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Surface ultrastructure of silicone rubber aortic valve poppetts after long-term implantation. A scanning electron microscope study of four poppets.

机译：长期植入后硅橡胶主动脉瓣的表面超微结构突然上升。四个提升阀的扫描电子显微镜研究。

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The surface ultrastructure, demonstrated by scanning electron microscopy, is described in four implanted Silastic aortic valve poppets. Ball variance was discovered at necropsy in two patients and clinically in one in whom the poppet was replaced. The fourth patient underwent reoperation, but ball variance was neither suspected nor found. All four poppets were densely coated with biological debris and microthrombi. The 'coat' was soluble in a weak solution of sodium hydroxide. The true Silastic surface beneath the coat was little altered compared with unimplanted poppets, even after 10 years' implantation.

机译：在四个植入的Silastic主动脉瓣提升阀中描述了通过扫描电子显微镜证实的表面超微结构。尸检时发现两名患者有球变异，临床上发现一名患者更换了提升阀。第四例患者接受了再次手术，但既未怀疑也未发现球变。所有四个提升阀都被生物碎片和微血栓致密地覆盖。该“涂层”可溶于稀氢氧化钠溶液。与未植入的提动阀芯相比，即使在植入10年后，皮下层的真实Silastic表面也几乎没有改变。

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期刊名称 Thorax
作者
S P Allwork; R Norton;
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年(卷),期 1976(31),6
年度 1976
页码 742–752
总页数 11
原文格式 PDF
正文语种
中图分类呼吸生理学;
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机译：用扫描电子显微镜研究不规则表面

Surface ultrastructure of silicone rubber aortic valve poppetts after long-term implantation. A scanning electron microscope study of four poppets.

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