BackTable / VI / Podcast / Episode #178
Challenging Stroke Thrombectomies with Tough Clot
with Dr. Matt Gounis and Dr. Hannes Nordmeyer
Interventional Neuroradiologist Dr. Hannes Nordmeyer and Biomedical Engineer Dr. Matt Gounis discuss compositions of tough clots, approaches to stroke thrombectomy, and bailout stenting.
BackTable, LLC (Producer). (2022, January 10). Ep. 178 – Challenging Stroke Thrombectomies with Tough Clot [Audio podcast]. Retrieved from https://www.backtable.com
Dr. Matt Gounis
Dr. Matt Gounis is a biomedical engineering professor at the University of Massachusetts Medical School.
Dr. Hannes Nordmeyer
Dr. Hannes Nordmeyer is an interventional neuroradiologist in Germany.
Dr. Michael Barraza
Dr. Michael Barraza is a practicing interventional radiologist (and all around great guy) with Radiology Associates in Baton Rouge, LA.
In this episode, interventional neuroradiologist Dr. Hannes Nordmeyer, biomedical engineering professor Dr. Matt Gounis, and our host Dr. Michael Barraza discuss compositions of tough clots, approaches for stroke thrombectomy, and bailout stenting.
Dr. Nordmeyer believes that interventionalists are still struggling to find the most effective method for pulling clots. He says that the use of double stent retrievers has shown high success rates, but it would be ideal to have one retriever that can work on its own. He describes his equipment setup for a standard large vessel occlusion. Dr. Nordmeyer notes clot location and behavior within the first two passes determines whether or not the operator should continue with the stent retrieval approach or change the approach.
Dr. Gounis evaluates various devices by defining “success” as achievement of TICI 3 with the first pass. He comments on the current development of very large bore aspiration catheters, such as the 088 Millipede catheter and the Tenzing catheter. He also emphasizes that the success of the procedure relies largely on the composition of the embolus. Fibrin-rich clots are less likely to integrate with the stent retriever. We discuss Dr. Nordmeyer’s technique, which utilizes a microcatheter and the NIMBUS device to pin and retrieve the challenging clot.
We also cover bailout stenting and the benefits of recanalization when clot removal is not possible.
SWIFT DIRECT Trial: https://www.swift-direct.ch/the-swift-direct-trial/
Preclinical Evaluation of Millipede 088 Intracranial Aspiration Catheter: https://pubmed.ncbi.nlm.nih.gov/32606100/
The Novel Tenzing 7 Delivery Catheter Designed to Deliver Intermediate Catheters to the Face of Embolus Without Crossing: https://jnis.bmj.com/content/13/8/722
Factors Influencing Recanalization After Mechanical Thrombectomy With First-Pass Effect for Acute Ischemic Stroke: https://www.frontiersin.org/articles/10.3389/fneur.2021.628523/full
NIMBUS Geometric Clot Extractor: https://www.jnjmedicaldevices.com/en-EMEA/news-events/cerenovus-launches-nimbustm-geometric-clot-extractor-remove-tough-clots
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