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https://www.readbyqxmd.com/read/28937325/revascularization-of-the-upper-posterior-circulation-with-the-anterior-temporal-artery-an-anatomical-feasibility-study
#1
Ali Tayebi Meybodi, Michael T Lawton, Dylan Griswold, Pooneh Mokhtari, Andre Payman, Halima Tabani, Sonia Yousef, Arnau Benet
OBJECTIVE In various disease processes, including unclippable aneurysms, a bypass to the upper posterior circulation (UPC) including the superior cerebellar artery (SCA) and posterior cerebral artery (PCA) may be needed. Various revascularization options exist, but the role of intracranial (IC) donors has not been scrutinized. The objective of this study was to evaluate the anatomical feasibility of utilizing the anterior temporal artery (ATA) for revascularization of the UPC. METHODS ATA-SCA and ATA-PCA bypasses were performed on 14 cadaver specimens...
September 22, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28927219/internal-maxillary-artery-to-m2-middle-cerebral-artery-bypass-with-modified-superficial-temporal-artery-graft-3-dimensional-operative-video
#2
Arnau Benet, Ali Tayebi Meybodi, Xuequan Feng, Michael T Lawton
No abstract text is available yet for this article.
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28927217/surgical-technique-for-high-flow-internal-maxillary-artery-to-middle-cerebral-artery-bypass-using-a-superficial-temporal-artery-interposition-graft
#3
Xuequan Feng, Ali Tayebi Meybodi, Jordina Rincon-Torroella, Ivan H El-Sayed, Michael T Lawton, Arnau Benet
BACKGROUND: Extracranial-to-intracranial high-flow bypass often requires cranial, cervical, and graft site incisions. The internal maxillary artery (IMA) has been proposed as a donor to decrease invasiveness, but its length is insufficient for direct intracranial bypass. We report interposition of a superficial temporal artery (STA) graft for high-flow IMA to middle cerebral artery (MCA) bypass using a middle fossa approach. OBJECTIVE: To assess the feasibility of an IMA-STA graft-MCA bypass using a new middle fossa approach...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28927214/direct-anastomosis-using-occipital-artery-for-additional-revascularization-in-moyamoya-disease-after-combined-superficial-temporal-artery-middle-cerebral-artery-and-indirect-bypass
#4
Ken Kazumata, Hiroyasu Kamiyama, Hisayasu Saito, Katsuhiko Maruichi, Masaki Ito, Haruto Uchino, Naoki Nakayama, Satoshi Kuroda, Kiyohiro Houkin
BACKGROUND: The posterior cerebral artery (PCA) is involved in approximately 30% of moyamoya disease (MMD) cases. However, there have been insufficient reports describing revascularization techniques in the posterior portion of the brain, particularly of direct anastomosis. OBJECTIVE: To perform a technical assessment in patients with MMD who underwent either occipital artery (OA)-PCA bypass or OA-middle cerebral artery (MCA) bypass. METHODS: A total of 428 revascularization procedures in 368 patients were retrospectively assessed by reviewing clinical charts and radiological data...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28922885/patient-selection-and-clinical-efficacy-of-urgent-superficial-temporal-artery-middle-cerebral-artery-bypass-in-acute-ischemic-stroke-using-advanced-magnetic-resonance-imaging-techniques
#5
Hyun-Seok Park, Sang-Hyeon Kim, Hyun-Wook Nah, Jae-Hyung Choi, Dae-Hyun Kim, Myong-Jin Kang, Jae-Kwan Cha, Jae-Taeck Huh
BACKGROUND: Selected patients with acute ischemic stroke might benefit from superficial temporal artery-middle cerebral artery (STA-MCA) bypass, but the indications for urgent STA-MCA bypass are unknown. OBJECTIVE: To report our experiences of urgent STA-MCA bypass in patients requiring urgent reperfusion who were ineligible for other reperfusion therapies, using advanced magnetic resonance imaging (MRI) techniques. METHODS: The inclusion criteria for urgent STA-MCA bypass were as follows: acute infarct volume <70 mL with a ratio of perfusion/diffusion lesion volume ≥1...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28921308/pregnancy-and-delivery-in-moyamoya-vasculopathy-experience-of-a-single-european-institution
#6
Güliz Acker, Marcus Czabanka, Peter Schmiedek, Peter Vajkoczy
Moyamoya vasculopathy (MMV) is a stenoocclusive cerebrovascular disease frequently affecting adolescent females. Thus, the management of pregnancy is of major interest for physicians dealing with MMV patients. However, clinical data concerning pregnant MMV patients is lacking. Our aim was to analyze the course of pregnancy in our European MMV patient cohort. We retrospectively identified MMV patients with a history of pregnancy who were treated in our institution. We analyzed demographic data, clinical symptoms, treatment, and detailed history of pregnancies...
September 18, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28916673/radiographic-and-clinical-brain-infarcts-in-cardiac-and-diagnostic-procedures-a-systematic-review-and-meta-analysis
#7
Sung-Min Cho, Abhishek Deshpande, Vinay Pasupuleti, Adrian V Hernandez, Ken Uchino
BACKGROUND AND PURPOSE: The incidence of periprocedural brain infarcts varies among cardiovascular procedures. In a systematic review, we compared the ratio of radiographic brain infarcts (RBI) to strokes and transient ischemic attacks across cardiac and vascular procedures. METHODS: We searched MEDLINE and 5 other databases for brain infarcts in aortic valve replacement, coronary artery bypass grafting, cardiac catheterization, and cerebral angiogram through September 2015...
September 15, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28912778/neuroprotective-effects-of-annexin-a1-tripeptide-after-deep-hypothermic-circulatory-arrest-in-rats
#8
Zhiquan Zhang, Qing Ma, Bijal Shah, G Burkhard Mackensen, Donald C Lo, Joseph P Mathew, Mihai V Podgoreanu, Niccolò Terrando
Resolution agonists, including lipid mediators and peptides such as annexin A1 (ANXA1), are providing novel approaches to treat inflammatory conditions. Surgical trauma exerts a significant burden on the immune system that can affect and impair multiple organs. Perioperative cerebral injury after cardiac surgery is associated with significant adverse neurological outcomes such as delirium and postoperative cognitive dysfunction. Using a clinically relevant rat model of cardiopulmonary bypass (CPB) with deep hypothermic circulatory arrest (DHCA), we tested the pro-resolving effects of a novel bioactive ANXA1 tripeptide (ANXA1sp) on neuroinflammation and cognition...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28904828/usefulness-of-dural-surface-tracing-of-the-cortical-vessels-with-indocyanine-green-videoangiography-just-prior-to-dural-opening-for-various-cerebrovascular-diseases
#9
Naoki Otani, Kojiro Wada, Terushige Toyooka, Satoru Takeuchi, Arata Tomiyama, Kentaro Mori
BACKGROUND: Indocyanine green (ICG) videoangiography can be used to delineate the locations of the cortical vessels just prior to dural opening, allowing safe and optimal dural opening. The present clinical series demonstrates the adjunct use of ICG videoangiography to optimize dural opening for the treatment of various cerebrovascular diseases. METHODS: A total of 45 patients underwent surgery for superficial temporal artery-middle cerebral artery bypass (40), arteriovenous malformation (2), and dural arteriovenous fistula (3) between January 2012 and December 2016...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28903884/successful-outcome-of-severe-intra-cerebral-bleeding-associated-with-acquired-factor-v-inhibition-utilization-of-multiple-therapeutic-agents
#10
Panagiotis Andreadis, Katerina Kafantari, Aleka Agapidou, Sofia Vakalopoulou, Efthymia Vlachaki
BACKGROUND: Acquired coagulation Factor inhibitors are antibodies that either inhibit the activity or increase the clearance of a clotting factor leading to an increased risk of bleeding. Most of the times, the disorder is attributed to Factor VIII inhibition (Acquired Hemophilia A), however other coagulation factors could also be implicated. CASE REPORT: We herein would like to report an interesting case of a patient who underwent Coronary Artery Bypass Graft and received antibiotic treatment after surgery with a third-generation cephalosporin...
September 13, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28902813/-surgical-decision-making-during-treatment-of-a-patient-with-multifocal-atherosclerosis-based-on-intraoperative-epiaortic-scanning
#11
A V Marchenko, P A Mialiuk, A S Vronskiĭ
The article deals with a clinical case report regarding surgical management of a patient presenting with multifocal atherosclerosis. Taking into consideration critical stenoses of the anterior interventricular artery (80%) and circumflex artery (80%), as well as subocclusion of the left internal carotid artery and stenosis of the right internal carotid artery (60%), there were high risks for intraoperative cerebral circulation impairment. It was decided to perform a two-stage operation on the coronary and carotid beds...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/28893695/chronological-evaluation-of-cerebral-hemodynamics-by-dynamic-susceptibility-contrast-magnetic-resonance-imaging-after-indirect-bypass-surgery-for-moyamoya-disease
#12
Yosuke Ishii, Yoji Tanaka, Toshiya Momose, Motoshige Yamashina, Akihito Sato, Shinichi Wakabayashi, Taketoshi Maehara, Tadashi Nariai
OBJECTIVE: Although indirect bypass surgery is an effective treatment option for patients with ischemic-onset moyamoya disease (MMD), the time point after surgery at which the patients' hemodynamic status starts to improve and the time point at which the improvement reaches a maximum have not been known. The objective of present study is to evaluate the hemodynamic status time course after indirect bypass surgery for MMD, using dynamic susceptibility contrast-magnetic resonance imaging (DSC-MRI)...
September 8, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28890061/cerebral-protection-with-a-temporary-ascending-aorta-external-carotid-artery-bypass-during-common-carotid-artery-revascularization
#13
Murat Ugurlucan, Yilmaz Onal, Didem Melis Oztas, Cagla Canbay, Ibrahim Demir, Omer Ali Sayin, Ozgur Kilickesmez, Mehmet Semih Cakir, Kubilay Aydin, Ufuk Alpagut
Atherosclerosis is a systemic disease and multi-arterial involvement is common. Involvement of all of the supra-aortic arteries may occur in the same patient making cerebral revascularization challenging. In this report, we present complete supra-aortic revascularization, i.e revascularization of the bilateral common carotid and subclavian arteries in a 51-year-old male patient with occluded brachiocephalic trunk, left subclavian artery and proximally stenotic left common carotid artery. A temporary ascending aorta to left external carotid artery bypass provided meticulous cerebral protection with pulsatile cerebral flow in the presence of a proximal arterial clamp; hence, a neurologicly uneventful procedure during bilateral common carotid artery revascularization...
September 7, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28887285/the-occipital-artery-as-an-alternative-donor-for-low-flow-bypass-to-anterior-circulation-after-ica-occlusion-failure-prior-to-exenteration-for-an-atypical-cavernous-sinus-meningioma-a-technical-case-report
#14
Shunya Hanakita, Stéphanie Lenck, Moujahed Labidi, Kentaro Watanabe, Damien Bresson, Sébastien Froelich
BACKGROUND: and Importance: In skull-base tumors involving the cavernous sinus (CS), indications for aggressive resection are sparse and must be carefully examined because of their invasiveness. With careful evaluation, techniques including internal carotid artery (ICA) sacrifice with or without extracranial-intracranial (EC-IC) bypass may still be an option in some cases. In addition, previous surgery with the sacrifice of potential donor vessels requires adjusting the revascularization strategy...
September 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28882917/effects-of-cerebral-near-infrared-spectroscopy-on-the-outcome-of-patients-undergoing-cardiac-surgery-a-systematic-review-of-randomised-trials
#15
Giuseppe Filiberto Serraino, Gavin J Murphy
OBJECTIVES: Goal-directed optimisation of cerebral oxygenation using near-infrared spectroscopy (NIRS) during cardiopulmonary bypass is widely used. We tested the hypotheses that the use of NIRS cerebral oximetry results in reductions in cerebral injury (neurocognitive function, serum biomarkers), injury to other organs including the heart and brain, transfusion rates, mortality and resource use. DESIGN: Systematic review and meta-analysis. SETTING: Tertiary cardiac surgery centres in North America, Europe and Asia...
September 7, 2017: BMJ Open
https://www.readbyqxmd.com/read/28870823/occipital-artery-to-middle-cerebral-artery-bypass-operative-nuances
#16
Toshikazu Kimura, Akio Morita
BACKGROUND: Superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis is a common procedure for vascular neurosurgeons, and it is used in a variety of diseases. However, there are cases in which the STA is absent or is too hypoplastic to be used as a donor for revascularization. Occipital artery-MCA (OA-MCA) bypass may be a treatment option in these cases. METHODS: We encountered four cases of symptomatic cerebral ischemia in which the STA was absent or unavailable...
September 1, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28868192/giant-cavernous-carotid-aneurysm-causing-pituitary-dysfunction-pituitary-function-recovery-with-high-flow-bypass
#17
Hideaki Ono, Tomohiro Inoue, Naoto Kunii, Takeo Tanishima, Akira Tamura, Isamu Saito, Nobuhito Saito
BACKGROUND: Giant internal carotid artery (ICA) aneurysms extending into the sellar region, mimicking pituitary tumors, and causing pituitary dysfunction are relatively rare. Open surgery or endovascular treatment can treat these aneurysms, but achieving recovery of endocrine function is difficult. CASE DESCRIPTION: A 56-year-old man presented with giant aneurysm of the ICA causing pituitary impairment, leading to disturbance of consciousness due to hyponatremia...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28855432/prospective-study-on-the-incidence-of-cerebrovascular-disease-after-coronary-angiography
#18
Akihiro Tokushige, Masaaki Miyata, Takeshi Sonoda, Ippei Kosedo, Daisuke Kanda, Takuro Takumi, Yuichi Kumagae, Yoshihiko Fukukura, Mitsuru Ohishi
AIM: Previous studies have reported a 10.2%-22% rate of silent cerebral infarction and a 0.1%-1% rate of symptomatic cerebral infarction after coronary angiography (CAG). However, the risk factors of cerebral infarction after CAG have not been fully elucidated. For this reason, we investigated the incidence and risk factors of CVD complications within 48 h after CAG using magnetic resonance imaging (MRI) (Diffusion-weighted MRI) at Kagoshima University Hospital. METHODS: From September 2013 to April 2015, we examined the incidence and risk factors, including procedural data and patients characteristics, of cerebrovascular disease after CAG in consecutive 61 patients who underwent CAG and MRI in our hospital...
August 30, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28844915/moyamoya-disease-in-a-8-year-old-boy-direct-bypass-surgery-in-a-province-of-peru
#19
Joham Choque-Velasquez, Roberto Colasanti, Danil A Kozirev, Juha Hernesniemi, Akitsugu Kawashima
BACKGROUND: Pediatric moyamoya cases may be very arduous, even more in a developing country where the access to specialized centers may be prevented by different factors. CASE DESCRIPTION: Herein, we report a challenging case, which was managed in the new Neurosurgical Center of Trujillo, regarding the direct anastomosis between the left superficial temporal artery and a cortical branch of the left middle cerebral artery in a 8-year-old Peruvian boy with moyamoya disease...
August 24, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28844834/what-makes-new-ischemic-lesions-symptomatic-after-aortic-valve-replacement
#20
Ronen R Leker, Steven R Messé, Guray Erus, Michel Bilello, Molly Fanning, Michael Acker, Allie Massaro, Scott E Kasner, Thomas Floyd
BACKGROUND: Acute cerebral infarctions on diffusion-weighted magnetic resonance imaging (MRI) are common after cardiothoracic surgery. However, most are asymptomatic and we aimed to identify features associated with clinical stroke symptoms. METHODS: Patients over 65 years of age undergoing surgical aortic valve replacement (AVR) for calcific stenosis were prospectively recruited (N = 196). All patients underwent neurological evaluation preoperatively and on postoperative days 1, 3, and 7, and MRI on planned postoperative day 5...
August 24, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
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