title: Caudal migration of the Günther vena caval filter.
abstract: Two cases of downward migration of the Günther vena caval filter are reported. Migration resulted in recurrent pulmonary embolism in one case; in the second, partial thrombosis of the filter precluded retrieval. Both patients were treated successfully by placement of a second Günther filter in the infrarenal vena cava. Until more experience with this filter is available, the authors recommend use of the 30-mm filter in medium- and large-size venae cavae. Radiographs should be obtained to check the position of the filter immediately and 1 week after placement. In addition anticoagulative therapy should be continued whenever possible.
authors.affiliation: Department of Radiology, Hôpital Cantonal Universitaire, Geneva, Switzerland.
authors.forename: P A
authors.initials: PA
authors.lastname: Schneider
authors.forename: L
authors.initials: L
authors.lastname: Parmeggiani
authors.forename: J C
authors.initials: JC
authors.lastname: Piguet
authors.forename: H
authors.initials: H
authors.lastname: Bounameaux
mesh_terms: D000368:Aged; D005260:Female; D005374:Filtration / Q000295:instrumentation*; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011655:Pulmonary Embolism / Q000517:prevention & control; D011859:Radiography; D012008:Recurrence; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging