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. 2014 May-Jun;20(3):245-50.
doi: 10.5152/dir.2013.13289.

Tempofilter II implantation in patients with lower extremity fractures and proximal deep vein thrombosis

Wei Jia  1 , Jianlong Liu, Xuan Tian, Peng Jiang
Affiliations

Tempofilter II implantation in patients with lower extremity fractures and proximal deep vein thrombosis

Wei Jia et al. Diagn Interv Radiol. 2014 May-Jun.

Abstract

Purpose: We aimed to examine the efficacy and safety of Tempofilter II (B. Braun, Melsungen, Germany) implantation to prevent pulmonary embolism in patients with lower-extremity fractures and proximal deep vein thrombosis (DVT).

Materials and methods: The records of patients with lower limb fractures and proximal DVT who were implanted with Tempofilter II devices from May 2004 to August 2009 were reviewed. Data collected included success rate, occurrence of pulmonary embolism, retrieval rate, and complications.

Results: A total of 176 eligible patients, including 129 males (73.3%) and 47 females (26.7%) with a median age of 42.0 years (interquartile range [IQR], 34.0-52.0 years) were included in the study. Filters were successfully implanted in 174 patients (98.9%). One patient experienced a pulmonary embolism after implantation and died. Filters were removed without complications in all other patients. Median filter implantation time was 27 days (IQR, 25.0-29.0 days). Visible organized thrombi were present on the surface of 144 (82.8%) of filters after removal, and the diameter of most thrombi (n=124) ranged from 0.5 to 1.0 cm. Filters migrated <2 cm in 104 patients (59.8%) and ≥ 2 cm in five patients (2.9%). In these five cases, three filters migrated into the right atrium and two migrated to the orifice of the renal veins.

Conclusion: Tempofilter II is safe and may be useful in cases of lower extremity fracture with proximal DVT for the prevention of pulmonary embolism. The filter is easily placed and retrieved, and associated with minimal complications.

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Figures

Figure 1.
Figure 1.
Digital subtraction angiography showing a large thrombus trapped by a temporary vena cava filter.
Figure 2.
Figure 2.
Digital subtraction angiography after filter removal; no thrombi are visible.
Figure 3.
Figure 3.
Explanted filter with trapped thrombus.
See this image and copyright information in PMC

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