在直流透管大动脉植入后的长期随访:一个单一中心的经验
Dan M Prunea1,2, Raffael Geissler1, Alexandru Achim1,2
1Department of Cardiology, University Heart Center Graz, Medical University of Graz, Graz, Austria.
概括
直接流 (DF) 装置在透气管大动脉植入后 (TAVI) 显示出更高的初始梯度. 然而,长期随访显示,与其他TAVI设备相比,没有加速退化或更糟糕的结果.
科学领域:
- 心脏病学 心脏病学
- 生物医学工程 生物医学工程
- 干预心脏病学 干预心脏病学
背景情况:
- 过导管大动脉植入 (TAVI) 是对大动脉狭窄的关键治疗方法.
- 直流 (DF) 装置是一种聚合物TAVI选项,由于其材料特性和退化潜力,它提出了独特的挑战.
- 了解DF设备的长期性能对于优化患者选择和未来的门内程序至关重要.
研究的目的:
- 评估TAVI后的直流 (DF) 装置的长期退化倾向.
- 通过分析临床特征,心声学参数和整体存活率来评估DF设备的安全性和有效性.
- 为了比较DF植入的结果与接受其他商业TAVI设备的匹配患者队列.
主要方法:
- 一个单一中心注册研究包括了接受DF植入重症大动脉狭窄症的患者.
- 在基线和随访期间收集了临床和心声回声数据.
- 分析了整体存活率,并与接受替代TAVI设备的匹配队列进行了比较.
主要成果:
- 67名患者接受了DF植入 (平均年龄为83岁).
- 与参考组相比,DF设备的术后平均梯度显著更高 (16±8 mmHg vs. 8±3 mmHg).
- 在随访期间没有观察到残留梯度的显著进展,DF和参考组的整体存活率相似.
结论:
- 在TAVI后,DirectFlow设备会导致更高的初始跨膜梯度.
- 尽管梯度较高,但与其他TAVI器件相比,没有发现加速膜退化或较差的长期结果的证据.
- 进一步的研究可能是有必要的,以充分阐明聚合物TAVI门的长期行为.
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