药物涂层球囊微粒兔肾栓塞风险的探讨
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(先健科技(深圳)有限公司,深圳 518063)

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Q95-33

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Exploration of the risk of renal embolization caused by drug-coated balloon particles in rabbits
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(Lifetech Scientific (Shenzhen) Co., Ltd. Shenzhen 518063, China)

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    摘要:

    目的 建立体内模型评估药物涂层球囊在动物体内是否有微粒栓塞的风险,探索闭塞血管直径与涂层粒径的关系。方法 股动脉入路,用裸球囊封堵腹主动脉远心端,将药物涂层球囊输送至兔腹主动脉,在腹主动脉近心端扩张,随访观察双肾是否有典型血管梗塞的组织坏死现象。结果 异常肾主要表现是体积萎缩,表面布满凹坑,粗糙。切片染色发现肾小球充血、无核、细胞核溶解、纤维化、炎性细胞聚集等。肾坏死的病理历程从皮质到髓质,程度与剂量有关,且随时间未见有自愈好转。结论 设计的动物模型较灵敏,可以用来评估药物球囊在体内的栓塞风险。

    Abstract:

    Objective To establish an in vivo model to assess the risk of particle embolization of drug-coated balloons in animals, and to explore the relationship between the diameter of occluded vessels and the particle size of the coating. Methods The distal end of abdominal aorta was blocked with a bare balloon, and then a drug coated balloon catheter was delivered into the abdominal aorta of the rabbit and dilated at the proximal end to observe whether the kidneys had tissue necrosis caused by typical vascular embolization. Results Abnormal lesions of the kidneys are mainly characterized by volume shrinkage, pits, and roughness. Histological examination showed glomerular congestion, loss of cell nuclei and karyolysis, fibrosis, and inflammatory cell infiltration. The pathological process of renal necrosis occurred from the cortex to the medulla, the extent of necrosis was related to the dose, and there was no improvement by self-healing over time. Conclusions The rabbit model we designed is sensitive and can be used to assess the risk of embolization from drug-coated balloons in the body.

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宋精忠,龙汉,刘艳芬,王阁奇,江巍,王刚.药物涂层球囊微粒兔肾栓塞风险的探讨[J].中国实验动物学报,2019,27(1):79~84.

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  • 收稿日期:2018-09-14
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  • 在线发布日期: 2019-03-06
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