Abstract
Over the past decade, there has been a gradual evolution of the retrievable inferior
vena cava (IVC) filter, as the indications for caval filtration have expanded since
the first such filters came into use. However, the particular design of retrievable
or optional filters has introduced a subset of both symptomatic and asymptomatic device
failures that have prompted a reassessment in the approach to patient selection as
well as a new lexicon of technical considerations when considering retrieval. The
Denali Vena Cava Filter (Bard Peripheral Vascular, Inc., Tempe, AZ) represents one
of the latest filters to come to market that specifically addresses the various issues
of its predecessors. While the body of published experience with this filter is still
relatively sparse, the incidence of filter tilt, strut perforation, strut fracture,
and filter migration appears acceptably low and the filters remain relatively easy
to retrieve even after long dwell times.
Keywords
interventional radiology - IVC filter - retrievable IVC filter - filter tilt - strut
perforation
