比瓦利鲁丁-水凝涂层的聚乙烯化物在体外膜氧化对抗凝固的抗凝固
Wenqing Gao1,2,3,4, Hechen Shen1,2,4,5, Yun Chang1,2,3,4
1Department of Cardiac Center, Tianjin Third Central Hospital, Tianjin, China.
Frontiers in cardiovascular medicine
|January 1, 2024
概括
一种新的凝甲基酸水凝涂层与Bivalirudin (BV) 为医疗器械提供了卓越的抗凝作用. 与传统的肝素相比,这种BV-Coating GelMA水凝降低了出血风险,提高了体外膜氧化 (ECMO) 的安全性.
科学领域:
- 生物材料科学 生物材料科学
- 医疗设备工程 医疗设备工程
- 药理学 药理学是指药理学的学科.
背景情况:
- 血栓塞栓事件是体外膜氧化 (ECMO) 治疗期间的常见并发症.
- 氨酸涂层是ECMO的标准表面修饰,但它有相关的并发症.
- 比瓦利鲁丁 (BV) 是一种直接的血栓抑制剂,具有较少的不良反应和比肝素更好的药理动力学.
研究的目的:
- 开发和评估用于接触血液的医疗器械的新型水凝涂层.
- 评估用于ECMO应用的纳入凝甲基酸盐 (GelMA) 水凝涂层中的比瓦利鲁丁 (BV) 的疗效和安全性.
主要方法:
- 在聚乙烯 (PVC) 管道上合成了含有Bivalirudin (BV) 的凝甲酸水凝 (GelMA) 涂层.
- 评估药物释放,显示在7天内几乎完全释放.
- 进行了实验室模拟的体外循环和体内子关动脉绕试验.
主要成果:
- 在模拟和动物模型中,BV-GelMA水凝涂层显示出优异的抗凝剂功效.
- 系统性抗凝剂测定证实,该涂层不会改变系统凝血水平.
- 与静脉注射抗凝剂相比,该涂层显著降低了出血并发症的风险.
结论:
- BV-Coating GelMA 水凝具有卓越的生物相容性和抗凝性能.
- 这种新型涂层代表了血液接触医疗器械的最佳表面修饰,特别是ECMO.
- 开发的水凝涂层为传统的基于肝素的抗凝策略提供了更安全的替代方案.
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