title: First clinical use of the Possis synthetic coronary graft.
abstract: The Possis polytetrafluoroethylene Permaflow coronary graft incorporates a Venturi resistor within the graft. Insertion is constructed by creating an anastomosis to the superior vena cava with subsequent anastomoses in sequence to coronary arteries requiring grafting. Finally, the graft is sewn to the aorta. The Venturi resistor controls flow through the aortocaval fistula, maintaining systemic pressure proximal, permitting systolic and diastolic flow to the grafted coronary arteries while maintaining constant flow through the graft. Animal studies demonstrated long-term patency. This graft was implanted in a patient with unstable angina pectoris and inadequate native conduit. Catheterization 6 weeks postoperative revealed patency of all anastomoses.
authors.affiliation: Minneapolis Heart Institute Foundation, Minnesota.
authors.forename: R W
authors.initials: RW
authors.lastname: Emery
authors.forename: R
authors.initials: R
authors.lastname: Petersen
authors.forename: C
authors.initials: C
authors.lastname: Baumgard
authors.forename: D M
authors.initials: DM
authors.lastname: Nicoloff
mesh_terms: D000368:Aged; D000714:Anastomosis, Surgical; D001807:Blood Vessel Prosthesis; D017023:Coronary Angiography; D001026:Coronary Artery Bypass / Q000379:methods; D005260:Female; D006801:Humans; D011138:Polytetrafluoroethylene; D014683:Vena Cava, Superior / Q000601:surgery
chemical_list: D011138:Polytetrafluoroethylene