News | January 21, 2015

Endobronchial Forceps Effective in Retrieval of Tip-Embedded Inferior Vena Cava Filters

New technique allows more IVC filters to be removed

January 21, 2015 — When retrievable inferior vena cava (IVC) filters were approved for use in the United States in 2003 to prevent pulmonary embolism among patients unable to receive the standard blood thinner treatment, many experts anticipated most of them would be removed when no longer needed and IVC filter complications would decrease.

Instead, the number of IVC filters placed has more than doubled in the last 10 years, and by some estimates, less than half of these retrievable devices are actually removed each year. Leaving the devices in place risks filter fracture or symptoms from penetration of filter components outside of the vein into adjacent structures, increased risk of new blood clots in the legs and other complications.

A Penn Medicine study published in the journal Radiology confirms that an endobronchial forceps technique the research group developed is a safe and highly effective option for many patients seeking IVC filter removal.

The Penn Medicine team studied 114 adult patients, 77 women and 37 men who visited the Hospital of the University of Pennsylvania for removal of a tip-embedded retrievable IVC filter between January 2005 and April 2014. All patients who underwent retrieval of an IVC filter were evaluated by an interventional radiology attending physician and underwent computed tomographic venography of the abdomen and pelvis.

The researchers say the endobronchial forceps technique helps fill a void where standard procedures fail. The most common reason for a failed IVC filter retrieval is tilting of the filter, with the tip of the filter becoming embedded in the wall of the IVC. When this occurs, a snare or cone device cannot be placed over the tip of the IVC filter and standard techniques for IVC filter removal fail. The newer technique allows these filters to be removed.

“Endobronchial forceps was successful in 97 percent of patients who presented to our institution with tip-embedded IVC filters,” said lead author S. William Stavropoulos, M.D., professor of Radiology. “This method offers many patients a new, safe option for retrievable IVC filter removal when standard methods are not possible. This in turn allows more patients to have their filter successfully removed instead of leaving them in place permanently.”

Penn interventional radiologists found a particularly strong need for the new technique after standard methods with snare or retrieval cones were not successful in removing filters whose tips were embedded in the wall of the IVC.

The increasing number of retrievable IVC filters that go unremoved each year and related complications led the U.S. Food and Drug Administration (FDA) to release 2010 and 2014 safety alerts urging physicians who place the filters to be responsible for their patient’s ongoing care after the procedure and remove the filters as soon as they are no longer needed.

The other Penn authors on the study include Benjamin H. Ge, M.D.; Jeffrey I. Mondschein, M.D.; Richard D. Shlansky-Goldberg, M.D.; Deepak Sudheendra, M.D. and Scott O. Trerotola, M.D.

For more information:



Related Content

Sentinel Cerebral Protection System Reaches 50-Center Adoption Milestone in U.S.
News | Embolic Protection Devices | February 19, 2018
Claret Medical announced that since U.S. Food and Drug Administration (FDA) clearance in June 2017, its Sentinel...
The Boston Scientific FilterWire EZ embolic protec filter system.

The Boston Scientific FilterWire EZ embolic protection system.

News | Embolic Protection Devices | October 31, 2017
October 31, 2017 — The VAMPIRE 3 study evaluated if the selective use of distal filter protection might decrease the
Claret Medical Closes $14.5 Million in Series C Financing for Sentinel Cerebral Protection System
News | Embolic Protection Devices | October 23, 2017
October 23, 2017 — Claret Medical announced that it has closed on a Series C financing of $14.5 million led by Lights
Sentinel Cerebral Protection System Significantly Reduces Stroke and Mortality in TAVR
News | Embolic Protection Devices | September 18, 2017
September 18, 2017 – Claret Medical announced publication of a new study in the...
Protembis Announces Successful First-in-Human Use of  ProtEmbo Cerebral Protection System in European Trial
News | Embolic Protection Devices | September 07, 2017
Protembis GmbH announced the first clinical applications of its ProtEmbo Cerebral Protection System to complement a...
PinnacleHealth First in Pennsylvania to Implant Sentinel Cerebral Protection System
News | Embolic Protection Devices | August 23, 2017
PinnacleHealth is the first hospital in Pennsylvania and one of the first 10 in the country to introduce new technology...
PinnacleHealth Initiates Clinical Study of TriGuard Embolic Protection Device
News | Embolic Protection Devices | April 11, 2017
Through a new clinical trial, patients at Harrisburg, Pa.-based PinnacleHealth have access to an investigational device...
Cardiogard embolic protection system for surgical valve reaplacement

The CardioGard embolic protection system for surgical aortic valve replacement.

Feature | Embolic Protection Devices | March 22, 2017
March 22, 2017 — Two U.S.
Keystone Heart, TriGuard Embolic Protection Device, real-world results, PCR London Valves Conference 2016
News | Embolic Protection Devices | September 29, 2016
Keystone Heart Ltd. recently announced the safety and efficacy of the TriGuard Cerebral Embolic Protection device...
Claret Medical, Sentinal CPS, cerebral protection system, FDA marketing application, TAVR, embolic protection
News | Embolic Protection Devices | September 20, 2016
Claret Medical announced its filing of a marketing application with the U.S. Food and Drug Administration (FDA) for...
Overlay Init