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https://www.readbyqxmd.com/read/29790970/balloon-occlusion-testing-to-assess-retinal-collateral-and-predict-visual-outcomes-in-the-management-of-a-fusiform-intraorbital-ophthalmic-artery-aneurysm-technical-note-and-literature-review
#1
Mithun G Sattur, Matthew E Welz, Bernard R Bendok, Jeffrey W Miller
BACKGROUND AND IMPORTANCE: Aneurysms of the ophthalmic artery (OA) within the orbit and optic canal are extremely rare. Given the peripheral location of these aneurysms and the fact that most are fusiform, parent artery occlusion is preferred for symptomatic aneurysms. However, the impact of OA occlusion on vision is not always innocuous. Balloon occlusion testing (BOT) of the OA has the potential to gauge the possibility of visual compromise, in addition to assessing collaterals. While BOT has been assessed for carotid artery occlusion, its role in OA occlusion has not been well defined...
May 22, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29788812/a-novel-technique-to-visualize-true-lumen-in-endovascular-treatment-of-the-occlusive-carotid-dissection-and-the-usefulness-of-external-internal-carotid-collateral-channel
#2
Keiji Murata, Shigeru Yamauchi, Yuta Kaneshiro, Yumiko Urano, Keishi Yamagata, Toshihiro Takami
Background Dissection of the internal carotid artery (ICA) can cause occlusion or severe stenosis and is known to be one of the major causes of ischemic stroke in the young. Endovascular treatment is one of the useful options for carotid dissections, but passing the guidewire through the occlusion (lesion-cross) and confirmation of the true lumen are sometimes difficult. Case presentation A 40-year-old right-handed man complaining of dysarthria and gait disturbance consulted our hospital. Magnetic resonance imaging and angiography revealed right ICA dissection...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29788799/management-of-the-left-subclavian-artery-during-tevar-complications-and-mid-term-follow-up
#3
Akram Youssef, Tamer Ghazy, Stephan Kersting, Jennifer Lynne Leip, Ralf-Thorsten Hoffmann, Utz Kappert, Klaus Matschke, Norbert Weiss, Adrian Mahlmann
BACKGROUND: Numerous conditions that affect the boundary between the aortic arch and descending aorta are treated with thoracic endovascular aortic repair (TEVAR). In 40 % of cases, coverage of the left subclavian artery (LSA) cannot be prevented. Subsequently, neurological complications such as stroke or ischemia of the left upper extremity may develop. However, the actual risk of these complications is subject to considerable controversy. The optimal treatment approach, specifically the question whether primary revascularization of the LSA should be performed in all cases, is unclear...
May 23, 2018: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/29777839/-mesenteric-steal-physiology-as-a-cause-of-claudication-and-chronic-mesenteric-ischemia
#4
Aleem K Mirza, J Michael Bacharach
Aortoiliac occlusive disease (AOID) results in varying degrees of pelvic and lower extremity arterial insufficiency. Treatment approach has evolved and endovascular therapies are being successfully reported for high-grade lesion. However, Trans Atlantic Inter-Society Consensus (TASC) D often necessitates open revascularization. Disease limited to the infrarenal segment does not typically affect intestinal perfusion in the absence of visceral aortic or mesenteric vessel involvement. Chronic mesenteric ischemia most commonly occurs due to atherosclerotic disease of two or three of the mesenteric vessels...
May 16, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29776725/collaterals-management-during-pancreatoduodenectomy-in-patients-with-celiac-axis-stenosis-a-systematic-review-of-the-literature
#5
REVIEW
Francesco Giovanardi, Quirino Lai, Manuela Garofalo, Gabriela A Arroyo Murillo, Eleonore Choppin de Janvry, Redan Hassan, Zoe Larghi Laureiro, Adriano Consolo, Fabio Melandro, Pasquale B Berloco
BACKGROUND/OBJECTIVES: Celiac axis stenosis (CAS) represents an uncommon and typically innocuous condition. However, when a pancreatic resection is required, a high risk for upper abdominal organs ischemia is observed. In presence of collaterals, such a risk is minimized if their preservation is realized. The aim of the present study is to systematically review the literature with the intent to address the routine management of collateral arteries in the case of CAS patients requiring pancreatoduodenectomy...
May 15, 2018: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29774174/outpatient-interventions-that-may-enhance-the-care-of-a-patient-with-co-existing-moyamoya-and-down-syndromes
#6
Anita Lwanga, Waldo Herrera, Katya Cruz Madrid, Antony Irungu
Moyamoya vasculopathy is a condition of chronic, progressive occlusion of the distal internal carotid arteries and the Circle of Willis. The resultant ischemia produces compensatory angiogenesis and the growth of a network of collateral blood vessels, which on angiography resemble a "puff of smoke" or "moyamoya" in Japanese. The objective of this case report is to describe the clinical course of a patient with Down and moyamoya syndromes and to enlighten clinicians about strategies that can be taken to enhance the care of similar patients...
March 16, 2018: Curēus
https://www.readbyqxmd.com/read/29773563/prediction-of-borderzone-infarction-by-cta-in-patients-undergoing-carotid-embolization-for-carotid-blowout
#7
B-C Lee, Y-H Lin, C-W Lee, H-M Liu, A Huang
BACKGROUND AND PURPOSE: Permanent common carotid artery and/or ICA occlusion is an effective treatment for carotid blowout syndrome. Besides postoperative thromboembolic infarction, permanent common carotid artery and/or ICA occlusion may cause borderzone infarction when the collateral flow to the deprived brain territory is inadequate. In this study, we aimed to test the predictive value of CTA for post-permanent common carotid artery and/or ICA occlusion borderzone infarction in patients with carotid blowout syndrome...
May 17, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29772576/wake-up-stroke-versus-stroke-with-known-onset-time-clinical-and-multimodality-ct-imaging-characteristics
#8
Jan W Dankbaar, Henri P Bienfait, Coen van den Berg, Edwin Bennink, Alexander D Horsch, Tom van Seeters, Irene C van der Schaaf, L Jaap Kappelle, Birgitta K Velthuis
BACKGROUND: Current guidelines for the treatment of acute ischemic stroke are mainly based on the time between symptom onset and initiation of treatment. This time is unknown in patients with wake-up stroke (WUS). We investigated clinical and multimodality CT imaging characteristics on admission in patients with WUS and in patients with a stroke with a known onset time. METHODS: All patients were selected from a large prospective cohort study (Dutch acute stroke study)...
May 17, 2018: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/29769202/predictors-of-length-of-hospital-stay-after-complete-repair-for-tetralogy-of-fallot-a-prospective-cohort-study
#9
Laura Mercer-Rosa, Okan U Elci, Grace DeCost, Stacy Woyciechowski, Sharon M Edman, Chitra Ravishankar, Christopher E Mascio, Steven M Kawut, Elizabeth Goldmuntz
BACKGROUND: We sought to identify patient and surgical factors associated with time to hospital discharge in patients undergoing complete repair for tetralogy of Fallot. METHODS AND RESULTS: We performed a prospective cohort study of patients with tetralogy of Fallot admitted for complete repair between May 1, 2012 and June 2, 2017 at Children's Hospital of Philadelphia with detailed demographic, clinical, and operative characteristics. The primary outcome was time to hospital discharge...
May 16, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29769055/one-visceral-artery-may-be-enough-successful-pancreatectomy-in-a-patient-with-total-occlusion-of-the-celiac-and-superior-mesenteric-arteries
#10
Evangelos Tagkalos, Florian Jungmann, Hauke Lang, Stefan Heinrich
BACKGROUND: The anatomic variations of the visceral arteries are not uncommon. The liver arterial blood supply shows 50% variability between humans, with the most common anatomy being one hepatic artery arising from the celiac trunk and one pancreatico-duodenal arcade between the celiac trunk and the superior mesenteric artery. Occlusion of one artery are mostly asymptomatic but may become clinically relevant when surgery of the liver, bile duct or the pancreas is required. If these pathologies are not reversible, an oncologic pancreatic head resection cannot be performed...
May 16, 2018: BMC Surgery
https://www.readbyqxmd.com/read/29764036/-comparison-of-prognostic-value-of-18-f-fdg-pet-ct-myocardial-metabolism-imaging-and-coronary-collateral-circulation-in-patients-with-cto-lesions
#11
G Y Zhai, J L Wang, Y Y Liu, Y J Zhou
Objective: To evaluate the location, extent of viable myocardial of chronic total coronary occlusions(CTO)lesions by (18)F-FDG PET myocardial metabolism imaging and then compare with coronary collateral circulation(CCC) to evaluate the prognostic evaluation in patients with CTO lesions. Methods: A total of Sixty consecutive patients with CTO lesions referred for viability assessment from April 2016 to April 2017 in Department of Cardiology, Beijing Anzhen Hospital were included in the study. These patients underwent (99m)Tc-sestamibi ECG-gated SPECT rest myocardial perfusion imaging and ECG-gated (18)F-FDG PET/CT myocardial metabolic imaging, as well as coronary arteriography were recruited in this study...
May 8, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29763851/pancreaticoduodenal-arcades-as-salvage-route-for-transarterial-embolization-of-life-threatening-hepatic-hemorrhage-in-patients-with-severe-celiac-axis-stenosis-case-series
#12
Ali Barah, Ahmed Omar, Ayman El-Menyar, Omran Almokdad, Ahmed Sayedin, Ala Alsherbini, Ahmed Almuzrakshi, Hatem Khalaf, Hassan Al-Thani
INTRODUCTION: Various transarterial embolotherapies for different hepatic etiologies are performed through the celiac axis (CA). However, this pathway is not always patent due to the extensive stenosis or occlusion of the origin of CA. In such situations, the pancreaticoduodenal arcades (PDAs) catheterization is the main alternative to gain access to the hepatic arteries as demonstrated in clinical studies. PRESENTATION OF CASE: We report two cases of life-threating hepatic hemorrhage indicated for emergency transarterial embolization (TAE)...
April 11, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29760013/severity-of-cerebral-vasospasm-associated-with-development-of-collaterals-following-aneurysmal-subarachnoid-hemorrhage
#13
Fawaz Al-Mufti, Jens Witsch, Nathan Manning, Michael Crimmins, Krishna Amuluru, Sachin Agarwal, Soojin Park, Joshua Z Willey, Hooman Kamel, E Sander Connolly, Philip M Meyers, Jan Claassen
INTRODUCTION: Cerebral collateral circulation has been studied extensively in ischemic stroke where it has been shown to be a predictor of reperfusion, final infarct size, and outcome. Little is known about the significance of the collaterals in the setting of aneurysmal subarachnoid hemorrhage (aSAH). We sought to evaluate the effect of cerebral vasospasm on the development of cerebral collaterals following aneurysmal subarachnoid hemorrhage and the effects of the latter on delayed cerebral ischemia (DCI)...
May 14, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29759708/intra-atrial-right-coronary-artery-and-its-ablation-implications
#14
Balaji Krishnan, Caroline Cross, Richard Dykoski, David G Benditt, Mackenzie Mbai, Edward McFalls, Jian-Ming Li, Stefan Bertog, Venkatakrishna N Tholakanahalli
OBJECTIVES: The study examined the frequency in which a right coronary artery (RCA) anomaly resulting in intra-atrialization of the vessel might increase risk of RCA damage during routine radiofrequency ablation in the right atrium even with low power or temperature. BACKGROUND: Right coronary artery (RCA) injury with endocardial RF ablation of the right atrium is a rare complication. METHODS: This prospective observational study comprised an analysis of coronary artery anatomies in 331 patients who underwent autopsies at our institution from 2005 to 2014...
September 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759706/the-human-left-atrial-venous-circulation-as-a-vascular-route-for-atrial-pharmacological-therapies-effects-of-ethanol-infusion
#15
Miguel Valderrábano, Percy Francisco Morales, Moisés Rodríguez-Mañero, Candela Lloves, Paul A Schurmann, Amish S Dave
OBJECTIVES: This study catalogued the human venous left atrium (LA) circulation system and the ablative effects of ethanol in different branches. BACKGROUND: Vascular routes to target the LA could have significant therapeutic potential. Beyond the vein of Marshall (VOM), the fluoroscopic LA venous anatomy has not been described. METHODS: Patients undergoing ethanol infusion in the VOM as adjunctive therapy to atrial fibrillation (AF) catheter ablation were included in this study...
September 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29754516/acute-retinal-hemorrhage-after-pipeline-embolization-device-placement-for-treatment-of-ophthalmic-segment-aneurysm-a-case-report
#16
Nimer Adeeb, Justin Moore, Christoph J Griessenauer, Raghav Gupta, Ahad A Fazelat, Christopher S Ogilvy, Ajith J Thomas
Introduction Ophthalmic segment aneurysms may present with visual symptoms due to direct compression of the optic nerve. Treatment of these aneurysms with the Pipeline embolization device (PED) often results in visual improvement. Flow diversion, however, has also been associated with occlusion of the ophthalmic artery and visual deficits in a small subset of cases. Case report A 49-year-old Caucasian female presented with subarachnoid hemorrhage due to a ruptured anterior communicating artery aneurysm. On follow-up imaging, the patient was found to have a right asymptomatic ophthalmic segment aneurysm...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29751186/delayed-establishment-of-collateral-circulation-from-the-posterior-meningeal-artery-after-proximal-occlusion-of-the-posterior-inferior-cerebellar-artery-case-report-and-literature-review
#17
Kun Hou, Yunbao Guo, Baofeng Xu, Kan Xu, Jinlu Yu
BACKGROUND: Dissecting aneurysm on the posterior inferior cerebellar artery (PICA) is a very rare entity, endovascular embolization is often adopted. During procedure, if the parent artery is occluded, the distal PICA is usually supplied by the ipsilateral anterior inferior artery or the contralateral PICA. In extremely rare circumstances, the distal PICA can establish collateral circulation by transdural anastomosis with the posterior meningeal artery (PMA). CASE DESCRIPTION: A 29-year-old woman was admitted complaining of thunderclap headache, nausea, and vomiting for 3 hours...
May 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29749671/combined-evaluation-of-noncontrast-ct-aspects-and-ct-angiography-collaterals-improves-detection-of-large-infarcts-in-proximal-artery-occlusive-stroke
#18
Farhad Mehrkhani, Olvert A Berkhemer, Charles B L M Majoie, Mohammad Mansouri, Zahra Karimi, Michael H Lev, Albert J Yoo
BACKGROUND AND PURPOSE: Imaging may identify patients with very large infarcts who are unlikely to benefit from intra-arterial therapy. Although computed tomography (CT) is widely used, it suffers from poor sensitivity. We sought to evaluate whether combined evaluation of noncontrast CT (NCCT) and CT angiography (CTA) collaterals would improve the detection of large infarcts. METHODS: All patients with anterior circulation proximal artery occlusion and baseline CT, CTA, and magnetic resonance imaging (MRI) performed were identified...
May 11, 2018: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/29740385/refocusing-neuroprotection-in-cerebral-reperfusion-era-new-challenges-and-strategies
#19
REVIEW
Xiao-Yi Xiong, Liang Liu, Qing-Wu Yang
Pathophysiological processes of stroke have revealed that the damaged brain should be considered as an integral structure to be protected. However, promising neuroprotective drugs have failed when translated to clinical trials. In this review, we evaluated previous studies of neuroprotection and found that unsound patient selection and evaluation methods, single-target treatments, etc., without cerebral revascularization may be major reasons of failed neuroprotective strategies. Fortunately, this may be reversed by recent advances that provide increased revascularization with increased availability of endovascular procedures...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29726778/hemodynamic-characteristics-associated-with-cerebral-aneurysm-formation-in-patients-with-carotid-occlusion
#20
Sophia F Shakur, Ali Alaraj, Nasya Mendoza-Elias, Muhammad Osama, Fady T Charbel
OBJECTIVE The pathogenesis of cerebral aneurysms in patients with internal carotid artery (ICA) occlusion is hypothesized to be hemodynamic. For the first time, the authors quantify the hemodynamic characteristics associated with aneurysm formation in patients with ICA occlusion. METHODS Records of patients with unilateral ICA stenosis or occlusion ≥ 90% who underwent hemodynamic assessment before treatment using quantitative MR angiography were retrospectively reviewed. The patients were classified into 2 groups based on the presence or absence of aneurysms...
May 4, 2018: Journal of Neurosurgery
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