion 强度比 (HIR) 已为大型血管封闭建立,但未在 MeVO.研究.
研究的目的:
- 为了评估HIR在MeVO患者的预后价值.
- 为了确定HIR是否预测MeVO中的随访心脏病发作量 (FIV).
- 探索HIR作为MeVO治疗指南的潜在成像生物标志物.
主要方法:
- 对147名MeVO患者进行了机械血栓切除术的回顾性多中心研究.
- 分析了手术前CT输液和手术后12-36小时的随访成像 (CT/MRI).
- 单变量和多变量回归模型确定了FIV的预测因素,其中HIR是主要变量.
主要成果:
- 在无变量分析中,更高的HIR与更大的FIV显著相关 (β = 80mL; p < 0.001).
- 在调整了混因子后,HIR仍然是FIV的独立预测因子 (β = 40mL; p < 0.001).
- Tmax>10s体积显示了与FIV最强的相关性 (r = 0.56; p < 0.001).
结论:
- 在MeVO中,增加的HIR与较大的心脏病发作量相关.
- 附带失败,由HIR表示,在MeVO中起着预后作用.
- HIR是一种潜在的成像生物标志物,用于指导治疗和预测MeVO相关AIS的结果.
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