Greisler H P, Klosak J J, McGurrin J F, Endean E D, Ellinger J, Pozar J D, Henderson S C, Kim D U
Loyola University Medical Center, Maywood, IL.
J Cardiovasc Surg (Torino). 1990 Sep-Oct;31(5):640-5.
This study examines prostacyclin production by blood-contacting surfaces within woven vascular prostheses of polydioxanone (PDS), polyglactin 910 (PG910), or Dacron interposed into rabbit infrarenal aortas. Grafts and normal aortic segments were explanted after 1, 3, and 6 months for pulsatile perfusion with Medium-199 for 60 minutes. Aliquots were removed serially for 6-keto-PGF1 alpha assay. After 30 minutes sodium arachidonate (10 micrograms/ml) was added. Specimens were studied by light microscopy, SEM and TEM. Patency in all three groups exceeded 90%. All three showed re-endothelialization at one month. Normal aorta produced low basal 6-keto-PGF1 alpha with a marked evanescent post arachidonate increase. Dacron did not differ from normal aorta. PG910 and PDS both produced significantly less 6-keto-PGF1 alpha post arachidonate at one month but both increased to normal by three months.
