title: Thrombus formation on cannulae.
abstract: Seven types of cannulae were inserted into the cephalic vein of sheep which were killed after 1, 3 or 9 days so that the mass of thrombus associated with each cannula could be measured. Statistical analysis indicated that there was a statistically significant difference of greater than 2-fold between types of cannulae in the amount of thrombus. Differences between the 3 periods were not significant.
mesh_terms: D000818:Animals; D002404:Catheterization / Q000009:adverse effects* / Q000295:instrumentation; D005260:Female; D012756:Sheep; D013927:Thrombosis / Q000209:etiology*; D014680:Veins