Microsurgical revascularization to improve intracranial circulation. It usually involves joining the extracranial circulation to the intracranial circulation but may include extracranial revascularization (e.g., subclavian-vertebral artery bypass, subclavian-external carotid artery bypass). It is performed by joining two arteries (direct anastomosis or use of graft) or by free autologous transplantation of highly vascularized tissue to the surface of the brain.
A noninflammatory, progressive occlusion of the intracranial CAROTID ARTERIES and the formation of netlike collateral arteries arising from the CIRCLE OF WILLIS. Cerebral angiogram shows the puff-of-smoke (moyamoya) collaterals at the base of the brain. It is characterized by endothelial HYPERPLASIA and FIBROSIS with thickening of arterial walls. This disease primarily affects children but can also occur in adults.
The restoration of blood supply to the myocardium. (From Dorland, 28th ed)
The arterial blood vessels supplying the CEREBRUM.
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.
Dilation of an occluded coronary artery (or arteries) by means of a balloon catheter to restore myocardial blood supply.
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.
Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.
The formation of an area of NECROSIS in the CEREBRUM caused by an insufficiency of arterial or venous blood flow. Infarcts of the cerebrum are generally classified by hemisphere (i.e., left vs. right), lobe (e.g., frontal lobe infarction), arterial distribution (e.g., INFARCTION, ANTERIOR CEREBRAL ARTERY), and etiology (e.g., embolic infarction).
NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION).
Bleeding within the SKULL that is caused by systemic HYPERTENSION, usually in association with INTRACRANIAL ARTERIOSCLEROSIS. Hypertensive hemorrhages are most frequent in the BASAL GANGLIA; CEREBELLUM; PONS; and THALAMUS; but may also involve the CEREBRAL CORTEX, subcortical white matter, and other brain structures.
The excision of the thickened, atheromatous tunica intima of a carotid artery.
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.
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.
Narrowing or stricture of any part of the CAROTID ARTERIES, most often due to atherosclerotic plaque formation. Ulcerations may form in atherosclerotic plaques and induce THROMBUS formation. Platelet or cholesterol emboli may arise from stenotic carotid lesions and induce a TRANSIENT ISCHEMIC ATTACK; CEREBROVASCULAR ACCIDENT; or temporary blindness (AMAUROSIS FUGAX). (From Adams et al., Principles of Neurology, 6th ed, pp 822-3)
An amphetamine analog that is rapidly taken up by the lungs and from there redistributed primarily to the brain and liver. It is used in brain radionuclide scanning with I-123.
The circulation of blood through the BLOOD VESSELS of the BRAIN.
Branch of the common carotid artery which supplies the anterior part of the brain, the eye and its appendages, the forehead and nose.
The part of brain that lies behind the BRAIN STEM in the posterior base of skull (CRANIAL FOSSA, POSTERIOR). It is also known as the "little brain" with convolutions similar to those of CEREBRAL CORTEX, inner white matter, and deep cerebellar nuclei. Its function is to coordinate voluntary movements, maintain balance, and learn motor skills.
Arteries originating from the subclavian or axillary arteries and distributing to the anterior thoracic wall, mediastinal structures, diaphragm, pectoral muscles, mammary gland and the axillary aspect of the chest wall.
Arteries originating from the subclavian or axillary arteries and distributing to the anterior thoracic wall, mediastinal structures, diaphragm, pectoral muscles and mammary gland.
Works about clinical trials that involve at least one test treatment and one control treatment, concurrent enrollment and follow-up of the test- and control-treated groups, and in which the treatments to be administered are selected by a random process, such as the use of a random-numbers table.
Published materials which provide an examination of recent or current literature. Review articles can cover a wide range of subject matter at various levels of completeness and comprehensiveness based on analyses of literature that may include research findings. The review may reflect the state of the art. It also includes reviews as a literary form.
Number of patients who need to be treated in order to prevent one additional bad outcome. It is the inverse of Absolute Risk Reduction.
Pathological conditions involving ARTERIES in the skull, such as arteries supplying the CEREBRUM, the CEREBELLUM, the BRAIN STEM, and associated structures. They include atherosclerotic, congenital, traumatic, infectious, inflammatory, and other pathological processes.
The condition of an anatomical structure's being constricted beyond normal dimensions.
Pathological conditions of intracranial ARTERIES supplying the CEREBRUM. These diseases often are due to abnormalities or pathological processes in the ANTERIOR CEREBRAL ARTERY; MIDDLE CEREBRAL ARTERY; and POSTERIOR CEREBRAL ARTERY.
A group of pathological conditions characterized by sudden, non-convulsive loss of neurological function due to BRAIN ISCHEMIA or INTRACRANIAL HEMORRHAGES. Stroke is classified by the type of tissue NECROSIS, such as the anatomic location, vasculature involved, etiology, age of the affected individual, and hemorrhagic vs. non-hemorrhagic nature. (From Adams et al., Principles of Neurology, 6th ed, pp777-810)
Vascular diseases characterized by thickening and hardening of the walls of ARTERIES inside the SKULL. There are three subtypes: (1) atherosclerosis with fatty deposits in the ARTERIAL INTIMA; (2) Monckeberg's sclerosis with calcium deposits in the media and (3) arteriolosclerosis involving the small caliber arteries. Clinical signs include HEADACHE; CONFUSION; transient blindness (AMAUROSIS FUGAX); speech impairment; and HEMIPARESIS.
Localized reduction of blood flow to brain tissue due to arterial obstruction or systemic hypoperfusion. This frequently occurs in conjunction with brain hypoxia (HYPOXIA, BRAIN). Prolonged ischemia is associated with BRAIN INFARCTION.
Adverse functional, metabolic, or structural changes in ischemic tissues resulting from the restoration of blood flow to the tissue (REPERFUSION), including swelling; HEMORRHAGE; NECROSIS; and damage from FREE RADICALS. The most common instance is MYOCARDIAL REPERFUSION INJURY.
Damage to the MYOCARDIUM resulting from MYOCARDIAL REPERFUSION (restoration of blood flow to ischemic areas of the HEART.) Reperfusion takes place when there is spontaneous thrombolysis, THROMBOLYTIC THERAPY, collateral flow from other coronary vascular beds, or reversal of vasospasm.
Restoration of blood supply to tissue which is ischemic due to decrease in normal blood supply. The decrease may result from any source including atherosclerotic obstruction, narrowing of the artery, or surgical clamping. It is primarily a procedure for treating infarction or other ischemia, by enabling viable ischemic tissue to recover, thus limiting further necrosis. However, it is thought that reperfusion can itself further damage the ischemic tissue, causing REPERFUSION INJURY.
Generally, restoration of blood supply to heart tissue which is ischemic due to decrease in normal blood supply. The decrease may result from any source including atherosclerotic obstruction, narrowing of the artery, or surgical clamping. Reperfusion can be induced to treat ischemia. Methods include chemical dissolution of an occluding thrombus, administration of vasodilator drugs, angioplasty, catheterization, and artery bypass graft surgery. However, it is thought that reperfusion can itself further damage the ischemic tissue, causing MYOCARDIAL REPERFUSION INJURY.
Artery originating from the internal carotid artery and distributing to the eye, orbit and adjacent facial structures.
Hospitals maintained by a university for the teaching of medical students, postgraduate training programs, and clinical research.
The part of the foot between the tarsa and the TOES.
The removal of a limb or other appendage or outgrowth of the body. (Dorland, 28th ed)
An alternative to amputation in patients with neoplasms, ischemia, fractures, and other limb-threatening conditions. Generally, sophisticated surgical procedures such as vascular surgery and reconstruction are used to salvage diseased limbs.
The region of the lower limb in animals, extending from the gluteal region to the FOOT, and including the BUTTOCKS; HIP; and LEG.
Death and putrefaction of tissue usually due to a loss of blood supply.
The inferior part of the lower extremity between the KNEE and the ANKLE.
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.
Directory signs or listings of designated areas within or without a facility.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
The organization, management, and assumption of risks of a business or enterprise, usually implying an element of change or challenge and a new opportunity.
A surgical specialty concerned with the treatment of diseases and disorders of the brain, spinal cord, and peripheral and sympathetic nervous system.

Giant basilar artery aneurysms encorporating the posterior cerebral artery: bypass surgery and coil occlusion--two case reports. (1/349)

Giant aneurysms of the basilar artery are rare. With a diameter of 25 mm or more they are often partially thrombosed and show atheromatous plaques. There are some problems in the treatment especially when the aneurysm is broadbased with bulbous origin encorporating the origin of the posterior cerebral artery (PCA). In many of these cases neither operative clipping alone nor coil embolization alone will be practical without causing an ischemia in the depending brain areas. We will report about two patients with giant aneurysms of the basilar artery involving the origin of the PCA and a combined surgical and interventional neuroradiological approach. Preoperatively both patients showed only mild neurological symptoms (slight left hemiparesis, incomplete hemianopsia). We anastomosed the superficial temporal artery as an extracranial-intracranial bypass end-to-side to the PCA followed by clipping the PCA out of the aneurysm. Next day embolization of the aneurysm with Guglielmi ditachable coils was done. Both patients recovered without complications. An angiographic control showed no more filling of the aneurysm and a free running bypass feeding the PCA. In our opinion this combined approach is an effective method to treat giant aneurysms of the basilar artery which involve the origin of the PCA when clipping alone is impossible.  (+info)

An indirect revascularization method in the surgical treatment of moyamoya disease--various kinds of indirect procedures and a multiple combined indirect procedure. (2/349)

The indirect non-anastomotic bypass procedures for moyamoya disease are herein reviewed, and our multiple combined indirect procedure, i.e. a fronto-parieto-temporal combined indirect bypass procedure, is also introduced. Direct procedures such as superficial temporal artery-middle cerebral artery anastomosis are able to form collaterals with a high reliability, but these procedures are often difficult to technically perform in small children, and complications, when they occur, tend to be severe. Indirect procedures, such as encephalo-duro-arterio-synangiosis (EDAS), encephalo-myo-synangiosis (EMS), and encephalo-myo-arterio-synangiosis (EMAS) etc., are safe and easy and also successfully form collaterals especially in children with moyamoya disease. However, there are a few drawbacks with such procedures. They do not always form sufficient collaterals. The area where the original EDAS using the posterior branch of the superficial temporal artery can be done is also limited. Moreover, because the area covered by each single procedure is small, the collateral formation obtained by a single procedure is not always satisfactory. For these reasons we developed a fronto-temporoparietal combined indirect bypass procedure for child patients in order to overcome these problems. This multiple combined indirect procedure can cover a wider area of the ischemic brain through the EMAS in the frontal and the EDAS and EMS in the temporo-parietal regions. It is also safe and easy to perform, and one or two of these three procedures form sufficient collaterals with a relatively high reliability. This technique is described and the results are presented.  (+info)

Surgical reconstruction of the extracranial vertebral artery: management and outcome. (3/349)

PURPOSE: The purpose of this study was to identify the risk and outcome of reconstruction of the extracranial vertebral artery (ECVA). METHOD: The study was conducted as a retrospective review of 369 consecutive ECVA reconstructions. RESULTS: The clinical presentations consisted of hemispheric symptoms alone in 4% of the cases, hemispheric and vertebrobasilar symptoms in 30%, and vertebrobasilar symptoms alone in 60%. The cause of the lesion was atherosclerosis (n = 300), extrinsic compression (n = 42), dissection (n = 7), radiation arteritis (n = 5), intimal hyperplasia (n = 3), fibromuscular dysplasia (n = 2), previous surgical ligation (n = 3), aneurysm (n = 2), and other (n = 5). All the patients underwent preoperative arteriography. There were 252 proximal ECVA reconstructions (218 transpositions, 42 bypass grafting procedures, and two other) and 117 distal ECVA reconstructions (85 bypass grafting procedures, 25 transpositions, and seven other). In 83 patients, the ECVA operation was performed concomitant with a carotid or supraaortic trunk reconstruction. This series was analyzed in two separate sets: before 1991 (n = 215), when changes in indications and management were occurring; and after 1991 (n = 154), when we acquired a dedicated anesthesia team and digital arteriography in the operating room and established uniform protocols for the management of ECVA disease. The stroke, death, and stroke/death rates for the period before 1991 were, respectively, 4. 1%, 3.2% and 5.1%. The stroke, death, and stroke/death rates for the period after 1991 were, respectively, 1.9%, 0.6% and 1.9%. The patency rate at 5 years was 80%. The survival rate at 5 years was 70%. Most of the deaths during the follow-up period were caused by cardiac disease. Among the survivors, the protection rate from stroke was 97%. CONCLUSION: The changes in operative selection and management have improved the results of ECVA reconstruction. The data reported for ECVA reconstruction in patients who underwent operation since 1991 reflect the outcome of ECVA reconstruction today. In our experience, a reconstruction of the ECVA is less risky than a carotid reconstruction.  (+info)

Dynamic CT perfusion to assess the effect of carotid revascularization in chronic cerebral ischemia. (4/349)

We present the case of a female patient who was studied with dynamic contrast-enhanced CT perfusion before and after carotid revascularization. Before treatment, there was decreased perfusion in the ipsilateral insula, which was shown to be resolved on the scan obtained 1 day after treatment, indicating the technical success of the revascularization. In the ipsilateral basal ganglia, there was delayed contrast agent clearance from the tissue, which was attributed to vasodilation; after revascularization, there remained a subtle stenotic effect. The observed changes in the dynamic CT perfusion study suggest that this technique may be a useful tool in the evaluation of patients with asymmetrical cerebral blood flow.  (+info)

Cost-effectiveness analysis of therapy for symptomatic carotid occlusion: PET screening before selective extracranial-to-intracranial bypass versus medical treatment. (5/349)

The St. Louis Carotid Occlusion Study (STLCOS) demonstrated that increased cerebral oxygen extraction fraction (OEF) detected by PET scanning predicted stroke in patients with symptomatic carotid occlusion. Consequently, a trial of extracranial-to-intracranial (EC/IC) arterial bypass for these patients was proposed. The purpose of this study was to examine the cost-effectiveness of using PET in identifying candidates for EC/IC bypass. METHODS: A Markov model was created to estimate the cost-effectiveness of PET screening and treating a cohort of 45 symptomatic patients with carotid occlusion. The primary outcome was incremental cost for PET screening and EC/IC bypass (if OEF was elevated) per incremental quality-adjusted life year (QALY) saved. Rates of stroke and death with surgical and medical treatment were obtained from EC/IC Bypass Trial and STLCOS data. Costs were estimated from the literature. Sensitivity analyses were performed for all assumed variables, including the PET OEF threshold used to select patients for surgery. RESULTS: In the base case, PET screening of the cohort followed by EC/IC bypass on 36 of the 45 patients yielded 23.2 additional QALYs at a cost of $20,000 per QALY, compared with medical therapy alone. A more specific PET threshold, which identified 18 surgical candidates, gained 22.6 QALYs at less cost than medical therapy alone. The results were sensitive to the perioperative stroke rate and the stroke risk reduction conferred by EC/IC bypass surgery. CONCLUSION: If postoperative stroke rates are similar to stroke rates observed in the EC/IC Bypass Trial, EC/IC bypass will be cost-effective in patients with symptomatic carotid occlusion who have increased OEF. A clinical trial of medical therapy versus PET followed by EC/IC bypass (if OEF is elevated) is warranted.  (+info)

Frontal lobe infarction due to hemodynamic change after surgical revascularization in moyamoya disease--two case reports. (6/349)

A 60-year-old female and a 40-year-old male underwent surgical revascularization for moyamoya disease and suffered small infarction in the ipsilateral frontal lobe 3 or 4 days postoperatively. Neuroimaging suggested that the bypass flow had caused rapid progression of occlusive changes in the carotid forks, a diminishing of moyamoya vessels, and flow reduction in the anterior cerebral artery ipsilateral to surgery, leading to critical ischemia in the frontal lobe. Surgical revascularization improves the outcome of patients with moyamoya disease, but postoperative management such as hydration is important to avoid ischemic complications due to frontal lobe infarction.  (+info)

Intracerebral hemorrhage from a ruptured pseudoaneurysm after STA-MCA anastomosis--case report. (7/349)

A 43-year-old hypertensive male developed a pseudoaneurysm at the site of a superficial temporal artery (STA)-middle cerebral artery (MCA) anastomosis, causing massive intracerebral hemorrhage 5 years after the operation. He first experienced repeated transient ischemic attacks, and cerebral angiography disclosed complete occlusion in the cervical portion of the left internal carotid artery. STA-MCA anastomosis was performed, and the ischemic attacks stopped. Postoperative angiography confirmed patency of the anastomosis and good filling of the cortical branches of the left MCA. Five years after surgery, the patient suffered sudden onset of generalized convulsions and consciousness disturbance. Computed tomography disclosed a massive intracerebral hemorrhage in the left frontoparietal region, and angiography revealed an aneurysmal dilatation at the site of the anastomosis that was not seen before. Emergency evacuation of the hematoma and clipping of the aneurysmal dilatation were performed. The patient recovered well and became ambulatory. Histological examination of the surgical specimen showed collagen tissue, indicating a pseudoaneurysm. Patients who undergo STA-MCA anastomosis, especially hypertensive patients, should be followed up by repeated magnetic resonance angiography to confirm the patency of the anastomosis and cerebral perfusion, and to detect the formation of pseudoaneurysms at the anastomosis site, which can cause fatal bleeding.  (+info)

Intraoperative sonographic assessment of graft patency during extracranial-intracranial bypass. (8/349)

Extracranial-intracranial (EC-IC) bypass may be necessary to facilitate treatment of unclippable posterior circulation fusiform aneurysms. Although intraoperative digital subtraction angiography (DSA) allows assessment of graft patency, this technique, because of difficulties inherent in performing selective catheterization and angiography in the operating room, has limitations. Duplex sonography, in contrast, is easily performed, and provides information regarding graft patency and blood flow direction during EC-IC bypass procedures. This latter information proved useful in determining the time of parent artery occlusion after two EC-IC bypass procedures performed for treatment of a fusiform midbasilar artery aneurysm.  (+info)

Define extracranial/intracranial bypass. extracranial/intracranial bypass synonyms, extracranial/intracranial bypass pronunciation, extracranial/intracranial bypass translation, English dictionary definition of extracranial/intracranial bypass. also by-pass n. 1. A highway or section of a highway that passes around an obstructed or congested area. 2. A pipe or channel used to conduct gas or liquid...
Cerebral Revascularization: Techniques in Extracranial-to-Intracranial Bypass Surgery Author(s): Saleem I. Abdulrauf MD FAAN FACS Publisher: Saunders Date: 2010
Cerebral revascularization is used to augment or replace cerebral blood flow in patients at risk of developing cerebral ischemia. These include patients with moyamoya disease, occlusive cerebrovascular disease, skull base tumors, and complex aneurysms. Our aim in this review is to provide a comprehensive update of both surgical and anesthetic aspects of cerebral revascularization procedures. The anesthetic concerns for most patients presenting for different types of bypass procedures are similar and include the maintenance of adequate cerebral perfusion to prevent cerebral ischemia. Patients with complex aneurysms and tumors have additional considerations related to the surgical treatment of the underlying pathology.. ...
TY - JOUR. T1 - Computed tomographic angiography in evaluation of superficial temporal to middle cerebral artery bypass. AU - Besachio, David A.. AU - Ziegler, Jordan. AU - Duncan, Timothy D.. AU - Wanebo, John S.. PY - 2010/5/1. Y1 - 2010/5/1. N2 - Catheter-directed digital subtraction angiography (DSA) is considered the standard for evaluation of superficial temporal to middle cerebral artery (STA-MCA) bypass patency. Few clinical investigations have been performed that evaluate the efficacy of computed tomographic angiography (CTA) in the assessment of extracranial-intracranial bypass. Using multi-detector row CTA, STA-MCA bypass patency was assessed in the initial postoperative period and several months afterward and compared with DSA. No significant difference was identified in the evaluation of graft patency between DSA and CTA. Although multiple modalities exist to evaluate STA-MCA bypass graft patency, the multidetector CTA is widely available and allows for rapid, accurate patency ...
TY - JOUR. T1 - Use of extracranial-intracranial bypass in the management of symptomatic vasospasm. AU - Batjer, H.. AU - Samson, D.. PY - 1986. Y1 - 1986. UR - http://www.scopus.com/inward/record.url?scp=0022517563&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0022517563&partnerID=8YFLogxK. M3 - Article. C2 - 3748351. AN - SCOPUS:0022517563. VL - 19. SP - 235. EP - 246. JO - Neurosurgery. JF - Neurosurgery. SN - 0148-396X. IS - 2. ER - ...
TY - JOUR. T1 - Long term evaluation of brain perfusion with magnetic resonance in high flow extracranial-intracranial saphenous graft bypass. AU - Bozzao, Alessandro. AU - Fasoli, Fabrizio. AU - Finocchi, Vanina. AU - Santoro, Giuseppe. AU - Romano, Andrea. AU - Fantozzi, Luigi Maria. PY - 2007/1. Y1 - 2007/1. N2 - Assessment was made of the cerebral vascular haemodynamic parameters in patients with a high-flow extra-intracranial (EC-IC) bypass performed for therapeutic occlusion of the internal carotid artery (ICA). Sixteen patients with ICA occlusion and EC-IC bypass (time interval from surgery 1-6 years) underwent MRI. Perfusion-weighted magnetic resonance imaging (PW-MRI) sequences were performed without the use of an arterial input function. The relative cerebral blood volume (rCBV), mean transit time (MTT) and relative cerebral blood flow (rCBF) were evaluated in all patients at the level of the basal ganglia, centrum semiovale and cortex in both hemispheres. Statistically significant ...
While the use of CTA to assess EC-IC bypass postoperatively has been described [3], we demonstrate how CTA may be used for the preoperative assessment of the STA for potential use in EC-IC bypass. Although use of preoperative CTA for anatomic evaluation of the external carotid anatomy has been described for head and neck surgery [4, 5], to our knowledge, no report has yet been made demonstrating the utility of CTA for preoperative planning for EC-IC bypass. EC-IC bypass has remained one area where invasive catheter angiography has been thought necessary, specifically for evaluation of the STA vessel caliber as a bypass conduit. The patient described in this case illustration did not go on to surgery, therefore, no direct intraoperative comparison could be made between the findings at CTA and at DSA. To prove the utility of CTA for preoperative evaluation of the STA, intraoperative comparison of vessel caliber with DSA findings would be needed. If findings of vessel caliber at operation reliably ...
Всем привет! Ближайшие несколько дней я был недоступен и ничего не делал для сайта. Уж не обессудьте: был занят на
Intracranial Arterial Reconstruction. Microvascular techniques are utilized in order to prevent Strokes from occurring in patients with certain types of Obstructive Cerebrovascular conditions that do not respond to other therapies. Examples of this include extensive multivessel atherosclerosis (hardening of the arteries) that results in decreased blood supply to the Brain. An example of this is Extracranial to Intracranial Arterial Bypass Grafting as illustrated in Figures 5 through 8.. These operations are referred to as Cerebral Revascularization (or Extracranial-Intracranial [EC-IC] Bypass Graft). Patients requiring the reconstruction of the arterial blood supply to their Brain (either to deal with an obstructive blood vessel problem that would lead to Stroke, or where tumor removal requires the sacrifice of a major cerebral artery) will understand the requirement to have a Neurosurgeon with special skills, knowledge and expertise to undertake this extremely delicate task.. Several techniques ...
Endovascular Approaches to Cerebral Ischemia Drs. Aaron Dumont and Max Kole discuss intracranial angioplasty and stent implantation for direct cerebral revascularization.
Zumofen, D; Khan, N; Roth, P; Samma, A; Yonekawa, Y (2008). Bonnet bypass in multiple cerebrovascular occlusive disease. In: Yonekawa, Y; Tsukahara, T; Valavanis, A; Khan, N. Changing Aspects in Stroke Surgery: Aneurysms, Dissections, Moyamoya Angiopathy and EC-IC Bypass. Austria - Wien, 2008: Springer Viena, 103-107.. ...
Ringtones of Dog Barking Club Remix (Sound Effects Gun Fx Soundtrack Siren Dj Hip Hop Radio Movie) by Sound Effects Fx and Soundtrack. Make your own custom ringtones of popular songs! Choose from popular starting times then upload one of your downloaded MP3 files to create any custom ringtone of any song.
Wang MY, Steinberg GK. Rapid and near-complete resolution of moyamoya vessels in a patient with moyamoya disease treated with superficial temporal artery-middle cerebral artery bypass. Pediatr Neurosurg. 1996;24(3):145-150.. Bowen M, Marks MP, Steinberg GK. Neuropsychological recovery from childhood moyamoya disease. Brain Dev.1998;20(2):119-123.. Golby AJ, Marks MP, Thompson RC, Steinberg GK. Direct and combined revascularization in pediatric moyamoya disease. Neurosurgery. 1999;45(1):50-58; discussion 58-60.. Woolfenden AR, Albers GW, Steinberg GK, Hahn JS, Johnston DC, Farrell K. Moyamoya syndrome in children with Alagille syndrome: additional evidence of a vasculopathy. Pediatrics. 1999;103(2):505-508.. Fleetwood I, Steinberg GK. Moyamoya disease. Can J Neurol Sci. 2000;27(4):325-327.. Lim M, Cheshier S, Steinberg GK. New vessel formation in the central nervous system during tumor growth, vascular malformations, and Moyamoya. Curr Neurovasc Res. 2006;3(3):237-245.. Kelly ME, Bell-Stephens ...
Moyamoya syndrome is a rare condition in which blood vessels at the base of the skull progressively narrow, limiting the flow of oxygenated blood to the brain. Surgical treatment options for Moyamoya syndrome include direct revascularization procedures such as an EC-IC bypass as well as indirect revascularization procedures like encephaloduroarteriosynangiosis (EDAS) and pial synangiosis. Here at Columbia University Medical Center/NewYork-Presbyterian Hospital, our neurosurgeons have particular expertise using these and other surgeries to treat patients with Moyamoya syndrome.. Moyamoya means puff of smoke in Japanese, and the condition is so named because the body grows a secondary network of small vessels in an effort to compensate for the restricted blood flow. On an arteriogram, the network of new vessels resembles a cloud-or puff of smoke. Moyamoya is more common in Japan than in the U.S., but it is unusual everywhere.. The blood vessel network that gives Moyamoya its name may lead to ...
TY - JOUR. T1 - Targeted extracranial-intracranial bypass with intra-aneurysmal administration of indocyanine green. T2 - Case report. AU - Bain, Mark D.. AU - Moskowitz, Shaye I.. AU - Rasmussen, Peter A.. AU - Hui, Ferdinand. PY - 2010/12. Y1 - 2010/12. N2 - BACKGROUND AND IMPORTANCE: Early origin of the middle cerebral artery M2 segment is a normal variant. When such a vessel is occluded proximally, the parenchyma distal to the vessel may become ischemic. Targeted extracranial to intracranial bypass to such a specific branch may preserve perfusion to the end organ. We describe the use of intra-aneurysmal injection of indocyanine green to identify a target middle cerebral artery branch (MCA) for bypass, immediately followed by proximal parent vessel sacrifice via endovascular embolization. CLINICAL PRESENTATION: A 45-year-old woman presented to an outside hospital with headaches. Magnetic resonance imaging revealed a giant aneurysm of the right MCA. The aneurysm gave rise to an M2 branch that ...
Introduction: Silent cerebral microbleeds (CMB) are common in Moyamoya Disease (MMD) and Moyamoya syndrome (MMS) in Asia. The incidence was reported to be 30-40%. The presence of CMB was found to be a predictor for subsequent cerebral hemorrhage in MMD. The significance of CMB in MMD/MMS in non-Asian population has not been reported. We try to investigate the prevalence of CMB in MMD/MMS in United States and its predictive value for subsequent cerebral hemorrhage.. Methods: Moyamoya Database was established in our institution after reviewing patients with ICD9 code of Moyamoya Disease or Moyamoya Syndrome or cerebrovascular occlusive disease from 2007 to 2015. Patients in the database were reviewed retrospectively and included in the study if there were MR images (including GRE, SWI or T2* sequences) at diagnosis or during follow up and available for review. Patients with poor image quality were excluded. Patients were noted to have microbleeds if it was found on initial or follow up MRI. ...
A complete occlusion of the internal carotid artery (ICA) is an important cause of cerebrovascular disease. A never-symptomatic ICA occlusion has a relatively benign course, whereas symptomatic occlusion increases future risk of strokes. Ultrasonography, magnetic resonance imaging and contrast angiography are useful diagnostic tests, and functional imaging of the brain (eg, with positron emission tomography) helps to understand haemodynamic factors involved in the pathophysiology of brain ischaemia. Recently, there has been a resurgence of interest in the role of extracranial-intracranial bypass surgery for the treatment of completely occluded ICA. With advances in the measurement of cerebral haemodynamics, it may be possible to identify high-risk patients who could benefit from the bypass surgery ...
Moyamoya syndrome (sometimes referred as Moyamoya disease also) is predominantly a problem observed in kids. It is a rare medical complexity when the walls of carotid arteries
Traditionally, carotid endarterectomy belonged to vascular surgeons in our hospital, but the tendency of conversion from conventional carotid endarterectomy to endovascular PTA and/or stenting seemed to be marked, while microvascular revascularization procedure represented by extracranial intracranial EC-IC bypass remained constant (around 20/year) in various occasion (277 times on 203 cases: atherosclerosis 93, Moyamoya angiopathy (MMA) 47, aneurysm 57 and skull base tumour 6, during the last 13 years], in spite of negative results of EC-IC bypass international cooperative study for stroke prevention in 1985 ...
Expertise, Disease and Conditions: Aneurysmal Subarachnoid Hemorrhage (ASH), Arteriovenous Malformations (AVM), Brain Cancer, Brain Hemorrhage, Brain Tumors, Carotid Artery Stenosis, Cavernous Malformations, Cerebellar Ataxia, Cerebral Aneurysms, Cerebral Revascularization, Cerebrovascular Diseases, Cervical Degenerative Disc Disease, Chiari Malformations, Complex Skull Reconstruction, Cranioplasty, Dural Arteriovenous Fistulas, Intracerebral Hemorrhage, Moyamoya Disease, Neurosurgery, Spinal Vascular ...
BACKGROUND AND PURPOSE: It is unclear whether very old patients benefit from organized inpatient (stroke unit) care. The aim of this work was to compare the clinical outcome of patients with first-ever ischemic stroke aged either ,/=80 or ,80 years who were treated conservatively (without cerebral revascularization) in a university-based stroke unit. PATIENTS AND METHODS: We included 147 (11%) patients ,/=80 years and 1241 (89%) patients, ,80 years. All patients underwent clinical examination, blood tests, electrocardiography (ECG), brain imaging and cerebrovascular ultrasound. Additional investigations were done at the discretion of the treating physician. The modified Rankin scale (mRS) score was used to assess the 3-month outcome (favorable: mRS, 0-1; poor: mRS, 2-6; death of any cause). RESULTS: Stroke severity did not differ between both groups [median National Institutes of Health Stroke Scale (NIHSS) score, 4]. Younger patients underwent magnetic resonance (MR) imaging of the brain, MR ...
Four patients with giant intracranial aneurysms, which measured over 2.5 cm in diameter, were treated by ligation of the proximal parent artery. The location of the aneurysms were intracavernous in two patients, paraophthalmic in one patient, and ver
Computed Tomography Angiography (CTA) plays an essential role in the diagnosis, treatment evaluation, and monitoring of cerebral aneurysms. Segmentation of CTA medical images of giant intracranial aneurysms (GIA) provides quantitative measurements of
A total of 1,377 patients with symptomatic obstructive cerebrovascular disease (most commonly, internal carotid artery occlusion) entered a trial in which they were randomized to either medical or surgical (extracranial-intracranial bypass) therapy. All but 8 had hemoglobin estimations performed at entry. The patients were followed for an average of 55.8 months. In the medical group, the 325 patients with high normal hemoglobin concentration (15 g/l or more) suffered no more ischemic strokes than the 382 patients with lower values (less than 15 g/l). Those strokes that did occur were no more severe in the high than the low hemoglobin group. Hemoglobin concentration did not emerge as a prognostic factor in those patients treated surgically (n = 662). This prospective study counters the hypothesis that high normal hemoglobin concentration is associated with poor outcome in patients with symptomatic obstructive disease of the carotid and cerebral arteries. ...
With only few reports of large artery occlusion due to a fat embolus, the diagnosis can be a challenge, delaying correct diagnosis and management.1 Knowledge of the hallmark hypodense artery sign and the differentiation with an air embolus, which typically has a density less than −1000 HU (vs −30 to −70 HU for fat) is mandatory.. In patients with acute or evolving stroke, outcome is related to timing of reperfusion.7 Unlike thromboembolic arterial occlusion, no guidelines exist for the management of ischaemic stroke secondary to fat emboli. Endovascular thrombectomy is now the standard of care for patients with acute ischaemic stroke secondary to acute large vessel occlusion, and seems the most appropriate first-line treatment for large fat emboli.4 Multiple successful fat emboli retrievals have been reported.4 In our case, endovascular retrieval was unsuccessful, possibly due to the time elapsed between initial onset and the endovascular attempt (24 hours).. As the patient was further ...
The department is one of Germanys largest neurosurgical departments, serving patients from Duisburg and the surrounding area, other regions of Germany as well as many Arab countries, Russia and other countries of the former Soviet Union. The latest operating technologies are used in the department, such as a special mouth-controlled surgical microscope that ensures that both of the surgeons hands are free to perform the operation at all times.. The three operating theatres, fitted with state-of-the-art equipment, are used for microsurgery and endoscopy. As well as common neurosurgical conditions, the department treats a high number of rare illnesses.. Vascular neurosurgery employs modern videoangiography and micro-Doppler sonography to operate on conditions including spinal fistulas, haemangioblastomas, angiomas, complex aneurysms and EC/IC bypasses.. Paediatric neurosurgeons collaborate closely with the paediatrics department to operate in cases such as calvarial deformities and hydrocephalus ...
SUMMARY: Giant intracranial aneurysms are rare vascular pathologies associated with high morbidity and mortality. The purpose of this in vivo study was to assess giant intracranial aneurysms and their wall microstructure by 7T MR imaging, previously only visualized in histopathologic examinations. Seven giant intracranial aneurysms were evaluated, and 2 aneurysms were available for histopathologic examination. Six of 7 (85.7%) showed intraluminal thrombus of various sizes. Aneurysm walls were depicted as hypointense in TOF-MRA and SWI sequences with excellent contrast ratios to adjacent brain parenchyma (range, 0.01-0.60 and 0.58-0.96, respectively). The triple-layered microstructure of the aneurysm walls was visualized in all aneurysms in TOF-MRA and SWI. This could be related to iron deposition in the wall, similar to the findings in 2 available histopathologic specimens. In vivo 7T TOF-MRA and SWI can delineate the aneurysm wall and the triple-layered wall microstructure in giant intracranial ...
The information on this website is not intended for direct diagnostic use or medical decision-making without review by a genetics professional. Individuals should not change their health behavior solely on the basis of information contained on this website. Neither the University of Utah nor the National Institutes of Health independently verfies the submitted information. If you have questions about the information contained on this website, please see a health care professional. ...
A 45-year-old male patient with moyamoya disease is scheduled for a superficial temporal to middle cerebral artery bypass. He has a past medical history of hypertension and stroke with residual left...
Symptoms, treatment, risks, and surgery | Dr. Newell has 25+ years of experience helping with Moyamoya Disease. Moyamoya disease is a progressive disorder of the cerebral vessel.
Dr. Koslow responded: Never, most of time. Total occlusion is rarely treated and if treated it is with temporal artery to middle cerebral artery bypass (done very very rarely). Just follow stenosis of other side.
The described features are those of Moyamoya disease with occluded distal ICAs as well as left MCA causing extensive acute left cerebral infarction. The Ivy sign refers to the leptomeningeal hyper intense FLAIR signal or brighnt sulci due to sl...
Dr. Peter Nakaji in Phoenix, AZ, treats Moyamoya Disease, a rare cerebrovascular disease caused by blocked arteries at the base of the brain.
This report explores the results and effects of the disease, its pathophysiological, biochemical, genetics and scientific analysis of the disease. This also includes the clinical implementations and unanswered questions concerning the moyamoya disease.
The course of MMD spans from clinical silence for several years to rapid progression.5,7 Its severity can be classified into six stages based on Suzukis classification, which highlights the angiographic evolution of the disease (Table 1).8,9 A management plan is decided accordingly.. There is no curative treatment for arterial occlusion regression or Moyamoya vessel prevention. Due to the more progressive nature of the disease in the pediatric population, treatment is geared toward preventing irreversible brain damage.8,12 Treatment is strongly recommended for symptomatic adults since the stroke rate is estimated at 10% to 15% per year compared with 3% in asymptomatic patients.7,9,11,12. The mainstay of treatment in symptomatic patients with ischemic MMD is surgical revascularization.9,12 The goal is to improve cerebral blood flow and prevent infarction. Direct or indirect bypass has been shown to improve blood flow and decrease ischemic events postoperatively.12 Post-op complications may ...
Moyamoya is a disease in which certain arteries in the brain are constricted and blood flow in the brain is blocked by the constriction.
Moyamoya Disease is a progressive disease that affects the blood vessels in the brain (cerebrovascular). It is characterized by narrowing and/or closing of the main artery to the brain (carotid).
A 67-year-old man, who had suffered from right cerebral infarction that resulted in left hemiparesis, underwent right superficial temporal artery-middle cerebral artery anastomosis in 1991. From March 2000, dizziness occurred during use of his right hand. His arteriogram revealed late filling of the occluded right subclavian artery by reversed flow from the right vertebral artery and 50% stenosis of the left internal carotid artery. We performed subcutaneous axillo-axillary bypass grafting with mild hypothermia on June 1st, 2000. An 8mm ePTFE tube with a ring was anastomosed to both axillary arteries in end-to-side fashion with continuous sutures. Thereafter, symptoms disappeared. One month after the procedure, his arteriogram showed that the bypass filled the right vertebral artery in an antegrade fashion as well as the right axillary artery. Axillo-axillary bypass grafting with mild hypothermia seemed to be safe and effective for high-risk subclavian steal syndrome ...
TY - JOUR. T1 - Surgical Treatment for Patients with Moyamoya Syndrome and Type 1 Neurofibromatosis. AU - Porras,Jose L.. AU - Yang,Wuyang. AU - Garzon-Muvdi,Tomas. AU - Xu,Risheng. AU - Blakeley,Jaishri. AU - Belzberg,Allan. AU - Caplan,Justin M.. AU - Khalid,Syed. AU - Colby,Geoffrey P.. AU - Coon,Alexander L.. AU - Tamargo,Rafael J.. AU - Ahn,Edward S.. AU - Huang,Judy. PY - 2017/3/1. Y1 - 2017/3/1. N2 - Introduction The current study describes the impact of surgery in preventing follow-up ipsilateral transient ischemic attacks (TIAs)/strokes in an East Coast North American cohort of patients with both moyamoya syndrome (MMS) and neurofibromatosis type 1 (NF1) (MMS-NF1). Methods We retrospectively reviewed records of patients with MMS and NF1 at the Johns Hopkins Medical Institutions from 1990-2014. Baseline characteristics and follow-up results including subsequent ipsilateral strokes were collected and compared between a revascularization group (group 1) and a conservatively managed group ...
Looking for online definition of Arterial Revascularization Therapy Study-CK-MB in the Medical Dictionary? Arterial Revascularization Therapy Study-CK-MB explanation free. What is Arterial Revascularization Therapy Study-CK-MB? Meaning of Arterial Revascularization Therapy Study-CK-MB medical term. What does Arterial Revascularization Therapy Study-CK-MB mean?
Looking for online definition of Arterial Revascularization Therapy Study in the Medical Dictionary? Arterial Revascularization Therapy Study explanation free. What is Arterial Revascularization Therapy Study? Meaning of Arterial Revascularization Therapy Study medical term. What does Arterial Revascularization Therapy Study mean?
TY - JOUR. T1 - Velocity-coded colour magnetic resonance angiography and perfusion-weighted magnetic resonance imaging for the evaluation of extracranial-to-intracranial arterial bypass surgery. AU - Miyazawa, Nobuhiko. AU - Aoki, Shigeki. AU - Toyama, Keiji. AU - Arbab, Ali Syed. AU - Hori, Masaaki. AU - Umeda, Takako. AU - Araki, Tsutomu. AU - Nukui, Hideaki. PY - 2002/12/1. Y1 - 2002/12/1. N2 - Background and purpose: Velocity-coded colour magnetic resonance angiography (VCCMRA) and perfusion magnetic resonance imaging (pMRI) were evaluated as methods for investigating the efficacy of extracranial-to-intracranial arterial bypass (EC-IC bypass) by comparing the findings of VCCMRA and those of cerebral angiography and by measuring the improvement ratio after EC-IC bypass by pMRI compared to that by single photon emission computed tomography (SPECT) using the autoradiographic technique. Methods: Thirteen patients who underwent VCCMRA, angiography, SPECT, and pMRI before and after surgery were ...
Preoperative symptoms included headache in 3 patients, transient ischemic attack in 10, cerebral infarction in 3, and intracranial hemorrhage in 4 patients. Intervals between the initial bypass surgery and repeat bypass surgery were 0.3-30 years (median 3 years). In group A, superficial temporal artery to middle cerebral artery (MCA) anastomosis and indirect bypass were performed on 7 hemispheres. Only indirect bypass was performed on 3 hemispheres because of the lack of suitable donor or recipient arteries. In group B, occipital artery (OA) to PCA anastomosis and indirect bypass were conducted on 4 hemispheres, and OA-MCA anastomosis and indirect bypass on 1 hemisphere. Only indirect bypass was conducted on 7 hemispheres because of the lack of suitable recipient arteries. All 22 repeat bypass surgeries were successfully conducted. During follow-up periods (median 4 years), none of the patients suffered repeat stroke except 1 patient who died of recurrent intracerebral hemorrhage 3 years after ...
TY - JOUR. T1 - Understanding and treating moyamoya disease in children. AU - Jodi, L. Smith. PY - 2009/10/13. Y1 - 2009/10/13. N2 - Moyamoya disease, a known cause of pediatric stroke, is an unremitting cerebrovascular occlusive disorder of unknown etiology that can lead to devastating, permanent neurological disability if left untreated. It is characterized by progressive stenosis of the intracranial internal carotid arteries and their distal branches and the nearly simultaneous appearance of basal arterial collateral vessels that vascularize hypoperfused brain distal to the occluded vessels. Moyamoya disease may be idiopathic or may occur in association with other syndromes. Most children with moyamoya disease present with recurrent transient ischemic attacks or strokes. Although there is no definitive medical treatment, numerous direct and indirect revascularization procedures have been used to improve the compromised cerebral circulation, with outcomes varying according to procedure type. ...
Patent STA-MCA bypass. Intraoperative photo of STA-MCA bypass. Solid arrow denotes anastomosis and dotted arrow denotes STA. A : anterior, P : posterior, I : inferior, S : superior (upper). ICG videoangiography demonstrates patency. Arrow denotes anastomosis. STA : superficial temporal artery, MCA : middle cerebral artery, ICG : indocyanine green (lower ...
This is the first case report of a CADASIL patient with MCA stenosis who underwent STA-MCA bypass to increase cerebral perfusion in the localized ischemic area. In CADASIL, reductions in both CBF and CVR occur in white matter showing T2-hyperintensity. It has been suggested that the degeneration of vascular smooth muscle cells causes arteriopathy, which leads to cerebral hypoperfusion and impaired autoregulation (Chabriat et al. 2000; Huang et al. 2010; Singhal and Markus 2005; van den Boom et al. 2003). Interestingly, the white-matter hyperintensity in the temporal lobe was found predominant in the left side in this case. This asymmetry of white-matter hyperintensity is very unusual rare in CADASIL, since it would suggest that these lesions do not originate from ischemia, but edema instead. The lower extent observed in the most hypoperfused temporal lobe further support that these lesions are not related to ischemia but mat actually result from edema with blood brain barrier dysfunction. ...
Moyamoya disease: Find the most comprehensive real-world symptom and treatment data on moyamoya disease at PatientsLikeMe. 24 patients with moyamoya disease experience fatigue, depressed mood, pain, anxious mood, and insomnia and use Aspirin and MRI (magnetic resonance imaging) to treat their moyamoya disease and its symptoms.
Direct revascularization. A surgical procedure in which a branch of a scalp artery is connected to a branch of the brain artery on the outer surface of the brain, providing immediate improvement in blood supply to the brain.. Indirect revascularization. Various indirect surgical methods to provide more blood flow to the brain include EDAS, EMS and Omental-Cerebral Transposition. Encephalo-duro-arterio-synangiosis (EDAS). A procedure that uses a branch of temporal artery, which is laid directly on the surface of the brain without making a direct connection, to form a new blood supply ...
Moyamoya disease diagnostics (costs for program #260949) ✔ Academic Hospital Bogenhausen ✔ Department of Neurology, Neurophysiology, Neuropsychology and Stroke Unit ✔ BookingHealth.com
Moyamoya disease is a rare, progressive cerebrovascular disorder caused by shrinking of major brain blood vessels resulting in decreased blood flow to...
Treatment of moyamoya disease with a shunt overlay with interponate (costs for program #75509) ✔ University Hospital Frankfurt ✔ Department of Neurosurgery ✔ BookingHealth.com
Amiable bacteria monsters will accompany you while you play the classic game of solitaire. The rules of play are identical to standard solitaire where you are required to fill up the four slots at the top right hand corner of the screen with cards.
first reported the use of EIAB for maintaining flow in an electively ligated MCA in the management of an aneurysm. 18 Several reports have followed, further supporting this rationale. 6, 14, 15 Ferguson, et al. , 2 reported good results with the use of EIAB in giant intracranial aneurysms. Aneurysms greater than 2.5 cm in diameter are by convention classified as giant aneurysms. In a recent report of direct surgery on 24 patients, 12 the mortality rate was 20.8%, and the overall morbidity (including deaths) was 37.5%. Eight of these patients had aneurysms of. ...
Solitaire™ FR Revascularization Device is a mechanical thrombectomy device combining the ability to restore blood flow, administer medical therapy, and retrieve clot in patients experiencing acute ischemic stroke.
Linfante, Italo, How Do I Decide Between Coiling and Flow Diversion for Intracranial Aneurysms? (2016). All Publications. 1263 ...
Skull crossbones Etsy - 2015-07-29В В· Be sure to review PART 2 - Frequently Asked Questions: Windows 10 Solitaire, Minesweeper, and In reply to Mike_884s post on January 27,
Alcohol units tell you how strong a drink is. In Northern Ireland, one unit is 10ml or eight grammes of pure alcohol. There are health risks to regular drinking and drinking too much. If you drink alcohol, check the medical guidelines about limiting the units you drink each week.
CTA uses radiation and may not pick up on vessels for revascularization that are distal to the occlusion, but it is much ... Mesenteric ischemia Cerebral ischemia Cardiac ischemia In order to treat acute limb ischaemia there are a series of things that ... MRA are used most often because the duplex ultrasonography although non-invasive is not precise in planning revascularization. ...
This variant was associated with an increase in platelet activation responses in vitro and an increase in incidence of cerebral ... as an adjunct to revascularization or as an alternative to major amputation in cases which cannot undergo revascularization.[22 ...
Exercise can improve symptoms, as can revascularization.[4] Both together may be better than one intervention of its own.[4] ...
... and cerebral meninges (01.2) Craniotomy and craniectomy (01.3) Incision of brain and cerebral meninges (01.32) Lobotomy and ... Heart revascularization by arterial implant (36.3) Other heart revascularization (36.9) Other operations on vessels of heart ( ... and cerebral meninges (02.2) Ventriculostomy (03) Operations on spinal cord and spinal canal structures (03.0) Exploration and ...
... is a medical technique for visualizing the interior of blood vessels. In this technique, a flexible fiberoptic catheter inserted directly into an artery.[1] It can be helpful in diagnosing e.g. arterial embolism.[1] Angioscopy is also used as an adjunctive procedure during vascular bypass to visualize valves within venous conduits. The instrument used to perform angioscopy is called as angioscope. Coronary artery angioscopy, which first was used to reveal the presence of a blood clot in the coronary arteries of patients with unstable angina and myocardial infarction,[2] is now widely used in catherization laboratories to visualize stents. ...
Cerebral angiography. *Pneumoencephalography. *Echoencephalography/Transcranial Doppler. *Magnetic resonance imaging of the ...
... is a palliative surgical procedure performed for patients with Tricuspid atresia. It is also part of the surgical treatment path for hypoplastic left heart syndrome. [1][2][3] This procedure has been largely replaced by Bidirectional Glenn procedure. It connects the superior vena cava to the right pulmonary artery.[4] ...
The patient must be placed supine, without the head or any extremities dangling over the edge of the table. Measurement of ankle blood pressures in a seated position will grossly overestimate the ABI (by approximately 0.3). A Doppler ultrasound blood flow detector, commonly called Doppler wand or Doppler probe, and a sphygmomanometer (blood pressure cuff) are usually needed. The blood pressure cuff is inflated proximal to the artery in question. Measured by the Doppler wand, the inflation continues until the pulse in the artery ceases. The blood pressure cuff is then slowly deflated. When the artery's pulse is re-detected through the Doppler probe the pressure in the cuff at that moment indicates the systolic pressure of that artery. The higher systolic reading of the left and right arm brachial artery is generally used in the assessment. The pressures in each foot's posterior tibial artery and dorsalis pedis artery are measured with the higher of the two values used as the ABI for that leg.[2] ...
While most IVC filters are made of non-ferromagnetic materials, there are a few types that are weakly ferromagnetic. Accordingly, IVC filters fall under the MRI Safe and MRI Conditional categories depending mostly on type of material used during construction. Rarely will one find an MRI Not Safe IVC filter, as most of the steel, and other ferromagnetic material devices have been discontinued via the FDA. IVC filters are attached to the vena cava via hooks on their ends. Some are compression springs, which compress outward onto the side wall of the vena cava; however, they still have small hooks that retain their location. These hooks aid in the anchoring and healing process, as they allow the tissues to 'ingrow' around them, securing the IVC in place. It is unlikely, then, after 4 to 6 weeks of healing, that an MRI of 1.5 tesla, up to 3 tesla, will cause any level of dislodging to occur to the IVC filter. Studies of MR examination of both animals and humans, with implanted IVC filters, have not ...
The original procedure was named for Alfred Blalock, surgeon, Baltimore (1899-1964), Helen B. Taussig, cardiologist, Baltimore/Boston (1898-1986) and Vivien Thomas (1910-1985) who was at that time Blalock's laboratory technician. They all helped to develop the procedure. Taussig, who treated hundreds of infants and children with this disorder, had observed that children with a cyanotic heart defect and a patent ductus arteriosus (PDA) lived longer than those without the PDA. It therefore seemed to her that a shunt which mimicked the function of a PDA might relieve the tetralogy patients' poor oxygenation. In 1943, having broached the possibility of a surgical solution to Robert Gross of Boston without success, Taussig approached Blalock and Thomas in their Hopkins laboratory in 1943. According to the account of the original consultation between the three provided in Vivien Thomas' 1985 autobiography Partners of the Heart, Taussig carefully described the anomaly of Tetralogy of Fallot, but made ...
After angioplasty, most patients are monitored overnight in the hospital, but if there are no complications, patients are sent home the following day. The catheter site is checked for bleeding and swelling and the heart rate and blood pressure is monitored. Usually, patients receive medication that will relax them to protect the arteries against spasms. Patients are typically able to walk within two to six hours following the procedure and return to their normal routine by the following week.[4] Angioplasty recovery consists of avoiding physical activity for several days after the procedure. Patients are advised to avoid any type of lifting, or other strenuous physical activity for a week.[5] Patients will need to avoid physical stress or prolonged sport activities for a maximum of two weeks after a delicate balloon angioplasty.[6] After the initial two week recovery phase, most angioplasty patients can begin to safely return to low-level exercise. A graduated exercise program is recommended ...
... , or impedance plethysmography (IPG), is a non-invasive medical test that measures small changes in electrical resistance of the chest, calf or other regions of the body. These measurements reflect blood volume changes, and can indirectly indicate the presence or absence of venous thrombosis. This procedure provides an alternative to venography, which is invasive and requires a great deal of skill to execute adequately and interpret accurately. For the chest, the technique was developed by NASA to measure the split second impedance changes within the chest, as the heart beats, to calculate both cardiac output and lung water content. This technique has progressed clinically (often now called BioZ, i.e. biologic impedance, as promoted by the leading manufacturer in the US) and allows low cost, non-invasive estimations of cardiac output and total peripheral resistance, using only 4 skin electrodes, oscillometric blood pressure measurement and lung water volumes with minimal ...
Surgical revascularization. Stroke and Transient ischemic attack. Carotid endarterectomy. Thoracic aortic aneurysm. Hybrid arch ...
Diminishing cerebral blood flow, cerebral metabolic oxygen consumption, and intracranial pressure are also characteristics of ... Bailey, J; Mora, C; Shafer, S (1996). "Pharmacokinetics of propofol in adult patients undergoing coronary revascularization". ...
Secondary prevention of myocardial infarction, stroke, unstable angina,[19][20] and revascularization in people with ... Furie KL (July 2012). "High-dose statins should only be used in atherosclerotic strokes". Stroke: A Journal of Cerebral ... Primary prevention of heart attack, stroke, and need for revascularization procedures in patients who have risk factors such as ...
Flash pulmonary edema: association with hypertension and recurrence despite coronary revascularization. Am Heart J. 2000 Sep; ... treatment by angioplasty or surgical revascularisation. Lancet. 1988;332(8610):551-2. doi:10.1016/S0140-6736(88)92668-2. PMID ...
"2014 ESC/EACTS Guidelines on myocardial revascularization: the Task Force on Myocardial Revascularization of the European ...
Surgical revascularisation remains the treatment of choice for mesenteric ischaemia related to an occlusion of the vessels ... and a second-look operation is planned to assess segments that are borderline that may be savable after revascularization.[28] ...
Hypertension can increase the risk of cerebral, cardiac, and renal events.[30] ... "Coronary artery bypass graft surgery vs percutaneous interventions in coronary revascularization: a systematic review". JAMA. ...
Effect of obesity on short- and long-term mortality postcoronary revascularization: A meta-analysis". Obesity (Silver Spring). ... accident vascular cerebral[4]. *meralgie parestezică[47]. *migrene[48]. *sindromul tunelului carpian[49] ...
... : Techniques in Extracranial-to-Intracranial Bypass Surgery Author(s): Saleem I. Abdulrauf MD FAAN ... Cerebral Revascularization. MEDICAL LITERATURES AND UNIVERSITY PASSWORDS. :: Medical E-books Departments :: Neurology & ... Cerebral Revascularization: Techniques in Extracranial-to-Intracranial Bypass Surgery. Author(s): Saleem I. Abdulrauf MD FAAN ... Re: Cerebral Revascularization. by [email protected] on 27/12/2016, 8:34 pm ...
The European Workshops on Basic Techniques of Microsurgery and Cerebral Revascularization, AKH, Vienna, Austria Neurosurgery ... The European Workshops on Basic Techniques of Microsurgery and Cerebral Revascularization , которое выглядело приблизительно ...
Cerebral revascularization is used to augment or replace cerebral blood flow in patients at risk of developing cerebral ... aim in this review is to provide a comprehensive update of both surgical and anesthetic aspects of cerebral revascularization ... different types of bypass procedures are similar and include the maintenance of adequate cerebral perfusion to prevent cerebral ...
Cerebral Revascularization Cerebral Angiography Transient Ischemic Attack Subarachnoid Hemorrhage Brain Ischemia ASJC Scopus ...
These operations are referred to as Cerebral Revascularization (or Extracranial-Intracranial [EC-IC] Bypass Graft). Patients ... "Microsurgical Cerebral Revascularization: Concepts and Practice. Surgical Neurology 1:355-359, 1973. (Lazar, M.L., and Clark, W ... The tumor involves both Frontal Lobes of the Brain and both Orbits as well as major vessels such as both Anterior Cerebral and ... In these conditions, cerebral arteries and/or their branches impinge upon one or more of the specialized Cranial Nerves that ...
Aaron Dumont and Max Kole discuss intracranial angioplasty and stent implantation for direct cerebral revascularization. ... Aaron Dumont and Max Kole discuss intracranial angioplasty and stent implantation for direct cerebral revascularization. ... March 2009: Endovascular Approaches to Cerebral Ischemia. July 16, 2009 - Neurosurgical Focus Endovascular Approaches to ...
... for cerebral revascularization is an important technique for a variety of complex cerebrovascular lesions. Invasive catheter ... A CT angiogram of the Circle of Willis revealed an unruptured fusiform aneurysm of the M1 segment of the right middle cerebral ... CTA of the Circle of Willis revealed an unruptured fusiform aneurysm of the M1 segment of the right middle cerebral artery (MCA ... Conventional catheter angiography may be necessary in the evaluation of chronic ischemic disease to assess the distal cerebral ...
encoded search term (Cerebral Revascularization Imaging) and Cerebral Revascularization Imaging What to Read Next on Medscape. ... Cerebral arterial calcification is an imaging prognostic marker for revascularization treatment of acute middle cerebral ... Cerebral Revascularization Imaging Updated: Aug 24, 2016 * Author: Jeffrey P Kochan, MD; Chief Editor: James G Smirniotopoulos ... Cerebral perfusion, as related to perfusion MRI (Graph A) and CT perfusion imaging (Graph B). Graph A shows the effect of a ...
Cerebral revascularization was pioneered half a century ago. Gradual improvements in microsurgical instrumentation and training ... Cerebral bypass Cerebral ischemia Revascularization Flow augmentation Flow replacement Vertebrobasilar insufficiency ... However, there is still a select group of patients with chronic cerebral ischemia, for whom open cerebral revascularization ... Cerebral revascularization: direct versus indirect bypass. Case presentation and review. Rom Neurosurg. 2014;21:459-69. https ...
Wolfe SQTummala RPMorcos JJ: Cerebral revascularization in skull base tumors. Skull Base 15:71-822005 ... Wolfe SQTummala RPMorcos JJ: Cerebral revascularization in skull base tumors. Skull Base 15:71-822005 ... Sekhar LNNatarajan SKEllenbogen RGGhodke B: Cerebral revascularization for ischemia, aneurysms, and cranial base tumors. ... Sekhar LNNatarajan SKEllenbogen RGGhodke B: Cerebral revascularization for ischemia, aneurysms, and cranial base tumors. ...
Ashley WW, Amin-Hanjani S, Alaraj A, Flow-assisted surgical cerebral revascularization. Neurosurg Focus. 2008;24(2):E20. ... Kawashima M, Rhoton AL Jr, Tanriover N, Microsurgical anatomy of cerebral revascularization. Part I: anterior circulation. J ... Cerebral revascularization using cadaveric vein grafts. Surg Neurol. 2009;72(4):362-368. ... Cerebral revascularization using cadaveric vein grafts. . Surg Neurol. . 2009. ;. 72. (. 4. ):. 362. -. 368. .. ), false ...
Abstract TP123: Efficacy of Staged Angioplasty to Prevent Cerebral Hyperperfusion Syndrome After Endovascular Revascularization ... Abstract TP123: Efficacy of Staged Angioplasty to Prevent Cerebral Hyperperfusion Syndrome After Endovascular Revascularization ... Abstract TP123: Efficacy of Staged Angioplasty to Prevent Cerebral Hyperperfusion Syndrome After Endovascular Revascularization ... Abstract TP123: Efficacy of Staged Angioplasty to Prevent Cerebral Hyperperfusion Syndrome After Endovascular Revascularization ...
... whether revascularisation improves total cerebral blood flow volume (TCBF), and how cerebral veins would respond to altered ... Haemodynamic alterations in cerebral blood vessels after carotid artery revascularisation: quantitative analysis using 2D phase ... Assessing the effect of unilateral cerebral revascularisation on the vascular reactivity of the non-intervened hemisphere: a ... Home » Assessing the effect of unilateral cerebral revascularisation on the vascular reactivity of the non-intervened ...
... giant or complex cerebral aneurysms, chronic ischemic disease and other rare conditions. ... The USC Cerebral Revascularization Center at Keck Medicine of USC specializes in the use of bypass strategies to treat complex ... Cerebral Revascularization Centermjmedina2020-07-02T16:06:21+00:00 Cerebral Revascularization Center. The USC Cerebral ... These bypasses maintain blood flow to healthy tissue that can be used for direct and indirect revascularization. We also have ...
Cerebral revascularization offers an important adjunct to parent-vessel ligation in the treatment of large and otherwise ... internal carotid artery will improve and be cured in the majority of patients treated with universal revascularization approach ... The role of cerebral revascularization in patients with intracranial aneurysms.. *. Saman P Javedan, Vaibhav Deshmukh, Robert F ... Cerebral revascularization offers an important adjunct to parent-vessel ligation in the treatment of large and otherwise ...
... incidence of major adverse coronary and cerebral events (2.86, 1.62 to 5.08), and need for repeat revascularisation (4.63, 2.52 ... Need for repeat revascularisation at maximum follow-up. Eight groups reported the need for repeat revascularisation ( ... incidence of the composite outcome of major adverse coronary and cerebral events, and need for repeat revascularisation. A ... and major adverse coronary and cerebral events (a commonly reported composite outcome in cardiac revascularisation trials ...
... complication following revascularization. Hyperperfusion is defined as a major increase in ipsilateral cerebral blood flow (CBF ... Cerebral hyperperfusion, or reperfusion syndrome, is a rare, but serious, ... Cerebral hyperperfusion, or reperfusion syndrome, is a rare, but serious, complication following revascularization. ... Symptoms of Cerebral Reperfusion Syndrome. Cerebral reperfusion syndrome presents as a triad of ipsilateral headache, ...
Cerebral Ischemia. Cerebrovascular Disorders. EmboTrap® Revascularization Device. EmboTrap. Ischemia. Ischemic. Ischemic Stroke ... The EmboTrap® Revascularization Device is the investigational device. Device: EmboTrap® Revascularization Device Other Name: ... Analysis of Revascularisation in Ischemic Stroke With EmboTrap (ARISE). The safety and scientific validity of this study is the ... Time to Revascularization [ Time Frame: Day 1 ]. Defined as time from groin puncture to visualization of final angiographic ...
Asymptomatic cerebral hemorrhage [ Time Frame: 1 year ]. Asymptomatic cerebral hemorrhage, defined as parenchymal or ... Surgical Indirect Revascularization For Symptomatic Intracranial Arterial Stenosis (ERSIAS). The safety and scientific validity ... Surgical Indirect Revascularization For Symptomatic Intracranial Arterial Stenosis. Official Title ICMJE EDAS (Surgical) ... Symptomatic cerebral hemorrhage is defined as parenchymal, subarachnoid or intraventricular bleeding detected in any imaging ...
Revascularization, neuroprotection, cerebral ischemia. As described in the section above on vessel anastomosis, Ren et al.s ... Cervical laminectomy was performed at the level of the fourth through sixth cerebral vertebrae. Due to the subsequent spinal ... Thus, while Ren et al.s cross circulation and moderate hypothermia protocol has proven effective in avoiding cerebral ischemia ... Human head transplantation would require period of cerebral ischemia greater than that in mice experiments due to technical ...
Cerebral Revascularization. * Front Matter Pages 71-71 PDF. * Cerebral Bypass Surgery: Level of Evidence and Grade of ... Clipping of Recurrent Cerebral Aneurysms After Coil Embolization Shingo Toyota, Tetsuya Kumagai, Tetsu Goto, Kanji Mori, Takuyu ... Stroke Diagnosis Stroke Management Stroke Surgery Cerebral Blood Flow Intracranial Aneurysms Arteriovenous Malformations ... Role of Indocyanine Green Videoangiography in Identification of Donor and Recipient Arteries in Cerebral Bypass Surgery ...
We have performed surgical treatment for Moyamoya disease using the superficial temporal artery to middle cerebral artery (STA- ... Cerebral Angiography. Cerebral Revascularization*. Child. Child, Preschool. Hematoma, Subdural / etiology. Humans. Moyamoya ... STA-MCA anastomosis to the frontal branch of the middle cerebral artery is indispensable for improving cerebral circulation of ... Dissection of the STA, which is the most powerful resource of direct revascularization, should be carefully carried out using a ...
The effects of direct and indirect revascularization for moyamoya disease were analyzed for each donor artery to determine ... Cerebral Revascularization / methods*. Child. Follow-Up Studies. Humans. Moyamoya Disease / radiography, surgery*. ... and direct revascularization via the superficial temporal artery and the middle cerebral artery (STA-MCA) bypass. Among those ... In indirect revascularization surgery for moyamoya disease, the temporal muscle (the deep temporal artery) and the dura mater ( ...
Carotid Occlusion With Middle Cerebral Artery Thrombus. By Moderators: Adnan H. Siddiqui, MD, PhD; and Kunal Vakharia, MD;. ... TCAR (Transcarotid Artery Revascularization): The Next Step in the Evolution of Carotid Revascularization. ... Transcarotid artery revascularization (TCAR) was first introduced in the United States in 2012. TCAR is a surgically inspired ... The Shifting Paradigm in Carotid Revascularization: TCAR in Real-World Practice. By Marc Schermerhorn, MD; and Patric Liang, MD ...
Cerebral Revascularization Product Type: Book. Edition: 1. First Published: 2010. eBook: 978-1-4377-3639-7 ...
... cerebral stroke in 0.2%; perioperative infarction in 0.8%; and the intra-aortic balloon was required in 0.4% of the cases. ... Results of myocardial revascularization: A 12-years experience. Circulation 1982; 65 (Suppl II): II 37-II 43. [ Links ]. 28. ... RESULTS: Myocardial revascularization without extracorporeal circulation was performed in 112 patients. Three were converted to ... CONCLUSION: Myocardial revascularization without extracorporeal circulation is a reproducible technique that is an alternative ...
Color Atlas of Cerebral Revascularization Anatomy, Techniques, Clinical Cases. EUR [D] 209,99 In den Warenkorb In den Warenkorb ...
Color Atlas of Cerebral Revascularization Anatomy, Techniques, Clinical Cases. EUR [D] 209,99 In den Warenkorb In den Warenkorb ...
Microsurgical Anatomy of the Middle Cerebral Artery. Neurology India.June 2005. Vol 53. Issue 2. Keshelava G. et, al. Surgical ... Solitaire Platinum Revascularization Device. View the features and simulated use of the Solitaire Platinum revascularization ... Solitaire Revascularization Device Instructions for Use. This technical manual includes indications, warnings, precautions, ... The Solitaire™ Platinum Revascularization Device is indicated for use to restore blood flow in the neurovasculature by removing ...
Microsurgical Anatomy of the Middle Cerebral Artery. Neurology India. June 2005. Vol 53. Issue 2. Keshelava G. et, al. Surgical ... Solitaire Platinum Revascularization Device View the features and simulated use of the Solitaire Platinum revascularization ... The Solitaire™ Revascularization Device is indicated for use to restore blood flow in the neurovasculature by removing thrombus ... The Solitaire™ Revascularization Device is indicated to restore blood flow by removing thrombus from a large intracranial ...
Similar to revascularization for extracranial carotid artery stenosis (49), patient benefit from revascularization for ... lead to an increasing number of reports on revascularization of cerebral blood vessels for intracranial atherosclerosis. In a ... Effect of chronic middle cerebral artery stenosis on the local cerebral hemodynamics. Stroke 1985;16:214-219. ... Wityk RJ, Lehman D, Klag M, Coresh J, Ahn H, Litt B. Race and sex differences in the distribution of cerebral atherosclerosis. ...
In cases of cerebral infarction, it was once thought reasonable to remove the stenotic or occluded vessel in the acute stage ... The role of new cerebral protective drugs "Sendai cocktail" and perfluorochemicals. Cerebral revascularization for Stroke. ... Diaz FG, Ausman JI, Metha B et al (1985) Acute cerebral revascularization. J Neurosurg 63: 200-209PubMedCrossRefGoogle Scholar ... Cerebral revascularization for stroke. Thieme-Stratton, New York, pp 555-563Google Scholar ...
Transcranial Doppler Monitoring in Patients Undergoing Carotid Artery Revascularization - Observations on Cerebral Embolization ... This study evaluates the results of TCD monitoring during transcarotid artery revascularization with flow reversal (TCAR), ... Patients, who underwent carotid artery revascularization with TCD monitoring were included. Patient demographics and medical ... and middle cerebral artery (MCA) flow changes were registered. HITS during contrast injections were not involved into the ...
The unrealized gain of cerebral revascularization.. Russin JJ, Dehdashti AR, Vajkoczy P, Kuroda S, Mao Y. ... Persistent Primitive Olfactory Artery as Novel Collateral Channel to the Anterior Cerebral Artery in Moyamoya Disease. ...
Book Title: Cerebral Revascularization. Author List: Walter, K.A.; Brem, H.. Edited By: Bernstein, E.P.; Callow, A.D.; ...
  • While catheter angiography has traditionally been used to assess the caliber and course of the superficial temporal artery prior to its use as a conduit for external carotid artery to internal carotid artery (EC-IC) bypass, computed tomographic angiography (CTA) has become increasingly used in the diagnostic assessment of cerebral vasculature. (biomedcentral.com)
  • External carotid artery to internal carotid artery (EC-IC) bypass using the superficial temporal artery (STA) for cerebral revascularization is an important technique for a variety of complex cerebrovascular lesions. (biomedcentral.com)
  • CTA of the Circle of Willis revealed an unruptured fusiform aneurysm of the M1 segment of the right middle cerebral artery (MCA). (biomedcentral.com)
  • Conventional catheter angiography may be necessary in the evaluation of chronic ischemic disease to assess the distal cerebral vasculature and identify potential recipient vessels for bypass. (biomedcentral.com)
  • Drs. Aaron Dumont and Max Kole discuss intracranial angioplasty and stent implantation for direct cerebral revascularization. (jnsonline.org)
  • Reperfusion syndrome can occur as a complication of carotid endarterectomy (CEA), intracranial stenting, and even bland cerebral infarction. (medscape.com)
  • Revascularisation as measured by modified Thrombolysis in Cerebrovascular Infarction (mTICI with 2c) score of at least 2b following the use of the Neuravi device. (clinicaltrials.gov)
  • In cases of cerebral infarction, it was once thought reasonable to remove the stenotic or occluded vessel in the acute stage following onset and to artificially construct collateral vessels-thereby allowing the recirculation of blocked blood flow. (springer.com)
  • Unfavorable results were due to the fact that, in the acute stage of cerebral infarction when vascular reconstruction permitted the flow of blood to a focus where already irreversible changes had occurred, a worsening of the cerebral edema, the occurrence of hemorrhagic infarction and further deterioration of histological damage were brought about. (springer.com)
  • Baker RN, Broward JA, Fang HC et al (1962) Anticoagulant therapy in cerebral infarction. (springer.com)
  • Irino T, Watanabe M, Nishide M et al (1983) Angiographical analysis of acute cerebral infarction followed by "cascade"- like deterioration of minor neurological deficits. (springer.com)
  • Five patients had complications, including 2 cases of acute cerebral infarction, 1 case of epidural hematoma, and 1 case of transient speech disturbance, and 1 patient died. (medscimonit.com)
  • The primary efficacy endpoint, assessed by an unmasked core laboratory, was thrombolysis in cerebral infarction (TICI) scores of 2 or greater reperfusion with the assigned device alone. (acc.org)
  • Cilostazol Stroke Prevention Study : A Placebo-Controlled Double-Blind Trial for Secondary Prevention of Cerebral Infarction. (strokecenter.org)
  • The Relationship Between Colloid Transfusion During Surgical Decompression Hemicraniectomy Period and Postoperative Pneumonia or Long-Term Outcome After Space-Occupying Cerebral Infarction: A Retrospective Study. (amedeo.com)
  • We aimed to clarify whether or not it relates to early cerebral infarction after revascularization. (springermedizin.de)
  • OBJECTIVE To investigate whether increased BMI was associated with delayed cerebral ischemia (DCI) and subsequent infarction after aneurysmal subarachnoid hemorrhage (aSAH). (deepdyve.com)
  • As the incidence of cerebral infarction was determined by review of postoperative computed tomographic (CT) images, patients who were not evaluated with postoperative CT imaging were excluded from analysis (n = 9), leaving a total of 161 patients. (deepdyve.com)
  • Outcomes of Interest The primary outcomes of interest were the incidence of DCI and delayed cerebral infarction. (deepdyve.com)
  • DCI was defined as delayed neurological deterioration after aSAH not due to other causes evident on clinical, laboratory, or radiographic evaluation, as previously described.17 Delayed cerebral infarction was defined as a cerebral hypodensity in an arterial distribution visualized on CT imaging. (deepdyve.com)
  • Beckman Coulter), or creatinine kinase twice the upper reference range in the context of clinical myocardial infarction and provision of reperfusion, revascularization, aspirin, ACE inhibitors, statins, β-blockers, and clopidogrel. (diabetesjournals.org)
  • The USC Cerebral Revascularization Center at Keck Medicine of USC specializes in the use of bypass strategies to treat complex diseases such as moyamoya disease, giant or complex cerebral aneurysms, chronic ischemic disease and other rare conditions. (keckmedicine.org)
  • Direct and indirect revascularization for moyamoya disease surgical techniques and peri-operative complications. (biomedsearch.com)
  • We have performed surgical treatment for Moyamoya disease using the superficial temporal artery to middle cerebral artery (STA-MCA) anastomosis and encephalo-duro-arterio-myo-synangiosis (EDAMS). (biomedsearch.com)
  • In this paper, the surgical technique of combined revascularization for Moyamoya disease as well as peri-operative complications are discussed. (biomedsearch.com)
  • Neovascularization (angiogenesis) after revascularization in moyamoya disease. (biomedsearch.com)
  • The effects of direct and indirect revascularization for moyamoya disease were analyzed for each donor artery to determine which surgical procedure is most useful for the induction of neovascularization. (biomedsearch.com)
  • In the past 12 years, 85 patients with moyamoya disease were surgically treated by combined surgery consisting of indirect revascularization via encephalo-duro-arterio-myo-synangiosis (EDAMS) and direct revascularization via the superficial temporal artery and the middle cerebral artery (STA-MCA) bypass. (biomedsearch.com)
  • In indirect revascularization surgery for moyamoya disease, the temporal muscle (the deep temporal artery) and the dura mater (the middle meningeal artery) are useful donors to the ischemic brain. (biomedsearch.com)
  • Rapid and near-complete resolution of moyamoya vessels in a patient with moyamoya disease treated with superficial temporal artery-middle cerebral artery bypass. (stanford.edu)
  • Direct and combined revascularization in pediatric moyamoya disease. (stanford.edu)
  • Clinical outcome after 450 revascularization procedures for moyamoya disease. (stanford.edu)
  • Outcome of repeat revascularization surgery for moyamoya disease after an unsuccessful indirect revascularization. (stanford.edu)
  • Intraoperative blood flow analysis of direct revascularization procedures in patients with moyamoya disease. (stanford.edu)
  • Cerebral Hemodynamics in "Moyamoya" Disease:-II. (nii.ac.jp)
  • We are also the highest volume center for surgical treatment, called revascularization, in patients with moyamoya, with the shortest length of stay and best outcomes. (childrenshospital.org)
  • Cerebral angiograms and CT angiograms performed between August 2004 and August of 2006 demonstrating moyamoya collateralization were retrospectively reviewed. (frontiersin.org)
  • There were three cases of middle cerebral artery stenosis associated with a moyamoya pattern of collateralization. (frontiersin.org)
  • There are less frequent reports of moyamoya pattern collateralization associated with middle cerebral artery occlusion in Japanese patients. (frontiersin.org)
  • We report three patients with isolated middle cerebral artery stenosis or occlusion associated with moyamoya pattern collateralization in Caucasian patients. (frontiersin.org)
  • Cerebral angiograms and computed tomographic(CT) angiograms performed between August 2004 and August of 2006 in which the moyamoya pattern was observed were retrospectively reviewed. (frontiersin.org)
  • Lessons Learned from the Initial Experience with Pedicled Temporoparietal Fascial Flap for Combined Revascularization In Moyamoya Angiopathy: A Case Series World Neurosurg. (usc.edu)
  • Children with sickle cell disease (SCD) and moyamoya may benefit from indirect cerebral revascularization surgery in addition to chronic blood transfusion therapy for infarct prevention. (scinfo.org)
  • Twenty-seven children with SCD and confirmed moyamoya receiving chronic transfusion therapy were identified, of whom 12 underwent indirect cerebral revascularization. (scinfo.org)
  • Cerebral vascular pathology comprises the major part of neurology and neurosurgery. (hindawi.com)
  • Dr. Ooi's special clinical interests include complex open cerebrovascular surgery, minimally invasive endovascular neurosurgery, and cerebral revascularization surgery for stroke prevention and treatment. (texashealth.org)
  • The role of cerebral revascularization in patients with intracranial aneurysms. (semanticscholar.org)
  • Cerebral revascularization offers an important adjunct to parent-vessel ligation in the treatment of large and otherwise inaccessible intracranial aneurysms. (semanticscholar.org)
  • Internationally recognized as an expert in cerebral revascularization and cerebral aneurysms, his work focuses on diseases of the brain vessels. (northwell.edu)
  • Microvascular anastomosis techniques are important for revascularization surgeries on brachiocephalic and carotid arteries and complex cerebral aneurysms and even during resection of brain tumors that obstruct major cerebral arteries. (hindawi.com)
  • Bypass techniques are still valuable for the surgical treatment of complex cerebral aneurysms by reducing the risk of temporary and constant brain ischemia due to the alteration in blood flow. (hindawi.com)
  • A perspective on the optimal follow-up frequency and imaging modality type for treated cerebral aneurysms. (evtoday.com)
  • Middle cerebral artery aneurysms / Michael r. (worldcat.org)
  • Complex Revascularization for Idiopathic Intracranial Occlusive Disease with Unruptured, Fusiform Anterior Cerebral Artery and Middle Cerebral Artery Aneurysms: 3-Dimensional Operative Video World Neurosurg. (usc.edu)
  • Revascularization is a surgical technique for treating aneurysms or blocked cerebral arteries. (halifaxhealth.org)
  • A thrombotic stroke occurs when plaque and clots form locally on the wall of a cerebral artery, leading to a progressive narrowing of the arterial lumen until it becomes completely occluded. (medscape.com)
  • One patient died of a stroke after revascularization. (thejns.org)
  • Purpose: In patients with unilateral internal carotid or middle cerebral artery (ICA or MCA) occlusive disease, the degree of crossed cerebellar hypoperfusion that is evident within a few months after the onset of stroke may reflect cerebral metabolic rate of oxygen in the affected cerebral. (ebscohost.com)
  • Postcontrast image 24 hours after a right middle cerebral artery stroke, demonstrating contrast extravasation through a faulty blood-brain barrier. (medscape.com)
  • The EC/IC Bypass Study also provided data on the risk of stroke in patients with symptomatic carotid siphon or middle cerebral artery stenosis or occlusion ( 18 ). (ajnr.org)
  • A defined subset analysis of the EC/IC Trial data found middle cerebral artery stenoses to have an annual ipsilateral ischemic stroke rate of 7.8% ( 14 ). (ajnr.org)
  • The Solitaire™ Platinum revascularization device, featuring Parametric™ design, a unique overlapping stent retriever-based technology, restores blood flow and retrieves clots from occluded blood vessels in the brain for patients experiencing acute ischemic stroke (AIS) due to a large vessel occlusion (LVO). (medtronic.com)
  • The Solitaire™ Platinum Revascularization Device is indicated for use to restore blood flow in the neurovasculature by removing thrombus for the treatment of acute ischemic stroke to reduce disability in patients with a persistent, proximal anterior circulation, large vessel occlusion, and smaller core infarcts who have first received intravenous tissue plasminogen activator (IV t-PA). (medtronic.com)
  • The Solitaire™ Platinum Revascularization Device is indicated to restore blood flow by removing thrombus from a large intracranial vessel in patients experiencing ischemic stroke within 8 hours of symptom onset. (medtronic.com)
  • In: Spetzler RF, Carter LP, Selman WR, Martin NA (eds) Cerebral revascularization for stroke. (springer.com)
  • Cerebral revascularization for stroke. (springer.com)
  • The research focuses on the degree of blood supply restoration in the brain by means of transcateter laser revascularization in patients after ischemic stroke. (pulsus.com)
  • Transcatheter laser revascularization is much more effective in the treatment of ischemic stroke consequences than conservative methods of treatment are. (pulsus.com)
  • What are the signs and symptoms of posterior cerebral artery occlusion in vertebrobasilar stroke? (medscape.com)
  • Emergent revascularization of acute tandem vertebrobasilar occlusions: Endovascular approaches and technical considerations-Confirming the role of vertebral artery ostium stenosis as a cause of vertebrobasilar stroke. (medscape.com)
  • This study reports that the Trevo Retriever was superior to the Merci Retriever for arterial revascularization in terms of reperfusion to TICI 2 or greater in the setting of acute ischemic stroke. (acc.org)
  • Dr. Alkayed sits on the editorial boards of Stroke, The American Journal of Physiology-Heart and Circulation, and the Journal of Cerebral Blood Flow and Metabolism. (ohsu.edu)
  • But at the same time, several randomized controlled trials have shown no benefit of surgical revascularization compared to the best medical treatments to prevent stroke [ 2 ]. (hindawi.com)
  • Ischemic Cerebral Stroke Prevention Therapeutics market is segmented by Type, and by Application. (reportsnreports.com)
  • Players, stakeholders, and other participants in the global Ischemic Cerebral Stroke Prevention Therapeutics market will be able to gain the upper hand as they use the report as a powerful resource. (reportsnreports.com)
  • In the competitive analysis section of the report, leading as well as prominent players of the global Ischemic Cerebral Stroke Prevention Therapeutics market are broadly studied on the basis of key factors. (reportsnreports.com)
  • Off-pump myocardial revascularization is associated with less incidence of stroke in elderly patients. (semanticscholar.org)
  • Sphenopalatine ganglion stimulation of acute ischemic stroke patients boosted cerebral blood flow and improved 90-day outcomes in patients with confirmed cortical infarctions. (mdedge.com)
  • Time to Reset the Definition of Successful Revascularization in Endovascular Treatment of Acute Ischemic Stroke. (amedeo.com)
  • We aimed to quantify the risk and predictors of ipsilateral ischemic stroke in patients with symptomatic carotid stenosis awaiting revascularization (carotid endarterectomy [CEA] or carotid artery stenting) by pooling individual patient data from recent prospective studies with high rates of treatment with modern stroke prevention medications. (diva-portal.org)
  • Patients with symptomatic 50%-99% carotid stenosis eligible for carotid revascularization were included and followed for early recurrent ipsilateral stroke or retinal artery occlusion (RAO). (diva-portal.org)
  • Ipsilateral recurrent ischemic stroke/RAO risk pre-revascularization was 2.7% (1 day), 5.3% (3 days), 11.5% (14 days), and 18.8% (90 days). (diva-portal.org)
  • On bivariate analysis, presentation with a cerebral vs ocular event was associated with higher recurrent stroke risk (log-rank p = 0.04). (diva-portal.org)
  • On multivariable Cox regression, recurrence was associated with older age (adjusted hazard ratio [HR] per 10-year increase 1.5, p = 0.02) with a strong trend for association with cerebral (stroke/TIA) vs ocular symptoms (adjusted HR 2.7, p = 0.06), but not degree of stenosis, smoking, vascular risk factors, or medications. (diva-portal.org)
  • Reduction in Overt and Silent Stroke Recurrence Rate Following Cerebral Revascularization Surgery in Children with Sickle Cell Disease and Severe Cerebral Vasculopathy. (scinfo.org)
  • Stents failed to meet noninferiority criteria compared with bypass surgery for composite one-year death, MI, and stroke in the randomized CARDia (Coronary Artery Revascularization in Diabetes) trial led by Kevin J. Beatt, MBBS, PhD, of Mayday University Hospital in London. (medpagetoday.com)
  • A 50-year-old woman, initially presenting with 6 weeks of right-sided hemiparesis and dysarthria, was treated for severe stenosis of the left internal carotid and middle cerebral arteries with intracranial angioplasty and placement of a balloon mounted Wingspan Stent (Boston Scientific, Fremont, CA). Continuous transcranial Doppler monitoring after stent placement indicated developing cerebral hyperperfusion. (nih.gov)
  • Medical therapy plus revascularization by angioplasty (alone or with stenting) without renal protection devices ( n = 403) or medical therapy alone in accordance with local protocols ( n = 403). (annals.org)
  • Cerebral angioplasty is similar to a widely used cardiology procedure, and is used to open partially blocked vertebral and carotid arteries in the neck, as well as blood vessels within the brain. (halifaxhealth.org)
  • Myocardial revascularization surgery received a boost after the appearance of selective coronary angiography 4 . (scielo.br)
  • Cerebral angiography was performed in 24.9% while extracranial-intracranial bypass was done in 8.4% of patients. (frontiersin.org)
  • 1 Multi-Slice Detector CT angiography (MSCTA) is an emerging non-invasive technique that can quickly examine the neurovascular circulation from the Great Vessels to the distal leptominengeal branches of the cerebral vasculature. (ispub.com)
  • Diagnostic and evaluation techniques rely on magnetic resonance imaging (MRI), magnetic resonance angiography (MRA) conventional angiography, and cerebral hemodynamics measurements. (dovepress.com)
  • Cerebral blood flow (CBF) and cerebrovascular reactivity (CVR) to acetazolamide were also measured using single-photon emission computed-tomography before CEA. (nii.ac.jp)
  • 3 TCAR minimizes the potential for cerebral embolization by eliminating the need for aortic arch manipulation and unprotected lesion manipulation with the distal embolic protection deployment necessary in TF-CAS. (evtoday.com)
  • Brain monitoring with transcranial Doppler is of particular value when the brain is at risk of cerebral hyper- or hypoperfusion, gaseous or particulate embolization, or their combined effects. (semanticscholar.org)
  • It is characterized by the narrowing or occlusion of proximal cerebral arteries, in particularly the distal internal carotid, proximal middle, or anterior cerebral arteries, which often leads to hypertrophy of lenticulostriate arteries and bypassing of the occlusive segment. (frontiersin.org)
  • The diagnostic criteria are as follows: (1) stenosis or occlusion of the anterior cerebral, middle cerebral or internal carotid arteries, (2) an abnormality of the vasculature surrounding these arteries, and (3) the presence of bilateral disease seen angiographically. (frontiersin.org)
  • The investigation will test in a phase II futility trial the potential of EDAS for further development before proceeding with the design of a definitive clinical trial of EDAS Revascularization in patients with Symptomatic Intracranial Arterial Stenosis (ERSIAS). (clinicaltrials.gov)
  • The purpose of this study is to determine completeness of revascularization, graft patency, clinical outcomes, health-related quality of life and costs in 200 initial trial participants at. (bioportfolio.com)
  • The clinical charts, angiographic revascularization, and hemodynamic changes were reviewed at 6-60 months after surgery. (medscimonit.com)
  • Today, significant progress has been made in the field of preventative revascularization of strokes due to the introduction of new technologies of microneurosurgery into clinical practice, contributing to the improvement of safety of treatment. (hindawi.com)
  • Metabolic comparison of one-anastomosis gastric bypass, single-anastomosis duodenal-switch, Roux-en-Y gastric bypass, and vertical sleeve gastrectomy in rat. (bioportfolio.com)
  • The aim of this prospective randomized controlled trial is to compare the two procedures One-anastomosis gastric Bypass/Mini-gastric Bypass (OAGB/MGB) and Roux-en Y gastric bypass (RYGB) i. (bioportfolio.com)
  • He serves as director and instructor for the Cerebral Vascular Anastomosis Laboratory of the Congress of Neurological Surgeons. (seattlechildrens.org)
  • Three-Vessel Anastomosis for Direct Bihemispheric Cerebral Revascularization Oper Neurosurg (Hagerstown). (usc.edu)
  • Dissection of the STA, which is the most powerful resource of direct revascularization, should be carefully carried out using a surgical microscope. (biomedsearch.com)
  • Abdulrauf also has written the first textbook on the procedure, Cerebral Revascularization: Techniques in Extracranial-to-Intracranial Bypass Surgery: Expert Consult. (redorbit.com)
  • Reversed-flow saphenous vein grafts for cerebral revascularization. (healthtap.com)
  • Cadaveric SVGs are a reasonable interposition graft option in cerebral revascularization surgery when autologous grafts are not available. (thejns.org)
  • Since the beginning of coronary surgery, the Russian physician Kolesov 9 played an important role in myocardial revascularization without extracorporeal circulation. (scielo.br)
  • Conclusions-Both preoperative cerebral hemodynamic impairment and reactive oxygen species produced during surgery correlate with development of cerebral hyperperfusion after CEA. (nii.ac.jp)
  • Only two cases from this series underwent revascularisation surgery. (hindawi.com)
  • Since that time, he has led quality improvement initiatives in cerebral revascularization and spine surgery. (texashealth.org)
  • Revascularization surgery can be indicated, with several techniques. (dovepress.com)
  • Symptomatic cerebral hemorrhage is defined as parenchymal, subarachnoid or intraventricular bleeding detected in any imaging modality that is associated with new neurological deficits. (clinicaltrials.gov)
  • The authors retrospectively reviewed the charts of all patients with advanced head and neck cancers who underwent ICA sacrifice with revascularization in which an extracranial-intracranial bypass was used between 1995 and 2010 at the Barrow Neurological Institute. (thejns.org)
  • All patients underwent ICA sacrifice with revascularization. (thejns.org)
  • Role of botulinum neurotoxin-A in cerebral revascularization graft vasospasm prevention: current state of knowledge Neurosurg Focus. (usc.edu)
  • Objectives: This study was conducted to evaluate the effect of revascularisation, whether revascularisation improves total cerebral blood flow volume (TCBF), and how cerebral veins would respond to altered TCBF. (ebscohost.com)
  • These bypasses maintain blood flow to healthy tissue that can be used for direct and indirect revascularization. (keckmedicine.org)
  • Hyperperfusion is defined as a major increase in ipsilateral cerebral blood flow (CBF) that is well above the metabolic demands of the brain tissue. (medscape.com)
  • Hypotension (rapid sympathectomy) and hypocapnia compromise cerebral blood flow. (soap.org)
  • The ImpACT-24B (Implant for Augmentation of Cerebral Blood Flow Trial, Effectiveness and Safety in a 24-Hour Window) trial involved 1,000 patients at 73 centers in 18 countries, including the United States. (mdedge.com)
  • To assess the immediate postoperative period of patients undergoing myocardial revascularization without extracorporeal circulation with different types of grafts. (scielo.br)
  • Myocardial revascularization without extracorporeal circulation was performed in 112 patients. (scielo.br)
  • In the last century, myocardial revascularization procedures began. (scielo.br)
  • In Brazil, Zerbini et al 7 carried out the first studies on myocardial revascularization according to the Vineberg technique and the Bailey technique as modified by Senning. (scielo.br)
  • Jatene et al 8 were the first to perform myocardial revascularization by using internal saphenous vein bypass. (scielo.br)
  • Ankeney 10 and, in the 1980s, Benetti 11 and Buffolo et al 12 systematized the procedure of myocardial revascularization without extracorporeal circulation and began to use it in patients at higher risk, avoiding extracorporeal circulation and aorta handling to reduce postoperative complications. (scielo.br)
  • At the beginning, myocardial revascularization without extracorporeal circulation was used to treat single-vessel lesions in critically ill patients 13-15 . (scielo.br)
  • Reducing the risk of myocardial revascularization: relevance of multimodal brain monitoring. (semanticscholar.org)
  • The BARI 2D trial in diabetes found no difference in mortality or major cardiovascular outcomes for revascularization overall compared with optimal medical therapy, similar to the COURAGE trial in a general population. (medpagetoday.com)
  • The aim of this study was to investigate hemodynamic changes in the ophthalmic circulation after carotid revascularization, assessed with duplex ultrasonography (DUS), and their potential impact on ocular function in patients suffering from OIS. (minervamedica.it)
  • EVIDENCE SYNTHESIS: The analysis included fourteen cohort studies (589 patients) reporting on the hemodynamic effect of carotid revascularization on the ophthalmic circulation using DUS. (minervamedica.it)
  • Background and Purpose-The purpose of the present study was to determine whether preoperative cerebral hemodynamic impairment and reactive oxygen species produced during carotid endarterectomy (CEA) correlate with development of postoperative cerebral hyperperfusion. (nii.ac.jp)
  • The high-resolution angiographic image described here may provide a radiologic indication of the onset or progression of cerebral hyperperfusion, permitting appropriate therapeutic management prior to serious sequelae developing. (nih.gov)
  • An angiographic correlate of cerebral hyperperfusion after revascularization? (nih.gov)
  • P=0.0098) were significantly associated with development ofpostoperative cerebral hyperperfusion among the variables tested. (nii.ac.jp)
  • Ten of 11 patients with reduced preoperative CVR and increased MDA-LDL after ICA declamping developed post-CEA hyperperfusion, and 2 of these patients developed cerebral hyperperfusion syndrome. (nii.ac.jp)
  • In comparison, among historical controls requiring distal revascularization and no adjunctive toe or foot amputations, limb salvage was 76.5 per cent (P = NS). (ebscohost.com)
  • Surgical revascularisation is possible in cases of patent distal vessels, but the indications are debatable. (hindawi.com)
  • Recognising the patency of the distal vessels is important because it may allow for effective surgical revascularisation [ 5 ]. (hindawi.com)
  • Susceptibility weighted imaging in cerebral hypoperfusion-can we predict increased oxygen extraction fraction? (ebscohost.com)
  • The overall composite of major adverse cardiovascular and cerebral events, adding repeat revascularization with the primary endpoint, favored CABG, too (11.3% versus 19.3%, P =0.016). (medpagetoday.com)
  • This is a randomized, prospective European Multicenter Study comparing complete arterial revascularization of the coronary arteries using arterial graft material exclusively and "conven. (bioportfolio.com)
  • Stenting of carotid or vertebral arteries and large cerebral veins involves use of a fine, tubular wire mesh to hold the vessel open. (halifaxhealth.org)
  • We report a patient with cerebral venous thrombosis who presented with acute onset of severe prolonged vertigo, nausea, vomiting, unilateral decreased caloric response and occipital headache, simultaneously with acute venous cerebral infarcts on brain MRI. (ebscohost.com)
  • Conclusions In primary PCI for STEMI, the routine use of DP increased the incidence of stent thrombosis and clinically driven target lesion/vessel revascularization during 15 months of follow-up. (onlinejacc.org)
  • The rate of overt and silent infarct recurrence was significantly lower following indirect cerebral revascularization. (scinfo.org)
  • Fisher CM (1961) Anticoagulant therapy in cerebral thrombosis and cerebral embolism. (springer.com)
  • Revascularization and medical therapy did not differ for change in renal function (mean slope −0.07 × 10 −3 vs −0.13 × 10 −3 L/µmol/y, P = 0.06), renal events, major CV events, or mortality (Table). (annals.org)
  • medical therapy includes antiplatelet, anticoagulant and cerebral vasodilator drugs. (soap.org)
  • Explain to interested patients that the study did not include a treatment arm with optimal medical therapy alone, which has been shown to be equivalent to revascularization procedures overall in prior trials both in patients with diabetes and the general population. (medpagetoday.com)
  • But when the two revascularization strategies were analyzed separately compared with medical therapy in BARI 2D, there appeared to be an advantage for CABG. (medpagetoday.com)