Roadsaver the paradigm shift in carotid artery treatment. G. Torsello Münster

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Roadsaver the paradigm shift in carotid artery treatment G. Torsello Münster

Disclosure Speaker name:...g. Torsello... I have the following potential conflicts of interest to report: Consulting Employment in industry Stockholder of a healthcare company Owner of a healthcare company Research grant I do not have any potential conflict of interest

Frequency of carotid procedures Germany CEA ~27 500 CAS ~7 000 France CEA ~17 000 CAS ~ 1 500 Italy CEA ~16 500 CAS ~4 800 Source: BIBA Medtech Insights Estimates; Population estimates taken from each country s respective statistics office websites (Sep. 2013)

What should make CAS attractive for physicians and patients Minimal invasive, can be done in local anesthesia, ambulatory settings might be possible Short convalescence Offers therapy options in high risk patients Post cervical radiation Post coronary DES in patients with orthopedic anomalies (e.g. M.Bechterev) No surgically related complications no cranial nerve damage short or no clamping time

Demanding access to the lesion

Optimal Therapy? CEA Removal of embolic material low embolisation risk

Problem of plaque protrusion in uncovered areas with resulting delayed stroke Courtesy by Makaroun, Pittsburg and Balzer Mülheim

Known facts in CAS 66% of strokes occur after removal of cerebral protection This occurs despite of optimal medical therapy Reason: plaque prolapse through stent struts Suggestive data of apparent superiority of closed cell over open cell design stents

Stent design based analysis ALL EVENTS Total population Symptomatic Asymptomatic n/n % n/n % n/n % Closed 51/2242 2.3% 21/934 2.2% 30/1308 2.3% Open 39/937 4.2% 27/383 7.0% 12/554 2.2% TOTAL 90/3179 2.8% 48/1317 3.6% 42/1862 2.6% Bosiers, Setacci, Castriota, 2007 SPACE Results: Closed cell superior to open Cell

Kinking of distal ICA after CAS Fig.7A. 90% left internal carotid artery stenosis within the vessel kink., 7B. Wallstent 10 x20, 7C. Post CAS. Moderate kink distally to the stent. Technique of carotid angioplasty with stenting, Vitek J.J., New York Heart and Vascular Institute at Lenox Hill Hospital

The Dilemma Open cell design Suboptimal plaque coverage Conforms to vessel anatomy Closed cell design Good plaque coverage Suboptimally conforms to vessel anatomy Double layer micromesh design Optimal plaque coverage Conforms to vessel anatomy

Dual layer micromesh stent Sustained Embolic Protection Lesion specific scaffolding Tight plaque coverage High in-vessel flexibility Maximal wall apposition Deliverability due to the flexibility of distal tip 5Fr stent delivery system Re-sheathable/ re-positionable

73yo male, symptomatic right carotid stenosis A. Schwindt, 05.09.Amsterdam 13

Angiography after Roadsaver

First clinical cases 84 Patients with high grade carotid lesions

Details of procedure 32 symptomatic, 52 asymptomatic 58 Men, 26 Women Sedation: none Femoral Approach : All Protection: All Filter: 61, MOMA: 23 Atropine before inflation: All Direct Stenting: 25 Post-Dilatation: All 16

Details of procedure Morphology of access vessels: 43% Type I Arch 14% Type II Arch 36% Type III Arch Morphology of lesions: all mild to moderate calcified 70 98% 17

Extreme flexibility of distal tip Trackability through complex aortic arches Reduced dislodgement risk of access sheath or catheter 68yo female, high grade lesion right ICA, Type III Arch

Publications Stroke. A device implanted on even a few people can restore blood flow after a stenosis and avoid a rare complication and feared And now a stent can prevent embolism An occluded Carotid, only one stent, two functions. To inactivate the plaque and prevent stroke, carotid stent has already proved equal to surgical endarterectomy. But today you can avoid the risk of embolism after implantation, using an innovative device ( )

Roadsaver the paradigm shift in carotid artery treatment?

Conclusion The dual layer micromesh stent has proven good deliverability and wall adaptation Access to the supra-aortic vessels appears not to be an exclusion criteria anymore Evaluation in larger registries or trials is needed to examine the safety, efficacy and durability of CAS performed with the Roadsaver stent

home page: www.gefaesschirurgie-muenster.de Thank you! Universitätsklinik Münster St. Franziskushospital Münster

Roadsaver the paradigm shift in carotid artery treatment G. Torsello Münster