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.
Coronary Artery Bypass
Angioplasty, Balloon, Coronary
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).
Genus of perennial plants in the family CLUSIACEAE (sometimes classified as Hypericaceae). Herbal and homeopathic preparations are used for depression, neuralgias, and a variety of other conditions. Hypericum contains flavonoids; GLYCOSIDES; mucilage, TANNINS; volatile oils (OILS, ESSENTIAL), hypericin and hyperforin.
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)
Extracranial/intracranial bypass - definition of extracranial/intracranial bypass by The Free Dictionary
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
Dr. Chui and colleagues publish new study on Intracranial Bypass Procedures - Anesthesia & Perioperative Medicine - Western...
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.. ...
Computed tomographic angiography in evaluation of superficial temporal to middle cerebral artery bypass<...
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 ...
Use of extracranial-intracranial bypass in the management of symptomatic vasospasm<...
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 - ...
Long term evaluation of brain perfusion with magnetic resonance in high flow extracranial-intracranial saphenous graft bypass<...
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 ...
Computerized tomographic angiography for preoperative assessment of the superficial temporal artery for external carotid artery...
While the use of CTA to assess EC-IC bypass postoperatively has been described , 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 ...
The European Workshops on Basic Techniques of Microsurgery and Cerebral Revascularization, AKH, Vienna, Austria / Neurosurgery ...
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Neurosurgical Consultants: Understanding Neurological Surgery: What is Microvascular Neurosurgery
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 ...
March 2009: Endovascular Approaches to Cerebral Ischemia | The Journal of Neurosurgery Podcast Archive
Endovascular Approaches to Cerebral Ischemia Drs. Aaron Dumont and Max Kole discuss intracranial angioplasty and stent implantation for direct cerebral revascularization.
Browse by Creators - Zurich Open Repository and Archive
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.. ...
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Publications | Neurosurgery | Stanford Medicine
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 - Columbia Neurosurgery
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 ...
Targeted extracranial-intracranial bypass with intra-aneurysmal administration of indocyanine green: Case report<...
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 ...
Abstract TMP13: The Prevalence of Microbleeds in Moyamoya Disease and Moyamoya Syndrome in the United States | Stroke
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. ...
Leicester Research Archive: Complete occlusion of extracranial internal carotid artery: clinical features, pathophysiology,...
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, a Rare Medical Complication | Sehat
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
benign cerebral tumour 2005:2010[pubdate] *count=100 - BioMedLib™ search engine
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 ...
Johns Hopkins Medicine: Find a Doctor
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 ...
Organized inpatient (stroke unit) care in very old patients - Zurich Open Repository and Archive
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 ...
Mr. Nitin Mukerji | Expert Witness
Mr Nitin Mukerji is a Consultant Neurosurgeon (Cerebrovascular and Skull base), at the James Cook University Hospital, Middlesbrough. His basic medical education (MBBS) was completed at the All India Institute of Medical Sciences, Delhi - Indias premier medical school. He passed the Intercollegiate FRCS in March 2011 and gained entry into the Specialist Register in August 2012. Mr Mukerji completed a fellowship in complex cerebrovascular and skull base surgery at Stanford University, USA and as a visiting fellowship at the University of California, San Francisco.. He was appointed as a Consultant Neurosurgeon at James Cook University Hospital, Middlesbrough in July 2012.. Mr Mukerji specialises in all aspects of cerebrovascular disease including cerebral revascularization, aneurysms, arterio-venous malformations, cavernomas, dural fistulas, tumours of the skull base and carnio-vertebral junction, intrinsic tumours of the brain and degenerative spinal conditions. Meningiomas of the brain and ...
Computed tomographic demonstration of the effect of proximal parent artery ligation for giant intracranial aneurysms.
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
Segmentation of the thrombus of giant intracranial aneurysms from CT angiography scans with lattice Boltzmann method.
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
Hemoglobin concentration and prognosis in symptomatic obstructive cerebrovascular disease. | Stroke
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. ...
When the fat hits the brain-salvage STA-MCA bypass for an intracranial ICA occlusion due to a fat embolus | BMJ Neurology Open
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 ...
Turism Saksamaal - reisi, puhka, pidutse
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 ...
Occipital artery to middle cerebral artery bypass in pediatric moyamoya disease: rescue therapy after failed revascularization...
Preoperatively, all patients (n = 9) suffered non-PCA-related recurrent symptoms, and 4 had PCA-related symptoms. At 1-year follow-up, all patients with PCA-related symptoms showed complete recovery. Additionally, 8 (89%) patients with non-PCA symptoms experienced improvement. Only 1 (11%) patient showed no improvement after the surgical procedure. The mean pre- and postoperative CVR values of the MCA territory were 14.8% and 31.3%, respectively, whereas the respective mean CVR values of the PCA territory were 22.8% and 40.0%. ...
List of variants reported as uncertain significance for Moyamoya syndrome by Genetics Molecular Biology Lab, Hospital Juan P...
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. ...
Management of Patient with Moyamoya Disease | Springer for Research & Development
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...
Moyamoya Disease - SeattleNeurosciences.com
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.
Search Results | jns
Catheter angiography revealed high STA-MCA bypass capacity in 35 cases (type A: n = 22, type B: n = 13), whereas low bypass capacity was noted in the remaining 15 cases (type C: n = 12, type D: n = 3). The BVF values in the STA were 60 ± 28 ml/min (range 4-121 ml/min) in the former and 12 ± 4 ml/min (range 6-18 ml/min) in the latter group (p , 0.0001). Corresponding values of mean BFV and PI were 57 ± 21 cm/sec (range 16-100 cm/sec) versus 22 ± 8 cm/sec (range 10-38 cm/sec) (p , 0.0001) and 0.8 ± 0.2 (range 0.4-1.3) versus 1.4 ± 0.5 (range 0.5-2.4) (p , 0.0001), respectively. Differences in the external carotid artery were less distinct: BVF 217 ± 71 ml/min (range 110-425 ml/min) versus 151 ± 41 ml/min (range 87-229 ml/min) (p = 0.001); mean BFV 47 ± 17 cm/sec (range 24-108 cm/sec) versus 40 ± 7 cm/sec (range 26-50 cm/sec) (p = 0.15); PI 1.5 ± 0.4 (range 1.0-2.5) versus 1.9 ± 0.4 (range 1.2-2.6) (p = 0.009). A retrograde blood flow in the MCA was found in 14 cases (9 in the M1 and M2 ...
I have a 100% occluded carotid artery. When should I consider surgery? - Answered by top doctors on HealthTap
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.
Moyamoya disease | Radiology Case | Radiopaedia.org
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...
Moyamoya Disease - Phoenix, AZ - Dr. Peter Nakaji
Dr. Peter Nakaji in Phoenix, AZ, treats Moyamoya Disease, a rare cerebrovascular disease caused by blocked arteries at the base of the brain.
Moyamoya Disease -Factors and Prevalence for Perivascular Spaces in Post-Neurological Adult Patients: Neurosurgeons Perspective
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.
Flower in the Eye, Smoke in the Brain
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.
DMOZ - Health: Conditions and Diseases: Cardiovascular Disorders: Vascular Disorders: Moyamoya
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).
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A Successful Case of Axillo-Axillary Bypass Grafting with Mild Hypothermia for High-Risk Subclavian Steal Syndrome
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 ...
Surgical Treatment for Patients with Moyamoya Syndrome and Type 1 Neurofibromatosis<...
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 ...
Arterial Revascularization Therapy Study-CK-MB | definition of Arterial Revascularization Therapy Study-CK-MB by Medical...
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Arterial Revascularization Therapy Study | definition of Arterial Revascularization Therapy Study by Medical dictionary
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Velocity-coded colour magnetic resonance angiography and perfusion-weighted magnetic resonance imaging for the evaluation of...
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 ...
Browse In Signs and Symptoms, Hyperthyroidism, Topic, Gender, TSH, Total T3, Condition/ Syndrome, Clinical Overview | EDM Case...
We describe the case of a young Hispanic female who presented with thyrotoxicosis with seizures and ischemic stroke. She was diagnosed with a rare vasculopathy - moyamoya syndrome. After starting antithyroid therapy, her neurologic symptoms did not improve. Acute neurosurgical intervention had relieved her symptoms in the immediate post-operative period after re-anastomosis surgery. However, 2 post-operative days later, she was found to be in status epilepticus and in hyperthyroid state. She quickly deteriorated clinically and had expired a few days afterward. This is the second case in literature of a fatality in a patient with moyamoya syndrome and Graves disease. However, unlike the other case report, our patient had undergone successful revascularization surgery. We believe her underlying non-euthyroid state had potentiated her clinical deterioration. Case studies have shown positive correlation between uncontrolled hyperthyroidism and stroke-like symptoms in moyamoya syndrome. Mostly all ...
Understanding and treating moyamoya disease in children<...
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. ...
Journal of Korean Neurosurgical Society
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 ...
Superficial temporal artery-to-middle cerebral artery bypass surgery for middle cerebral artery stenosis in a patient with...
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. ...
PatientsLikeMe | Moyamoya disease symptoms, treatments & patient forums | PatientsLikeMe
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.
Response to letter regarding article, comparative effectiveness of carotid revascularization therapies: Evidence from a...
TY - JOUR. T1 - Response to letter regarding article, comparative effectiveness of carotid revascularization therapies. T2 - Evidence from a national hospital discharge database. AU - McDonald, Robert J.. AU - McDonald, Jennifer S.. AU - Cloft, Harry J.. N1 - Copyright: Copyright 2016 Elsevier B.V., All rights reserved.. PY - 2015/2/6. Y1 - 2015/2/6. UR - http://www.scopus.com/inward/record.url?scp=84922335512&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=84922335512&partnerID=8YFLogxK. U2 - 10.1161/STROKEAHA.114.007861. DO - 10.1161/STROKEAHA.114.007861. M3 - Letter. C2 - 25550376. AN - SCOPUS:84922335512. VL - 46. SP - e42. JO - Stroke. JF - Stroke. SN - 0039-2499. IS - 2. ER - ...
A Case of Ruptured Giant Intracranial Aneurysm During Carotid Angiography.
The authers report a case of giant anterior communicating artery aneurysm which was ruptured into lateral ventricle during carotid angiography. ...
Surgical Treatments for Moyamoya | Neurosurgery | Stanford Medicine
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 | Memorial Hermann
Moyamoya disease is a vascular condition in which certain arteries in the brain are constricted. The constriction, which occurs in the intracranial portion of the internal carotid arteries and their major branches, causes progressive narrowing of these vessels, eventually resulting in stroke.
EDAS Ntrip service evolution to support HTTP-based communication: Coming soon! | EGNOS User Support
EDAS is the EGNOS Data Access Service providing access over the Internet to EGNOS data and corrections. In particular, the EDAS Ntrip Service provides access to the GNSS measurements (RTCM 2.1, 2.3 and 3.1 formats) coming from the EGNOS stations through the Ntrip protocol in real-time, including phase measurements for RTK (Real-time kinematic) positioning (RTCM 3.1) and differential GNSS corrections (RTCM 2.1, 2.3), over the internet.. The performance level of the differential GNSS corrections delivered through the EDAS Ntrip service is below 1 meter horizontal accuracy for locations up to 260 km away from the designated EGNOS station (see references) which makes it suitable to support applications in the transportation, mapping and emergency services domains over a large geographical area in Europe. Additionally, in the precision agriculture context, the EDAS differential GNSS corrections can support pass-to-pass accuracies in the order of 20 cm in a consistent manner and with a high degree of ...
Visual Hallucinations in Moyamoya Disease - ClinOwl
Moyamoya disease (MMD) is characterized by the progressive development of stenosis in the distal carotid territory and an abnormal vascular network. It is
Moyamoya disease diagnostics: Costs for treatment #260949 in Germany | BookingHealth
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Moyamoya Disease | Baylor Medicine
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 treatment #75509 in Germany | BookingHealth
Treatment of moyamoya disease with a shunt overlay with interponate (costs for program #75509) ✔ University Hospital Frankfurt ✔ Department of Neurosurgery ✔ BookingHealth.com
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Solitaire™ FR Revascularization Device | ANS Neurovascular Center NJ
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.
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James I. Ausman
Ausman JI, Chater NL (1980). "New approaches in cerebral revascularization". In Peerless SJ (ed.). Fourth International ... cerebral arteriovenous malformations Ausman is a pioneer in the field of revascularization techniques to improve cerebral blood ... anastomosis and revascularization non-invasive monitoring of cerebral hemodynamics, blood gases and pH in surgical patients ... flow, relieve cerebral ischemia, and treat cerebral infarction, and has contributed articles and chapter books on the subject. ...
1993). Cerebral Revascularisation, Med-Orion Publishing. ISBN 978-9963-592-54-8 Bergqvist D. et al. (1994). Prevention of ...
Cerebral Revascularization: Techniques in Extracranial to Intracranial Bypass Surgery. Copyright 2011 Elsevier, Inc. ISBN 978-1 ... He has authored the main reference textbook for brain bypass surgery titled Cerebral Revascularization in which Abdulrauf ... Abdulrauf write a reference textbook for bypass brain surgery titled Cerebral Revascularization: Techniques in Extracranial-to- ... Coppens, J. R.; Cantando, J. D.; Abdulrauf, S. I. (2008). "Minimally invasive superficial temporal artery to middle cerebral ...
Cerebral hyperperfusion syndrome
Kirchoff-Torres, KF; Bakradze, E (19 March 2018). "Cerebral Hyperperfusion Syndrome After Carotid Revascularization and Acute ... Cerebral hyperperfusion syndrome, also known as reperfusion syndrome, is a dysregulated state of cerebral blood flow following ... Risk factors include hypertension, particularly high blood pressures in the first few days following revascularization, and ...
Lutsep HL, Rymer MM, Nesbit GM (2008). "Vertebrobasilar revascularization rates and outcomes in the MERCI and multi-MERCI ... A cerebral infarction is the pathologic process that results in an area of necrotic tissue in the brain (cerebral infarct). It ... Cerebral infarction is caused by a disruption to blood supply that is severe enough and long enough in duration to result in ... If cerebral infarction is caused by a thrombus occluding blood flow to an artery supplying the brain, definitive therapy is ...
Dural arteriovenous fistula
... occurring in response to thrombosis and collateral revascularization of a venous sinus. Cerebral angiography is the diagnostic ... Cognard, C.; Gobin, Y. P.; Pierot, L.; Bailly, A. L.; Houdart, E.; Casasco, A.; Chiras, J.; Merland, J. J. (1995). "Cerebral ...
Bhan, Anil; Swain, Sunil; Juneja, R.; Saxena, P.; Venugopal, P. (1 April 2005). "Total arterial revascularization in a child ... Bhan, Anil; Agarwal, Saket; Saxena, Praveen; Venugopal, Panangipalli (2002). "Retrograde cerebral perfusion". The Annals of ... "Surgical myocardial revascularization without cardiopulmonary bypass". The Annals of Thoracic Surgery. 69 (4): 1216-1221. doi: ... Rare Heart Surgery Performed on Infant Indore creates record with first heart transplantation Total arterial revascularization ...
... cerebral metabolism, cerebral homeostasis, and edema, as well as surgical techniques for cerebral revascularization and intra- ... Regli's research interests involve clinical questions in the domain of cerebral ischemia, ... Journal of Cerebral Blood Flow and Metabolism. 21 (5): 477-482. doi:10.1097/00004647-200105000-00001. ISSN 0271-678X. PMID ... New Trends in Cerebral Aneurysm Management. Acta Neurochirurgica Supplements. Vienna: Springer. 82: 41-46. doi:10.1007/978-3- ...
Endoscopic thoracic sympathectomy
There are reports of ETS being used to achieve cerebral revascularization for people with moyamoya disease, and to treat ... Dimitriadou, V; Aubineau, P; Taxi, J; Seylaz, J (1988). "Ultrastructural changes in the cerebral artery wall induced by long- ... have died during this procedure due to major intrathoracic bleeding and cerebral disruption. Bleeding during and following the ... Ultrastructural changes in the cerebral artery wall induced by long-term sympathetic denervation Sympathectomy eliminates the ...
List of MeSH codes (E04)
... cerebral revascularization MeSH E04.494.575 - mohs surgery MeSH E04.520.050 - abortion, induced MeSH E04.520.050.050 - abortion ... cerebral revascularization MeSH E04.100.814.445 - embolectomy MeSH E04.100.814.456 - endarterectomy MeSH E04.100.814.456.250 - ... cerebral decortication MeSH E04.525.160.500 - hemispherectomy MeSH E04.525.170 - cerebrospinal fluid shunts MeSH E04.525. ... myocardial revascularization MeSH E04.100.376.719.100 - angioplasty, transluminal, percutaneous coronary MeSH E04.100.376.719. ...
In diabetic mellitus type 2 patients with postinfarct heart failure who were undergoing surgical coronary revascularization, ... CA1 also mediates hemorrhagic retinal and cerebral vascular permeability through prekallikrein activation and serine protease ... "Extracellular carbonic anhydrase mediates hemorrhagic retinal and cerebral vascular permeability through prekallikrein ...
Combined revascularisation procedure, which includes both the direct superficial temporal artery (STA) to middle cerebral ... These vessels are the ACA (anterior cerebral artery), MCA (middle cerebral artery), and ICA (internal carotid artery). The ... anterior cerebral artery and middle cerebral artery Stage 4 Minimization of the moyamoya and defects of the posterior cerebral ... The artery is then sutured to a branch of the middle cerebral artery on the surface of the brain and the bone is replaced.[ ...
Severe hyponatremia can result in accumulation of fluid in the brain, causing cerebral edema and intracranial hemorrhage. ... coronary catheterization may be used to identify possibilities for revascularisation through percutaneous coronary intervention ...
The goal of revascularization therapies, whether endovascular or surgical, is to re-establish or optimize perfusion and stop ... "Cerebral Aneurysm - Symptoms, Diagnosis and Treatments". www.aans.org. Retrieved 2019-11-03. International Study of Unruptured ... Either can result in degrees of cerebral ischemia. Carotid artery disease can be typically addressed with open surgical ... Since its development by Charles Dotter when he did a percutaneous peripheral vascular revascularization procedure for the ...
Sex differences in stroke care
Haast, Roy A M; Gustafson, Deborah R; Kiliaan, Amanda J (3 October 2012). "Sex differences in stroke". Journal of Cerebral ... Towfighi, Amytis; Markovic, Daniela; Ovbiagele, Bruce (November 2013). "Sex Differences in Revascularization Interventions ... were less likely to receive cerebro-vascular and cardiac reperfusion/revascularization therapies, intravenous tPA (Tissue ...
Vascular endothelial growth factor
... and angiogenic factors after focal cerebral ischemia: correlations with angiogenesis and cerebral edema". Neurochem. Int. 58 (8 ... This time-span of VEGF-A expression corresponds with the endogenous re-vascularization capacity after injury. This would ... 2010). "Induction of vascular endothelial growth factor receptor-3 mRNA in glial cells following focal cerebral ischemia in ... Cerebral Cortex. 18 (7): 1630-39. doi:10.1093/cercor/bhm190. PMC 2430152. PMID 17986606. Zan L, Wu H, Jiang J, Zhao S, Song Y, ...
Drug-eluting balloon angioplasty has significantly less restenosis, late lumen loss and target lesion revascularization at both ... Cerebral Hyperperfusion Syndrome After Carotid Artery Stenting: A Systematic Review and Meta-analysis". European Journal of ... Carotid Artery Stenting: A Systematic Review and Meta-Analysis". Cardiovascular Revascularization Medicine. 19 (5 Pt B): 638- ... from the X-rays used Contrast-induced renal injury Cerebral Hyperperfusion Syndrome leading to stroke is a serious complication ...
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. IP ...
An increasingly studied trend in amputation rates is the gender disparity of women receiving more surgical revascularization ... and those with cerebral palsy often have scissoring gait. Over 185,000 amputations occur annually, with ... The rate of amputation has decreased significantly with the introduction and optimization of revascularization to combat ... "An analysis of the outcomes of a decade of experience with lower extremity revascularization including limb salvage, lengths of ...
Following surgery, a rare early complication is cerebral hyperperfusion syndrome, also known as reperfusion syndrome, which is ... controversies in carotid artery revascularization". Circulation. 118 (25): 2852-2859. doi:10.1161/circulationaha.108.191175. ... With general anaesthesia, indirect methods of assessing cerebral perfusion must be used. Electroencephalography (EEG), ... transcranial doppler analysis, cerebral oximetry, or carotid artery stump pressure monitoring can guide the placement of a ...
Leptomeningeal collateral circulation
Novel Imaging Marker for Revascularization in Middle Cerebral Artery Occlusion". Stroke: A Journal of Cerebral Circulation. 47 ... the posterior cerebral artery and middle cerebral artery, the anterior cerebral artery and posterior cerebral artery, and the ... He injected the middle cerebral artery, anterior cerebral artery and posterior cerebral artery in turn, in an attempt to ... Inter-territorial end to end anastomoses exist between branches of the anterior cerebral artery and middle cerebral artery, ...
Acute decompensated heart failure
Acute myocardial infarction can precipitate acute decompensated heart failure and will necessitate emergent revascularization ... and cerebral symptoms of varying severity, ranging from anxiety to memory impairment and confusion. Chronic stable heart ...
Acute limb ischaemia
CTA uses radiation and may not pick up on vessels for revascularization that are distal to the occlusion, but it is much ... Mesenteric ischaemia Cerebral ischaemia Cardiac ischaemia In order to treat acute limb ischaemia there are a series of things ... MRA are used most often because the duplex ultrasonography although non-invasive is not precise in planning revascularization. ...
Harrison's Principles of Internal Medicine
... and Other Focal Cerebral Disorders Chapter V3: Video Library of Neuro-Ophthalmology Chapter V4: Examination of the Comatose ... Atlas of Percutaneous Revascularization Chapter A12: Atlas of Chest Imaging Chapter A13: Atlas of Liver Biopsies Chapter A14: ... and Other Cerebral Disorders Chapter 27: Sleep Disorders Section 4: Disorders of Eyes, Ears, Nose, and Throat Chapter 28: ...
Hughes GR (October 1983). "Thrombosis, abortion, cerebral disease, and the lupus anticoagulant". Br. Med. J. (Clin. Res. Ed.). ... and those in whom revascularization, such as coronary arterial bypass, fails because of rapid occlusion of the graft. There is ... Sanna G, D'Cruz D, Cuadrado MJ (August 2006). "Cerebral manifestations in the antiphospholipid (Hughes) syndrome". Rheum. Dis. ... In other rare conditions generally linked with hypercoagulability, such as cerebral venous thrombosis and portal vein ...
Cerebral protection is usually obtained by flow reversal - the common carotid artery is clamped, and arterial blood from the ... "Evaluating the optimal training paradigm for transcarotid artery revascularization based on worldwide experience". Journal of ... A number of other steps may or may not be performed, including the use of a cerebral protection device, pre- or post-stent ... Flow reversal or filter cerebral protection may be used. The procedure is typically performed percutaneously. Trans-carotid ...
The most frequent location for a watershed stroke is the region between the anterior cerebral artery and middle cerebral artery ... Endovascular interventions, including surgical revascularization, can increase blood flow in the area of the stroke, thereby ... middle cerebral artery (MCA), and posterior cerebral artery (PCA). Internal watershed strokes (IWS), or subcortical brain ... Damage to the cerebral cortex may lead to aphasia or confusion and damage to the cerebellum may lead to lack of motor movement ...
2000s: Following upon experience with CABG and DES for revascularization in patients with diabetes and multivessel coronary ... El origen de la libertad está en la corteza cerebral'". ELMUNDO (in Spanish). 2014-06-30. Retrieved 2020-10-28. O'Rourke, ... "Strategies for multivessel revascularization in patients with diabetes". The New England Journal of Medicine. 367 (25): 2375- ...
developed monoclonal antibodies to TGFβ2, cerebral wounds were generated in rat brains, and the antibodies were administered ... Moreover, the glial scar stimulates revascularization of blood capillaries to increase the nutritional, trophic, and metabolic ...
ICD-9-CM Volume 3
... 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 ...
Hypertension can increase the risk of cerebral, cardiac, and renal events. Secondary hypertension is a type of hypertension ... "Coronary artery bypass graft surgery vs percutaneous interventions in coronary revascularization: a systematic review". JAMA. ...
History of invasive and interventional cardiology
... ischemia-driven target lesion revascularization, target vessel revascularization, and stent thrombosis in the first month ... angiography itself was first developed in 1927 by the Portuguese physician Egas Moniz at the University of Lisbon for cerebral ... 2002). "A randomized comparison of a sirolimus-eluting stent with a standard stent for coronary revascularization". N Engl J ... The FAME study found that the primary endpoint of death, nonfatal myocardial infarction, and repeat revascularization were 5.1 ...
While coronary artery disease is more prevalent in men than women, atherosclerosis of the cerebral arteries and strokes equally ... has demonstrated reduced rates of postoperative stroke and mortality compared to traditional on-pump coronary revascularization ... Flora GC, Baker AB, Loewenson RB, Klassen AC (November 1968). "A comparative study of cerebral atherosclerosis in males and ...
Symptomatic Cavernous Sinus Aneurysms: Management and Outcome After Carotid Occlusion and Selective Cerebral Revascularization ...
The aim of this study was to determine the outcome of carotid occlusion with selective cerebral revascularization in patients ... Moderate-risk patients underwent cerebral revascularization followed by proximal carotid occlusion. Low-risk patients underwent ... The patient then underwent cerebral revascularization followed by carotid occlusion, with restored baseline CBF postoperatively ... Symptomatic Cavernous Sinus Aneurysms: Management and Outcome After Carotid Occlusion and Selective Cerebral Revascularization ...
The Effect of Preoperative Smoking on Cerebral Blood Flow and Cognitive Improvement after Carotid Revascularization - cns.org
Smokings effect on cerebral blood flow and cognitive function following carotid endarterectomy has ... The Effect of Preoperative Smoking on Cerebral Blood Flow and Cognitive Improvement after Carotid Revascularization. ... Carotid revascularization is still indicated to reduce future risk of stroke in both smoking and nonsmoking patients with ... Cerebral blood flow in the internal carotid artery (ICA) was obtained using Quantitative Magnetic Resonance Angiography (qMRA ...
O-021 Significant improvement in patient functional outcome after revascularization of the middle cerebral artery by mechanical...
No Added Benefit From Revascularization in Low-Risk CAS
... after the ESCT-2 trial showed no benefit from adding revascularization. ... MUNICH - Adding carotid revascularization to optimized medical therapy (OMT) does not appear to offer a clinical benefit in ... Revascularization included CEA and coronary artery stenting in selected patients and was recommended to be performed within 2 ... Overall, the hazard ratio between revascularization plus OMT vs OMT alone was 0.96 (95% CI, 0.53 - 1.76, P = .90). ...
Color Atlas of Cerebral Revascularization: Anatomy, Techniques, Clinical Cases First Edition PDF » Free PDF EPUB Books
Color Atlas of Cerebral Revascularization: Anatomy, Techniques, Clinical Cases First Edition PDF For Free. This Website... ... Color Atlas of Cerebral Revascularization focuses on cerebral bypass techniques pioneered by leading surgeons at the world- ... Color Atlas of Cerebral Revascularization: Anatomy, Techniques, Clinical Cases First Edition PDF Free PDF. ... Color Atlas of Cerebral Revascularization: Anatomy, Techniques, Clinical Cases First Edition PDF Free Download. A highly- ...
Neurology | Johns Hopkins Medicine
Progressive Cerebral Ischemia and Intracerebral Hemorrhage after Indirect Revascularization for a Patient with Cerebral...
T1 - Progressive Cerebral Ischemia and Intracerebral Hemorrhage after Indirect Revascularization for a Patient with Cerebral ... Progressive Cerebral Ischemia and Intracerebral Hemorrhage after Indirect Revascularization for a Patient with Cerebral ... Progressive Cerebral Ischemia and Intracerebral Hemorrhage after Indirect Revascularization for a Patient with Cerebral ... Progressive Cerebral Ischemia and Intracerebral Hemorrhage after Indirect Revascularization for a Patient with Cerebral ...
Medscape | Neurosurg Focus - Content Listing
Cerebral Revascularization After the Carotid Occlusion Surgery Study Which patients benefit most from cerebral ... Cerebral Venous Sinus Thrombosis After Vestibular Schwannoma Surgery In this review, the authors report on their management ... experience of postoperative cerebral venous sinus thrombosis, an infrequent complication after vestibular schwannoma surgery. ...
mehdorn - Search Results - PubMed
Find Research outputs - Mayo Clinic
Cerebral angiography in posterior fossa revascularization. Boulos, R. S., Patel, S., Mehta, B. & Jack, C., Dec 1 1985, In: ... Cerebral magnetic resonance image synthesis. Bobman, S. A., Riederer, S. J., Lee, J. N., Suddarth, S. A., Wang, H. Z., Drayer, ... Cerebral Venous Sinus Thrombosis in Behçets Disease: The authors reply. Harper, C. M. & ONeill, B. P., Dec 1 1985, In: Mayo ... Cerebral abscess in leukaemia: an unusual presentation of a rare complication.. Patterson, M. C., Bunce, I. H. & Eadie, M. J., ...
Continuous Positive Airway Pressure (CPAP) in Patients With Acute Coronary Syndrome and Obstructive Sleep Apnea (OSA) - Full...
Moyamoya hos barn | Tidsskrift for Den norske legeforening
Konvensjonell cerebral angiografi med fremstilling av både a. carotis interna, a. carotis externa og a. vertebralis er fortsatt ... Surgical revascularisation for childhood moyamoya. Childs Nerv Syst 2012; 28: 1041-8. [PubMed][CrossRef] ... Regional cerebral blood flow, clinical manifestations, and age in children with moyamoya disease. Stroke 1987; 18: 906-10. [ ... Fung LW, Thompson D, Ganesan V. Revascularisation surgery for paediatric moyamoya: a review of the literature. Childs Nerv Syst ...
Successful Superficial Temporal Artery-Anterior Cerebral Art... : Operative Neurosurgery
Although some patients with moyamoya disease need revascularization in the anterior ce ... Although some patients with moyamoya disease need revascularization in the anterior cerebral artery (ACA) territory, there are ... We performed simultaneous STA-ACA and STA-middle cerebral artery direct bypasses in 7 patients with moyamoya disease using the ... This method of STA-ACA bypass provides successful and reliable direct revascularization of the ACA territory in patients with ...
Hyperbaric Oxygen Therapy in Treating Patients With Radiation Necrosis of the Brain
Cerebral revascularization study: Five patients from each arm are randomly selected to. undergo perfusion MRI before treatment ... Determine, preliminarily, the effect of HBOT on cerebral revascularization using. perfusion MRI in these patients.. - Determine ... therapy to determine the proportion of cerebral neovascularization in each arm.. Patients are evaluated during study by ...
Headache and pain
Robert Quigley | CTSNet
TCT: Hybrid Revascularization Safe Mid-Term But Not Better ... Yet | MedPage Today
The 12-month freedom from major adverse cardiac and cerebral events events was 88.6% compared with 88.0% , and 86.8%, ... TCT: Hybrid Revascularization Safe Mid-Term But Not Better ... Yet. - Long-term outcomes not addressed in pilot trial. by ... "Hybrid revascularization is something we talked about 2 decades ago. Because we knew -- before drug-eluting stents came along ... Source Reference: Ganyukov V, et al "HREVS: A randomized trial of PCI vs CABG vs hybrid revascularization in patients with ...
Comparison Three vs Twelve Months of Dual Anti-Platelet Therapy After Stent Implantation | Clinical Research Trial Listing (...
... major adverse cardiovascular and cerebral events (MACCE),target lesion revascularization (TLR),target lesion failure(TLF),ST at ... cerebral vascular accident (CVA) and major bleeding (academic research consortium [ARC] definition and GUSTO definition) at 18 ... 2 years and 3 years after index procedure.The primary study endpoint is Net Adverse Clinical and Cerebral Events (NACCE), a ...
Frontiers | Transit Time Measurement in Indicator Dilution Curves: Overcoming the Missing Ground Truth and Quantifying the Error
2016). Aging alters the dampening of pulsatile blood flow in cerebral arteries. J. Cereb. Blood flow Metab. 36, 1519-1527. doi ... a rapid response is needed in the operating theater where revascularization should restore the vascular function (Lawton and ... Choi, D. (1990). Cerebral hypoxia: some new approaches and unanswered questions. J. Neurosci. 10, 2493-2501. doi: 10.1523/ ... The volume flow is chosen based on reports on physiological values of cerebral arteries of this size. Thereby, a linear ...
Frontiers | Recent Advances in Endothelial Progenitor Cells Toward Their Use in Clinical Translation
Sphingosine kinase 1 expressed by endothelial colony-forming cells has a critical role in their revascularization activity. ... Erythropoietin pretreatment of transplanted endothelial colony-forming cells enhances recovery in a cerebral ischemia model by ... Therapeutic benefit of a combined strategy using erythropoietin and endothelial progenitor cells after transient focal cerebral ... In fact, both vasculogenesis and angiogenesis may potentially have a synergistic role in postnatal revascularization. ...
Coronary Artery Bypass Grafting: Practice Essentials, Background, Indications
2014 ESC/EACTS Guidelines on myocardial revascularization: The Task Force on Myocardial Revascularization of the European ... Adverse cerebral outcomes after coronary bypass surgery. Multicenter Study of Perioperative Ischemia Research Group and the ... Complete revascularization with arterial grafting to a non-LAD coronary system is indicated in patients with a reasonable life ... Myocardial revascularization with cardiopulmonary bypass. Cohn LH, ed. Cardiac Surgery in the Adult. 3rd ed. New York: McGraw- ...
Medical Science Monitor | Comparison of Clinical Outcomes in Patients with ST Elevation Myocardial Infarction with Percutaneous...
... any revascularization, and stent thrombosis. However, there was no significant difference in short-term adverse clinical ... Any revascularization was defined as a second PCI or coronary bypass surgery in the target vessel. Stent thrombosis was ... the presence of a new focal neurological deficit with signs or symptoms persisting for 24 h and in the presence of cerebral ... MACE was defined as the composite of death, myocardial infarction, and any revascularization. Cardiac death was diagnosed as ...
Browse | jns Journals
Stroke 2.0: Novel methods of Detection, Selection and Intervention in Acute Cerebral Ischemia - Clinical Correlations
Retrospective multicenter study of Solitaire FR for revascularization in the treatment of acute ischemic stroke. Stroke. 2012; ... cerebral blood flow (CBF) and cerebral blood volume (CBV). Both the infarct core and penumbra have a prolonged MTT, but the ... Stroke 2.0: Novel methods of Detection, Selection and Intervention in Acute Cerebral Ischemia. June 29, 2016. ... Oxidative stress, decreased pH, and increased extracellular calcium and magnesium-which all occur in cerebral ischemia-activate ...
OUH - Publications
Patient selection for intra-arterial cerebral revascularization in acute ischemic stroke. Acta Neurol Scand Suppl (196), 65-8. ... Cerebral Venous Thrombosis. Semin Thromb Hemost, 48 (3), 309-317. DOI 10.1055/s-0042-1742738, PubMed 35170006 ... Cerebral microemboli and cognitive impairment. J Neurol Sci, 203-204, 211-4. DOI 10.1016/s0022-510x(02)00293-9, PubMed 12417386 ... Cerebral venous thrombosis with venous infarction. Tidsskr Nor Laegeforen, 132 (15), 1757. DOI 10.4045/tidsskr.12.0186, PubMed ...
Dual-Energy CT: What the Neuroradiologist Should Know | SpringerLink
Mixed images (c) of DECTA revealed a right middle cerebral artery (MCA) aneurysm. VNC (e) shows the hematoma and the denser ... The role of dual energy CT in differentiating between brain hemorrhage and contrast medium after mechanical revascularisation ... Ma R, Liu C, Deng K, Song SJ, Wang DP, Huang L. Cerebral artery evaluation of dual energy CT angiography with dual source CT. ... In the diagnostic work-up of a suspected cerebral sinus thrombosis, CTV is one of the diagnostic options. As with CTA, MPR and ...
Moyamoya Disease | Penn State Health
The surgical treatment for moyamoya is cerebral revascularization with direct cerebral bypass. ... The Penn State Cerebral Revascularization Program is one of a few programs in the country that specialize in the treatment of ... The experts at Penn State Health Cerebral Revascularization and Moyamoya Program are internationally recognized leaders in the ... Patients are evaluated and treated in our Cerebral Revascularization Program in the Department of Neurosurgery. ...
Michael Zhang's Profile | Stanford Profiles
... middle cerebral, and posterior cerebral arteries, with major venous drainage to the superior sagittal sinus. In case 2, imaging ... In each of these cases, revascularization surgery involved direct anastomosis of the STA to an M4 branch of the MCA. ... Contralateral acute vascular occlusion following revascularization surgery for moyamoya disease JOURNAL OF NEUROSURGERY Sussman ... Microscope use may be associated with lower rates of intraoperative cerebral edema and some cerebrovascular complications, but ...
Effects of Surgery and Antiplatelet Therapy in Ten-Year Follow-Up from the Registry Study of Research Committee on Moyamoya...
keywords = "Stroke prevention, cerebral infarction, intracerebral hemorrhage, revascularization, thrombosis",. author = " ... In recent cases, the rate of subsequent cerebral hemorrhage was much higher in the hemorrhagic group (10.9 ± 3.3%/5 years) than ... In recent cases, the rate of subsequent cerebral hemorrhage was much higher in the hemorrhagic group (10.9 ± 3.3%/5 years) than ... In recent cases, the rate of subsequent cerebral hemorrhage was much higher in the hemorrhagic group (10.9 ± 3.3%/5 years) than ...
Middle cerebrMoyamoyaOcclusionAneurysmsBypassInfarctionPerfusionIschemicIntracranialInternal carotiStrokeIndirect revascularizationSurgicalPatients2019CoronaryAnteriorVasomotor reactivityIschemiaReactivityThrombosisHemispheresMyocardialCarotid arteryOxygenationHemisphereAneurysmCardiacAnastomosisCognitive functionTechniquesProceduresBenefit
- One patient in the moderate-risk group developed right hemiparesis and a left posterior middle cerebral artery infarction by CT 2 months after carotid occlusion. (ajnr.org)
- We performed simultaneous STA-ACA and STA-middle cerebral artery direct bypasses in 7 patients with moyamoya disease using the following strategies: creating 2 separate craniotomies for the 2 bypasses, dissecting a long STA graft and securing a recipient ACA around the bregma for the STA-ACA bypass, and using loose stitches at the anastomoses. (lww.com)
- The ivy sign was most frequently encountered in association with Suzuki stage III or IV disease in all vascular territories, including the anterior cerebral artery (53.7%), middle cerebral artery (56.3%), and posterior cerebral artery (47.5%) territories. (thejns.org)
- With regard to middle cerebral artery (MCA) territory occlusions/infarcts, the most commonly affected territory, the Alberta stroke program early CT score (ASPECTS) allows for an effective, semi-objective measure of the degree of infarct. (appliedradiology.com)
- PURPOSE: This study aims to evaluate the safety and efficacy of flow diverters (FDs) in the treatment of middle cerebral artery (MCA) aneurysms and share the follow-up (F/U) results. (bvsalud.org)
- A (rs112735431) after superficial temporal artery-middle cerebral artery anastomosis. (cdc.gov)
- Moyamoya er en sjelden sykdom som rammer hjernens blodårer hos barn og unge voksne. (tidsskriftet.no)
- Moyamoya er en kronisk og progressiv sykdom, karakterisert av gradvis stenosering/okklusjon av den intrakraniale delen av arteria carotis interna samt proksimale segment av a. cerebri anterior, a. cerebri media og (sjeldnere) blodårene i bakre kretsløp. (tidsskriftet.no)
- Kollateralnettverket sees ved konvensjonell cerebral angiografi hvor det minner om en «sky av røyk» ( moyamoya på japansk). (tidsskriftet.no)
- Although some patients with moyamoya disease need revascularization in the anterior cerebral artery (ACA) territory, there are few reports on direct bypass in the ACA territory because of the difficult surgical technique. (lww.com)
- This method of STA-ACA bypass provides successful and reliable direct revascularization of the ACA territory in patients with moyamoya disease. (lww.com)
- The definitive treatment for moyamoya is direct cerebral bypass. (pennstatehealth.org)
- The Penn State Cerebral Revascularization Program is one of a few programs in the country that specialize in the treatment of moyamoya with direct bypass. (pennstatehealth.org)
- The surgical treatment for moyamoya is cerebral revascularization with direct cerebral bypass. (pennstatehealth.org)
- The experts at Penn State Health Cerebral Revascularization and Moyamoya Program are internationally recognized leaders in the treatment of complex cerebrovascular disease, including direct cerebral bypass. (pennstatehealth.org)
- Conclusions Our results suggest revascularization surgery may suppress recurrent ischemic attacks in patients with moyamoya disease. (elsevier.com)
- Moyamoya vasculopathy is a rare chronic cerebrovascular disorder characterized by the stenosis of the terminal branches of the internal carotid arteries and the proximal tracts of anterior and middle cerebral arteries. (elsevier.com)
- We discussed the technical aspects and the therapeutical implications of each procedure, providing a current state-of-the-art overview on the limits and pitfalls of indirect revascularization in the treatment of moyamoya vasculopathy. (elsevier.com)
- We evaluated outcomes in patients with symptomatic cavernous sinus aneurysms in whom clinical BTO was normal, who underwent carotid occlusion with selective bypass surgery guided by physiologic BTO using quantitative cerebral blood flow (CBF) analysis by means of stable xenon-enhanced CT. (ajnr.org)
- Moderate-risk patients underwent cerebral revascularization followed by proximal carotid occlusion. (ajnr.org)
- Most centers now manage these lesions with endovascular carotid occlusion with or without cerebral revascularization. (ajnr.org)
- As a result, these technologies have not been universally accepted, leaving some centers to advocate prophylactic extracranial-intracranial revascularization in all patients undergoing therapeutic carotid occlusion to minimize the risk of postocclusion ischemic stroke ( 16 - 17 ). (ajnr.org)
- Abstract The authors report a case of isolated homonymous hemianopsia secondary to embolic occlusion of the posterior cerebral artery. (symptoma.com)
- The benefit of mechanical thrombectomy (MT) compared to IV thrombolysis (tPA) for the treatment of an acute posterior cerebral artery (PCA) occlusion is uncertain. (symptoma.com)
- Reperfusion past the target arterial occlusion and into the distal arterial bed and terminal branches, in conjunction with recanalization of the target arterial occlusion, demonstrates flow restoration or revascularization. (jointcommission.org)
- Implementing optimally efficient and safe strategies for occlusion or revascularization of arterial or venous structures requires the knowledge of collateral circulation covered in this volume. (canali-medias.net)
- Endovascular treatment of posterior cerebral artery aneurysms. (symptoma.com)
- Revascularization for complex intracranial aneurysms. (elsevier.com)
- Dive into the research topics of 'Revascularization for complex intracranial aneurysms. (elsevier.com)
- Dissecting aneurysms of the intracranial arteries are exceedingly rare vascular lesions that can produce acute cerebral or brain stem infarction in young healthy adults. (who.int)
- A highly-anticipated addition to Thieme's classic color atlas collection, Color Atlas of Cerebral Revascularization focuses on cerebral bypass techniques pioneered by leading surgeons at the world-renowned Barrow Neurological Institute in Phoenix, Arizona. (lib-ebooks.com)
- Patients can go on to live normal, healthy lives following direct cerebral bypass. (pennstatehealth.org)
- 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). (bvsalud.org)
- Adults aged 16 years or older undergoing valve or combined coronary artery bypass graft and valve surgery at one of three UK cardiac centers (Bristol, Hull, or Leicester) are randomly allocated in a 1:1 ratio to either a standard algorithm for optimizing tissue oxygenation during CPB that includes a fixed transfusion threshold, or a patient-specific algorithm that incorporates cerebral NIRS monitoring and a restrictive red blood cell transfusion threshold. (researchprotocols.org)
- The rate of recurrent stroke, including cerebral infarction and hemorrhage but not transient ischemic attack and seizure, was evaluated with Kaplan-Meier analysis. (elsevier.com)
- The recurrence rate of cerebral infarction was lower in the surgery group (1.8 ±.9%/5 years) than in the nonsurgery group (3.8 ± 2.2%/5 years). (elsevier.com)
- In the ischemic group, the rate of cerebral infarction was not significantly different between the antiplatelet subgroup and the non-antiplatelet subgroup, whereas the rate of cerebral hemorrhage was higher in the non-antiplatelet subgroup than in the antiplatelet subgroup. (elsevier.com)
- This case presents a departure from the presentation of a traditional posterior circulation cerebral infarction most likely as a result of a rare vascular anomaly rooted in an aberrant embryological process. (symptoma.com)
- The Thrombolysis in Cerebral Infarction (TICI) Reperfusion Grade is used to measure cerebral reperfusion. (jointcommission.org)
- However, acute myocardial infarction is treated with antiplatelet and antithrombin agents, as well as prompt revascularization via either primary angioplasty or pharmacologic thrombolysis. (medscape.com)
- Determine, preliminarily, the effect of HBOT on cerebral revascularization using perfusion MRI in these patients. (knowcancer.com)
- Cerebral revascularization study: Five patients from each arm are randomly selected to undergo perfusion MRI before treatment and within 1 week after completion of study therapy to determine the proportion of cerebral neovascularization in each arm. (knowcancer.com)
- In recent cases, the rate of subsequent cerebral hemorrhage was much higher in the hemorrhagic group (10.9 ± 3.3%/5 years) than in the ischemic group (2.0 ±.9%/5 years). (elsevier.com)
- Three patients went into transient asystole during the procedure, and 2 of these patients had symptomatic bradycardia with ischemic cerebral changes, 1 of which required permanent pacemaking. (duke.edu)
- New data from the Global COVID-19 Stroke Registry suggest higher rates of intracranial bleeding complications and worse outcomes of stroke revascularization in acute ischemic stroke (AIS) complicated by COVID-19. (medscape.com)
- Although surgical revascularization does not significantly change the underlying pathogenic mechanisms, it plays a pivotal role in the management of affected individuals, allowing to decrease the risk of ischemic and hemorrhagic complications. (elsevier.com)
- Arranging complications from least to most severe according to the reduction in health utility scores resulted in the following order: peripheral vascular disease, other heart diseases, transient ischemic attack, cerebral vascular accident, nonpainful diabetic neuropathy, congestive heart failure, dialysis, hemiplegia, painful neuropathy, and amputation. (cdc.gov)
- In the past, these lesions were often treated by means of open cervical carotid artery sacrifice, with or without cerebral revascularization, or by open intracranial approaches ( 1 - 4 ). (ajnr.org)
- Microsurgical revascularization to improve intracranial circulation. (bvsalud.org)
- This study aimed to determine and compare the patient radiation dose of intracranial aneurysm patients undergoing cerebral angiography using the conventional and high kV techniques in a retrospective study and a phantom study. (bvsalud.org)
- A total of 122 cases (61 cases with conventional technique and 61 cases with high kV technique) of intracranial aneurysm patients, who underwent cerebral angiographic procedure and met the inclusion criteria, were recruited. (bvsalud.org)
- Cerebral blood flow in the internal carotid artery (ICA) was obtained using Quantitative Magnetic Resonance Angiography (qMRA). (cns.org)
- Pre-operative cerebral hemodynamics and age are independent predictors of cognitive performance changes after carotid endarterectomy in patients with high-grade symptomatic internal carotid artery stenosis. (neurologyadvisor.com)
- Carotid revascularization is still indicated to reduce future risk of stroke in both smoking and nonsmoking patients with significant stenosis. (cns.org)
- MUNICH - Adding carotid revascularization to optimized medical therapy (OMT) does not appear to offer a clinical benefit in patients with significant carotid stenosis and a low to intermediate 5-year risk of stroke, suggests a planned interim analysis of ECST-2 . (medscape.com)
- In other words, "there was no evidence of benefit at 2 years from additional carotid revascularization" in patients with carotid stenosis who had a low to intermediate predicted stroke risk, said study presenter Paul Nederkoorn, MD, PhD, Department of Neurology, Amsterdam UMC, University of Amsterdam in the Netherlands. (medscape.com)
- Future work will include the design and validation of a novel stroke risk prediction tool that will include MRI plaque imaging, and will allow individualized patient selection for revascularization, as well as a cost-effectiveness analysis, he noted. (medscape.com)
- The current trial was therefore established to test the hypothesis that patients with carotid stenosis ≥50% and a low to intermediate risk of stroke will not benefit from additional carotid revascularization on top of optimized medical therapy. (medscape.com)
- Each procedure is presented with intraoperative photographs and exquisite anatomical illustrations to help surgeons master the complex microsurgical anatomy and subtle surgical technique used in managing the potential onset and condition of stroke and other causes of cerebral ischemia. (lib-ebooks.com)
- It can cause both ischaemic stroke and cerebral haemorrhage. (tidsskriftet.no)
- A recently published 21 month study equipped ambulances with an onboard CT scanner, blood testing (for INR, CBC and glucose), stroke-trained neurologist, radiology technician, and paramedic, allowing the start of tPA therapy en-route to a hospital 13 . (clinicalcorrelations.org)
- Stroke affecting the posterior cerebral artery may also affect the brainstem or cerebellum resulting in slurred and slow speech . (symptoma.com)
- There are no reports on CPA patients who have shown cerebral hemorrhage after indirect revascularization. (elsevier.com)
- Cases with severe stenosis of the proximal arteries may benefit from indirect revascularization. (elsevier.com)
- In this study, we reviewed the pertinent literature and analyzed the advantages, disadvantages, and pitfalls of the most relevant indirect revascularization techniques. (elsevier.com)
- Treatment consists of antiplatelet drugs and surgical revascularisation. (tidsskriftet.no)
- The Cardiothoracic Surgical Network's Hybrid Coronary Revascularization Trial funded by the NIH should give the more definitive answer, said David Cohen, MD, of Saint Luke's Mid-America Heart Center in America Heart Institute in Kansas City, Missouri, a press conference discussant. (medpagetoday.com)
- Nearly 10% of the hybrid group (five patients) required conversion to conventional on-pump CABG with a median sternotomy for surgical technical reasons (two cases) or due to hemodynamic instability following grafting in the absence of other lesion revascularization (three cases). (medpagetoday.com)
- The team conducted a prospective, multicenter, open clinical trial in which patients with both symptomatic and asymptomatic atherosclerotic carotid stenosis were randomly assigned to revascularization plus OMT or OMT alone. (medscape.com)
- Which patients benefit most from cerebral revascularization for symptomatic nonmoyamoya vasculopathy? (medscape.com)
- Ganyukov V, et al "HREVS: A randomized trial of PCI vs CABG vs hybrid revascularization in patients with coronary artery disease" TCT 2017. (medpagetoday.com)
- Patients who will experience little benefit from coronary revascularization are also excluded. (medscape.com)
- A multidisciplinary heart team approach that emphasizes shared decision making in patients with complex CAD is essential to offer the patient the best chance of a successful revascularization strategy. (medscape.com)
- Patients are evaluated and treated in our Cerebral Revascularization Program in the Department of Neurosurgery. (pennstatehealth.org)
- Thirty-six patients had a total of 37 COICA revascularization procedures. (duke.edu)
- CONCLUSIONS: Bradycardia associated with angioplasty of the carotid bulb was observed in the majority of patients receiving COICA revascularization. (duke.edu)
- Yet, the safety and efficacy of revascularization treatments in AIS patients with COVID-19 remains unclear. (medscape.com)
- In our study, we did not find delays to revascularization treatment previously described in patients with AIS and COVID-19 and proposed as a factor contributing to the worse clinical outcomes," the researchers write. (medscape.com)
- They caution that the study design did not allow for direct conclusions to be made on the effectiveness of revascularization treatments in COVID-19 patients. (medscape.com)
- Importantly, they note, the "relatively large margin of benefit of revascularization treatments, in particular of EVT, and the rather small absolute numbers of symptomatic hemorrhage in patients with AIS and COVID-19 make it likely that revascularization treatments remain beneficial for these patients. (medscape.com)
- Patients whose cerebral vasomotor reactivity ipsilateral to the stenotic artery was more compromised prior to CEA had greater improvement on neuropsychological testing following surgery. (neurologyadvisor.com)
- Cerebral hemodynamics is suggested to contribute to cognitive dysfunction in patients with severe carotid artery disease and CEA may result in the improvement in cognitive performance," concluded the researchers. (neurologyadvisor.com)
- Therefore, a rapid response is needed in the operating theater where revascularization should restore the vascular function ( Lawton and Lang, 2019 ). (frontiersin.org)
- Predictors of cognitive functioning after carotid revascularization [published online August 28, 2019]. (neurologyadvisor.com)
- Hybrid procedures were minimally-invasive, off-pump revascularization of the left anterior descending artery with the left internal mammary artery followed by consecutive percutaneous coronary intervention (PCI) in the rest of the arteries, done in two stages within 3 days. (medpagetoday.com)
- Successful Superficial Temporal Artery-Anterior Cerebral Art. (lww.com)
- In selected cases, high revascularization rates following microsurgical thromboembolectomy in the anterior circulation were reported. (symptoma.com)
- In selected cases, high revascularization rates following microsurgical thrombembolectomy in the anterior circulation were reported. (symptoma.com)
- Response of hemostatic markers and cerebral vasomotor reactivity to experimental endotoxemia in healthy subjects and those with diabetes, hypertension or current smoking. (cureus.com)
- Cerebral hemodynamics was assessed via cerebral vasomotor reactivity to hypercapnia measured with transcranial Doppler ultrasonography as measured by the breath-holding index (BHI). (neurologyadvisor.com)
- The investigators reported a strong inverse correlation between baseline BHI on the stenotic side and ipsilateral change in cerebral vasomotor reactivity. (neurologyadvisor.com)
- We previously reported a patient with cerebral proliferative angiopathy (CPA) who showed cerebral ischemia in resting and acetazolamide-stressed N-isopropyl-p-[ 123 I] iodoamphetamine single-photon emission computed tomography ( 123 I-IMP-SPECT). (elsevier.com)
- Objectives: The effect of cortical spreading depression (CSD) on extracellular K + concentrations ([K + ] e ), cerebral blood flow (CBF), mitochondrial NADH redox state and direct current (DC) potential was studied during normoxia and three pathological conditions: hypoxia, after NOS inhibition by L-NAME and partial ischemia. (openneurologyjournal.com)
- 123 I-IMP-SPECT showed more severely impaired cerebral blood flow (CBF) and cerebrovascular reactivity over the affected hemisphere. (elsevier.com)
- In this review, the authors report on their management experience of postoperative cerebral venous sinus thrombosis, an infrequent complication after vestibular schwannoma surgery. (medscape.com)
- Consciousness is lost when the function of both cerebral hemispheres or the brainstem reticular activating system is compromised. (mhmedical.com)
- Syncope is loss of consciousness due to reduced blood flow to both cerebral hemispheres or the brainstem . (mhmedical.com)
- Bruna Vilar Soares da Silva1 predominance of myocardial revascularization surgeries. (bvsalud.org)
- 20% were randomly assigned to OMT alone or OMT plus revascularization with carotid endarterectomy (CEA) or carotid artery stenting. (medscape.com)
- The aim of the patient-specific cerebral oxygenation monitoring as part of an algorithm to reduce transfusion during heart valve surgery (PASPORT) trial is to determine whether the addition of NIRS to CPB management algorithms can prevent cognitive decline, postoperative organ injury, unnecessary transfusion, and reduce health care costs. (researchprotocols.org)
- The oculomotor nuclear complex (ONC) and the initial parts of the nerve fibers are located within the tegmentum of the midbrain, which is in turn situated at the level of the tentorial notch, where it is surrounded by parts of the diencephalon, cerebellum, and cerebral hemisphere (Parent and Carpenter, 1995). (neurosurgicalatlas.com)
- This study confirms that the implementation of a high kV technique in routine cerebral angiography for aneurysm diagnosis provides an effective reduction in radiation dose. (bvsalud.org)
- The 12-month freedom from major adverse cardiac and cerebral events events was 88.6% compared with 88.0% , and 86.8%, respectively among the arms, none of which differed significantly in the HREV trial . (medpagetoday.com)
- Se realiza mediante la unión de dos arterias (por anastomosis directa o por injerto) o por trasplante autólogo libre de tejido muy vascularizado en la superficie del cerebro. (bvsalud.org)
- Smoking's effect on cerebral blood flow and cognitive function following carotid endarterectomy has not been previously examined. (cns.org)
- Novel techniques of revascularization for occlusive vascular diseases in the brachiocephalic and cerebral vasculature are expanding and revolutionizing the field. (canali-medias.net)
- The standard cerebral angiographic procedure using the conventional and high kV techniques was performed following the standard protocol. (bvsalud.org)
- Revascularisation procedures should be considered in addition to trapping of the main vertebral segment if PICA is involved in the trapped segment. (who.int)
- Nederkoorn suggested, however, that factors such as plaque ulceration, and patient characteristics and comorbidities, might influence the risk-benefit ratio for revascularization. (medscape.com)