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大动脉置换后休息和运动期间的血液动力学性能:肺自移植与大动脉同移植的比较.

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  • 1Quebec Heart Institute/Laval Hospital, Laval University, Ste-Foy, Quebec, Canada.

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罗斯手术与大动脉同移植相比,提供了优越的大动脉血液动力学,但存在肺同移植狭窄的风险. 为了获得长期的结果,需要进一步的研究.

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科学领域:

  • 心血管外科心血管外科
  • 心脏门更换 心脏门更换
  • 血液动力学 血液动力学

背景情况:

  • 罗斯手术和大动脉同移植是大动脉置换的既定方法.
  • 这两种技术都显示出有利的血液动力学性能.
  • 直接比较的研究是有限的.

研究的目的:

  • 为了比较罗斯手术与大动脉同移植手术的血液动力学性能.
  • 为了评估膜功能和梯度,直到5年后的前列动脉置换.

主要方法:

  • 在132名罗斯手术患者和111名大动脉同移植患者的顺序多普勒回声心脏学.
  • 评估大动脉反,有效孔面积 (EOA) 和跨膜梯度.
  • 在罗斯患者中评估肺同移植功能,并在两组中进行运动血液动力学.

主要成果:

  • 罗斯手术显示,1年后和运动期间,索引EOA显著增加,梯度降低.
  • 在这两组中,大动脉吐率都很低,很少需要重新手术.
  • 肺同移植狭窄发生在20%的罗斯患者中,在4例中需要重新手术.

结论:

  • 这两种大动脉置换方法都提供了出色的血液动力学.
  • 罗斯手术提供了血液动力学优势,但受到肺同种植物恶化的风险的影响.
  • 预防肺同移植狭窄的长期结果和策略需要进一步研究.