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ARTICLE |

Greenfield Filter vs Mobin-Uddin Umbrella

George E. Cimochowski, MD; Tom R. DeMeester, MD; Richard H. Evans, MD; Christopher K. Zarins, MD; Chien-Tai Lu, MD
JAMA. 1980;244(19):2160. doi:10.1001/jama.1980.03310190016010.
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To the Editor.—  Recently Scott et al (1980;243:1133) described a new complication for the Mobin-Uddin umbrella—a septic clot in a thrombosed Mobin-Uddin umbrella. This required therapy with a general anesthetic and surgical removal of the clot and umbrella; the clot when cultured grew Staphylococcus aureus coagulase-positive bacteria.Again, we believe that this is further evidence why the Greenfield filter is a superior device to interrupt the vena cava. As we reported recently,1 the Greenfield filter not only has the same recurrent minimal embolic rate as the Mobin-Uddin, but it surpasses the Mobin-Uddin in ease of insertion because of the ability to pass it either transfemorally or transjugularly. Most importantly, it is designed to remain patent and in fact does remain patent, as we reported a long-term patency rate of 98%. We believe that the use of the Mobin-Uddin umbrella with its inherent design to clot could lead to the

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