title: Preliminary results of the new 6F TrapEase inferior vena cava filter.
abstract: The TrapEase filter is a permanent, symmetric nitinol filter that can be deployed through a low-profile sheath. Although the TrapEase is enjoying an increasing market share of inferior vena cava (IVC) filters, there are still limited clinical follow-up data on its use. This study is a retrospective review of 189 consecutive infrarenal TrapEase filters placed at our institution. The study included 80 men and 109 women, with an average age of 73 years (24-102). The most common indication for filter placement was a contraindication to warfarin. In total, 13% of the patients were treated with warfarin. The filter was successfully deployed in all cases, via the right femoral vein in 57% of the patients, via the left femoral vein in 32%, and via the right internal jugular vein in 11%. Follow-up studies were performed as clinically indicated. During the investigation, there were three cases of IVC thrombosis (1.5%) and one case of retroperitoneal hemorrhage potentially caused by filter placement. Two of the thrombosis cases resulted in serious sequelae. This study also represents the first report of a symptomatic pulmonary embolism (PE) after TrapEase filter placement. While this investigation does demonstrate a low overall complication rate of this new device, it raises the concern of an increase in IVC thrombosis rate.
authors.affiliation: Division of Vascular Surgery, Department of Surgery, Maimonides Medical Center, Brooklyn, NY 11219, USA.
authors.forename: Richard
authors.initials: R
authors.lastname: Schutzer
authors.forename: Enrico
authors.initials: E
authors.lastname: Ascher
authors.forename: Anil
authors.initials: A
authors.lastname: Hingorani
authors.forename: Theresa
authors.initials: T
authors.lastname: Jacob
authors.forename: Sreedhar
authors.initials: S
authors.lastname: Kallakuri
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D011655:Pulmonary Embolism / Q000209:etiology; D012189:Retrospective Studies; D016896:Treatment Outcome; D016306:Vena Cava Filters / Q000009:adverse effects