| Summary: | Purpose The present study was to evaluate the outcomes of Denali filter retrieval.
Materials and Methods We retrospectively reviewed 143 patients who received Denali filter insertion
from September 2015 to April 2020. Ninety-seven patients who required removal of the filters were
include in this study. Filters were retrieved with either standard or advanced techniques. Venography
before and after retrieval was obtained to evaluate technical success, complications and duration of
filter insertion.
Results All 97 filters were retrieved successfully without complications. Ninety-two (94.8%) were retrieved
with standard technique and 5 filters (5.2%) required the advanced technique. There were two cases with
a filter angle greater than 15 degrees. Inferior vena cava penetration was shown in 17 patients (17.5%) on
venography but was not associated with contrast media extravasation after filter removal.
Conclusion The Denali filter showed a high rate of successful retrieval without complications. This
study adds value to previous studies and trials showing that the Denali filter is a reliable and safe filter
that can potentially improve retrieval rates, with increasing use of this device.
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