3,433 results match your criteria Posterior Cerebral Artery Stroke

A Case of Acquired Cerebral Achromatopsia Secondary to Posterior Cerebral Artery Stroke.

Cureus 2021 May 2;13(5):e14798. Epub 2021 May 2.

Neurology, Creighton University School of Medicine, Omaha, USA.

Impairment of color vision is known as "Achromatopsia." This condition is multifactorial with a myriad of causes, from local at the retinal level to central at the occipital cortex level. The most common causes are inherited conditions. Read More

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Effect of first pass reperfusion on outcome in patients with posterior circulation ischemic stroke.

J Neurointerv Surg 2021 May 4. Epub 2021 May 4.

Neurology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.

Background: First pass reperfusion (FPR), that is, excellent reperfusion (expanded treatment in cerebral ischemia (eTICI) 2C-3) in one pass, after endovascular treatment (EVT) of an occluded artery in the anterior circulation, is associated with favorable clinical outcome, even when compared with multiple pass excellent reperfusion (MPR). In patients with posterior circulation ischemic stroke (PCS), the same association is expected, but currently unknown. We aimed to assess characteristics associated with FPR and the influence of FPR versus MPR on outcomes in patients with PCS. Read More

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Computed Tomography Perfusion Deficit Volumes Predict Functional Outcome in Patients With Basilar Artery Occlusion.

Stroke 2021 May 5:STROKEAHA120032924. Epub 2021 May 5.

Department of Radiology, University Hospital, LMU Munich, Germany. (M.P.F., D.P.-W., S.G., S.M., V.S., J.R., L.S., J.R., W.G.K., P.R.).

Background And Purpose: Basilar artery occlusion is associated with high morbidity and mortality. Optimal imaging and treatment strategy are still controversial and prognosis estimation challenging. We, therefore, aimed to determine the predictive value of computed tomography perfusion (CTP) parameters for functional outcome in patients with basilar artery occlusion in the context of endovascular treatment. Read More

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Stroke in a child with SARS-CoV-2 infection: A case report.

eNeurologicalSci 2021 Apr 28:100345. Epub 2021 Apr 28.

Department of Pediatrics, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran.

Coronavirus disease 2019 (COVID-19) is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Some patients with COVID-19 show widely neurological manifestations including stroke. We report a child who was hospitalized due to seizures and was later diagnosed with COVID-19. Read More

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Mechanical thrombectomy in patients with cervical artery dissection and stroke in the anterior or posterior circulation - a multicenter analysis from the German Stroke Registry.

Neurol Res Pract 2021 May 3;3(1):20. Epub 2021 May 3.

Klinik und Hochschulambulanz für Neurologie, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany.

Background: Cervical artery dissection (CAD) is a rare cause of acute ischemic stroke (AIS) with large vessel occlusion (LVO) and may constitute a challenge for mechanical thrombectomy (MT). We compared procedural characteristics, reperfusion rates, and clinical outcome in AIS patients undergoing MT with and without CAD.

Methods: We performed a pre-specified analysis of patients registered within the German Stroke Registry, a prospectively maintained multicenter registry of consecutive patients with AIS patients treated by MT. Read More

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Risk Factors for the Recurrence of Posterior Communicating Artery Aneurysm: The Significance of Fetal-Type Posterior Cerebral artery.

J Stroke Cerebrovasc Dis 2021 Apr 26;30(7):105821. Epub 2021 Apr 26.

Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, South Korea. Electronic address:

Objectives: The purpose of this study was to investigate the risk factors associated with recurrence of posterior communicating artery aneurysms after treatment and to evaluate the significance of fetal-type posterior cerebral artery as an independent risk factor for recurrence of posterior communicating artery aneurysms.

Materials And Methods: The clinical and radiological findings of 220 posterior communicating artery aneurysms treated between January 2009 and December 2016 in a single tertiary institute were retrospectively reviewed. Univariate and multivariate analyses were performed to evaluate the association between clinical and radiological variables and recurrence. Read More

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Bilateral Vertebral Artery Hypoplasia and Fetal-Type Variants of the Posterior Cerebral Artery in Acute Ischemic Stroke.

Front Neurol 2021 8;12:582149. Epub 2021 Apr 8.

Department of Neurology, Chung Shan Medical University Hospital, Taichung, Taiwan.

Unilateral vertebral artery hypoplasia is considered a risk factor for posterior circulation infarction. Despite the increasing attention on unilateral vertebral artery hypoplasia, few studies have discussed bilateral vertebral artery hypoplasia, its influence on stroke, or its collateral supply from the circle of Willis. We aimed to identify its characteristics, stroke pattern, and unique ultrasonographic and brain imaging findings. Read More

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Cerebellar artery infarction with sudden hearing loss and vertigo as initial symptoms: A case report.

World J Clin Cases 2021 Apr;9(11):2519-2523

Department of Neurology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China.

Background: Sudden hearing loss (SHL) is associated with serious systematic conditions such as neoplasms, vascular events, autoimmune diseases, infections, and iatrogenic injury. Some authors report that SHL can be an early warning sign of impending vertebrobasilar ischemic stroke. It is important to distinguish stroke from benign disease. Read More

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Artery of Percheron occlusion with first-pass recanalisation of the first segment of posterior cerebral artery.

BMJ Case Rep 2021 Apr 21;14(4). Epub 2021 Apr 21.

Neurosurgery, Neurology and Radiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA

This is an elderly patient who was found unconscious at home. CT of the head without contrast was unremarkable, while CT angiography of the head and neck revealed a subocclusive thrombus on the precommunicating (P1) segment of the left posterior cerebral artery (PCA). MRI brain revealed bilateral regions of diffusion restriction in the paramedian thalami and bilateral medial mesencephalon. Read More

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Malignant middle cerebral artery infarction following subacute subdural hematoma: A case report and literature review.

Surg Neurol Int 2021 17;12:105. Epub 2021 Mar 17.

Neurosciences Research Centre, Molecular and Clinical Sciences Research Institute, Atkinson Morley Neurosurgery Centre, St George's, University of London, Tooting, London, United Kingdom.

Background: Subacute subdural hematomas (ASDH) are only treated surgically when they cause mass effect significant enough to give symptoms. Rarely, sub-ASDH may cause enough pressure to result in a malignant middle cerebral artery (MCA) territory infarction. Decompressive craniectomy (DC) is the last resort to reduce intracranial pressure following malignant MCA infarction. Read More

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Mechanical thrombectomy for acute occlusion of the posterior inferior cerebellar artery: A case report.

World J Clin Cases 2021 Apr;9(10):2268-2273

Department of Neurology, Chengdu Fifth People's Hospital, Chengdu 611130, Sichuan Province, China.

Background: Mechanical thrombectomy (MT) has been demonstrated to be useful for the treatment of ischemic stroke in patients with large vessel occlusions. However, recanalization by MT is not recommended for distal vessels such as second-order branches of the middle cerebral artery and posterior inferior cerebellar artery (PICA). Because of the small size and tortuosity of these arteries, the risks of using the available endovascular devices outweigh the benefits of treatment. Read More

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[Hemichorea in a patient with acute cerebral infarction of the somatosensory cortex].

Rinsho Shinkeigaku 2021 Apr 17. Epub 2021 Apr 17.

Division of Neurology, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University.

A 86-year-old woman with left hemiparesis was admitted to our hospital. When visiting to our hospital, hemichorea appeared on her left extremities in an ambulance. She also had mild disturbance of consciousness, spatial disorientation, and sensory disturbance. Read More

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Visual texture agnosia caused by bilateral posterior cerebral artery stroke: a case study.

Neurocase 2021 Apr 14:1-6. Epub 2021 Apr 14.

Division of Legal Medicine, Shiga University of Medical Science, Shiga, Japan.

A 57-year-old man presented with a bilateral posterior cerebral artery attack and was visually impaired. He had a hard time identifying familiar faces and shades. He also felt that the familiar building looked different, and complained that it was not possible to tell from visual information alone whether the food was cooked or the kimono fabric was soft. Read More

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Differentiating Dynamic Cerebral Autoregulation Across Vascular Territories.

Front Neurol 2021 23;12:653167. Epub 2021 Mar 23.

Department of Neurology, University of Pennsylvania, Philadelphia, PA, United States.

Transcranial Doppler is commonly used to calculate cerebral autoregulation, but measurements are typically restricted to a single cerebral artery. In exploring topographic heterogeneity, this study reports the first thorough comparison of autoregulation in all major cerebral vessels. In forty healthy adults, flow velocity was monitored in the anterior, middle, and posterior cerebral arteries, and synchronized with arterial blood pressure. Read More

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Which Acute Ischemic Stroke Patients Are Fast Progressors?: Results From the ESCAPE Trial Control Arm.

Stroke 2021 May 5;52(5):1847-1850. Epub 2021 Apr 5.

Clinical Neurosciences (J.M.O., M.D.H., A.M.D., B.K.M., A.M., M.G.), University of Calgary, Canada.

Background And Purpose: Fast infarct progression in acute ischemic stroke has a severe impact on patient prognosis and benefit of endovascular thrombectomy. In this post hoc analysis of the ESCAPE trial (Endovascular Treatment for Small Core and Proximal Occlusion Ischemic Stroke), we identified acute ischemic stroke patients with rapid infarct growth and investigated their baseline clinical and imaging characteristics.

Methods: Control arm patients were included if they had follow-up imaging at 2-8 hours without substantial recanalization, and if their baseline Alberta Stroke Program Early CT Score was ≥9. Read More

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Diagnostic value of diffusion-weighted STEAM-MRI in ischemic stroke.

Eur J Radiol 2021 Mar 26;139:109677. Epub 2021 Mar 26.

Max Planck Institute for Biophysical Chemistry, Göttingen, Germany.

Introduction: Diffusion-weighted imaging in stimulated echo acquisition mode (STEAM-DWI) is an interesting alternative with less susceptibility artifacts compared to the most commonly used diffusion-weighted echo-planar imaging (EPI-DWI). Sensitivity and specificity of a novel STEAM-DWI, described by Merrem et al. 2017 [1], were assessed in patients with ischemic stroke. Read More

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Relationship of the vascular territory affected by delayed cerebral ischemia and the location of the ruptured aneurysm in patients with aneurysmal subarachnoid hemorrhage.

Neurosurg Rev 2021 Mar 29. Epub 2021 Mar 29.

Department of Neurosurgery, University Hospital Tuebingen, Hoppe-Seyler-Straße 3, 72076, Tuebingen, Germany.

Objective: To determine the area most at risk of delayed cerebral ischemia (DCI) in relation to the location of the ruptured aneurysm in patients with aneurysmal subarachnoid hemorrhage (aSAH) and, therefore, help to choose the site for focal multimodal neuromonitoring.

Methods: We retrospectively analyzed angiographic findings, CCT scans, and patient charts of patients who were admitted with aSAH to our neurosurgical intensive care unit between 2009 and 2017. DCI was defined as infarction on CCT 2-6 weeks after aSAH. Read More

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Endovascular treatment of acute basilar artery occlusion: Outcomes, influencing factors and imaging characteristics from the Tama-REgistry of acute thrombectomy (TREAT) study.

J Clin Neurosci 2021 Apr 8;86:184-189. Epub 2021 Feb 8.

Department of Stroke and Cerebrovascular Medicine, Kyorin University, Tokyo, Japan.

Objective: The effectiveness of mechanical thrombectomy (MT) for acute basilar artery occlusion (ABAO) remains unknown. We evaluated the feasibility, safety, and efficacy of endovascular treatment for ABAO.

Methods: We retrospectively investigated patients with ABAO who underwent MT using modern stent retrievers and an aspiration device between January 2015 and March 2019 at 12 comprehensive stroke centers. Read More

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Category-selective deficits are the exception and not the rule: Evidence from a case-series of 64 patients with ventral occipito-temporal cortex damage.

Cortex 2021 May 19;138:266-281. Epub 2021 Feb 19.

Department of Psychology, University of Copenhagen, Denmark. Electronic address:

The organisational principles of the visual ventral stream are still highly debated, particularly the relative association/dissociation between word and face recognition and the degree of lateralisation of the underlying processes. Reports of dissociations between word and face recognition stem from single case-studies of category selective impairments, and neuroimaging investigations of healthy participants. Despite the historical reliance on single case-studies, more recent group studies have highlighted a greater commonality between word and face recognition. Read More

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Anatomical Variations in the Circulus Arteriosus Cerebri with Clinical Importance - Results of an Magnetic Resonance Angiography Study and Review of Literature.

J Clin Imaging Sci 2021 15;11. Epub 2021 Feb 15.

Department of Anatomy, University of Prishtina "Hasan Prishtina", Pristina, Kosovo.

Objectives: Anatomy of circulus arteriosus cerebri (CAC) shows wide variation in different individuals, and population groups and has vital clinical significance in causation and presentation of clinical disease. The literature revealed a connection between the variations of CAC and cerebrovascular disease, ischemia, stroke, aneurysms, and atherosclerosis.

Material And Methods: In this study, 513 patients without clinical manifestation in regard to cerebrovascular diseases, who are considered healthy on CAC anatomy, are included. Read More

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February 2021

Temporary application of lower body positive pressure improves intracranial velocities in symptomatic acute carotid occlusion or tight stenosis: A pilot study.

Int J Stroke 2021 Apr 15:17474930211008003. Epub 2021 Apr 15.

Department of Anesthesiology and Intensive Care, Hôpital Edouard Herriot, Hospices Civils de Lyon, France.

Background: Patients with isolated cervical carotid artery occlusion not eligible to recanalization therapies but with compromised intracranial hemodynamics may be at risk of further clinical events. Apart from lying flat until spontaneous recanalization or adjustment of the collateral circulation hopefully occurs, no specific treatment is currently implemented. Improving collateral flow is an attractive option in this setting. Read More

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PHACTR1 genetic variability is not critical in small vessel ischemic disease patients and PcomA recruitment in C57BL/6J mice.

Sci Rep 2021 Mar 16;11(1):6072. Epub 2021 Mar 16.

Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI, USA.

Recently, several genome-wide association studies identified PHACTR1 as key locus for five diverse vascular disorders: coronary artery disease, migraine, fibromuscular dysplasia, cervical artery dissection and hypertension. Although these represent significant risk factors or comorbidities for ischemic stroke, PHACTR1 role in brain small vessel ischemic disease and ischemic stroke most important survival mechanism, such as the recruitment of brain collateral arteries like posterior communicating arteries (PcomAs), remains unknown. Therefore, we applied exome and genome sequencing in a multi-ethnic cohort of 180 early-onset independent familial and apparently sporadic brain small vessel ischemic disease and CADASIL-like Caucasian patients from US, Portugal, Finland, Serbia and Turkey and in 2 C57BL/6J stroke mouse models (bilateral common carotid artery stenosis [BCCAS] and middle cerebral artery occlusion [MCAO]), characterized by different degrees of PcomAs patency. Read More

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Increased Ipsilateral Posterior Cerebral Artery P2-Segment Flow Velocity Predicts Hemodynamic Impairment.

Stroke 2021 Apr 9;52(4):1469-1472. Epub 2021 Mar 9.

Department of Neurosurgery (C.H.B.v.N., M.S., GE, M.H., A.H., L.R., J.F.), University Hospital Zurich, University of Zurich, Switzerland.

Background And Purpose: Increased Transcranial Doppler flow velocity in the ipsilateral P2-segment of the posterior cerebral artery (PCA-P2: cm/second) is associated with recurrent cerebrovascular events in patients with unilateral internal carotid artery occlusion. However, its predictive value and correlation with hemodynamic impairment in an overall stroke patient cohort remains to be determined.

Methods: Transcranial doppler PCA-P2 flow velocity was measured in 88 patients with symptomatic unilateral steno-occlusive disease who also underwent blood oxygenation-level dependent cerebrovascular reactivity imaging (blood oxygenation-level dependent [BOLD]-cerebrovascular reactivity [CVR]). Read More

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[Evaluation of the single stage treatment of intracranial or extracranial artery stenosis combined with intracranial aneurysm:experience from a single center].

Zhonghua Wai Ke Za Zhi 2021 Mar;59(3):210-215

Department of Neurosurgery,Peking University First Hospital,Beijing 100034,China.

To investigate the strategy and the clinical effect of single stage treatment for intracranial or extracranial artery stenosis with intracranial aneurysm. The clinical data of 15 patients with intracranial aneurysms and extracranial or intracranial artery stenosis treated by one-stage endovascular therapy at Department of Neurosurgery of Peking University First Hospital from April 2013 to September 2018 were analyzed,respectively.There were 6 males and 9 females,aged (63. Read More

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Prevalence and site of predilection of carotid webs focusing on symptomatic and asymptomatic Japanese patients.

J Neurosurg 2021 Mar 5:1-7. Epub 2021 Mar 5.

Departments of1Neurosurgery.

Objective: Carotid webs (CWs) have increasingly been recognized as a cause of recurrent ischemic stroke. However, the natural history and clinical course of CWs remain unclear. The authors aimed to clarify the prevalence, imaging features, and optimal treatment of CWs in a Japanese cohort study. Read More

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Association Between Ultrasound Parameters and History of Ischemic or Hemorrhagic Stroke in Patients With Moyamoya Disease.

Front Neurol 2021 15;12:570843. Epub 2021 Feb 15.

Department of Ultrasound, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.

To explore the association between ultrasound parameters and previous ischemic or hemorrhagic stroke in patients with moyamoya disease (MMD), and develop an ultrasound-based nomogram to identify stroke in patients with MMD. We prospectively enrolled 52 consecutive patients (92 hemispheres) with MMD at the Beijing Tiantan Hospital. Thirty-six patients (65 hemispheres) were assigned to the training dataset from September 2019 to February 2020, and 16 patients (27 hemispheres) were assigned to the validation dataset from March 2020 to July 2020. Read More

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February 2021

Comaneci Device for Temporary Coiling Assistance for Treatment of Wide-Necked Aneurysms: Initial Case Series and Systematic Literature Review.

World Neurosurg 2021 May 25;149:e85-e91. Epub 2021 Feb 25.

Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Department of Radiology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo, New York, USA; Jacobs Institute, Buffalo, New York, USA; Department of Neurosurgery, Gates Vascular Institute at Kaleida Health, Buffalo, New York, USA. Electronic address:

Background: Coiling of wide-necked aneurysms requires high-density packing of coils within the aneurysm, which necessitates adequate microcatheter access and navigability. The Comaneci device, introduced in the United States in 2019, is a retrievable stent that can be used as an adjunct to coiling of a wide-necked aneurysm without limiting flow. We present a case series and systematic review of use of this device. Read More

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A review of endovascular treatment for medium vessel occlusion stroke.

J Neurointerv Surg 2021 Feb 26. Epub 2021 Feb 26.

Clinical Neuroscienes, University of Calgary, Calgary, Alberta, Canada

Medium-vessel occlusions (MeVOs), that is, occlusions of the M2/3 middle cerebral artery, A2/3 anterior cerebral artery, and P2/3 posterior cerebral artery segments, account for 25%-40% of all acute ischemic stroke cases. Clinical outcomes of MeVO stroke with intravenous thrombolysis, which is the current standard of care, are moderate at best. With improving imaging technologies and a growing literature, MeVOs are increasingly recognized as a target for endovascular treatment (EVT). Read More

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February 2021

Superficial Temporal Artery-Posterior Cerebral Artery Bypass for the Treatment of Chronic Basilar Artery Occlusion.

World Neurosurg 2021 Feb 23. Epub 2021 Feb 23.

Department of Neurosurgery, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China. Electronic address:

Objective: To investigate the effect of superficial temporal artery-posterior cerebral artery (STA-PCA) bypass on chronic basilar artery occlusion (CBAO).

Methods: A total of 4 patients who underwent STA-PCA bypass between January 2018 and October 2019 were enrolled in this study. Cerebral blood perfusion, ischemic events, STA diameter and blood flow changes, modified Rankin scale score (mRS), and National Institutes of Health Stroke Scale (NIHSS) score changes were recorded before and after bypass surgery. Read More

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February 2021