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Published on: November 4, 2010
Elastomeric surgical sealant for hemostasis of cardiovascular anastomosis under full heparinization
Masataka Eto1, Shigeki Morita, Masakazu Sugiura
1Division of Cardiovascular Surgery, Graduate School of Medical Science, Kyushu University, Fukuoka 812-8582, Japan.
Purpose:
We developed a novel surgical sealant, a viscous diisocyanated prepolymer, applicable to arterial hemostasis. The purpose of this study is to evaluate hemostatic effect of this surgical sealant under heparinized conditions.
Methods:
The effectiveness of this sealant was verified by applying it to the end-to-end anastomosis of canine carotid arteries. Five mongrel dogs were used. After a complete heparinization, the carotid arteries were clamped, divided, and end-to-end anastomoses were performed with four simple interrupted sutures. The sealant was coated on the anastomosis. After 5 min the clamps were removed and the hemostatic effect was evaluated. Three dogs were immediately subjected to macroscopic evaluation. Two dogs were subjected to angiography after 3 months and 16 months, respectively.
Results:
No bleeding occurred in any of the anastomoses immediately after the removal of the clamp. Macroscopic finding revealed no leakage of the sealant into the lumen. Carotid angiography revealed patent anastomoses without stenosis.
Conclusion:
A novel surgical sealant exhibited rapid and potent hemostatic effect on a moisturized tissue under full heparinization.
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