Angioplasty, Laser: A technique utilizing a laser coupled to a catheter which is used in the dilatation of occluded blood vessels. This includes laser thermal angioplasty where the laser energy heats up a metal tip, and direct laser angioplasty where the laser energy directly ablates the occlusion. One form of the latter approach uses an EXCIMER LASER which creates microscopically precise cuts without thermal injury. When laser angioplasty is performed in combination with balloon angioplasty it is called laser-assisted balloon angioplasty (ANGIOPLASTY, BALLOON, LASER-ASSISTED).Angioplasty, Balloon, Laser-Assisted: Techniques using laser energy in combination with a balloon catheter to perform angioplasty. These procedures can take several forms including: 1, laser fiber delivering the energy while the inflated balloon centers the fiber and occludes the blood flow; 2, balloon angioplasty immediately following laser angioplasty; or 3, laser energy transmitted through angioplasty balloons that contain an internal fiber.Lasers, Excimer: Gas lasers with excited dimers (i.e., excimers) as the active medium. The most commonly used are rare gas monohalides (e.g., argon fluoride, xenon chloride). Their principal emission wavelengths are in the ultraviolet range and depend on the monohalide used (e.g., 193 nm for ArF, 308 nm for Xe Cl). These lasers are operated in pulsed and Q-switched modes and used in photoablative decomposition involving actual removal of tissue. (UMDNS, 2005)Optical Fibers: Thin strands of transparent material, usually glass, that are used for transmitting light waves over long distances.Fiber Optic Technology: The technology of transmitting light over long distances through strands of glass or other transparent material.Atherectomy, Coronary: Percutaneous transluminal procedure for removing atheromatous plaque from the coronary arteries. Both directional (for removing focal atheromas) and rotational (for removing concentric atheromatous plaque) atherectomy devices have been used.Photorefractive Keratectomy: A type of refractive surgery of the CORNEA to correct MYOPIA and ASTIGMATISM. An EXCIMER LASER is used directly on the surface of the EYE to remove some of the CORNEAL EPITHELIUM thus reshaping the anterior curvature of the cornea.Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Lasers: An optical source that emits photons in a coherent beam. Light Amplification by Stimulated Emission of Radiation (LASER) is brought about using devices that transform light of varying frequencies into a single intense, nearly nondivergent beam of monochromatic radiation. Lasers operate in the infrared, visible, ultraviolet, or X-ray regions of the spectrum.Laser Therapy: The use of photothermal effects of LASERS to coagulate, incise, vaporize, resect, dissect, or resurface tissue.Ultrasonography, Interventional: The use of ultrasound to guide minimally invasive surgical procedures such as needle ASPIRATION BIOPSY; DRAINAGE; etc. Its widest application is intravascular ultrasound imaging but it is useful also in urology and intra-abdominal conditions.Angioplasty, Balloon, Coronary: Dilation of an occluded coronary artery (or arteries) by means of a balloon catheter to restore myocardial blood supply.Coronary Angiography: Radiography of the vascular system of the heart muscle after injection of a contrast medium.Angioplasty, Balloon: Use of a balloon catheter for dilation of an occluded artery. It is used in treatment of arterial occlusive diseases, including renal artery stenosis and arterial occlusions in the leg. For the specific technique of BALLOON DILATION in coronary arteries, ANGIOPLASTY, BALLOON, CORONARY is available.Coronary Artery Bypass: Surgical therapy of ischemic coronary artery disease achieved by grafting a section of saphenous vein, internal mammary artery, or other substitute between the aorta and the obstructed coronary artery distal to the obstructive lesion.Neodymium: Neodymium. An element of the rare earth family of metals. It has the atomic symbol Nd, atomic number 60, and atomic weight 144.24, and is used in industrial applications.Coronary Disease: An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.Stents: Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.Treatment Outcome: Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.Coronary Vessels: The veins and arteries of the HEART.Angioplasty: Reconstruction or repair of a blood vessel, which includes the widening of a pathological narrowing of an artery or vein by the removal of atheromatous plaque material and/or the endothelial lining as well, or by dilatation (BALLOON ANGIOPLASTY) to compress an ATHEROMA. Except for ENDARTERECTOMY, usually these procedures are performed via catheterization as minimally invasive ENDOVASCULAR PROCEDURES.Directories as Topic: Lists of persons or organizations, systematically arranged, usually in alphabetic or classed order, giving address, affiliations, etc., for individuals, and giving address, officers, functions, and similar data for organizations. (ALA Glossary of Library and Information Science, 1983)Plasticizers: Materials incorporated mechanically in plastics (usually PVC) to increase flexibility, workability or distensibility; due to the non-chemical inclusion, plasticizers leach out from the plastic and are found in body fluids and the general environment.Diethylhexyl Phthalate: An ester of phthalic acid. It appears as a light-colored, odorless liquid and is used as a plasticizer for many resins and elastomers.Equipment and Supplies: Expendable and nonexpendable equipment, supplies, apparatus, and instruments that are used in diagnostic, surgical, therapeutic, scientific, and experimental procedures.Device Approval: Process that is gone through in order for a device to receive approval by a government regulatory agency. This includes any required preclinical or clinical testing, review, submission, and evaluation of the applications and test results, and post-marketing surveillance. It is not restricted to FDA.Equipment Safety: Freedom of equipment from actual or potential hazards.Medical Device Legislation: Laws and regulations pertaining to devices used in medicine, proposed for enactment, or enacted by a legislative body.DirectoryUnited States Food and Drug Administration: An agency of the PUBLIC HEALTH SERVICE concerned with the overall planning, promoting, and administering of programs pertaining to maintaining standards of quality of foods, drugs, therapeutic devices, etc.Medical Device Recalls: Removal of a MEDICAL DEVICE from the market due to a problem occurring in the manufacture or distribution of the product.Coronary Restenosis: Recurrent narrowing or constriction of a coronary artery following surgical procedures performed to alleviate a prior obstruction.Recurrence: The return of a sign, symptom, or disease after a remission.Graft Occlusion, Vascular: Obstruction of flow in biological or prosthetic vascular grafts.Constriction, Pathologic: The condition of an anatomical structure's being constricted beyond normal dimensions.Acute Coronary Syndrome: An episode of MYOCARDIAL ISCHEMIA that generally lasts longer than a transient anginal episode that ultimately may lead to MYOCARDIAL INFARCTION.Intraoperative Complications: Complications that affect patients during surgery. They may or may not be associated with the disease for which the surgery is done, or within the same surgical procedure.Atherectomy: Endovascular procedure in which atheromatous plaque is excised by a cutting or rotating catheter. It differs from balloon and laser angioplasty procedures which enlarge vessels by dilation but frequently do not remove much plaque. If the plaque is removed by surgical excision under general anesthesia rather than by an endovascular procedure through a catheter, it is called ENDARTERECTOMY.Saphenous Vein: The vein which drains the foot and leg.Diskectomy, Percutaneous: Percutaneous excision of a herniated or displaced INTERVERTEBRAL DISC by posterolateral approach, always remaining outside the spinal canal. Percutaneous nucleotomy was first described by Hijikata in Japan in 1975. In 1985 Onik introduced automated percutaneous nucleotomy which consists in percutaneous aspiration of the nucleus pulposus. It is carried out under local anesthesia, thus reducing the surgical insult and requiring brief hospitalization, often performed on an outpatient basis. It appears to be a well-tolerated alternative to surgical diskectomy and chymopapain nucleolysis.Peripheral Arterial Disease: Lack of perfusion in the EXTREMITIES resulting from atherosclerosis. It is characterized by INTERMITTENT CLAUDICATION, and an ANKLE BRACHIAL INDEX of 0.9 or less.Peripheral Vascular Diseases: Pathological processes involving any one of the BLOOD VESSELS in the vasculature outside the HEART.Evidence-Based Medicine: An approach of practicing medicine with the goal to improve and evaluate patient care. It requires the judicious integration of best research evidence with the patient's values to make decisions about medical care. This method is to help physicians make proper diagnosis, devise best testing plan, choose best treatment and methods of disease prevention, as well as develop guidelines for large groups of patients with the same disease. (from JAMA 296 (9), 2006)Heart, Artificial: A pumping mechanism that duplicates the output, rate, and blood pressure of the natural heart. It may replace the function of the entire heart or a portion of it, and may be an intracorporeal, extracorporeal, or paracorporeal heart. (Dorland, 28th ed)Cardiomyoplasty: An operation that uses stimulated latissimus dorsi muscle (SKELETAL MUSCLE VENTRICLE) to assist cardiac function. The latissimus dorsi muscle is mobilized from the chest wall and moved into the thorax through the bed of the resected 2nd or 3rd rib. The muscle is then wrapped around the left and right ventricles and stimulated to contract during cardiac systole by means of an implanted burst-stimulator. (Stedman, 26th ed)Myocardial Revascularization: The restoration of blood supply to the myocardium. (From Dorland, 28th ed)Percutaneous Coronary Intervention: A family of percutaneous techniques that are used to manage CORONARY OCCLUSION, including standard balloon angioplasty (PERCUTANEOUS TRANSLUMINAL CORONARY ANGIOPLASTY), the placement of intracoronary STENTS, and atheroablative technologies (e.g., ATHERECTOMY; ENDARTERECTOMY; THROMBECTOMY; PERCUTANEOUS TRANSLUMINAL LASER ANGIOPLASTY). PTCA was the dominant form of PCI, before the widespread use of stenting.Feeding Behavior: Behavioral responses or sequences associated with eating including modes of feeding, rhythmic patterns of eating, and time intervals.Ischemia: A hypoperfusion of the BLOOD through an organ or tissue caused by a PATHOLOGIC CONSTRICTION or obstruction of its BLOOD VESSELS, or an absence of BLOOD CIRCULATION.Wounds and Injuries: Damage inflicted on the body as the direct or indirect result of an external force, with or without disruption of structural continuity.Myocardial Ischemia: A disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart. The decreased blood flow may be due to narrowing of the coronary arteries (CORONARY ARTERY DISEASE), to obstruction by a thrombus (CORONARY THROMBOSIS), or less commonly, to diffuse narrowing of arterioles and other small vessels within the heart. Severe interruption of the blood supply to the myocardial tissue may result in necrosis of cardiac muscle (MYOCARDIAL INFARCTION).Heart: The hollow, muscular organ that maintains the circulation of the blood.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Brain Injuries: Acute and chronic (see also BRAIN INJURIES, CHRONIC) injuries to the brain, including the cerebral hemispheres, CEREBELLUM, and BRAIN STEM. Clinical manifestations depend on the nature of injury. Diffuse trauma to the brain is frequently associated with DIFFUSE AXONAL INJURY or COMA, POST-TRAUMATIC. Localized injuries may be associated with NEUROBEHAVIORAL MANIFESTATIONS; HEMIPARESIS, or other focal neurologic deficits.Capillaries: The minute vessels that connect the arterioles and venules.Foramen Ovale, Patent: A condition in which the FORAMEN OVALE in the ATRIAL SEPTUM fails to close shortly after birth. This results in abnormal communications between the two upper chambers of the heart. An isolated patent ovale foramen without other structural heart defects is usually of no hemodynamic significance.

Pacemaker lead extraction with the laser sheath: results of the pacing lead extraction with the excimer sheath (PLEXES) trial. (1/33)

OBJECTIVES: The purpose of this study was to evaluate the safety and effectiveness of pacemaker lead extraction with the excimer sheath in comparison to nonlaser lead extraction. BACKGROUND: Fibrotic attachments that develop between chronically implanted pacemaker leads and to the venous, valvular and cardiac structures are the major obstacles to safe and consistent lead extraction. Locking stylets and telescoping sheaths produce a technically demanding but effective technique of mechanically disrupting the fibrosis. However, ultraviolet excimer laser light dissolves instead of tearing the tissue attachments. METHODS: A randomized trial of lead extraction was conducted in 301 patients with 465 chronically implanted pacemaker leads. The laser group patients had the leads removed with identical tools as the nonlaser group with the exception that the inner telescoping sheath was replaced with the 12-F excimer laser sheath. Success for both groups was defined as complete lead removal with the randomized therapy without complications. RESULTS: Complete lead removal rate was 94% in the laser group and 64% in the nonlaser group (p = 0.001). Failed nonlaser extraction was completed with the laser tools 88% of the time. The mean time to achieve a successful lead extraction was significantly reduced for patients randomized to the laser tools, 10.1 +/- 11.5 min compared with 12.9 +/- 19.2 min for patients randomized to nonlaser techniques (p < 0.04). Potentially life-threatening complications occurred in none of the nonlaser and three of the laser patients, including one death (p = NS). CONCLUSIONS: Laser-assisted pacemaker lead extraction has significant clinical advantages over extraction without laser tools and is associated with significant risks.  (+info)

Laser angioplasty of restenosed coronary stents: results of a multicenter surveillance trial. The Laser Angioplasty of Restenosed Stents (LARS) Investigators. (2/33)

OBJECTIVES: This study evaluated safety and efficacy of excimer laser angioplasty for treatment of restenosed or occluded coronary stents. BACKGROUND: Balloon angioplasty of in-stent restenosis is limited by a high recurrence rate. Debulking by laser angioplasty is a novel concept to treat in-stent restenosis. METHODS: A total of 440 patients with restenoses or occlusions in 527 stents were enrolled for treatment with concentric or eccentric laser catheters and adjunctive balloon angioplasty. RESULTS: Laser angioplasty success (< or =50% diameter stenosis after laser treatment or successful passage with a 2.0-mm or 1.7-mm eccentric laser catheter) was achieved in 92% of patients. Adjunctive balloon angioplasty was performed in 99%. Procedural success (laser angioplasty success followed by < or =30% stenosis with or without balloon angioplasty) was 91%. There was neither a significant difference in success with respect to lesion length, nor were there differences between small and large vessels or native vessels and vein grafts. Success was higher and residual stenosis lower using large or eccentric catheters. Serious adverse events included death (1.6%, not directly laser catheter related), Q-wave myocardial infarction (0.5%), non-Q-wave infarction (2.7%), cardiac tamponade (0.5%) and stent damage (0.5%). Perforations after laser treatment occurred in 0.9% of patients and after balloon angioplasty in 0.2%. Dissections were visible in 4.8% of patients after laser treatment and in 9.3% after balloon angioplasty. Reinterventions during hospitalization were necessary in 0.9% of patients; bypass surgery was performed in 0.2%. CONCLUSIONS: Excimer laser angioplasty with adjunctive balloon angioplasty is a safe and efficient technology to treat in-stent restenoses. These data justify a randomized comparison with balloon angioplasty.  (+info)

Effect of plaque debulking and stenting on short- and long-term outcomes after revascularization of chronic total occlusions. (3/33)

OBJECTIVES: We evaluated the effect of plaque burden modification (debulking) on the short- and long-term clinical outcomes of patients with a totally occluded native coronary artery undergoing successful stent deployment. BACKGROUND: Although the primary success rate of crossing a chronic totally occluded coronary artery has improved with the development of new interventional devices and guidewires, the rate of acute reocclusion and restenosis remains high. METHODS: The in-hospital and late clinical outcomes of 150 patients who had undergone successful stenting of 176 chronic total occlusions were analyzed. After successful crossing of the lesion, 44 patients with 50 lesions underwent debulking by laser angioplasty, rotational or directional atherectomy followed by stenting, whereas 106 patients with 126 lesions underwent stent implantation without prior debulking. RESULTS: Baseline clinical and angiographic characteristics were similar for the two groups, except for a higher incidence of left anterior descending coronary artery location and longer lesions in the group of patients who underwent debulking prior to stenting. In-hospital mortality, myocardial infarction and repeat angioplasty rates were similar for the two groups. At a mean 14 +/- 8 months follow-up time, there were no deaths in either group, and target lesion revascularization rates were the same (16.3% in the debulking plus stent group vs. 14.4% in the stent alone group, p = NS). CONCLUSIONS: Treatment of chronic total native coronary artery occlusions with stent deployment with and without lesion modification (debulking) results in a favorable in-hospital outcome, with relatively low long-term target lesion revascularization rates.  (+info)

Comparison of debulking followed by stenting versus stenting alone for saphenous vein graft aortoostial lesions: immediate and one-year clinical outcomes. (4/33)

OBJECTIVES: We compared in-hospital and one-year clinical outcomes in patients undergoing debulking followed by stent implantation versus stenting alone for saphenous vein graft (SVG) aortoostial lesions. BACKGROUND: Stent implantation in SVG aortoostial lesions may improve procedural and late clinical outcomes. However, the impact of debulking before stenting in this complex lesion subset is unknown. METHODS: We studied 320 consecutive patients (340 SVG aortoostial lesions) treated with Palmaz-Schatz stents. Debulking with excimer laser or atherectomy was performed in 133 patients (139 lesions) before stenting (group I), while 187 patients (201 lesions) underwent stent implantation without debulking (group II). Procedural success and late clinical outcomes were compared between the groups. RESULTS: Overall procedural success (97.6%) was similar between the groups. Procedural complications were also similar (2.2% for group I and 2.6% for group II). At one-year follow-up, target lesion revascularization (TLR) was 19.4% for group I and 18.2% for group II (p = 0.47). There was no difference in cumulative death or Q wave myocardial infarction between the groups. Overall cardiac event-free survival was similar (69% for group I and 68% for group II). By Cox regression analysis, the independent predictors of late cardiac events were final lumen cross-sectional area (CSA) by intravascular ultrasound (IVUS) (p = 0.001) and restenotic lesions (p = 0.01). Similarly, final IVUS lumen CSA (p = 0.0001) and restenotic lesions (p = 0.006) were found to predict TLR at one year. CONCLUSIONS: These results suggest that, in most patients with SVG aortoostial lesions, debulking before stent implantation may not be necessary.  (+info)

Photoangioplasty with local motexafin lutetium delivery reduces macrophages in a rabbit post-balloon injury model. (5/33)

OBJECTIVE: Motexafin lutetium (Lu-Tex, Antrin Injection) is a photosensitizer that selectively accumulates in atheromatous plaque where it can be activated by far-red light. The localization and retention of intra-arterially administered Lu-Tex and its efficacy following activation by endovascularly delivered light (photoangioplasty) was evaluated. METHODS: Bilateral iliac artery lesions were induced in 17 rabbits by balloon denudation, followed by a high cholesterol diet. Lu-Tex distribution within the atheroma was examined (n=8) following local injection. Fluorescence spectral imaging and chemical extraction techniques were used to measure Lu-Tex levels within the atheroma and adjacent normal tissue. Photoactivation was performed 15 min following Lu-Tex administration (180 J/cm fiber at 200 mW/cm fiber). Two weeks post photoangioplasty, vessels were harvested and hematoxylin and eosin (H&E) and RAM11 (macrophages) staining was performed. RESULTS: Local delivery of Lu-Tex achieved immediate high concentrations within plaque (mean 40x control iliac atheroma). Mean percent plaque area in the treated segments was significantly lower than in the non-treated contralateral lesions (73 vs. 82%, P<0.01). No medial damage was observed. Quantitative analysis using RAM11 positive cells revealed significant reduction of macrophages in treated lesions in both the intima (5 vs. 22%, P<0.01) and in media (8 vs. 23%, P<0.01) compared to untreated contralateral segments. CONCLUSIONS: Local delivery provides high levels of Lu-Tex selectively within atheroma. Photoactivation results in a significant decrease in macrophage and a small decrease in atheroma burden without damage to the normal vessel wall.  (+info)

Cerebral blood flow restoration and reperfusion injury after ultraviolet laser-facilitated middle cerebral artery recanalization in rat thrombotic stroke. (6/33)

BACKGROUND AND PURPOSE: A reversible model of focal thrombotic stroke was developed in the rat and examined for histological evidence of reperfusion injury after clinically relevant times of recanalization. METHODS: The distal middle cerebral artery of 28 male Sprague-Dawley rats was occluded by 562-nm laser-driven photothrombosis for 0.5, 2, and 3 hours or permanently (each n=7) and was recanalized by 355-nm UV laser irradiation. Occlusive material was examined by transmission electron microscopy. Cortical cerebral blood flow was monitored by laser-Doppler flowmetry. Brain infarcts were examined histologically at 3 days. RESULTS: After occlusion, cortical cerebral blood flow was reduced to 33+/-4% of baseline for all groups and was restored to 82+/-9%, 75+/-3%, and 93+/-7% of baseline for the 0.5-, 2-, and 3-hour groups, respectively, following recanalization after 29+/-8, 38+/-20, and 70+/-33 minutes of UV laser irradiation. The thrombotic occlusion contained compactly aggregated platelets but no fibrin, with length (1.2 to 1.8 mm) proportional to the ischemic period. During recanalization, microchannels containing erythrocytes and scattered leukocytes and bordered by intact disaggregated platelets infiltrated the thrombus. Infarct volumes (mm3) at 3 days were 12+/-3 for the permanent case and 8+/-4, 24+/-3, and 30+/-9 for the 0.5-, 2-, and 3-hour cases, respectively, thus demonstrating reperfusion injury histologically in the latter 2 groups. No hemorrhage was seen. CONCLUSIONS: UV laser-facilitated dissolution of a conventionally refractory platelet thrombus provides a novel and effective method for restoring blood flow without hemorrhagic complications during thrombotic stroke. This was the first observation of histologically confirmed reperfusion injury in such a model.  (+info)

Endovascular surgery for peripheral arterial occlusive disease. A critical review. (7/33)

Endovascular surgery is a new multidisciplinary field that applies the recently innovated techniques of angioscopy, intraluminal ultrasound, balloon angioplasty, laser, mechanical atherectomy, and stents. This field can be defined as a diagnostic and therapeutic discipline that uses catheter-based systems to treat vascular disease. As such, it integrates the subspecialties of vascular surgery, interventional radiology, interventional cardiology, and biomedical engineering for the common purpose of improving arterial hemodynamics. Endovascular surgery offers many potential benefits: long incisions are replaced with a puncture wound, the need for postoperative intensive care is significantly reduced, major cardiac and pulmonary complications from general anesthesia are side stepped, and the dollar savings could be dramatic as the need for intensive care unit and in-hospital stay diminishes. Despite these technological advancements, endovascular surgery is still in its infancy and currently has limited applications. This review provides an updated summary of endovascular surgery today and addresses some of the obstacles still preventing its widespread use.  (+info)

Meta-analysis of randomized trials of percutaneous transluminal coronary angioplasty versus atherectomy, cutting balloon atherotomy, or laser angioplasty. (8/33)

OBJECTIVES: We conducted a systematic overview (meta-analysis) of randomized trials of balloon angioplasty versus coronary atherectomy, laser angioplasty, or cutting balloon atherotomy to evaluate the effects of plaque modification during percutaneous coronary intervention. BACKGROUND: Several mechanical approaches have been developed that ablate or section atheromatous plaque during percutaneous coronary interventions to optimize acute results, minimize intimal injury, and reduce complications and restenosis. METHODS: Sixteen trials (9,222 patients) constitute the randomized controlled experience with atherectomy, laser, or atherotomy versus balloon angioplasty with or without coronary stenting. Each trial tested the hypothesis that ablative therapy would result in better clinical or angiographic results than balloon dilation alone. RESULTS: Short-term death rates (<31 days) were not improved by the use of ablative procedures (0.3% vs. 0.4%, odds ratio [OR] 0.94 [95% confidence interval 0.46 to 1.92]), but periprocedural myocardial infarctions (4.4% vs. 2.5%, OR 1.83 [95% CI 1.43 to 2.34]) and major adverse cardiac events (5.1% vs. 3.3%, OR 1.54 [95% CI 1.25 to 1.89]) were increased. Angiographic restenosis rates (6,958 patients) were not improved with the ablative devices (38.9% vs. 37.4%, OR 1.06 [95% CI 0.97 to 1.17]). No reduction in revascularization rates (25.2% vs. 24.5%, OR 1.04 [95% CI 0.94 to 1.14]) or cumulative adverse cardiac events rates up to one year after treatment were seen with ablative devices (27.8% vs. 26.1%, OR 1.09 [95% CI 0.99 to 1.20]). CONCLUSIONS: The combined experience from randomized trials suggests that ablative devices failed to achieve predefined clinical and angiographic outcomes. This meta-analysis does not support the hypothesis that routine ablation or sectioning of atheromatous tissue is beneficial during percutaneous coronary interventions.  (+info)

*Atherectomy

Unlike angioplasty and stents, which push plaque into the vessel wall, atherectomy cuts plaque from the wall of the artery. ... There are four types of atherectomy devices: orbital, rotational, laser, and directional. The decision to use which type of ... It is an alternative to angioplasty for the treatment of peripheral artery disease, but the studies that exist are not adequate ... to determine if it is superior to angioplasty. It has also been used to treat coronary artery disease, albeit ineffectively. ...

*Percutaneous coronary intervention

Coronary angioplasty, also known as percutaneous transluminal coronary angioplasty (PTCA), because it is done through the skin ... Other procedures done during a percutaneous coronary intervention include: Implantation of stents Rotational or laser ... The mortality rate during angioplasty is 1.2%. Sometimes chest pain can occur during angioplasty because the balloon briefly ... Angioplasty carried out shortly after an MI has a risk of causing a stroke, but this is less than the risk of a stroke ...

*CHI St. Luke's Health

... the first laser angioplasty procedure in America in 1985, and the first laser coronary endarterectomy procedure in America in ... "Efficiency and safety of optically modified fiber tips for laser angioplasty". Journal of the American College of Cardiology. ... In 1986, Texas Heart Institute performed the first peripheral laser procedure in Texas- and one of the first in the United ...

*List of MeSH codes (E02)

... angioplasty, laser MeSH E02.148.050.075.080 --- angioplasty, balloon, laser-assisted MeSH E02.148.050.120 --- atherectomy MeSH ... angioplasty, balloon MeSH E02.148.050.060.080 --- angioplasty, balloon, laser-assisted MeSH E02.148.050.060.100 --- angioplasty ... angioplasty, balloon, laser-assisted MeSH E02.148.102.060.100 --- angioplasty, transluminal, percutaneous coronary MeSH E02.148 ... E02.148.050.120.125 --- atherectomy, coronary MeSH E02.148.102.060 --- angioplasty, balloon MeSH E02.148.102.060.080 --- ...

*ELCA

... the former Evangelical Lutheran Church in America Excimer Laser Coronary Angioplasty. ...

*Bruce Keogh

Junior Research Fellow which led to the award of the MD higher degree in 1989 for research into laser coronary angioplasty. He ... coronary angioplasty and pacemakers into a new National Institute for Cardiovascular Outcomes Research. He was an innovative ...

*Excimer laser

Subsequent work introduced the excimer laser for use in angioplasty. Xenon chloride (308 nm) excimer lasers can also treat a ... An excimer laser, sometimes more correctly called an exciplex laser, is a form of ultraviolet laser which is commonly used in ... particularly the XeCl laser, as pump sources for tunable dye lasers, mainly to excite laser dyes emitting in the blue-green ... Large-scale excimer-laser-pumped dye lasers, in High Power Dye Lasers, Duarte, F. J. (Ed.) (Springer, Berlin, 1991) Chapter 4. ...

*Laser surgery

other applications include laser assisted angioplasties and laser assisted vascular anastomosis. Lasers are used to treat ... III using CO2 lasers in the 1990s. Lasers are also used for laser-assisted lipectomy. Various types of laser surgery are used ... CO2 lasers were the dominant soft-tissue surgical lasers as of 2010. Soft-tissue laser surgery is used in a variety of ... and soft-tissue laser surgery, in which the laser beam vaporizes soft tissue with high water content. Laser surgery is commonly ...

*List of MeSH codes (E04)

... angioplasty, laser MeSH E04.416.075.080 --- angioplasty, balloon, laser-assisted MeSH E04.416.237 --- keratectomy, laser MeSH ... angioplasty MeSH E04.100.814.050.060 --- angioplasty, balloon MeSH E04.100.814.050.060.080 --- angioplasty, balloon, laser- ... angioplasty, laser MeSH E04.100.814.050.075.080 --- angioplasty, balloon, laser-assisted MeSH E04.100.814.050.120 --- ... laser in situ MeSH E04.416.237.875 --- keratectomy, subepithelial, laser-assisted MeSH E04.416.410 --- laser coagulation MeSH ...

*Laser medicine

... and specialties where lasers are utilized include: angioplasty cancer diagnosis cancer treatment cosmetic dermatology such as ... diode lasers dye lasers excimer lasers fiber lasers gas lasers free electron lasers semiconductor diode lasers Examples of ... to Laser medicine at Wikimedia Commons Dental laser Endovenous laser therapy Laser-assisted new attachment procedure Laser ... such as laser photodynamic therapy. Lasers used in medicine include in principle any type of laser, but especially: CO2 lasers ...

*Transmyocardial revascularization

The CO2 Heart Laser uses a computer to direct laser beams to the appropriate area of the heart in between heartbeats, when the ... Most people with coronary artery disease are treated with angioplasty and stenting or coronary bypass surgery and medications ... When performing TMR a qualified cardiac surgeon delivers a precise laser therapy (either with a Holmium:YAG laser or CO2), ... TMR, or transmyocardial laser revascularization, is a newer treatment aimed at improving blood flow to areas of the heart that ...

*Harvinder Sahota

After getting the US FDA approval in the 1980s the balloon is now used in angioplasty surgeries all over the world. Sahota went ... As an inventor, he holds a total of 24 patents and many other medical inventions such as Red Laser Light for prevention of ... On January 17, 1990 Sahota performed the first coronary angioplasty in North India and nine more followed in the week that the ... He is the inventor of the FDA approved Perfusion Balloon Angioplasty known as "Sahota Perfusion Balloon". Sahota holds two ...

*Revascularization

Vascular bypass and angioplasty are the two primary means of revascularization. The term derives from the prefix re-, in this ... When those cannot be done, transmyocardial revascularization or percutaneous myocardial revascularization, done with a laser, ... coronary balloon angioplasty) are the two primary means of revascularization. ...

*Ashok Seth

He is a trustee of Indo-French Cardiovascular Foundation for Research, Education and Training in the field of Angioplasty and a ... He is known to perform Percutaneous Myocardial Laser Revascularization, reported to be among the few cardiologists in the World ... Chandra P, Cribier A, Seth A (1995). "Utility of Pilot wire in angioplasty of tortuous and highly angulated coronary arteries ... Chandra P, Cribier A, Seth A (1995). "Utility of Pilot wire in angioplasty of tortuous and highly angulated coronary arteries ...

*Surgery

By equipment used: Laser surgery involves use of a laser for cutting tissue instead of a scalpel or similar surgical ... Other procedures that do not necessarily fall under this rubric, such as angioplasty or endoscopy, may be considered surgery if ... laser ablation of the cornea) or to a radiosurgical procedure (e.g. irradiation of a tumor). Surgical procedures are commonly ... as in laparoscopic surgery or angioplasty. By contrast, an open surgical procedure such as a laparotomy requires a large ...

*Our Lady of Lourdes Medical Center

In 2007, Lourdes began employing cool, pulsed laser technology to clear blockages in blood vessels of patients with peripheral ... Cardiologists with the New Jersey Heart Institute at Lourdes specialize in angioplasty and stent placement; open heart surgery ...

*Scanning Fiber Endoscope (SFE)

Laser sources are coupled into the single scanning fiber and they use red, green, and blue lasers to create color images. To ... 500,000 balloon angioplasty/stent/coronary procedures; 1M coronary catheterizations Recent successes in acute stroke care are ... Lasers in Surgery and Medicine. 2002;30(3):177-183. [PubMed] [17] Seibel EJ, Smithwick QYJ, Brown CM, Reinhall PG. Single-fiber ... Using a single-mode fiber that vibrates in resonance, the SFE scans over tissue highlighted by a focused laser spot. A detector ...

*Healthcare in Kosovo

There are also some non-surgical procedures performed such as: catheterization, balloon angioplasty, intravascular ultrasound, ... Their services include intraocular implants, laser eye surgery, cataract surgery, retinal surgery, glaucoma surgery, squint ... medical lasers, life support equipment, in vitro diagnostic, etc)." The table below shows Kosovo Health Care Budget for 2012, ...

*Piers Nash

Lasers in Surgery and Medicine. 24 (5): 346-59. doi:10.1002/(SICI)1096-9101(1999)24:5. 3.0.CO;2-K. PMID 10406475. Miller, L. W ... "Virus-Encoded Serine Proteinase Inhibitor SERP-1 Inhibits Atherosclerotic Plaque Development After Balloon Angioplasty". ...

*Herzliya Medical Center

Dermatological Laser Clinic, Herzliya Medical Center, Herzeliya, Israel. 32 (6): 642-5. doi:10.1111/j.1365-2230.2007.02469.x. ... all kinds of angioplasty and catheterization; Cardiac Surgery Centre - has a license for open heart surgery, bypass surgery, ...

*Neurosurgery

At times instead of disc removal a Laser discectomy could be used to decompress a nerve root. This method is mainly used for ... Techniques such as angioplasty, stenting, clot retrieval, embolization, and diagnostic angiography are endovascular procedures ...

*Andrew Nicolaides

1993). Laser Doppler, Med-Orion Publishing. ISBN 978-9963-592-53-1 Bernstein E. et al. (1993). Cerebral Revascularisation, Med- ... characterization using digital image processing and its potential in future studies of carotid endarterectomy and angioplasty ...

*Interventional radiology

Endovenous laser treatment of varicose veins: Placement of thin laser fiber in varicose veins for non-surgical treatment of ... Vascular Balloon angioplasty/stent: Opening of narrow or blocked blood vessels using a balloon, with or without placement of ... ISBN 978-0-19-157556-3. Uberoi, Raman (2009). "7 Angioplasty and stenting". Interventional radiology. Oxford New York: Oxford ...

*Vascular bypass

If a patient is deemed to be too high-risk to undergo a bypass, he or she may be a candidate for angioplasty or stenting of the ... In neurosurgery, excimer laser assisted non-occlusive anastomosis (ELANA) is a technique use to create a bypass without ... Grady, Denise (December 19, 2006). "With Lasers and Daring, Doctors Race to Save a Young Man's Brain". New York Times. p. F1. ... Tulleken, C.A.; Verdaasdonk, R.M.; Beck, R.J.; Mali, W.P. (November 1996). "The Modified Excimer Laser-Assisted High-Flow ...

*Surgical technologist

... s also deal with equipment, such as handling a C-arm fluoroscope in angioplasty and orthopedics. A ... In addition, technological advances, such as fiber optics, laser and robotic technology, will permit an increasing number of ...

*DMOZ - Health: Medicine: Surgery: Cardiothoracic

CardioGenesis Laser Therapies for Angina and Heart Disease Patients Surgical laser therapies for the treatment of severe angina ... Angioplasty / PTCA Home Page Includes resources for interventional cardiologists and patients alike, discussion forum, list of ...
TY - JOUR. T1 - Solid-state, pulsed-wave, mid-infrared coronary laser angioplasty in de novo versus restenosis lesions. T2 - Observations from a multicenter study. AU - Topaz, O.. AU - McIvor, M.. AU - De Marchena, Eduardo. PY - 1995/10/1. Y1 - 1995/10/1. N2 - The following is a study of the response of de novo versus restenosis coronary lesions to pulsed-wave, mid-infrared (holmium:YAG) laser assisted angioplasty. De novo lesions contain thrombi, cholesterol, and fibrosis, whereas restenotic lesions are composed of smooth muscle cells corresponding to injury caused by preceding balloon inflations. It is not known whether the different composition affects results of treatment by laser. In a clinical multicenter study, a mid-infrared, solid-state, pulsed-wave laser (holmium:YAG, 2.1 μm wavelength, 250-600 mJ/pulse, 5 Hz) was applied for revascularization of de novo and restenosis coronary lesions. Analysis of data was undertaken to document laser success, complications, and restenosis rate and ...
A fiber-optic waveguide, used for ablating lesions in blood vessels, is mounted within and guided by a catheter having multiple lumens extending therethrough and parallel to each other. The waveguide fits within at least one lumen and a guidewire, previously inserted in a blood vessel, extends through another lumen. The distal end of the waveguide can have a short section of larger diameter fiber fused to it to cause a laser beam transmitted through the fiber to expand as it emerges from the waveguide to provide a larger ablation area. The waveguide may also be connected to an energy source by means of an energy coupler.
Laser atherectomy might decrease procedural complications during percutaneous coronary intervention (PCI) of degenerated saphenous vein grafts (SVGs) in case of unstable or thrombotic lesions because of its ability to debulk and vaporize thrombus. We aimed at prospectively evaluating the safety and efficacy of excimer laser coronary angioplasty (ELCA) as a primary treatment strategy in consecutively unstable patients undergoing PCI of degenerated SVG lesions. Seventy-one consecutive patients with non-ST elevation acute coronary syndrome (mean age 69 ± 10 years, 66 men [89%]) undergoing PCI of degenerated SVG were enrolled in a prospective case-control registry, using 2 different distal protection devices (DPDs; FilterWire EZ [Boston Scientific, Natick, Massachusetts; n = 24] and SpiderRX [Ev3, Plymouth, Minnesota; n = 23]) or ELCA (n = 24 ...
Although brachytherapy became frequently used technique for treating in-stent restenosis (ISR) in 2000 (stenosis recurrence: 14-25%), removing the tissue (i.e., debulking) is still under evaluation. Regarding XeCl Excimer laser no randomised trials h
To help elucidate the mechanism of excimer laser coronary angioplasty (ELCA), intravascular ultrasound (IVUS) imaging was performed in 19 of 29 patients who were treated with ELCA. The results were compared with a non-randomized control group of 18 p
From February to August 1997, 64 patients were enrolled in a study of intracoronary gamma radiation for in-stent restenosis. In the present study, we analyzed 37 lesions (31 native coronary and 6 vein graft) in 36 patients (age, 62±10 years; 24 men) previously treated with Palmaz-Schatz stents (Cordis). Reasons for exclusion were restenting of the lesions (n=13), no delayed (n=6) or inadequate IVUS (n=1), in-stent tissue ,75% of stent cross-sectional area (CSA; n=2), restenosis localized to stent margin(s) (n=1), or presence of non-Palmaz-Schatz stents (n=5). (One patient had 2 lesions; per protocol, only 1 was enrolled in the radiation trial.) There were 65 stents (1.8 per lesion), implanted 9.6±8.3 months previously. Fifteen patients (40%) had prior in-stent restenosis; the last episode was 5.5±3.3 months previously.. Primary treatment strategy was determined by the operator: PTCA (n=8), excimer laser coronary angioplasty (ELCA; Spectranetics; n=12) + adjunct PTCA, or rotational atherectomy ...
An absorption characteristic and a thermal relaxation time of a target biomedical tissue is an important parameter for development of low-invasive treatment that considers of interaction between biomedical tissue and laser. Laser irradiations with a wavelength corresponding to the absorption characteristics of tissue enable selective treatment. Furthermore, the thermal effect to tissue can be controlled at the laser irradiation time which depends on the laser pulse width and reception rate. A free electron laser (FEL) can continuously vary the wavelength in the mid-infrared region, has a unique pulse structure; the structure at the Institute of the Free Electron Laser (iFEL) consist of train of macropulses with a 15 &mgr;s pulse width, and each macropulse contained a train of 300-400 ultrashort micropulse with a 5 ps pulse width. In a previous report, we have proposed a novel laser treatment such as soft tissue cutting, dental treatment and laser angioplasty using the tenability of the FEL. To ...
Biscione, C., Mariano, E., Sergi, D., Tarsia, G., Viceconte, N., Bernardo, V., et al. (2012). Large coronary aneurysm following laser angioplasty of the left anterior descending coronary artery. JOURNAL OF CARDIOVASCULAR MEDICINE, 13(5), 334-335 ...
Learn the symptoms of wet age-related macular degeneration, an eye condition that can give you a blind spot in the center of your field of vision.
Several limitations of this study must be acknowledged: 1) Given the relatively small sample size, the study was powered to show only major differences between the two treatment arms. Lesser degrees of benefit favoring laser-assisted PTCA or stand-alone PTCA may have gone undetected. However, given the higher rate of complications and slightly worse long-term outcomes with lasing in this trial, it is unlikely that enrolling a larger population would have revealed significant long-term benefits in the laser arm. 2) Although the two treatment arms were well matched for most baseline characteristics, several differences were present between the two groups, including the frequency of previous MI and the presence of thrombus-containing lesions. However, when analyzed separately and adjusted for by multivariate analysis, these factors had no bearing on acute or late event-free survival. 3) Some degree of selection bias cannot be excluded, especially in investigator reporting of clinical events and ...
The biological effects of excimer lasers and safety associated with their use were discussed. Excimer lasers operate in the 193 to 351 nanometer (nm) wavelength range producing short pulses of high energy ultraviolet (UV) radiation. They have been used to ablate tissues and nonbiological material to a small depth. As excimer lasers produce radiation in wavelengths where mutagenic and carcinogenic
Angioplasty is a type of Percutaneous Intervention but the two terms are often used to talk about the same procedure. Angioplasty is much like an angiogram procedure.
... often include relief of chest pain. This eMedTV article discusses the expected results of angioplasty and explains that arteries may not remain unblocked after the procedure.
Angioplasty is often recommended for people who have blocked arteries. Find out if angioplasty is for you in this article from Discovery Health.
Featured Angioplasty News. Find breaking news, commentary, and archival information about Angioplasty From The tribunedigital-mcall (Page 4 of 5)
Every day, physicians and medical facilities around the world choose Ra Medical Systems excimer lasers to offer the highest caliber treatments to their patients.
A heart disease expert, Dr. Ravinder Singh Rao is one of the leading Heart Specialist for Angioplasty Procedure in Jaipur, Rajasthan, India who has saved countless lives. Consult today.
Hello everyone, I just came back after an angioplasty with a stens implants. No heart attack or muscle damage. Just Chest pain. I am 54, been doing weights for many years, I cant live without working out. I was wondering if anyone has the same experience and how they manage to came back to the gym. Thanks in advance
Endovenous laser therapy is one of the most popular treatments for varicose veins. This minimally-invasive treatment uses laser energy to cause the problematic vein to collapse. The laser is a beam of light that turns to heat inside the vein. Due to the high concentration and narrow focus of light, the laser is able to target the specific area with maximum precision. Lasers have been used for medical treatments for years. In the hands of our highly qualified specialist, laser treatment offers much less risk than surgery.. The process involves inserting a thin fiber into the damaged vein. This only requires a tiny entry point, no incision. The laser light is emitted through the fiber while it is drawn through the vein. The energy is delivered to affect the vein walls so it collapses and seals shut. These veins are superficial veins and handle less than five percent of your bodys blood, which is automatically redirected to healthy veins.. The treatment does not require general anesthesia. A local ...
Atherectomy led to better postprocedural luminal dimensions but was similar to angioplasty for 6-month outcomes in left anterior descending coronary arteries. Coronary atherectomy, endoluminal stenting, and laser angioplasty are alternative interventions to balloon angioplasty (PTCA) for the percutaneous revascularization of obstructive CAD. They were developed because of the persistent unacceptably high restenosis rate (30% to 50%) associated with PTCA. The Coronary Angioplasty versus Excisional Atherectomy Trial (CAVEAT) by Topol and colleagues and the Canadian Coronary Atherectomy Trial (CCAT) by Adelman and colleagues are important because they are the first randomized trials to compare PTCA with an alternative intervention device. In fact, only 2 other randomized trials with PTCA have been reported: the Angioplasty Compared to Medicine (ACME) trial in patients with single-vessel disease and the Randomized Intervention Treatment of Angina (RITA) trial comparing PTCA with bypass graft ...
Methods are provided for laser induced fluorescence intensity feedback and control during laser angioplasty. In a first aspect of the invention, a catheter including an eccentric guidewire lumen and at least one optical fiber is positioned relative to an obstruction in a blood vessel by rotating the catheter and monitoring the fluorescence intensity. When the fluorescence intensity has a maximum value, the optical fiber is aligned with the obstruction. In another aspect of the invention, fluorescence intensity feedback is used to determine when a laser ablation device has crossed an occlusion. An abrupt drop in fluorescence intensity indicates that the ablation device has crossed the occlusion. In a further aspect of the invention, fluorescence intensity feedback is used to determine the effectiveness of fluid flushing in a blood vessel. In yet another aspect of the invention, fluorescence spectroscopy and fluorescence intensity monitoring are performed sequentially for different subsets of optical
BOC has become the worlds largest supplier of pure excimer laser gases, excimer laser gas mixtures and laser equipment having worked for decades in close collaboration with the leading laser manufacturers as well as the pioneers of excimer laser applications, .
A rare gas-halogen excimer laser in which the laser gases are exposed virtually only to metal and ceramic, thereby reducing contamination of the gases and optics. In one preferred embodiment magnetic fluid seals (56) are used to isolate the bearings (58) supporting the shaft (46) upon which the tangential fan (44) rotates so that the lubricated bearings do not contaminate the laser gases. The fan (44) uses magnetic coupling (70, 76) so that an isolating enclosure may be placed over the seal to prevent the leakage of gases into the environment should the seal fail. An excimer laser that is therefore both safe enough to be used in medical and industrial applications as well as reliable may be fabricated.
Historical background and present status of excimer laser annealing of amorphous silicon for poly-TFTs fabrication are presented. Scanning and single shot systems are compared both on the physical and economical aspects. Process optimization and process control using real time spectroscopic ellipsometry are also presented. Finally, some perspectives in the development of very high power excimer laser are also given ...
Definition of Balloon angioplasty with photos and pictures, translations, sample usage, and additional links for more information.
Strengthening suspicions that infections often trigger heart disease, doctors found that artery-clearing angioplasty frequently fails to work in people who carry a common virus called
[96 Pages Report] Check for Discount on United States Laser Atherectomy Devices Market Report 2017 report by QYResearch Group. In this report, the United States Laser Atherectomy Devices market...
Infections that occur after an angioplasty are uncommon. This part of the eMedTV Web site describes how the use of sterile equipment reduces the risk of infections following angioplasty. If a patient does develop an infection, it is usually minor.
Step-by-Step Instructions for Angioplasty Treatment of CCSVI as Performed by Dr. Tariq Sinans Team in Kuwait.... I found it by chance: Step-by-Step Instructions for Angioplasty Treatment of CCSVI as Performed by Dr. Tariq Sinans Team These notes were dictated to ...
A new study of more than 500,000 cardiac patients who underwent recent cardiac stent or angioplasty procedures in the United States has found that up to 15 percent were either unnecessary or
The Coalition for Community Schools is an alliance of national, state and local organizations in education K-16, youth development, community planning and development, family support, health and...
Surgical backup is required for non-emergency angioplasty because, in rare instances, the procedure has led to a tear in a vessel or closing of an artery rather than opening it.
excimer, zdravotnícke centrum, Očná ambulancia, Očná optika, Excimer laserove pracovisko, Gastroenterologická ambulancia, Urologická ambulancia
Im 33. I dont drink or smoke, and despite the fact that I could lose about 20 lbs, Im in decent shape. So I wasnt worried too much when I felt a...
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Is swelling normal after closing veins with endovenous laser ablation? - I had swelling in my left foot and my doctor confirmed that the valves in two of my veins were not working properly. I had these veins closed with endovenous laser ablation, but four weeks later I still have swelling in my foot that doesnt go away. Is this normal?
Endovenous Laser Treatment is quickly becoming the gold-standard in the treatment of varicose veins. Endovenous Laser Treatment uses laser energy, which is simply a highly concentrated beam of light. Medical lasers work by delivering this light energy to the targeted tissue with extreme precision, so as not to affect the surrounding tissue.. In endovenous laser treatment, a thin fiber is inserted into the damaged vein through a very small entry point in the skin. A laser light is emitted through the fiber, as the fiber is pulled back through the vein, it delivers just the right amount of energy. The targeted tissue reacts with the light energy, causing the vein to close and seal shut. The veins that are closed are superficial veins that handle less than five percent of the bodys blood flow. The blood is automatically routed to other, healthy veins.. Some patients may experience temporary soreness or some slight swelling, which can be treated effectively with over-the-counter, non-aspirin pain ...
Varicose Vein Endovenous Laser Treatment Pro-V. A new approach to varicose vein treatment. Varicose veins affect half of people age 50 and older and 15-20% of all adults worldwide. They are larger than spider veins, typically 3 mm or more in diameter, and are deeper than spider veins. Contributing factors of venous insufficiency are heredity, age, obesity, prolonged standing and pregnancy. If you are suffering from varicose veins-heavy, bulging, ropey veins-treatment with the Varicose Vein Pro-V laser is the optimal solution. The Varicose Vein Pro-V treatment is a safe and effective solution for treating venous insufficiency, often the cause of varicose veins, in a fast comfortable procedure. If you are considering treatment, eliminating varicose veins is easy with Pro-V.. The Varicose Vein Pro-v treatment is done with an infrared laser that is FDA cleared for endovenous laser treatment of varicose veins. The Varicose Vein Pro-v treatment is a safe and effective solution for treating venous ...
Welcome to the Vein-Treatment.com Local Pages. Here you will find local information about Endovenous Laser Ablation in Lewiston, ID and other similar resourses that may be of interest to you. In addition to a number of relevant services we can help you with online, we have compiled a list of businesses and services around Lewiston, including Vascular Specialists, Hospitals, and Health Clinics that should help with your search. Before you look through our local resources, please browse our site. You may just find all you need online!
Welcome to the Vein-Treatment.com Local Pages. Here you will find local information about Endovenous Laser Ablation in Southbridge, MA and other similar resourses that may be of interest to you. In addition to a number of relevant services we can help you with online, we have compiled a list of businesses and services around Southbridge, including Vascular Specialists, Hospitals, and Health Clinics that should help with your search. Before you look through our local resources, please browse our site. You may just find all you need online!
Endovenous laser treatment: The objective of this study is to analyze the results of the first 400 cases treated with Endovenous Laser Ablation
Having performed more than 15000+ cases, Dr Padaria is one of the Best Varicose Veins Surgeons in Mumbai, India. Dr. Padaria pioneered the technique of Endovenous Laser Treatment for Varicose Veins in India in January 2003.
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A trained professional administers endovenous laser ablation to patients in a doctor office setting as an outpatient procedure. Ultrasound imaging is used to map the veins of the legs, as well as to direct the insertion and placement of a laser fiber that is used to deliver the laser energy to targeted veins. Once the provider identifies the faulty veins, a local anesthetic is administered to ensure patient comfort prior to beginning the procedure. Recipients can return to regular activities, except strenuous exercise, right after the procedure. Compression stockings should be worn for one week to ensure proper healing and a follow up visit will be scheduled approximately one week after the initial treatment ...
Endovenous laser ablation is a noninvasive procedure for treating large, deep varicose veins in the leg. Laser energy is applied to the wall of the vein, causing it to close, explains Healthline. The...
This forms a population inversion between the two states. Most excimer lasers are of the noble gas halide type, for which the term excimer is strictly speaking a misnomer (since a dimer refers to a molecule of two identical or similar parts): The correct but less commonly used name for such is exciplex laser. The wavelength of an excimer laser depends on the molecules used, and is usually in the ultraviolet: Excimer lasers, such as XeF and KrF, can also be made tunable using a variety of prism and grating intracavity arrangements. Excimer lasers are usually operated with a pulse rate of around 100 Hz and a pulse duration of ~10 ns, although some operate as high as 8 kHz and 200 ns. For electric discharge pump see: Nitrogen laser. The high-power ultraviolet output of excimer lasers makes them useful for surgery (particularly eye surgery), for lithography for semiconductor manufacturing, and for dermatological treatment. However, when in an excited state (induced by an electrical discharge or ...
Included patients: total of 240 (80 per arm). Study start: May 2007 (recruitment ongoing) Study completion: May 2011. Follow up after 3 months, 1, 2, 3, 4 and 5 years. Location: department of dermatology, Erasmus MC, Rotterdam, The Netherlands. Principle investigators: M. Kockaert, T. Nijsten & M. Neumann. Publications:. Rasmussen LH, Bjoern L, Lawaetz M, Blemings A, Lawaetz B, Eklof B. Randomized trial comparing endovenous laser ablation of the great saphenous vein with high ligation and stripping in patients with varicose veins: short-term results. J Vasc Surg. 2007 Aug;46(2):308-15. Epub 2007 Jun 27.. Sharif MA, Lau LL, Lee B, Hannon RJ, Soong CV. Role of endovenous laser treatment in the management of chronic venous insufficiency. Ann Vasc Surg. 2007 Sep;21(5):551-5.. Mundy L, Merlin TL, Fitridge RA, Hiller JE. Systematic review of endovenous laser treatment for varicose veins. Br J Surg. 2005 Oct;92(10):1189-94.. Jia X, Mowatt G, Burr JM, Cassar K, Cook J, Fraser C.Systematic review of foam ...
The American Heart Association explains the various cardiac procedures and heart surgeries for patients, such as Angioplasty, Percutaneous Coronary Interventions, PCI, Balloon Angioplasty, Coronary Artery Balloon Dilation, Percutaneous Coronary Interventions, PCI, Balloon Angioplasty, Coronary Artery Balloon Dilation, Angioplasty, Laser Angioplasty, Artificial Heart Valve Surgery, Atherectomy, Bypass Surgery, Cardiomyoplasty, Heart Transplant, Minimally Invasive Heart Surgery, Radiofrequency Ablation, Stent Procedure, Transmyocardial Revascularization and TMR.
A womans legs are often the last bastion of youth. Free of sagging and wrinkles, legs enjoy the light of day well into our senior years. But when a woman finds herself burdened with varicose veins, a future of fashionable tennis matches and summer dresses seems hopeless. However, advances in laser therapy have not only put an end to painful vein stripping but have ushered in a new era of effective varicose vein treatment.. Causes of Varicose Veins. Your bodys circulatory system is made up of More on Varicose Laser Therapy. ...
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English/Instructions for Use... 1 Español/ Instrucciones de uso... 3 VARI-LASE BRIGHT TIP Endovenous Laser Procedure Kit and Components Instructions For Use USA CAUTION Federal (USA) law restricts this
Evaluation of the Efficacy of Excimer Laser Ablation of Cross-Linked Porcine Cornea. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
You are at: Home » Products » Health Projects » Durable Micro Channel Cooling 808nm Diode Laser Ba In total 213268 number ofProductsinfo,Released today. 0 number of ...
The efficient pumping of N2 and He/Kr/F2 (45:3:1) laser mixture by longitudinal electric discharge in the form of powerful breakdown ionization wave at driving pulse voltage of -120 kV amplitude, 40 ns duration, 3 ns rise time has been demonstrated. The developed gives us a possibility to excite a nitrogen and an excimer laser mixture with specific stopping energies about 2,1 J/cm3 and 1,9 J/cm3 corresponding as well as to produce laser action in N2 with output power up to 100 kW in pulse having a duration of 10 ns FWHM with excellent laser beam quality ...
Excimer laser annealing (ELA) of As-, B- and BF2-implanted Si has been studied by secondary ion mass spectrometry (SIMS), spreading resistance probe (SRP) and transmission electron microscopy (TEM). The implantations have been performed in the energy range from I to 30 keV with doses of 10(15)-10(16) cm(-2). ELA has been carried out with the energy densities in the range of 600-1200 mJ/cm(2) and the number of laser pulses from 1 to 10. It is shown that ELA results in a more uniform dopant distribution over the doped region with a more abrupt profile edge as compared to those after rapid thermal annealing (RTA). Besides, in contrast to RTA, ELA demonstrates a highly confined annealing effect, where the distribution of dopants below the melting region is not affected. SRP measurements demonstrate almost complete activation of the implanted dopants after ELA, and TEM does not reveal extended defects in the ELA-treated samples. The depth of the doped layers, abruptness of the profiles and the total ...
Cardiovascular surgeon Dr. David Greuner performs a minimally invasive, no-knife endovenous laser treatment, which can eliminate varicose veins with...
EVLT (endovenous laser treatment) course for treating varicose veins. Prof Mark Whiteley runs a regular EVLT course for AngioDynamics at The Whiteley Clinic
Since the mid 1990s wire mesh stents have become a standard part of the angioplasty procedure. Unfortunately, these wire cylinders (stents) irritate the smooth muscle cells of the artery walls causing these cells to grow aggressively (to proliferate). This growth is an effort by the body to cover up the foreign metal that has just been introduced into the artery by the surgeon. This should not be surprising. Whenever an irritating alien material is placed in the body, cells grow around it in order to isolate the unfamiliar substance, which the body perceives as potentially harmful. The growth of the muscle cells (and blood clots) eventually closes 20% to 41% of the arteries containing these metal mesh stents.8 Furthermore, the use of stents results in no better survival than angioplasty alone7,9-and remember angioplasty does not improve the chances of living longer.3,4 If only treatments could be developed to stop these cells from growing. Scientists had to look no further than cancer therapy to ...
A semiempirical model of a pulsed, injection-controlled laser is investigated analytically and is applied primarily to extensive experimental results that
In this report, the global Cerebral Balloon Angioplasty & Stenting Systems market is valued at USD XX million in 2017 and is expected to reach USD XX million by the end of 2025, growing at a CAGR of XX% between 2017 and 2025. Geographically, this report split global into several key Regions, with
... definition, a method of opening a clogged or narrowed blood vessel in which a small balloon is introduced into the vessel by means of a catheter and then inflated at the site of blockage. See more.
Im not sure where to find the code for cryotherapy. This patient had iliac balloon angioplasty done also balloon cryotherapy done during the same ope
Health,Each year more than 600000 Americans have angioplasty procedures to ...In a paper published in the journal Circulation a group of Michiga...The project is led by researchers from the University of Michigan C...The results yielded a dramatic before and after contrast. Befor...There was also wide variation in how patients did afterward includ...,Study,finds,room,for,improvement,in,angioplasty,,shows,what,can,be,done,to,cut,risks,medicine,medical news today,latest medical news,medical newsletters,current medical news,latest medicine news
Alpine Research Optics (ARO) has introduced a new series of high-performance flat mirrors intended for general purpose beam-steering tasks in ultrav
TY - CONF. T1 - Interaction of the deployment system and arterial wall during balloon angioplasty. AU - Delorme, Sébastien. AU - Laroche, Denis. AU - DiRaddo, Robert. AU - Buithieu, Jean. AU - Stadler, Michael. AU - Holzapfel, Gerhard. PY - 2004. Y1 - 2004. M3 - Poster. ER - ...
Health,A new study finds angioplasty should be the treatment of choice for he...Research has shown heart attack patients fare better when they are t...Danish investigators provide evidence reversing conventional wisdom....Researchers analyzed results looking at a combination of death cli...,Angioplasty,Should,be,the,Standard,medicine,medical news today,latest medical news,medical newsletters,current medical news,latest medicine news
I have just come across this news on angioplasty (NOT for IJV or azygos): For many patients, angioplasty is NOT in their best interest By Jenny Thompson on 11/19/2010 The landscape of medical history is littered with procedures not in ...
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The Global Atherectomy Devices Market is expected to reach USD 894.69 million by 2025, based on a new report by Hexa Reports. The demand for atherectomy de
Improved methods of modifying target surfaces through ablation are disclosed resulting in a reduction of debris redeposition on the target surface.
Angioplasty risks are of two types - those that occur during the procedure, and those that occur a few months after the procedure. Read on to learn more.
Press release - Market Expertz - Atherectomy Devices Market Size, Share Growth, Trends, Devices, Applications, Competitive Analysis, Industry Expansion Strategies, By 2027 - published on openPR.com
Hi, Im Catherine diagnosed with stage 1 Mucinous Cystadenacarcimoma in 1988. Massive tumour, so debulking followed by check ups for 5 years. Thankfully and very, very luckily disease free (so far...
Endovenous laser treatment (ELT) is a minimally invasive ultrasound-guided technique used for treating varicose veins using laser energy commonly performed by a phlebologist, interventional radiologist or vascular surgeon. Endovenous laser treatment treats varicose veins using an optical fiber that is inserted into the vein to be treated, and laser light, normally in the infrared portion of the spectrum, shines into the interior of the vein. This causes the vein to contract, and the optical fiber is slowly withdrawn. Some minor complications can occur, including thrombophlebitis, pain, hematoma, edema and infection, which can lead to cellulitis. EVLT has the same meaning as ELT, but it is a trademark name owned by Diomed and used as the name for their 910 nm laser treatment unit for ELT. The 810 nm laser is the original laser fiber wavelength as pioneered by Dr. Robert Min of New York, USA. Subsequently, various other fibers with different wavelengths have become available. The varying ...
During endovenous laser ablation, which is performed as an alternative to surgery for the treatment of superficial venous insufficiency of lower extremity and associated varicose veins, it was realised that the distal end of the catheter protecting the fibre sheared off; the retained catheter fragment in the saphenous vein was removed by a mini incision. Herein, we aim to present a rare complication of endovenous laser ablation. ...
As the treatment of varicose veins has progressed , so has the science involved and now patients can opt for laser treatment that uses a more sophisticated radial fibre that emits the laser light in an arc around the end of the fibre rather than in a thin beam. Evidence has suggested that the use of these radial fibres aids and quickens recovery - although both methods are just as successful as each other.. Radial fibre endovenous laser ablation (EVLA) and the more standard non radial variety are both highly effective in the treatment of varicose veins, although we do find that patients may feel they want to choose the radial fibre option for greater piece of mind.. A duplex ultrasound is used to guide the laser treatment that damages the faulty vein wall making it impossible for the blood to flow through it. This stops the bulging and the blood is diverted to the healthy, working veins in the leg.. The ELVeS™ and EVLT™ are varicose vein treatments that are quick, minimally invasive ...
Excimer: Ablation on Human Hair The unparalleled precision of the excimer laser makes it uniquely suited to the task of refractive corneal surgery. Each pulse of the laser removes 0.25 microns of tissue. Think of it as slicing 1/200 of a human hair, 1/28 of a red blood cell, or 1/39 millionth of an inch in 4 billionths of a second. This allows the surgeon to literally sculpt the cornea, gently and precisely, into a more desirable shape that allows rays of light to focus properly on the retina.. Myopic Correction. As explained previously, patients with nearsightedness have corneas that are too steep for the length of their eyes. The excimer laser is used to flatten the cornea so that the light rays that pass through it come to a point of focus on the retina, rather than in front of it.. Hyperopic Correction. Patients with hyperopia have corneas that are too flat for the length of their eye. The excimer laser is used to steepen the cornea so that light rays are focused on the retina, rather than ...
Dr. Amanda Lloyd offers effective, minimally-invasive treatment for varicose veins at her Encinitas office. Call (760) 642-6674 to schedule a consultation
Looking for online definition of Doppler Endpoints Balloon Angioplasty Trial Europe in the Medical Dictionary? Doppler Endpoints Balloon Angioplasty Trial Europe explanation free. What is Doppler Endpoints Balloon Angioplasty Trial Europe? Meaning of Doppler Endpoints Balloon Angioplasty Trial Europe medical term. What does Doppler Endpoints Balloon Angioplasty Trial Europe mean?
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Smart Tips For Finding Tips. Your lifestyle can help improve or worsen the symptoms of varicose veins, so its important you watch out for any activities or habits that may not help with your case. If youre obese, try losing weight so that theres less pressure on your legs. In addition, walking can also help with symptoms of varicose veins.. Endovenous Laser Therapy With endovenous therapy, a tiny laser fiber is placed into the vein. Then, pulses of laser light are beamed through the fiber into the varicose vein, destroying it. This is a procedure you can undergo on an outpatient basis under local anesthesia.. Radiofrequency Occlusion. Radiofrequency occlusion entails the placement of a small catheter into the vein. The purpose of this catheter is to transmit radiofrequency energy to the affected veins wall, heating it and causing it to collapse and close shut. Normally, this ought to be an outpatient therapy, and sometimes it requires local anesthesia.. Surgical Methods. There are several ...
Excimer laser ablations to the cornea (PresbyLASIK) to create a multifocal cornea may be an alternative treatment for patients with presbyopia
Excimer laser ablations to the cornea (PresbyLASIK) to create a multifocal cornea may be an alternative treatment for patients with presbyopia
Endovenous laser therapy (EVLT) is one of the more recent advances, enabling us to treat varicose veins in an almost painless fashion. Read more.
SCHAUMBURG, IL--(Marketwired - Jun 4, 2013) - A new vein treatment center in the Chicago area is now relieving varicose vein sufferers using a painless, affordable treatment called endovenous laser therapy. Skypoint Medical Centers new Vein Center in Schaumburg provides this minimally invasive, in-office treatment alternative to vein surgery for...
We report the successful operation of a visible optical parametric oscillator (OPO) that uses urea as the nonlinear medium and is pumped in the near field of an injection-seeded pulsed XeCl excimer laser operating at 308 nm The OPO can generate continuously tunable radiation from 537 to 720 nm with a single set of dichroic mirrors and conversion efficiencies as high as 37% have been achieved in a 15-mm-long crystal at 90° phase matching. The influence of crystal double refraction (and hence beam walk-off) on the conversion efficiency across the OPO tuning range is discussed, and some oscillator parameters, including spectral linewidth and temporal behavior are characterized.. © 1989 Optical Society of America. Full Article , PDF Article ...
EVLT Endovenous Laser Treatment is a revolutionary treatment for significant varicose veins cause by incompetence of the deep vein system.
Since 2004, VeinTherapies has brought the latest in laser vein technologies to Indian River County. We are one of the oldest and most experienced practices in our area exclusively dedicated to bringing our clients the newest, safest and most effective venous treatments. Our state-of-the-art lasers allow us to literally turn back time. At VeinTherapies, we can combine several techniques to customize a treatment plan and achieve the best possible results with little or no down time. We combine an extensive Vein Evaluation, Endovenous Laser Treatment or ELT, Microphlebectomy, Sclerotherapy, Laser Vein Therapy and Veinwave to achieve the best results for you ...
Doctors for Balloon Angioplasty in Delhi. Find Doctors Near You, Book Doctors Appointment, Consult Online, View Cost for Balloon Angioplasty in Delhi | Lybrate
Sequence illustrating the steps of balloon angioplasty in an artery suffering from Atherosclerosis. This procedure guides a deflated balloon into the narrowed artery. The balloon is inflated and as a result crushes the plaque into the walls of the artery. The balloon is deflated and removed leaving the passageway open for easy blood flow. Image 2 of 4. The pathology this procedure is used for is shown in images BP4210 and BP4211. - Stock Image C007/5682
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Research Report on Europe Cerebral Balloon Angioplasty & Stent Market Report 2017. The Report includes market price, demand, trends, size, Share, Growth, Forecast, Analysis & Overview.
You must tell DVLA if you have a balloon angioplasty in your leg and drive a bus, coach or lorry - download the correct form to let them know
An excimer gas laser using a fluorine/krypton/neon gas mixture is provided with separate fluorine/krypton/neon and krypton/neon gas sources for use in replenishing the gas mixture. A bleed-down mechanism is also provided for draining a portion of the gas mixture from the excimer laser. A control mechanism controls operation of the separate fluorine/krypton/neon and krypton/neon sources and the bleed-down mechanism to selectively vary the gas mixture within the excimer laser to maintain an overall optimal laser efficiency. Preferably, the control system monitors operational parameters of the excimer laser including gain, wavelength, bandwidth and pulse rate, to determine whether the gas mixture within the excimer laser may have changed from an optimal mixture. The control system controls operation of the separate fluorine/krypton/neon and krypton/neon sources to compensate for changes in the operation parameters of the laser to thereby maintain high overall laser efficiency. Alternatively, gas
Endovenous laser ablation may be associated with significant pain when performed under standard local tumescent anesthesia. The purpose of this study was to investigate the efficacy of femoral and sciatic nerve blocks for analgesia during endovenous ablation in patients with lower extremity venous insufficiency. During a 28-month period, ultrasound-guided femoral or sciatic nerve blocks were performed to provide analgesia during endovenous laser ablation in 506 legs and 307 patients. The femoral block (n = 402) was performed at the level of the inguinal ligament, and the sciatic block at the posterior midthigh (n = 124), by injecting a diluted lidocaine solution under ultrasound guidance. After the blocks, endovenous laser ablations and other treatments (phlebectomy or foam sclerotherapy) were performed in the standard fashion. After the procedures, a visual analogue pain scale (1-10) was used for pain assessment. After the blocks, pain scores were 0 or 1 (no pain) in 240 legs, 2 or 3 ...
China 2016 New Arrival 808nm Diode Laser Hair Removal Medical Device, Find details about China 808nm Laser, Shr from 2016 New Arrival 808nm Diode Laser Hair Removal Medical Device - Liso Laser Co., Ltd.

Most recent papers with the keyword Excimer laser coronary angioplasty | Read by QxMDMost recent papers with the keyword Excimer laser coronary angioplasty | Read by QxMD

Coronary aneurysm is a rare complication after coronary excimer laser angioplasty. A 45-year-old woman underwent laser ... Treatment of in-stent restenosis with excimer laser coronary angioplasty: benefits over scoring balloon angioplasty alone. ... treatment-of-in-stent-restenosis-with-excimer-laser-coronary-angioplasty-benefits-over-scoring-balloon-angioplasty-alone ... Other indications for laser angioplasty embrace in-stent restenosis, chronic total occlusions, saphenous vein graft lesions and ...
more infohttps://www.readbyqxmd.com/keyword/9843

Patent US5989243 - Excimer laser angioplasty system - Google PatentsPatent US5989243 - Excimer laser angioplasty system - Google Patents

The distal end of the waveguide can have a short section of larger diameter fiber fused to it to cause a laser beam transmitted ... Grundfest, W.S., Pulsed Ultraviolet Lasers and the Potential for Safe Laser Angioplasty, The American Journal of Surgery, vol. ... Grundfest, W.S., Pulsed Ultraviolet Lasers and the Potential for Safe Laser Angioplasty, The American Journal of Surgery, vol. ... White, R.A., "Catheters for Laser Angioplasty--Design Considerations", Lasers in Cardiovascular Disease: Clinical Applications ...
more infohttp://www.google.com/patents/US5989243?dq=7,013,345/

Intravascular ultrasound imaging after excimer laser angioplasty.Intravascular ultrasound imaging after excimer laser angioplasty.

To help elucidate the mechanism of excimer laser coronary angioplasty (ELCA), intravascular ultrasound (IVUS) imaging was ... Angioplasty, Laser* / adverse effects. Angioplasty, Transluminal, Percutaneous Coronary. Coronary Artery Disease / pathology, ... To help elucidate the mechanism of excimer laser coronary angioplasty (ELCA), intravascular ultrasound (IVUS) imaging was ... 2013078 - Angioplasty of coronary bifurcation stenoses: immediate and long-term results of the pr.... 1398688 - Angioplasty of ...
more infohttp://www.biomedsearch.com/nih/Intravascular-ultrasound-imaging-after-excimer/7954768.html

US4760845A - Laser angioplasty probe 
        - Google PatentsUS4760845A - Laser angioplasty probe - Google Patents

... to facilitate conversion of laser energy to thermal energy. The probe body is fixedly secured to the optical fiber by a ... the proximal end of the fiber being connectable to a source of laser energy. The probe assembly comprises a thermally ... A laser-energizable thermal probe comprising a probe assembly connected to the distal end of an optical fiber, ... US4760845A - Laser angioplasty probe - Google Patents. Laser angioplasty probe Download PDF Info. Publication number. ...
more infohttps://patents.google.com/patent/US4760845A/en

Percutaneous angioscopy of sapphire-tip laser angioplasty | (1990) | Rees |  Publications | SpiePercutaneous angioscopy of sapphire-tip laser angioplasty | (1990) | Rees | Publications | Spie

Prior to laser angioplasty, angioscopy demonstrated endoluminal findings that were not detected by angiography. Following laser ... Percutaneous angioscopy of sapphire-tip laser angioplasty Author(s): Michael Ralph Rees; Abdurrazak A. Gehani; Simon Ashley; ... guiding catheter system was used to evaluate the endoluminal appearances before and after laser angioplasty using ND-YAG laser ... angioplasty it was observed that the probes predominantly recanalised via the true lumen of the vessel with charring and other ...
more infohttp://spie.org/Publications/Proceedings/Paper/10.1117/12.17515

Management of failed angioplasty with laser balloon angioplasty | (1990) | Jenkins |  Publications | SpieManagement of failed angioplasty with laser balloon angioplasty | (1990) | Jenkins | Publications | Spie

Laser balloon angioplasty (LBA) is a technique for improving the post angioplasty result by the radial diffusion of continuous ... Management of failed angioplasty with laser balloon angioplasty Author(s): Ronald D. Jenkins; J. Richard Spears ... YAG laser energy to the arterial wall during the final inflation of percutaneous transluminal coronary angioplasty (PTCA). ...
more infohttp://spie.org/Publications/Proceedings/Paper/10.1117/12.17521

US5133709A - Optical fiber with atraumatic rounded end for use in laser angioplasty 
        - Google PatentsUS5133709A - Optical fiber with atraumatic rounded end for use in laser angioplasty - Google Patents

An optical radiating apparatus is formed on one end of a light-conducting optical fiber such that high intensity laser ... An apparatus for delivery of high intensity laser radiation of large spot size into arteries and a method for making same are ... Early laser angioplasty systems, however, have not taken full advantage of the unique properties of laser radiation. As a ... Optical fiber with atraumatic rounded end for use in laser angioplasty US07/919,150 Expired - Fee Related US5304228A (en) 1990- ...
more infohttps://patents.google.com/patent/US5133709A/en

Comparison of 0.9-mm and 1.4-mm catheters in excimer laser coronary angioplasty for acute myocardial infarction.Comparison of 0.9-mm and 1.4-mm catheters in excimer laser coronary angioplasty for acute myocardial infarction.

Excimer laser coronary angioplasty (ELCA) is a unique revascularization modality that can vaporize plaque and thrombus. ... This includes laser thermal angioplasty where the laser energy heats up a metal tip, and direct laser angioplasty where the ... When laser angioplasty is performed in combination with balloon angioplasty it is called laser-assisted balloon angioplasty ( ... balloon angioplasty immediately following laser angioplasty; or 3, laser energy transmitted through angioplasty balloons that ...
more infohttps://www.bioportfolio.com/resources/pmarticle/2318300/Comparison-of-0-9-mm-and-1-4-mm-catheters-in-excimer.html

Comparison of Immediate and 2-Year Outcomes between Excimer Laser-Assisted Angioplasty with Spot Stent and Primary Stenting in...Comparison of Immediate and 2-Year Outcomes between Excimer Laser-Assisted Angioplasty with Spot Stent and Primary Stenting in...

Comparison of Immediate and 2-Year Outcomes between Excimer Laser-Assisted Angioplasty with Spot Stent and Primary Stenting in ... "Comparison of Immediate and 2-Year Outcomes between Excimer Laser-Assisted Angioplasty with Spot Stent and Primary Stenting in ...
more infohttps://www.hindawi.com/journals/tswj/2013/247102/cta/

A Study of the Radiological Use of Laser Angioplasty in Britain  - Kingston University Research RepositoryA Study of the Radiological Use of Laser Angioplasty in Britain - Kingston University Research Repository

Mark, N.J., Augousti, A.T. and Belli, A.-M. (1996) A Study of the Radiological Use of Laser Angioplasty in Britain. Lasers in ... Laser recanalization was introduced and developed in Britain in the 1980s in an attempt to deal with the limitations associated ... However, despite current disenchantment, the majority of radiologists questioned felt that lasers could have a future role to ... the high cost of the laser system, and the lack of evidence of any improvement in results compared with conventional PTA. ...
more infohttp://eprints.kingston.ac.uk/39027/

The mechanism and prognosis of vessel perforation following excimer laser coronary angioplasty in the new generation laser...The mechanism and prognosis of vessel perforation following excimer laser coronary angioplasty in the new generation laser...

Coronary artery perforation during excimer laser coronary angioplasty. The percutaneous Excimer Laser Coronary Angioplasty ... The mechanism and prognosis of vessel perforation following excimer laser coronary angioplasty in the new generation laser ... "The mechanism and prognosis of vessel perforation following excimer laser coronary angioplasty in the new generation laser ... "The mechanism and prognosis of vessel perforation following excimer laser coronary angioplasty in the new generation laser ...
more infohttps://www.termedia.pl/The-mechanism-and-prognosis-of-vessel-perforation-following-excimer-laser-coronary-angioplasty-in-the-new-generation-laser-catheter-era,35,37676,1,1.html

catheters-vascular-angioplasty-direct-laser-ablationcatheters-vascular-angioplasty-direct-laser-ablation

Catheters, Vascular, Angioplasty, Direct Laser Ablation. Definition : Angioplasty catheters designed for direct laser ablation ... " , "Laser Ablation Catheters" , "Laser Angioplasty Catheters" , "Catheters, Angioplasty, Laser" , "Ablation Catheters" , " ... Laser angioplasty catheters are mostly used before balloon angioplasty for canalization of completely occluded vessels, for ... The Spectranetics Corporation was founded in the 1980s on excimer laser technology and today markets the only Excimer Laser ...
more infohttp://www.medicalproductguide.com/term/3153/catheters-vascular-angioplasty-direct-laser-ablation

Randomized Study of Laser and Balloon Angioplasty Versus Balloon Angioplasty to Treat Peripheral In-stent Restenosis - Full...Randomized Study of Laser and Balloon Angioplasty Versus Balloon Angioplasty to Treat Peripheral In-stent Restenosis - Full...

laser, then balloon angioplasty. Device: Turbo Elite Laser and Turbo Tandem Laser Guide Catheters application of laser energy ... Device: Turbo Elite Laser and Turbo Tandem Laser Guide Catheters Procedure: Balloon angioplasty Phase 2 Phase 3 ... Randomized Study of Laser and Balloon Angioplasty Versus Balloon Angioplasty to Treat Peripheral In-stent Restenosis (EXCITE ... The purpose of the study is to evaluate the safety and efficacy of laser atherectomy with balloon angioplasty compared to ...
more infohttps://clinicaltrials.gov/ct2/show/NCT01330628?recr=Open&intr=angioplasty&rank=12

Randomized Study of Laser and Balloon Angioplasty Versus Balloon Angioplasty to Treat Peripheral In-stent Restenosis - Full...Randomized Study of Laser and Balloon Angioplasty Versus Balloon Angioplasty to Treat Peripheral In-stent Restenosis - Full...

laser, then balloon angioplasty. Device: Turbo Elite Laser and Turbo Tandem Laser Guide Catheters application of laser energy ... Device: Turbo Elite Laser and Turbo Tandem Laser Guide Catheters Procedure: Balloon angioplasty Phase 2 Phase 3 ... Randomized Study of Laser and Balloon Angioplasty Versus Balloon Angioplasty to Treat Peripheral In-stent Restenosis (EXCITE ... The purpose of the study is to evaluate the safety and efficacy of laser atherectomy with balloon angioplasty compared to ...
more infohttps://clinicaltrials.gov/ct2/show/study/NCT01330628?show_locs=Y

TCT-589 Effectiveness of Excimer Laser Coronary Angioplasty with Optical Coherence Tomography Guidance for In-stent Restenosis...TCT-589 Effectiveness of Excimer Laser Coronary Angioplasty with Optical Coherence Tomography Guidance for In-stent Restenosis...

Recently, excimer laser coronary angioplasty (ELCA) with angiographic or intra vascular ultrasound guidance failed to show its ... TCT-589 Effectiveness of Excimer Laser Coronary Angioplasty with Optical Coherence Tomography Guidance for In-stent Restenosis ... TCT-589 Effectiveness of Excimer Laser Coronary Angioplasty with Optical Coherence Tomography Guidance for In-stent Restenosis ... TCT-589 Effectiveness of Excimer Laser Coronary Angioplasty with Optical Coherence Tomography Guidance for In-stent Restenosis ...
more infohttp://www.onlinejacc.org/content/68/18_Supplement/B239.2

Excimer Laser Angioplasty in Calcified Coronary Lesions: Evidence of Calcium Ablation by Optical Coherence Tomography |...Excimer Laser Angioplasty in Calcified Coronary Lesions: Evidence of Calcium Ablation by Optical Coherence Tomography |...

Excimer Laser Angioplasty in Calcified Coronary Lesions: Evidence of Calcium Ablation by Optical Coherence Tomography During ... Excimer Laser Angioplasty in Calcified Coronary Lesions: Evidence of Calcium Ablation by Optical Coherence Tomography. Baskaran ... Excimer Laser Angioplasty in Calcified Coronary Lesions: Evidence of Calcium Ablation by Optical Coherence Tomography ... Citation: Chandrasekar B, Mutairi MAl, Merri KAl (2015) Excimer Laser Angioplasty in Calcified Coronary Lesions: Evidence of ...
more infohttps://www.scitechnol.com/excimer-laser-angioplasty-incalcified-coronary-lesionsevidence-of-calcium-ablationby-optical-coherencetomography-AqY0.php?article_id=3251

Comparison of Angioplasty/Drug Coated Balloon/Laser + Drug Coated Balloon for Femoropopliteal Artery In-stent Restenosis |...Comparison of Angioplasty/Drug Coated Balloon/Laser + Drug Coated Balloon for Femoropopliteal Artery In-stent Restenosis |...

Comparison of Angioplasty/Drug Coated Balloon/Laser + Drug Coated Balloon for Femoropopliteal Artery In-stent Restenosis ... Comparison of Angioplasty/Drug Coated Balloon/Laser + Drug Coated Balloon for Femoropopliteal Artery In-stent Restenosis Are ...
more infohttps://www.centerwatch.com/clinical-trials/listings/169824/angioplasty-balloon-comparison-angioplastydrug-coated-balloonlaser/?section=elg&geo_lat=45.764043&geo_lng=4.835659&radius=10

Laser-driven short-duration heating angioplasty: dilatation performance in cadaver atherosclerotic femoral arteries | (2013) |...Laser-driven short-duration heating angioplasty: dilatation performance in cadaver atherosclerotic femoral arteries | (2013) |...

Laser-driven short-duration heating angioplasty: dilatation performance in cadaver atherosclerotic femoral arteries Author(s): ... 25 s by a combination of laser-driven heat generation and continuous fluid irrigation in the balloon. We performed ex vivo ... laser irradiation duration of 25 s, and balloon dilatation pressure of 3.5 atm. The artery lumen configurations before and ...
more infohttps://www.spie.org/Publications/Proceedings/Paper/10.1117/12.2005432?origin_id=x4318

Angioplasty, Balloon, Laser-Assisted | Colorado PROFILESAngioplasty, Balloon, Laser-Assisted | Colorado PROFILES

... balloon angioplasty immediately following laser angioplasty; or 3, laser energy transmitted through angioplasty balloons that ... Laser-Assisted" by people in this website by year, and whether "Angioplasty, Balloon, Laser-Assisted" was a major or minor ... Techniques using laser energy in combination with a balloon catheter to perform angioplasty. These procedures can take several ... "Angioplasty, Balloon, Laser-Assisted" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, ...
more infohttps://profiles.ucdenver.edu/display/209594

Solid-state, pulsed-wave, mid-infrared coronary laser angioplasty in de novo versus restenosis lesions: Observations from a...Solid-state, pulsed-wave, mid-infrared coronary laser angioplasty in de novo versus restenosis lesions: Observations from a...

Topaz, O., McIvor, M., & De Marchena, E. (1995). Solid-state, pulsed-wave, mid-infrared coronary laser angioplasty in de novo ... Topaz, O, McIvor, M & De Marchena, E 1995, Solid-state, pulsed-wave, mid-infrared coronary laser angioplasty in de novo versus ... Solid-state, pulsed-wave, mid-infrared coronary laser angioplasty in de novo versus restenosis lesions: Observations from a ... Solid-state, pulsed-wave, mid-infrared coronary laser angioplasty in de novo versus restenosis lesions: Observations from a ...
more infohttps://miami.pure.elsevier.com/en/publications/solid-state-pulsed-wave-mid-infrared-coronary-laser-angioplasty-i

Quantitative angiographic comparison of elastic recoil after coronary excimer laser-assisted balloon angioplasty and balloon...Quantitative angiographic comparison of elastic recoil after coronary excimer laser-assisted balloon angioplasty and balloon...

Minimal lumen diameter before excimer laser-assisted balloon angioplasty and balloon angioplasty alone were (mean ± SD) 0.73 ± ... After laser-assisted balloon angioplasty, elastic recoil was 0.84 ± 0.30 mm (32% of balloon size), which was identical to that ... A series of 57 consecutive coronary lesions successfully treated by xenon chloride excimer laser-assisted balloon angioplasty ... Coronary lumen changes during and after excimer laser-assisted balloon angioplasty were measured by quantitative coronary ...
more infohttp://www.onlinejacc.org/content/25/2/378

About this guidance | Percutaneous laser atherectomy as an adjunct to balloon angioplasty (with or without stenting) for...About this guidance | Percutaneous laser atherectomy as an adjunct to balloon angioplasty (with or without stenting) for...

Evidence-based recommendations on percutaneous laser atherectomy with balloon angioplasty (with or without stenting) for ... Percutaneous laser atherectomy as an adjunct to balloon angioplasty (with or without stenting) for peripheral arterial disease ...
more infohttps://www.nice.org.uk/guidance/ipg433/chapter/About-this-guidance

Percutaneous laser atherectomy as an adjunct to balloon angioplasty (with or without stenting) for peripheral arterial disease ...Percutaneous laser atherectomy as an adjunct to balloon angioplasty (with or without stenting) for peripheral arterial disease ...

Evidence-based recommendations on percutaneous laser atherectomy with balloon angioplasty (with or without stenting) for ... Percutaneous laser atherectomy as an adjunct to balloon angioplasty (with or without stenting) for peripheral arterial disease ... Scotland and Northern Ireland on Percutaneous laser atherectomy as an adjunct to balloon angioplasty (with or without stenting ... For this procedure, a laser attached to a flexible plastic tube (a catheter) is inserted into a blood vessel in the leg and ...
more infohttps://www.nice.org.uk/guidance/ipg433

Cardiac Procedures and SurgeriesCardiac Procedures and Surgeries

Balloon Angioplasty, Coronary Artery Balloon Dilation, Angioplasty, Laser Angioplasty, Artificial Heart Valve Surgery, ... Balloon Angioplasty, Coronary Artery Balloon Dilation, Percutaneous Coronary Interventions, PCI, ... Angioplasty, Laser What the Procedure Does. Similar to angioplasty except that the catheter has a laser tip that opens the ... Angioplasty Also known as Percutaneous Coronary Interventions [PCI], Balloon Angioplasty and Coronary Artery Balloon Dilation ...
more infohttps://www.heart.org/HEARTORG/Conditions/HeartAttack/PreventionTreatmentofHeartAttack/Cardiac-Procedures-and-Surgeries_UCM_303939_Article.jsp

Cardiac Procedures and Surgeries | American Heart AssociationCardiac Procedures and Surgeries | American Heart Association

Balloon Angioplasty, Coronary Artery Balloon Dilation, Angioplasty, Laser Angioplasty, Artificial Heart Valve Surgery, ... such as Angioplasty, Percutaneous Coronary Interventions, PCI, Balloon Angioplasty, Coronary Artery Balloon Dilation, ... Angioplasty, Laser. What the Procedure Does. Similar to angioplasty except that the catheter has a laser tip that opens the ... Angioplasty. Also known as Percutaneous Coronary Interventions [PCI], Balloon Angioplasty and Coronary Artery Balloon Dilation ...
more infohttps://www.heart.org/en/health-topics/heart-attack/treatment-of-a-heart-attack/cardiac-procedures-and-surgeries?s=q%253Dballoon%252520angioplasty%2526sort%253Drelevancy
  • The distal end of the waveguide can have a short section of larger diameter fiber fused to it to cause a laser beam transmitted through the fiber to expand as it emerges from the waveguide to provide a larger ablation area. (google.com)
  • To report the outcomes of laser in situ keratomileusis (LASIK) for hyperopia using the Triple-A ablation profile with the MEL 90 excimer laser (Carl Zeiss Meditec, Jena, Germany). (bioportfolio.com)
  • The following variables were measured by quantitative coronary analysis: 1) ablation by laser, 2) stretch by balloon dilation, 3) elastic recoil, and 4) acute gain. (onlinejacc.org)
  • Laser ablation significantly improved minimal lumen diameter by 0.56 ± 0.44 mm before adjunctive balloon dilation. (onlinejacc.org)
  • The Spectranetics Corporation was founded in the 1980s on excimer laser technology and today markets the only Excimer Laser System approved in the United States, Canada, Europe and Japan for use in minimally invasive interventional procedures within the cardiovascular system. (medicalproductguide.com)
  • A pulse-wave xenon chloride excimer laser (Spectranetics CVX-300, Spectranetics, Colorado Springs, Colorado) was applied. (termedia.pl)
  • With the mid-infrared, pulsed-wave, holmium:YAG laser, the composition of the target lesion affects the energy level required, as well as the procedure-related complications. (elsevier.com)
  • Additional "firsts" from Texas Heart Institute include the first bridge-to-transplant with an LVAD in 1978, the first laser angioplasty procedure in America in 1985, and the first laser coronary endarterectomy procedure in America in 1985. (wikipedia.org)
  • The purpose of this study is to compare LASIK outcomes using the WaveLight ALLEGRETTO WAVE™ wavefront guided or optimized excimer laser treatment with the AMO/VISX CustomVue™ and the L. (bioportfolio.com)
  • However, an excimer laser, which can vaporize thrombus, suppress platelet aggregation, and ablate the underlying plaque, has recently been shown to be effective in patients with acute coronary syndrome (ACS) [ 5 ]. (termedia.pl)
  • 3. The angioplasty system of claim 1 wherein the energy-conducting core of each waveguide is surrounded by cladding that is made of glass material. (google.com)
  • 5. The angioplasty system of claim 1 wherein each pulse of said laser energy comprises a sequence of time shifted subpulses. (google.com)
  • A laser-energizable thermal probe comprising a probe assembly connected to the distal end of an optical fiber, the proximal end of the fiber being connectable to a source of laser energy. (google.com)
  • Endothelial cell density and corneal graft thickness following excimer laser vs. femtosecond laser-assisted penetrating keratoplasty-a prospective randomized study. (bioportfolio.com)
  • The study aims to compare the impact of non-mechanical excimer laser-assisted (EXCIMER) and femtosecond laser-assisted (FEMTO) trephinations on graft endothelial cell density (ECD) and graft thickness. (bioportfolio.com)
  • Mark, N.J. , Augousti, A.T. and Belli, A.-M. (1996) A Study of the Radiological Use of Laser Angioplasty in Britain. (kingston.ac.uk)
  • The laser was originally developed to study the ozone layer. (toptenz.net)
  • The laser itself uses ultraviolet light and is 65 degrees Celsius (149 Fahrenheit), which is enough to unblock the artery without damaging the human tissue. (toptenz.net)
  • It is not known whether the different composition affects results of treatment by laser. (elsevier.com)
  • We document in this report using optical coherence tomography imaging , the calcium ablator effects of excimer laser, an effect which has not been demonstrated thus far, to our knowledge. (scitechnol.com)