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BackTable / VI / Podcast / Episode #462

IVC Filter Retrieval: Tips & Technique

with Dr. Noor Ahmad

In this episode of the Back Table Podcast, interventional radiologist Dr. Noor Ahmad discusses his algorithm for complex inferior vena cava (IVC) filter retrievals and reviews several cases that utilize various retrieval tools.

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IVC Filter Retrieval: Tips & Technique  with Dr. Noor Ahmad on the BackTable VI Podcast)
Ep 462 IVC Filter Retrieval: Tips & Technique with Dr. Noor Ahmad
00:00 / 01:04

BackTable, LLC (Producer). (2024, July 9). Ep. 462 – IVC Filter Retrieval: Tips & Technique [Audio podcast]. Retrieved from

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Podcast Contributors

Dr. Noor Ahmad discusses IVC Filter Retrieval: Tips & Technique  on the BackTable 462 Podcast

Dr. Noor Ahmad

Dr. Noor Ahmad is an interventional radiologist with Columbia University Irving Medical Center in New York City.

Dr. Aaron Fritts discusses IVC Filter Retrieval: Tips & Technique  on the BackTable 462 Podcast

Dr. Aaron Fritts

Dr. Aaron Fritts is a Co-Founder of BackTable and a practicing interventional radiologist in Dallas, Texas.


Dr. Ahmad emphasizes that most patients are referred by physicians with whom he maintains good relationships, and both specialties jointly monitor patients after IVC filters are placed. Generally, it is ideal to remove IVC filters around the 3-month mark, with filters in place for over 6 months posing a higher risk of requiring complex retrieval. For preoperative evaluation, obtaining a history of the filter type and placement date, along with CT scans (non-contrast and venogram), is crucial. Anticoagulation is typically discontinued two days prior to retrieval.

During the procedure, moderate sedation and internal jugular access are used. However, complex retrievals may necessitate general anesthesia and access through the femoral vein or dual sites. The initial device employed is usually the CloverSnare to hook and extract the IVC filter. If unsuccessful, Dr. Ahmad proceeds with techniques such as the hangman (modified loop snare), endobronchial forceps, and finally the ClavaClear laser sheath. He highlights that particularly challenging cases might require collaboration with colleagues, especially when dual access is needed, possibly requiring rescheduling for general anesthesia availability. Patient safety is emphasized in these scenarios. Lastly, Dr. Ahmad presents past cases with imaging to illustrate various retrieval methods.


00:00 - Introduction
03:29 - Referrals and Tracking for Filter Removal
08:49 - Working Up Complex Cases
13:19 - Patient Selection
20:14 - Procedure Walkthrough
23:22 - Different Strategies for Filter Removal
31:23 - Laser Techniques
34:47 - Sheath Sizing
36:06 - Enhancing Patient Safety
43:34 - Cheat Sheet for IVC Filters and Case Studies


BackTable Ep. 204- Filter Indications and Filter Tracking: Up Your Game with Dr. Stephen Wang:

BackTable Ep. 339- The Importance of a Multidisciplinary Filter Retrieval Program with Dr. Robert Ryu, Dr. Warren Clements, and Dr. Premal Trivedi:

Disclaimer: The Materials available on are for informational and educational purposes only and are not a substitute for the professional judgment of a healthcare professional in diagnosing and treating patients. The opinions expressed by participants of the BackTable Podcast belong solely to the participants, and do not necessarily reflect the views of BackTable.

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