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Lacunar infarct

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https://www.readbyqxmd.com/read/29143062/-intracranial-cystic-lesions
#1
REVIEW
F Ahlhelm, K Shariat, S Götschi, S Ulmer
CLINICAL PROBLEM: Intracerebral cysts are common findings in imaging of the neurocranium and are not always clinically significant. The pathological spectrum of intracerebral cysts is, however, very broad and in addition to incidental findings includes developmental disorders, malformation tumors, primary and secondary neoplasms and infectious etiologies, such as cerebral abscess formation, cysticercosis or residuals after congenital cytomegalovirus infections. Intracerebral cystic defects may be caused by inflammatory central nervous system (CNS) diseases, such as multiple sclerosis as well as by mitochondriopathies, leukodystrophy, electrolyte disturbances or osmotic demyelination syndrome or brain infarctions, e...
November 15, 2017: Der Radiologe
https://www.readbyqxmd.com/read/29130572/ischemic-optic-neuropathy-in-a-dog-with-acute-bilateral-blindness-and-primary-systemic-hypertension
#2
L Mari, R Stavinohova, E Dominguez, J Premont, J Oliver, L De Risio
A 6-year-old neutered female Jack Russell terrier was investigated for sudden onset prechiasmatic bilateral blindness, left circling, reduced proprioception in the right pelvic limb and right facial allodynia. Electroretinography was normal. Magnetic resonance imaging (MRI) examination revealed that the right optic nerve and the optic chiasm were hyperintense on diffusion weighted imaging and hypointense on apparent diffusion coefficient map consistent with ischemic optic neuropathy. A concurrent lacunar infarct was detected in the left rostral colliculus...
November 12, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29115584/apolipoprotein-c-iii-in-the-high-density-lipoprotein-proteome-of-cerebral-lacunar-infarction-patients-impairs-its-anti-inflammatory-function
#3
Pu Lv, Mingming Zhao, Yuanyuan Liu, Haiqiang Jin, Wei Cui, Chenghe Fan, Yuming Teng, Lemin Zheng, Yining Huang
High-density lipoprotein (HDL) proteomic study has identified substantial changes associated with various disease states. In the current study, the HDL proteomes in patients with cerebral lacunar infarction (LACI) and control subjects were investigated. A total of 12 LACI patients without evident large vessel occlusions and 12 controls were enrolled in the study. The HDL fraction from each sample was isolated from the plasma by ultracentrifugation. The protemics of the HDL were investigated using nano liquid chromatography coupled to tandem mass spectrometry...
October 27, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29100059/enlarged-perivascular-spaces-in-the-basal-ganglia-are-independently-associated-with-intracranial-atherosclerosis-in-the-elderly
#4
Oscar H Del Brutto, Robertino M Mera
BACKGROUND AND AIMS: Enlarged basal ganglia perivascular spaces (BG-PVS) are a marker of cerebral small vessel disease (SVD). The association between enlarged BG-PVS and atherosclerosis has been explored, but knowledge is limited to extracranial vessels. We aimed to assess whether enlarged BG-PVS correlate with carotid siphon calcifications (CSC), used as a surrogate of intracranial atherosclerosis. METHODS: Atahualpa residents aged ≥60 years underwent head computed tomography (CT) for assessment of CSC, and brain magnetic resonance imaging (MRI) for evaluation of BG-PVS and other imaging markers of SVD...
October 20, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29076786/adenosine-induced-cardiac-arrest-as-an-alternative-to-temporary-clipping-during-intracranial-aneurysm-surgery
#5
Patcharin Intarakhao, Peeraphong Thiarawat, Behnam Rezai Jahromi, Danil A Kozyrev, Mario K Teo, Joham Choque-Velasquez, Teemu Luostarinen, Juha Hernesniemi
OBJECTIVE The purpose of this study was to analyze the impact of adenosine-induced cardiac arrest (AiCA) on temporary clipping (TC) and the postoperative cerebral infarction rate among patients undergoing intracranial aneurysm surgery. METHODS In this retrospective matched-cohort study, 65 patients who received adenosine for decompression of aneurysms during microsurgical clipping were identified (Group A) and randomly matched with 65 selected patients who underwent clipping but did not receive adenosine during surgery (Group B)...
October 27, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29070665/blood-brain-barrier-leakage-increases-with-small-vessel-disease-in-acute-ischemic-stroke
#6
Francesco Arba, Richard Leigh, Domenico Inzitari, Steven J Warach, Marie Luby, Kennedy R Lees
OBJECTIVE: In patients with acute ischemic stroke, we aimed to investigate the relation between preexisting small vessel disease (SVD) and the amount of blood-brain barrier (BBB) leakage in ischemic and nonischemic area before IV thrombolysis. METHODS: We retrospectively accessed anonymous patient-level data from the Stroke Imaging Repository and the Virtual International Stroke Trials Archive resources and included patients treated with IV thrombolysis with pretreatment MRI...
October 25, 2017: Neurology
https://www.readbyqxmd.com/read/29061396/increased-level-of-procalcitonin-is-associated-with-total-mri-burden-of-cerebral-small-vessel-disease-in-patients-with-ischemic-stroke
#7
Guangzong Li, Chen Zhu, Jing Li, Xiangming Wang, Qingbin Zhang, Hongjia Zheng, Cheng Zhan
BACKGROUND: Procalcitonin (PCT) has been found to be associated with subclinical cerebrovascular damage. The relationship between PCT levels and cerebral small vessel disease (cSVD), especially cSVD burden, has not been fully understood. This study aimed to investigate the association between PCT levels and cSVD in patients with first-ever acute ischemic stroke or transient ischemic attack (TIA). METHODS: Two hundred and seventy-eight consecutive patients were prospectively recruited during Jan 2016 to Jun 2017...
October 20, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29053032/a-mouse-model-of-subcortical-vascular-dementia-reflecting-degeneration-of-cerebral-white-matter-and-microcirculation
#8
Eek-Sung Lee, Jin-Hui Yoon, Jiye Choi, Faris R Andika, Taekwan Lee, Yong Jeong
Subcortical vascular dementia(SVaD) is associated with white matter damage, lacunar infarction, and degeneration of cerebral microcirculation. Currently available mouse models can mimic only partial aspects of human SVaD features. Here, we combined bilateral common carotid artery stenosis (BCAS) with a hyperlipidaemia model in order to develop a mouse model of SVaD; 10- to 12-week-old apolipoprotein E (ApoE)-deficient or wild-type C57BL/6J mice were subjected to sham operation or chronic cerebral hypoperfusion with BCAS using micro-coils...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29037007/small-vessel-transient-ischemic-attack-and-lacunar-infarction-detected-with-perfusion-weighted-mri
#9
Hyun-Wook Nah
No abstract text is available yet for this article.
September 2017: Journal of Stroke
https://www.readbyqxmd.com/read/29018129/neuroimaging-correlates-of-cerebral-microbleeds-the-aric-study-atherosclerosis-risk-in-communities
#10
MULTICENTER STUDY
Jonathan Graff-Radford, Jeannette Simino, Kejal Kantarci, Thomas H Mosley, Michael E Griswold, B Gwen Windham, A Richey Sharrett, Marilyn S Albert, Rebecca F Gottesman, Clifford R Jack, Prashanthi Vemuri, David S Knopman
BACKGROUND AND PURPOSE: Cerebral microbleed (CMB) location (deep versus strictly lobar) may elucidate underlying pathology with deep CMBs being more associated with hypertensive vascular disease and lobar CMBs being more associated with cerebral amyloid angiopathy. The objective of this study was to determine whether neuroimaging signs of vascular disease and Alzheimer pathology are associated with different types of CMBs. METHODS: Among 1677 nondemented ARIC (Atherosclerosis Risk in Communities) participants (mean age=76±5 years; 40% men; 26% black) with 3-Tesla MRI scans at the fifth examination (2011-2013), we fit multinomial logistic regression models to quantify relationships of brain volumes (Alzheimer disease signature regions, total gray matter, frontal gray matter, and white matter hyperintensity volumes), infarct frequencies (lacunar, nonlacunar, and total), and apolipoprotein E (number of ε4 alleles) with CMB location (none, deep/mixed, or strictly lobar CMBs)...
November 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28991905/the-presence-and-severity-of-cerebral-small-vessel-disease-increases-the-frequency-of-stroke-in-a-cohort-of-patients-with-large-artery-occlusive-disease
#11
Ki-Woong Nam, Hyung-Min Kwon, Jae-Sung Lim, Moon-Ku Han, Hyunwoo Nam, Yong-Seok Lee
BACKGROUND: Cerebral small vessel disease (SVD) commonly coexists with large artery atherosclerosis (LAA). AIM: We evaluate the effect of SVD on stroke recurrence in patients for ischemic stroke with LAA. METHODS: We consecutively collected first-ever ischemic stroke patients who were classified as LAA mechanism between Jan 2010 and Dec 2013. Univariate and multivariate Cox analyses were performed to evaluate the association between the 2-year recurrence and demographic, clinical, and radiological factors...
2017: PloS One
https://www.readbyqxmd.com/read/28989801/blood-pressure-gradients-in-cerebral-arteries-a-clue-to-pathogenesis-of-cerebral-small-vessel-disease
#12
Pablo J Blanco, Lucas O Müller, J David Spence
RATIONALE: The role of hypertension in cerebral small vessel disease is poorly understood. At the base of the brain (the 'vascular centrencephalon'), short straight arteries transmit blood pressure directly to small resistance vessels; the cerebral convexity is supplied by long arteries with many branches, resulting in a drop in blood pressure. Hypertensive small vessel disease (lipohyalinosis) causes the classically described lacunar infarctions at the base of the brain; however, periventricular white matter intensities (WMIs) seen on MRI and WMI in subcortical areas over the convexity, which are often also called 'lacunes', probably have different aetiologies...
September 2017: Stroke and Vascular Neurology
https://www.readbyqxmd.com/read/28987197/neuropathology-of-cerebrovascular-diseases
#13
Isidro Ferrer, Noemi Vidal
The chapter describes the epidemiology of cerebrovascular diseases, anatomy of the cerebral blood vessels, pathophysiology of ischemia, hypoxia, hypoxemia, anemic hypoxia, histotoxic hypoxia, carbon monoxide damage, hyperoxid brain damage and decompression sickness, and selective cell and regional vulnerability; diseases of the blood vessels including atherosclerosis, hypertensive angiopathy, small vessel disease, inflammatory vascular diseases, cerebral amyloid angiopathies, CADASIL, CARASIL and other diseases that can lead to cerebrovascular occlusion; intracranial and intraspinal aneurysms and vascular malformations; hematologic disorders that can cause cerebral infarct or hemorrhage; brain ischemic damage; and spontaneous intracranial bleeding...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28974389/high-prevalence-of-small-vessel-disease-long-after-cranial-irradiation
#14
Masatomo Miura, Makoto Nakajima, Akiko Fujimoto, Yasuyuki Kaku, Takayuki Kawano, Masaki Watanabe, Jun-Ichi Kuratsu, Yukio Ando
Accelerated atherosclerosis of intra- or extracranial large arteries is a major cause of radiation-induced strokes. Recent development of MRI techniques has enabled detection of another important vasculopathy: microinfarcts or microbleeds after cranial irradiation. The purpose of this study was to investigate the incidence and characteristics of small vessel disease after cranial irradiation. MR images and clinical records of 102 outpatients who had undergone cranial irradiation to brain tumors were retrospectively reviewed...
December 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28974335/retinal-neurodegeneration-and-brain-mri-markers-the-rotterdam-study
#15
Unal Mutlu, Pieter W M Bonnemaijer, M Arfan Ikram, Johanna M Colijn, Lotte G M Cremers, Gabriëlle H S Buitendijk, Johannes R Vingerling, Wiro J Niessen, Meike W Vernooij, Caroline C W Klaver, M Kamran Ikram
We investigated the association of specific retinal sublayer thicknesses on optical coherence tomography (OCT) with brain magnetic resonance imaging (MRI) markers. We included 2124 persons (mean age 67.0 years; 56% women) from the Rotterdam Study who had gradable retinal OCT images and brain MRI scans. Thickness of retinal nerve fiber layer (RNFL), ganglion cell layer (GCL), and inner plexiform layer were measured on OCT images. Volumetric, microstructural, and focal markers of brain tissue were assessed on MRI...
December 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28966647/association-and-differences-in-genetic-polymorphisms-in-pcsk9-gene-in-subjects-with-lacunar-infarction-in-the-han-and-uygur-populations-of-xinjiang-uygur-autonomous-region-of-china
#16
Deng-Feng Han, Jian-Hua Ma, Chen-Guang Hao, Tuerhong Tuerxun, Lei Du, Xiao-Ning Zhang
Polymorphisms in the proprotein convertase subtilisin/kexin type 9 (PCSK9) gene are associated with severe hypercholesterolemia and stroke. Here, we investigated the relationship between single nucleotide polymorphisms in PCSK9 and stroke in 237 patients with lacunar infarction in the Uygur and Han populations in Xinjiang Uygur Autonomous Region of China. Using the SNaPshot single-base terminal extension method, four PCSK9 gene polymorphisms were analyzed. We found a significantly strong relationship between the PCSK9 rs17111503 (G > A) polymorphism and increased susceptibility to lacunar infarction by variant homozygote comparison, and using the dominant and recessive models in the Han population but not in the Uygur population...
August 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28899518/relationship-between-obstructive-sleep-apnea-and-neuroimaging-signatures-of-cerebral-small-vessel-disease-in-community-dwelling-older-adults-the-atahualpa-project
#17
Oscar H Del Brutto, Robertino M Mera, Mauricio Zambrano, Pablo R Castillo
BACKGROUND/OBJECTIVES: Evidence of a relationship between obstructive sleep apnea (OSA) and neuroimaging signatures of cerebral small vessel disease (SVD) is limited. The present study aimed to evaluate this association in older adults living in rural Ecuador, where small vessel disease is a major pathogenetic mechanism underlying stroke. METHODS: A representative random sample of Atahualpa residents aged ≥60 years enrolled in the Atahualpa Project neuroimaging substudy underwent a single-night diagnostic polysomnography...
September 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28888808/association-of-high-density-lipoprotein-cholesterol-concentration-with-different-types-of-stroke-and-coronary-heart-disease-the-japan-public-health-center-based-prospective-jphc-study
#18
Isao Saito, Kazumasa Yamagishi, Yoshihiro Kokubo, Hiroshi Yatsuya, Hiroyasu Iso, Norie Sawada, Manami Inoue, Shoichiro Tsugane
BACKGROUND AND AIMS: Although low high-density lipoprotein (HDL) cholesterol concentration is an established risk factor for coronary heart disease (CHD), information regarding subtypes of stroke is very limited, especially in Asian populations. METHODS: A prospective study was conducted among 30,736 individuals aged 40-69 years, who lived in nine communities in Japan and did not have a history of cardiovascular disease (CVD). CHD and stroke, including its subtypes, were assessed, and sex-specific hazard ratios (HRs) and 95% confidence intervals (CIs) for outcomes were estimated according to quintiles of HDL cholesterol using Cox proportional models adjusted for other CVD risk factors...
October 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28870596/common-and-specific-risk-factors-for-ischemic-stroke-in-elderly-differences-based-on-type-of-ischemic-stroke-and-aging
#19
Sayato Fukui, Ryoko Imazeki, Yu Amano, Yousuke Kudo, Kazumitsu Amari, Masahiro Yamamoto, Kikue Todoroki, Yoshimori Ikeya, Takashi Okazaki, Noriharu Yanagimachi, Toru Shizuma, Naoto Fukuyama, Ken Johkura, Hidezo Mori
BACKGROUND: The risk factors among the types of ischemic stroke (atherothrombotic cerebral infarction: ATI, cardio-embolic infarction: CEI, lacunar infarction: LI) in aged stroke patients have rarely been compared to each other. METHODS: We compared the clinical parameters of 300 elderly patients with ischemic stroke, age 65-98years, to 100 age-matched control patients. RESULTS: Comparison by parametric test and logistic regression analysis between all 300 and 100 control patients showed higher systolic and diastolic blood pressures (p<0...
September 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28870545/arterial-stiffness-and-cognitive-impairment
#20
REVIEW
Xiaoxuan Li, Peiyuan Lyu, Yanyan Ren, Jin An, Yanhong Dong
BACKGROUND: Arterial stiffness is one of the earliest indicators of changes in vascular wall structure and function and may be assessed using various indicators, such as pulse-wave velocity (PWV), the cardio-ankle vascular index (CAVI), the ankle-brachial index (ABI), pulse pressure (PP), the augmentation index (AI), flow-mediated dilation (FMD), carotid intima media thickness (IMT) and arterial stiffness index-β. Arterial stiffness is generally considered an independent predictor of cardiovascular and cerebrovascular diseases...
September 15, 2017: Journal of the Neurological Sciences
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