title: Coronary artery bypass grafting with an expanded polytetrafluoroethylene graft.
abstract: BACKGROUND
  We report our experience with the Perma-Flow aortocoronary-right heart graft in 15 patients in whom autologous conduits were not available.
  
  
  METHODS
  Fifteen patients received 39 coronary anastomoses--10 to left anterior descending coronary artery branches, 15 to circumflex coronary artery branches, and 14 to branches of the right coronary artery. Early angiography was done in 11 patients.
  
  
  RESULTS
  One patient died on postoperative day 17 of multiorgan failure. The graft was patent at postmortem examination. Of 30 coronary anastomoses at risk, 24 were patent. Three connections to the left anterior descending system were occluded in patients with an additional internal mammary artery graft to the same coronary system, and three connections to the circumflex system were occluded in patients with a history of major posterior infarction. Three of five distal anastomoses to the right atrial appendage were occluded, whereas all six connections to the superior vena cava were patent. None of the patients had shown recurrent angina at a mean follow-up of 10.9 months (range, 2-39 months).
  
  
  CONCLUSIONS
  The synthetic Perma-Flow coronary graft appears to be a safe alternative in patients in whom arterial or venous conduits are not available. Competitive flow may lead to anastomotic occlusions. The appropriate site for the distal arteriovenous fistula seems to be the superior vena cava.
authors.affiliation: Department of Cardiothoracic Surgery, Westfalian Wilhelms University Muenster, Germany. mweyand@uni.muenster.de
authors.forename: M
authors.initials: M
authors.lastname: Weyand
authors.forename: S
authors.initials: S
authors.lastname: Kerber
authors.forename: C
authors.initials: C
authors.lastname: Schmid
authors.forename: N
authors.initials: N
authors.lastname: Rolf
authors.forename: H H
authors.initials: HH
authors.lastname: Scheld
mesh_terms: D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation; D017023:Coronary Angiography; D001026:Coronary Artery Bypass / Q000379:methods*; D003327:Coronary Disease / Q000601:surgery; D006083:Graft Occlusion, Vascular; D006801:Humans; D011138:Polytetrafluoroethylene; D016896:Treatment Outcome
chemical_list: D011138:Polytetrafluoroethylene