概括
用Starr-Edwards假肢或支架式同体移植替换大动脉缩短了血小板存活时间,增加了血栓栓塞的风险. 直接同体移植不会影响血小板存活率,这表明它们是预防血栓形成的更安全的替代方案.
科学领域:
- 心血管外科心血管外科
- 血液学 血液学 血液学
- 生物材料科学 生物材料科学
背景情况:
- 血栓塞栓症是大动脉置换 (AVR) 后的一个重大并发症.
- 以前的研究将血小板存活时间缩短与 mitra 患者的血栓栓塞相关.
- 这项研究调查了因大动脉病而接受AVR的患者的血小板存活率.
研究的目的:
- 在AVR之前和之后,测量大动脉病患者的血小板存活时间.
- 为了比较不同假体门和同移植类型的血小板存活时间.
- 确定血小板存活时间和AVR后的血栓栓塞事件之间的相关性.
主要方法:
- 使用-51方法测量了73名患有大动脉病的患者的血小板存活时间.
- 在手术前和AVR后,使用各种假肢 (Starr-Edwards模型) 和大动脉同移植 (支架和直接) 进行了测量.
- 血小板存活率与血栓栓塞病史和血小板抑制疗法相关分析.
主要成果:
- 手术前血小板存活率正常 (3.4±0.14天).
- 斯塔尔-爱德华兹假肢和支架性大动脉同移植显著缩短了血小板存活时间 (2.53.0天,P < 0.001).
- 直接合的大动脉同位移植维持了正常的血小板存活率 (3.7 ± 0.24天).
- 患有斯塔尔-爱德华兹假肢和血栓栓塞病史的患者血小板存活时间显著缩短 (2.7 ± 0.12天,P < 0.001).
- 血小板抑制剂治疗改善了患有Starr-Edwards装置和血栓塞栓症的患者的血小板存活率.
结论:
- 斯塔尔-爱德华兹门和支架的大动脉同移植改变了血小板存活率,增加了血栓栓塞的风险.
- 直接合的大动脉同位移植似乎不会影响血小板存活率.
- 血小板存活时间缩短与AVR后的血栓栓塞事件相关,特别是在某些假肢设备上.
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