Incomplete Opening of LGM (Vena Tech) Filters Inserted via the Transjugular Approach

R. A. Reed, G. P. Teitelbaum, F. C. Taylor, R. C. Vogelzang, J. W. Yedlicka, M. J. Pentecost, W. R. Castaneda-Zuniga, K. Amplatz

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Over a 12-month period, 216 LGM vena caval filters were placed in 216 patients at four institutions. The transjugular approach was used in 31 of 216 insertions (14%); 185 of 216 filters (86%) were inserted via the femoral route. Incomplete opening of filters was encountered in 13 of 31 transjugular insertions (41%) and none of 185 transfemoral insertions. Delayed spontaneous filter opening occurred in three of 12 cases (25%) of incomplete opening (in which follow-up was available) at 5 minutes, 4 days, and 2 months after insertion. One filter opened completely after catheter manipulations. Several mechanisms explaining this complication are proposed. In its present form, the LGM filter should not be inserted via the jugular route. Since the filtering capabilities of the incompletely opened LGM device have been shown to be diminished in vitro, it may be advisable to place a second filter cephalad to an incompletely opened LGM filter.

Original languageEnglish (US)
Pages (from-to)441-445
Number of pages5
JournalJournal of Vascular and Interventional Radiology
Issue number4
StatePublished - 1991


  • Embolism, pulmonary, 60.72
  • IVC
  • LG-Medical
  • LGM
  • PE
  • Venae cavae, filters, 982.1299 Venae cavae, thrombosis, 982.442
  • inferior vena cava
  • pulmonary embolism

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Radiology Nuclear Medicine and imaging


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