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Endovascular Devices (endovascular + device)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

The iliac bifurcation device for endovascular iliac aneurysm repair: indications, deployment options and results at 1-year follow-up of 25 cases

ANZ JOURNAL OF SURGERY, Issue 11 2009
Ravi L. Huilgol
Abstract Background:, The iliac bifurcation device (William A Cook Australia, Brisbane, QLD, Australia) is a new endovascular device for iliac aneurysm repair. We review the indications for use, device characteristics, deployment options and the results of our case series. Methods:, The most common indication for deployment is endovascular aortic aneurysm repair (EVAR) with common iliac aneurysm repair. The standard deployment sequence can be adapted to increase the utility of the device. Data were collected prospectively. Follow-up was performed with plain X-ray, ultrasound and computed tomography (CT) scan. Results:, Between 2004 and 2007, 25 patients had their common iliac artery aneurysm repaired using the iliac bifurcation device. There were 23 male and 2 female patients. Median age was 75 years (range 60,85). The median follow-up was 12 months (range 1,38). Twenty-one procedures were combined with EVAR. The median abdominal aortic aneurysm diameter was 60 mm (range 31,97), and the median common iliac artery aneurysm diameter was 37 mm (range 24,71). Technical success was achieved in 100% of cases. There were no acute branch vessel occlusions. There was one early type I endoleak (4%). There was one death (4%) in the 30-day period post-procedure. There was one late type I endoleak (4%). Conclusions:, The iliac bifurcation device achieves endovascular common iliac artery aneurysm repair with preservation of internal iliac artery flow. There are multiple different applications of the device and complementary deployment techniques. High rates of technical success and low rates of branch vessel occlusion are possible. [source]

Hypersensitivity reactions associated with endovascular devices

CONTACT DERMATITIS, Issue 1 2008
Golara Honari
Allergic reactions to endoprostheses are uncommon and reported in association with orthopaedic, dental, endovascular and other implanted devices. Hypersensitivity reactions to the biomaterials used in endovascular prostheses are among the infrequent reactions that may lead to local or systemic complications following cardiovascular therapeutic interventions. This article reviews potential immunotoxic effects of commonly used biomaterials. Reports of putative hypersensitivity reactions to endovascular devices, including coronary stents, perforated foramen occluders, pacemakers and implantable cardioverter defibrillators are also reviewed. [source]

MR-visible coatings for endovascular device visualization

JOURNAL OF MAGNETIC RESONANCE IMAGING, Issue 5 2006
Orhan Unal PhD
Abstract Purpose To investigate the potential utility of magnetic resonance (MR)-visible coatings for passive visualization of therapeutic endovascular devices such as catheters and guidewires. Materials and Methods Using a multistep coating process, gadolinium-based coatings were applied to commercially available off-the-shelf catheters and guidewires. These coated devices were imaged in phantoms made of fat-free yogurt, saline, and whole blood and also in live canine aorta on a 1.5-T cardiovascular MR scanner using T1-weighted two-dimensional radiofrequency (RF)-spoiled gradient-recalled echo, two-dimensional spin echo, and three-dimensional RF-spoiled gradient-recalled echo techniques. Results Commercially available off-the shelf catheters (4, 5, and 6 French) and guidewires (0.038 inch) were clearly visualized in all phantoms and canine aorta and the coatings proved to be durable and imageable without degradation in signal intensity up to 24 hours. MR-visible coatings address some of the shortcomings that have previously limited the role of MR as a guidance tool. Conclusion Both in vitro and in vivo visualization of therapeutic endovascular devices coated with MR-visible coatings are found to be clinically viable. J. Magn. Reson. Imaging 2006. © 2006 Wiley-Liss, Inc. [source]