Spontaneous polymerisation of cyanoacrylate/lipiodol mixtures causing failed embolisation. Laboratory studies.

SUMMARY: In vitro experiments to investigate spontaneous polymerisation of n-butyl-2-cyanoacrylate when mixed with non ionic oily contrast medium are reported. The results suggest an interaction between the mixture components which is unique to one particular batch of Lipiodol Ultrafluid and Histoacryl n butyl cyanoacrylate. The interaction cannot be reproduced with other batches of Lipiodol Ultrafluid nor with an alternative preparation of n-butyl-2-cyanoacrylate. Implications for the use of the materials in neuro-interventional practice are discussed.