手术前的被动静脉压力驱动的心脏功能决定了左心室辅助器件的结果
Paul C Tang1, Jessica Millar2, Pierre Emmanuel Noly3
1Department of Cardiac Surgery, University of Michigan Frankel Cardiovascular Center, Ann Arbor, Mich; Department of Cardiovascular Surgery, Mayo Clinic, Rochester, Minn.
The Journal of thoracic and cardiovascular surgery
|July 26, 2023
概括
在左心室辅助装置 (LVAD) 植入之前,被动心脏指数 (PasCI) 升高表明死亡和右心室衰竭的风险更高. 这一指标可以帮助预测心力衰竭患者的LVAD结果.
科学领域:
- 心脏病学 心脏病学
- 医疗器械 医疗器械
- 心脏衰竭研究研究
背景情况:
- 在心力衰竭中,右心输出可以通过增加全身静脉压力来补偿.
- 研究了被动心输出在左心室辅助装置 (LVAD) 植入后预测结果的能力.
研究的目的:
- 为了确定被动心输出的大小是否可以预测接收连续流LVAD的患者的结果.
- 确定被动心脏指数 (PasCI) 的值,预测两年内LVAD死亡.
主要方法:
- 对接受持续流动LVAD的383名患者的回顾性审查.
- 使用右心房压力,肺动脉平均压力,心脏总输出和身体表面积计算LVAD前被动心脏指数 (PasCI).
- 应用Youden J统计数据来确定预测LVAD死亡的PasCI值.
主要成果:
- 术前PasCI增加与生存率降低 (HR,2.27;P < .01) 和右心室衰竭 (RVF) 风险增加 (HR,3.46;P = .04) 相关.
- 术前PasCI≥0.5预测LVAD死亡,并与较差的存活率相关 (P = .02).
- 患有PasCI≥0.5的患者表现出更多心力衰竭再入院日和增加胃肠道出血的趋势,并且更有可能有多次心力衰竭再入院.
结论:
- 通过增加静脉压力增加右心输出量的增加会对末端器官功能产生负面影响,并增加心力衰竭再入院日.
- 在LVAD前的PasCI≥0.5与LVAD后的生存率降低和RVF增加有关.
- 当单独使用或在预测模型中使用时,PasCI指标可能会改善LVAD候选人与VR功能障碍的管理.
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