Computer analysis of factors associated with thrombus formation observed on pullout angiograms. Preliminary communication.
A prospective study was instituted to determine both the incidence of postcatheterization arterial thrombus formation and the possibility of a statistically significant correlation between predetermined parameters and the incidence of arterial thrombosis. Pullout angiograms and 12 recorded variables from 176 procedures were studied. Postcatheterization arterial thrombus formation was demonstrated in 9 cases (5%). Statistical analysis by computer showed a statistically significant relationship between 4 factors and postcatheterization thrombosis, viz. catheter/artery ratio, age, catheter diameter, and number of puncture attempts. Total elapsed time of the procedure was not found to be a statistically significant variable. These variables are integrated into a postulate to explain the pathogenesis of postcatheterization thrombus formation seen on pullout angiograms.
D000367:Age Factors; D000792:Angiography / Q000009:adverse effects*; D002404:Catheterization / Q000009:adverse effects*; D003201:Computers; D005263:Femoral Artery; D006801:Humans; D008722:Methods; D011446:Prospective Studies; D011677:Punctures; D012044:Regression Analysis; D013927:Thrombosis / Q000209:etiology*