我们从解释的外围支架分析中学到了什么?
Salomé H Kuntz1,2,3, Arielle Bellissard1,2,3, Aloke V Finn1,4
1CVPath Institute, Gaithersburg, MD, USA.
概括
对人类外周支架的分析揭示了他们体内行为的最小数据. 延迟愈合是不同动脉床的支架失败的常见原因,强调需要更多的病理数据.
科学领域:
- 血管外科 血管外科
- 心血管病理学心血管病理学
- 生物材料科学 生物材料科学
背景情况:
- 目前用于内血管器械的体外和动物模型无法准确预测人类的性能.
- 对外围支架的直接体内分析具有挑战性,需要对已扩展的设备进行研究.
- 了解扩展式支架的行为对于识别长期并发症和改进设备设计至关重要.
研究的目的:
- 审查和总结现有关于外周动脉阻塞性疾病 (PAOD) 的人类患者从外周支架移植的病理分析的现有知识.
- 在体内确定外围支架的常见故障模式和愈合特征.
主要方法:
- 使用MEDLINE和EMBASE数据库进行了描述性的文献审查.
- 搜索策略结合了MeSH术语:"外围支架", "组织学", "支架", "病理学", "新动脉样硬化"和"扩展".
- 搜索没有时间限制.
主要成果:
- 鉴定了18个出版物,重点是大腿骨 (9),下骨 (4) 和大脑动脉 (5) 支架;没有发现关于关节下,脊椎或脏支架的报道.
- 在42个病例中对58种器件的分析显示,失效率很高:74.1%的股骨,82%的阴回,50%的带支架.
- 常见的失败机制包括延迟愈合 (所有病床),内脏化和支架完整性 (股骨),以及致的脂质丰富的死核.
结论:
- 关于外围支架在人体体内体内表现的病理学数据显著缺乏.
- 延迟愈合是外围支架失败的一个普遍因素,无论动脉位置如何.
- 对扩展的外围支架进行更大规模的分析对于改善设备设计和患者的治疗结果至关重要,而斑块表征是治疗选择的关键.
相关概念视频
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