BackTable / VI / Podcast / Episode #408
Laser BTK Study Insights: Navigating Complex Lesions
with Dr. Nicolas Shammas
In this episode, host Dr. Aaron Fritts is joined by interventional cardiologists Dr. Sameh Sayfo (Baylor Scott & White in Plano, TX) and Dr. Nicolas Shammas (Cardiovascular Medicine in Davenport, IA) for a discussion about critical limb ischemia (CLI) and the use of lasers in below-the-knee (BTK) treatment.
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BackTable, LLC (Producer). (2024, January 23). Ep. 408 – Laser BTK Study Insights: Navigating Complex Lesions [Audio podcast]. Retrieved from https://www.backtable.com
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Podcast Contributors
Dr. Nicolas Shammas
Dr. Nicolas Shammas is an interventional and peripheral cardiologist with Genesis Medical Center in Davenport, Iowa, and the founder and research director of the Midwest Cardiovascular Research Foundation.
Dr. Sameh Sayfo
Dr. Sameh Sayfo is an interventional cardiologist and the program director of endovascular intervention fellowship at Baylor Scott & White in Plano, Texas.
Dr. Aaron Fritts
Dr. Aaron Fritts is a Co-Founder of BackTable and a practicing interventional radiologist in Dallas, Texas.
Synopsis
To start, Dr. Shammas explains that infrapopliteal disease is difficult to treat due to the high rate of total occlusions and the high degree of medial calcinosis. Next, he gives an introduction to laser atherectomy for certain plaque locations and morphologies, and he describes previous studies that have shown its efficacy for calcified lesions. Intravascular ultrasound (IVUS) can also help guide vessel sizing, plaque morphology, and appropriate device selection. Dr. Shammas believes that the current atherectomy devices on the market are easy to learn to use and can be incorporated into any CLI program.
The doctors discuss the ongoing multicenter study on outcomes of the Auryon laser atherectomy system in CLI patients. Dr. Shammas reviews the study design, proposed endpoints, and current data on 30 day outcomes. We end the episode with advice on building a strong CLI program, which includes multidisciplinary collaboration, advocating for resources, a variety of different tools, and appropriate management of cardiovascular risk factors.
Timestamps
00:00 - Introduction
04:18 - Current Treatment Limitations for Infrapopliteal Disease
07:38 - Laser Atherectomy for Calcified Lesions
12:10 - Learning Curve for Laser Atherectomy Devices
15:38 - 30-Day Results of the Auryon BTK Study
23:35 - Technical Approach and Tools for Infrapopliteal Segments
29:00 - Upcoming Developments in CLI Treatment
31:33 - Advice for Building a CLI Program
Resources
Calcium 360 Trial:
https://pubmed.ncbi.nlm.nih.gov/22891826/
Auryon Laser Atherectomy System:
https://www.angiodynamics.com/product/auryon/
Nexcimer Laser Atherectomy System:
https://www.usa.philips.com/healthcare/product/HCIGTDPHLLSRSYSTM/laser-system-hcigtdphllsrsystm
30-Day Results of the Auryon BTK Study:
https://www.jacc.org/doi/10.1016/j.jacc.2023.09.194
Midwest Cardiovascular Research Foundation:
http://www.mcrfmd.com/
Life-BTK Study:
https://www.cardiovascular.abbott/us/en/patients/treatments-therapies/peripheral-artery-disease/life-btk.html
Promise II Study:
https://www.nejm.org/doi/full/10.1056/NEJMoa2212754
BackTable Ep. 350- Building a CLI Program with Dr. Zola N’Dandu:
https://www.backtable.com/shows/vi/podcasts/350/building-a-cli-program
AngioDynamics and Auryon are trademarks and/or registered trademarks of AngioDynamics, Inc., an affiliate or subsidiary.
Disclaimer: The Materials available on BackTable.com 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.