1990 Volume 19 Issue 3 Pages 1087-1091
The antithrombogenicity of polyurethane-siliconpolymer complex, K III 2, was evaluated for bypass tubing in assisted circulation in 8 patients. The PVC tubes coated with K III 2 exhibi ted a significantly better antithrombogenic performance in scanning electron microscopic findings (SEM) compared with non-coated PVC tubes. Although its efficacy was apparant when bypass flow was sufficient (more than 1.8l/min) in adult patients, it was not so effective in children and patients with low bypass flow. The results showed that the K III 2 coated tube was effective in adult patients with sufficient bypass flow, but it was not quite effective in children or adults with low bypass flow in preventing thromboembolism during assisted circulation.
