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  • Title: Modified ethoxyethyl cyanoacrylate for therapeutic embolization of arteriovenous malformation.
    Author: Tseng YC, Hyon SH, Ikada Y, Taki W, Uno A, Yonekawa Y.
    Journal: J Biomed Mater Res; 1990 Jan; 24(1):65-77. PubMed ID: 2154499.
    Abstract:
    Aiming at alleviating the problems of using 2-cyanoacrylates as a material for therapeutic embolization, this experiment made some physical modifications by mixing contrast media. It was found that the physicochemical properties of 2-cyanoacrylates can be altered by changing the concentration and the composition of the contrast media added. A 50 wt% cyanoacrylate-50 wt% contrast medium mixture has enough radiopacity for the practical requirement for embolization. A mixture of 50 wt% (ethoxyethyl cyanoacrylate-5 wt% lactide/epsilon-caprolactone copolymer), 25 wt% lipiodol and 25 wt% tetrafluorodibromoethane provides a viscosity of 13.8 cP, a bonding strength of 14.9 kg/cm2, a set time of 6 s, and a spreading in canine blood of 33 mm. It was concluded that the mixture is much more satisfactory than the conventional cyanoacrylates as an embolus material in vitro. The results obtained by in vivo experiments and clinical trials so far suggest that the mixture is very promising as a material for embolization.
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