REGULAR CONTENT
Final ID
565
Type
Original Scientific Research-Oral or Pos
Authors
J Koizumi1, T Hara2, T Sekiguchi2, S Ono3, H Anai4, K Kichikawa5, M Sone6, Y Arai6, H Tajima7, M Tanikake8, Y Suyama9, T Kaji10, K Kato11
Institutions
1Tokai University, Isehara, Kanagawa, 2Tokai University School of Medicine, Isehara, AK, 3Tokai university, Isehara, Kanagawa, 4Nara City Hospital, Nara, Japan, 5Nara Medical University, Kashihara, Nara, 6National Cancer Center Hospital, Tokyo, Japan, 7Nippon Medical School Musashi Kosugi Hospital, Kawasaki, CT, 8Kyoto City Hospital, Kyoto, Kyoto, 9Niippon Kokan Hospital, Kawasakishi, Kanagawa, 10National Defense Medical College, Tokotozawa, Japan, 11N/A, Morioka, Iwate
Purpose
Vena caval filters are well used to prevent fatal pulmonary thromboembolism. However, the mid to long term efficacy is not yet established because filters increase the risk of recurrent deep vein thrombosis. Moreover, filter fractures may cause severe complications leading to death including cardiac tamponade although the actual prevalence is not reported enough. Thus, we investigated the filter fractures retrospectively in several hospitals.
Materials & Methods
Based on the database in 8 hospitals, filter fractures were investigated using plain X-ray or CT. The fracture prevalence of each filter brand, the position of filters (suprarenal; SR vs. infrarenal; IR), and the follow up durations were documented.
Results
294 (SR46, IR 248) Gunther Tulip (GT), 138 (SR39, IR99) Trap/OptEase (TOE), 38ALN (SR0, IR38) and 2 (SR0, IR2) VenaTech (VT) were implanted in 472 consecutive patients (62.5±15.4, 20-94y/o、M200, F272). 3 (1.02%) GT (SR0, IR3), 18 (13.04%) TOE (SR7, IR11) revealed filter fractures, while the others did not. TOE showed significantly higher rates of fractures than GT (p＜0.01). The periods until the discovery of TOE fractures (1340.2±1008.9, 69-3775) were shorter than the ones of GT (2,365.0±1929.6, 895-4,550 days) without significant difference. Any significant difference was identified depending on the filter positions (SR8.2% vs. IR4.0%).
Conclusions
TOF is not suitable for permanent implantation due to relatively early and high fracture rates.
Final ID
565
Type
Original Scientific Research-Oral or Pos
Authors
J Koizumi1, T Hara2, T Sekiguchi2, S Ono3, H Anai4, K Kichikawa5, M Sone6, Y Arai6, H Tajima7, M Tanikake8, Y Suyama9, T Kaji10, K Kato11
Institutions
1Tokai University, Isehara, Kanagawa, 2Tokai University School of Medicine, Isehara, AK, 3Tokai university, Isehara, Kanagawa, 4Nara City Hospital, Nara, Japan, 5Nara Medical University, Kashihara, Nara, 6National Cancer Center Hospital, Tokyo, Japan, 7Nippon Medical School Musashi Kosugi Hospital, Kawasaki, CT, 8Kyoto City Hospital, Kyoto, Kyoto, 9Niippon Kokan Hospital, Kawasakishi, Kanagawa, 10National Defense Medical College, Tokotozawa, Japan, 11N/A, Morioka, Iwate
Purpose
Vena caval filters are well used to prevent fatal pulmonary thromboembolism. However, the mid to long term efficacy is not yet established because filters increase the risk of recurrent deep vein thrombosis. Moreover, filter fractures may cause severe complications leading to death including cardiac tamponade although the actual prevalence is not reported enough. Thus, we investigated the filter fractures retrospectively in several hospitals.
Materials & Methods
Based on the database in 8 hospitals, filter fractures were investigated using plain X-ray or CT. The fracture prevalence of each filter brand, the position of filters (suprarenal; SR vs. infrarenal; IR), and the follow up durations were documented.
Results
294 (SR46, IR 248) Gunther Tulip (GT), 138 (SR39, IR99) Trap/OptEase (TOE), 38ALN (SR0, IR38) and 2 (SR0, IR2) VenaTech (VT) were implanted in 472 consecutive patients (62.5±15.4, 20-94y/o、M200, F272). 3 (1.02%) GT (SR0, IR3), 18 (13.04%) TOE (SR7, IR11) revealed filter fractures, while the others did not. TOE showed significantly higher rates of fractures than GT (p＜0.01). The periods until the discovery of TOE fractures (1340.2±1008.9, 69-3775) were shorter than the ones of GT (2,365.0±1929.6, 895-4,550 days) without significant difference. Any significant difference was identified depending on the filter positions (SR8.2% vs. IR4.0%).
Conclusions
TOF is not suitable for permanent implantation due to relatively early and high fracture rates.