What is the best known brand name of the material other than dacron often used to replace the aneurysmal portion of the aorta in OAS?
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Open aortic surgery Open aortic surgery ("OAS", also known as Open aortic repair, "OAR") describes a technique whereby an abdominal or retroperitoneal surgical incision is used to visualize and control the aorta for purposes of treatment. OAS is used to treat aneurysms of the abdominal and thoracic aorta, aortic dissection, acute aortic syndrome, and aortic ruptures. Aortobifemoral bypass is also used to treat atherosclerotic disease of the abdominal aorta below the level of the renal arteries. In 2003, OAS was surpassed by endovascular aneurysm repair (EVAR) as the most common technique for repairing abdominal aortic aneurysms in the United States. In OAS for abdominal aortic aneurysm, the aneurysmal portion of the aorta is replaced with a graft, usually made of dacron or PTFE.
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Polytetrafluoroethylene Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. The best known brand name of PTFE-based formulas is Teflon by Chemours. Chemours is a 2015 spin-off of DuPont Co., which discovered the compound in 1938.
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Ahlstrom Ahlstrom-Munksjö provides fiber-based materials for applications such as filters, medical fabrics, life science and diagnostics, wallcoverings and food packaging. Registered trademarks include "NatureMold" molding material; "AceBlade" for Vacuum Infusion Process; "Flow2Save" a media for High Efficiency Air (HEA) filtration applications; "Disruptor" nano-fiber based water filter media using electrokinetic absorption and mechanical entrapment; "Trinitex" activated carbon air and water filter media; and "Cytosep" solid phase blood plasma filer media.
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Aponeurosis Aponeuroses (plural of aponeurosis: απο, "away" or "of", and νευρον, "sinew", and pronounced ap·o·neu·ro·sis) are layers of flat broad tendons. They have a shiny, whitish-silvery color, are histologically similar to tendons, and are very sparingly supplied with blood vessels and nerves. When dissected, aponeuroses are papery and peel off by sections. The primary regions with thick aponeurosis are in the ventral abdominal region, the dorsal lumbar region, the ventriculus in birds, and the palmar and plantar regions.
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Endarterectomy Endarterectomy is a surgical procedure to remove the atheromatous "plaque" material, or blockage, in the lining of an artery constricted by the buildup of deposits. It is carried out by separating the plaque from the arterial wall.
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Boston Scientific Boston Scientific Corporation (Boston Scientific) is a worldwide developer, manufacturer and marketer of medical devices whose products are used in a range of interventional medical specialties, including interventional radiology, interventional cardiology, peripheral interventions, neuromodulation, neurovascular intervention, electrophysiology, cardiac surgery, vascular surgery, endoscopy, oncology, urology and gynecology.
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Polyglycolide Polyglycolide or poly(glycolic acid) (PGA), also spelled as polyglycolic acid, is a biodegradable, thermoplastic polymer and the simplest linear, aliphatic polyester. It can be prepared starting from glycolic acid by means of polycondensation or ring-opening polymerization. PGA has been known since 1954 as a tough fiber-forming polymer. Owing to its hydrolytic instability, however, its use has initially been limited. Currently polyglycolide and its copolymers (poly(lactic-"co"-glycolic acid) with lactic acid, poly(glycolide-"co"-caprolactone) with ε-caprolactone and poly (glycolide-"co"-trimethylene carbonate) with trimethylene carbonate) are widely used as a material for the synthesis of absorbable sutures and are being evaluated in the biomedical field.
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Flexon Flexon is an American brand launched in 1988 by Marchon Eyewear. Flexon utilizes NiTiNOL, a shape memory alloy composed of titanium and nickel which unlike other metals, can "remember" and return to its original set shape. This offers a number of advantages over other eyewear materials, including a lighter weight and increased durability.
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Surgicel Surgicel is a hemostatic agent (blood-clot-inducing material) made of an oxidized cellulose polymer (the unit is polyanhydroglucuronic acid), manufactured by the Ethicon subsidiary of Johnson And Johnson. It was introduced into clinical practice in 1947. It is used to control post-surgical bleeding. It is also used by some boxing cutmen to control bleeding.
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Lumibrite Lumibrite (SrAl2O4 + Eu + Dy - Strontium aluminate doped with Europium and Dysprosium) is a luminous paint used on some models of Seiko, Citizen, Lorus, and Pulsar watches.
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Venous translucence The term venous translucence (or translumination) has been used in phlebology since 1996 by surgeon Pedro Fernandes Neto during ambulatory clinical exams in Brazil. His results were published in the annals of the national and international congresses of angiology. Venous translucence is the process of reflective image visualization of veins by light, which reaches up to the superficial venous system. It is a non-invasive method. Since it is a simple, low-cost technique it can be repeated as needed, which is useful in disease-process monitoring. It is a new diagnostic procedure, still undergoing investigation; more analysis is necessary to hone its technical aspects. Venous translucence is based on optical physics. It is caused by the refraction, absorption and reflection of light (whose principle is the dispersion and absorption of light). The color which is not absorbed is reflected, and is the one that is seen. Therefore, venous translumination is based on the incidence of luminosity on the vein, where part of the light is absorbed and another reflected (supplying a silhouette of the vein in question).
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Tunica externa The tunica externa (New Latin "outer coat"), also known as the tunica adventitia (New Latin "additional coat")(or adventitia for short), is the outermost tunica (layer) of a blood vessel, surrounding the tunica media. It is mainly composed of collagen and, in arteries, is supported by external elastic lamina. The collagen serves to anchor the blood vessel to nearby organs, giving it stability.
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Familial aortic dissection Familial aortic dissection or FAD refers to the splitting of the wall of the aorta in either the arch, ascending or descending portions. FAD is thought to be passed down as an autosomal dominant disease and once inherited will result in dissection of the aorta, and dissecting aneurysm of the aorta, or rarely aortic or arterial dilation at a young age. Dissection refers to the actual tearing open of the aorta. However, the exact gene(s) involved has not yet been identified. It can occur in the absence of clinical features of Marfan syndrome and of systemic hypertension. Over time this weakness, along with systolic pressure, results in a tear in the aortic intima layer thus allowing blood to enter between the layers of tissue and cause further tearing. Eventually complete rupture of the aorta occurs and the pleural cavity fills with blood. Warning signs include chest pain, ischemia, and hemorrhaging in the chest cavity. This condition, unless found and treated early, usually results in death. Immediate surgery is the best prognosis in most cases. FAD is not to be confused with PAU (penetrating atherosclerotic ulcers) and IMH (intramural hematoma), both of which present in ways similar to that of familial aortic dissection.
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Omax Corporation OMAX Corporation is a large American provider of multi-axis (the ability to cut non-flat objects) water jet systems for use in the fabrication and manufacturing industry. It is the second largest water jet machining company in the United States of America.
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Edwards Lifesciences Edwards Lifesciences is an American medical equipment company specializing in artificial heart valves and hemodynamic monitoring. It is mostly known for a transcatheter aortic heart valve made of bovine tissue within a collapsible stainless-steel stent, deployed via catheter.
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Gadolinium(III) oxide Gadolinium(III) oxide (archaically gadolinia) is an inorganic compound with the formula GdO. It is one of the most commonly available forms of the rare-earth element gadolinium, derivatives of which are potential contrast agents for magnetic resonance imaging.
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Silicon dioxide Silicon dioxide, also known as silica (from the Latin "silex"), is an oxide of silicon with the chemical formula Si O , most commonly found in nature as quartz and in various living organisms. In many parts of the world, silica is the major constituent of sand. Silica is one of the most complex and most abundant families of materials, existing as a compound of several minerals and as synthetic product. Notable examples include fused quartz, fumed silica, silica gel, and aerogels. It is used in structural materials, microelectronics, and as components in the food and pharmaceutical industries.
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Flow diverter A flow diverter is an endovascular prosthesis used to treat intracranial aneurysms. It is placed in the aneurysm's parent artery, covering the neck, in order to divert blood flow and determine a progressive thrombosis of the sac.
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Michael L. Marin Michael L. Marin is an American vascular surgeon, the first in the United States to perform minimally invasive aortic aneurysm surgery (stent graft procedure) together with Drs. Frank Veith, Juan C. Parodi and Claudio J. Schonholz. He is considered a pioneer in the field of endovascular repairs of the aorta.
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Celliant Celliant is a brand-name synthetic polymer bi-component fiber made from polyethylene terephthalate with optically active particles embedded into the core. Created by Hologenix, LLC, fabrics containing Celliant have been shown to increase oxygenation in body tissue and demonstrated to reduce minor aches and pains. Initially marketed as Holofiber, Hologenix changed the name to Celliant to avoid confusion about the nature of the core of its fiber. Celliant has been shown to interact with electromagnetic emissions (e.g. infrared light) produced by the human body to achieve the increased oxygenation.
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Valve-sparing aortic root replacement Valve-sparing aortic root replacement (also known as the David procedure) is a cardiac surgery procedure which is used to treat Aortic aneurysms and to prevent Aortic dissection. It involves replacement of the aortic root without replacement of the aortic valve. Two similar procedures were developed, one by Sir Magdi Yacoub, and another by Tirone David.
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Stasilon Stasilon is a brand-name hemostatic woven textile manufactured by Entegrion, Inc. of Durham, North Carolina, USA. It is made from fibers of continuous filament fiberglass and bamboo yarn and used to accelerate clotting and stop bleeding from cuts and abrasions. Originally intended for military use, NATO and United States Navy reviews have reported its abilities to be unsuited to life-threatening arterial hemorrhaging but Stasilon is finding use in operating and burn victim treatment settings.