中心静脈カテーテルの材質と菌の付着性について

概要

論文の詳細を見る
The central venous catheterization sometimes cause mild to severe bacterial infections. We investigated the relationship between the bacterial adherence and cell surface hydrophobicity and chemical properties of the surface of catheters themselves available for clinical usage.Our studies revealed that the bacterial adherence to each silicone and polyurethane catheter depended upon the hydrophobicity of bacterial outer layer (r=0.916243,p<0.05 and r=0.639118,p<0.05,respectively), which was significantly greater in the case of silicone catheter than that in the case of polyurethane one (t=3.09,p<0.05). Bacterial adherence to hydrophobic silicone and polyvinyl chloride catheters (water attractivity parameter was 0 and 0.26,respectively) were greater than that to relatively hydrophilic polyurethane catheters (water attractivity parameter was 0.66〜0.85), Hence bacterial adherence might be strongly influenced by hydrophobicity of the material of each catheter.
日本医療機器学会の論文
1993-01-01