title: Clinical application of modified polyurethane graft to blood access.
abstract: Based on a study of 34 clinical implantations, a porous poly(ether-urethane) graft developed for blood access was evaluated. Although it became clear that the graft has several advantages over expanded polytetrafluoroethylene (E-PTFE), it was also revealed that the occlusion at the anastomotic site was more frequently observed than that with E-PTFE. To improve the patency rate, a small modification of the luminal surface was attempted to give a better anchoring of the neointima. The results so far are better than those with the unmodified graft. However, the number of cases is small and the period of observation is short. More work will be necessary to confirm these preliminary results.
authors.affiliation: Kidney Center, Tokyo Women's Medical College, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Ota
authors.forename: Y
authors.initials: Y
authors.lastname: Nakagawa
authors.forename: Y
authors.initials: Y
authors.lastname: Kitano
authors.forename: T
authors.initials: T
authors.lastname: Oshima
authors.forename: S
authors.initials: S
authors.lastname: Teraoka
mesh_terms: D001166:Arteriovenous Shunt, Surgical; D001672:Biocompatible Materials; D001807:Blood Vessel Prosthesis; D005069:Evaluation Studies as Topic; D005260:Female; D006083:Graft Occlusion, Vascular / Q000209:etiology; D006801:Humans; D008297:Male; D008855:Microscopy, Electron, Scanning; D008875:Middle Aged; D011138:Polytetrafluoroethylene; D011140:Polyurethanes; D006435:Renal Dialysis; D013718:Tensile Strength
chemical_list: D001672:Biocompatible Materials; D011140:Polyurethanes; C115016:polyetherurethane; D011138:Polytetrafluoroethylene