Publications by authors named "R R Kolvenbach"
Background: Stent-assisted carotid artery revascularization employing surgical cutdown for transcervical access and dynamic flow reversal (TCAR) is gaining popularity. TCAR, despite maximized intra-procedural cerebral protection, shows a marked excess of 30-day neurologic complications in symptomatic vs. asymptomatic stenoses.
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- A recent study evaluated the effectiveness of second-generation carotid stents (SGS) compared to traditional single-layer stents and carotid endarterectomy (CEA), finding that SGS can lead to better outcomes in certain cases.
- Data from over 100,000 patients indicated that specific SGS designs, like Casper/Roadsaver and CGuard, significantly reduced the risk of death, stroke, and myocardial infarction compared to CEA, while Gore stent outcomes were generally poorer.
- Overall, the findings suggest that certain SGS types may offer advantages over CEA, but the performance varies by stent design, highlighting the need for cautious interpretation and consideration of individual patient circumstances.
Catheter-based atherectomy has been discussed for some years, although the conclusions have been controversial. Recent study data did show the feasibility of multifunctional atherectomy devices for complex lesion morphologies, with moderate material use. This is then thus an alternative to bypass surgery, although a direct comparison is lacking.
View Article and Find Full Text PDFPurpose: To demonstrate safety and effectiveness of the novel ByCross® atherectomy system for treatment of complex femorodistal > 80% arterial stenosis.
Materials And Methods: From September 2018 until April 2019 39 patients with 41 femorodistal lesions including the femoropopliteal and distal popliteal segments were treated in a prospective, nonrandomized pre-market approval study with 6 months follow up using the ByCross® atherectomy device (ClinicalTrials.gov identifier NCT03724279).