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White matter hypertensities

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https://www.readbyqxmd.com/read/28101804/white-matter-hyperintensities-correlate-to-cognition-and-fiber-tract-integrity-in-older-adults-with-hiv
#1
Christa Watson, Edgar Busovaca, Jessica M Foley, I Elaine Allen, Christopher G Schwarz, Neda Jahanshad, Talia M Nir, Pardis Esmaeili-Firidouni, Benedetta Milanini, Howard Rosen, Owen T Carmichael, Paul M Thompson, Victor G Valcour
Our aim was to examine the clinical relevance of white matter hyperintensities (WMH) in HIV. We used an automated approach to quantify WMH volume in HIV seropositive (HIV+; n = 65) and HIV seronegative (HIV-; n = 29) adults over age 60. We compared WMH volumes between HIV+ and HIV- groups in cross-sectional and multiple time-point analyses. We also assessed correlations between WMH volumes and cardiovascular, HIV severity, cognitive scores, and diffusion tensor imaging variables. Serostatus groups did not differ in WMH volume, but HIV+ participants had less cerebral white matter (mean: 470...
January 18, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28094840/hypertensive-disorders-in-pregnancy-and-later-dementia-a-swedish-national-register-study
#2
Ellika G Andolf, Gunilla C M Sydsjö, Marie K Bladh, Goran Berg, Surendra Sharma
INTRODUCTION: Our aim was to investigate the rate of vascular dementia and dementia in women with previous hypertensive disorders in pregnancy since white matter lesions of the brain and cardiovascular disease are linked both to dementia and hypertensive disorders in pregnancy. MATERIAL AND METHODS: Prospective population based registry study on all women giving birth in Sweden between 1973- 1975 (284 598). Women with and without hypertensive disorders in pregnancy were identified by means of the Swedish Medical Birth Register and linked to the National Patient Register where data on somatic disease later in life were obtained...
January 17, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28089561/characterizing-deep-white-matter-hyperintensities-in-patients-with-symptomatic-isolated-cortical-superficial-siderosis
#3
Dimitri Renard, Lavinia Tatu, Christophe Demattei, Christophe Hirtz, Sylvain Lehmann, Eric Thouvenot
BACKGROUND: In patient with cerebral amyloid angiopathy (CAA) presenting with lobar hemorrhage (LH), magnetic resonance imaging (MRI) white matter hyperintensities (WMH) tend to be predominant in posterior regions with the "multiple subcortical spots" WMH pattern as the most frequent topographical WMH pattern. Our aim was to analyze WMH severity and topographical distribution in patients with cortical superficial siderosis (CSS). METHODS: We retrospectively analyzed MRIs from consecutive symptomatic isolated (i...
January 12, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28051884/the-risk-factors-and-pattern-of-cerebral-microbleeds-in-parkinson-s-disease
#4
Dian He, Chun-Feng Liu, Lan Chu, Ya Li, Da-Fei Xu, Ling Jiao
BACKGROUND AND PURPOSE: Cerebral microbleeds (CMBs) in Parkinson's disease (PD) have been reported recently and concerned increasingly. Our aim was to investigate the risk factors and pattern of CMBs in patients with PD, as well as the influence of risk factors on the pattern of CMBs. METHODS: We retrospectively collected medical and imaging data of 247 patients who underwent brain susceptibility-weighted imaging (SWI). Logistic regression analyses were performed to determine the risk factors of CMBs...
January 4, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28027769/brain-metabolite-alterations-in-eisenmenger-syndrome-evaluation-with-mr-proton-spectroscopy
#5
Dilek Şen Dokumacı, Ferit Doğan, Ali Yıldırım, Fatıma Nurefşan Boyacı, Erol Bozdoğan, Bülent Koca
OBJECTIVE: Eisenmenger syndrome (ES) is a life-threatening disease characterized by pulmonary hypertension and cyanosis in patients with congenital heart diseases. The aim of this study was to determine the brain metabolite changes in Eisenmenger syndrome compared with a control group using MR proton spectroscopy. METHODS AND MATERIALS: The study included 10 children (3 male, 7 female) with congenital heart diseases and a diagnosis of Eisenmenger syndrome. The control group consisted of 10 healthy volunteer children...
January 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28018214/total-cerebral-small-vessel-disease-mri-score-is-associated-with-cognitive-decline-in-executive-function-in-patients-with-hypertension
#6
Renske Uiterwijk, Robert J van Oostenbrugge, Marjolein Huijts, Peter W De Leeuw, Abraham A Kroon, Julie Staals
Objectives: Hypertension is a major risk factor for white matter hyperintensities (WMH), lacunes, cerebral microbleeds, and perivascular spaces, which are MRI markers of cerebral small vessel disease (SVD). Studies have shown associations between these individual MRI markers and cognitive functioning and decline. Recently, a "total SVD score" was proposed in which the different MRI markers were combined into one measure of SVD, to capture total SVD-related brain damage. We investigated if this SVD score was associated with cognitive decline over 4 years in patients with hypertension...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28017759/the-monro-kellie-doctrine-in-action-posterior-reversible-leukoencephalopathy-syndrome-pres-due-to-intracranial-hypotension-from-lumbo-peritoneal-shunt-placement
#7
Ioannis Karakis, Audrey H Nuccio, Jordan P Amadio, Arthur J Fountain
BACKGROUND: Posterior reversible leukoencephalopathy syndrome (PRES) is linked to various etiologies, foremost systemic hypertension. Its association with intracranial hypotension (IH), a potential sequela of various neurosurgical procedures, is under-recognized. We report a case of lumbo-peritoneal shunt induced IH resulting in PRES with the goal to increase awareness, and elaborate on the potential biological mechanism, based on the Monro-Kellie hypothesis. CASE DESCRIPTION: A 26-year-old woman with acquired immunodeficiency syndrome and epilepsy was admitted for recurrent cryptococcal meningitis and breakthrough seizures...
December 22, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27994357/clinical-correlates-of-leukoaraiosis-a-study-of-175-patients
#8
Rustom S Wadia, Sandesh K Ghiya, Joshita Singh, Santosh M Sontakke, Vishwas Bharadwaj, Rahul V Sonawane, Yogesh P Bade, K Shrikanth, Nikhil Goli, Rohit Singh Chauhan, Nilesh A Nadkarni
BACKGROUND: In India, the correlates of leukoaraiosis (LA) have not been widely reported. This study was designed to investigate the factors which correlate with LA. MATERIALS AND METHODS: We included patients with LA who consented for the study and graded their severity on the basis of Fazekas scale. We excluded patients with LA who did not consent/cooperate for the study as also patients with other white matter changes which mimic LA. RESULTS: LA is a common and under-rated cause of disability...
October 2016: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/27981440/visceral-fat-is-associated-with-brain-structure-independent-of-human-immunodeficiency-virus-infection-status
#9
Jordan E Lake, Mikhail Popov, Wendy S Post, Frank J Palella, Ned Sacktor, Eric N Miller, Todd T Brown, James T Becker
The combined effects of human immunodeficiency virus (HIV), obesity, and elevated visceral adipose tissue (VAT) on brain structure are unknown. In a cross-sectional analysis of Multicenter AIDS Cohort Study (MACS) participants, we determined associations between HIV serostatus, adiposity, and brain structure. Men (133 HIV+, 84 HIV-) in the MACS Cardiovascular 2 and magnetic resonance imaging (MRI) sub-studies with CT-quantified VAT and whole brain MRI measured within 1 year were assessed. Voxel-based morphometry analyzed brain volumes...
December 15, 2016: Journal of Neurovirology
https://www.readbyqxmd.com/read/27980126/prevention-of-stroke-in-patients-with-silent-cerebrovascular-disease-a-scientific-statement-for-healthcare-professionals-from-the-american-heart-association-american-stroke-association
#10
Eric E Smith, Gustavo Saposnik, Geert Jan Biessels, Fergus N Doubal, Myriam Fornage, Philip B Gorelick, Steven M Greenberg, Randall T Higashida, Scott E Kasner, Sudha Seshadri
Two decades of epidemiological research shows that silent cerebrovascular disease is common and is associated with future risk for stroke and dementia. It is the most common incidental finding on brain scans. To summarize evidence on the diagnosis and management of silent cerebrovascular disease to prevent stroke, the Stroke Council of the American Heart Association convened a writing committee to evaluate existing evidence, to discuss clinical considerations, and to offer suggestions for future research on stroke prevention in patients with 3 cardinal manifestations of silent cerebrovascular disease: silent brain infarcts, magnetic resonance imaging white matter hyperintensities of presumed vascular origin, and cerebral microbleeds...
December 15, 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27977393/impact-of-hypertension-on-cognitive-function-a-scientific-statement-from-the-american-heart-association
#11
Costantino Iadecola, Kristine Yaffe, José Biller, Lisa C Bratzke, Frank M Faraci, Philip B Gorelick, Martha Gulati, Hooman Kamel, David S Knopman, Lenore J Launer, Jane S Saczynski, Sudha Seshadri, Adina Zeki Al Hazzouri
BACKGROUND: Age-related dementia, most commonly caused by Alzheimer disease or cerebrovascular factors (vascular dementia), is a major public health threat. Chronic arterial hypertension is a well-established risk factor for both types of dementia, but the link between hypertension and its treatment and cognition remains poorly understood. In this scientific statement, a multidisciplinary team of experts examines the impact of hypertension on cognition to assess the state of the knowledge, to identify gaps, and to provide future directions...
December 2016: Hypertension
https://www.readbyqxmd.com/read/27956564/n-terminal-pro-brain-natriuretic-peptide-and-subclinical-brain-small-vessel-disease
#12
Andrea Vilar-Bergua, Iolanda Riba-Llena, Anna Penalba, Luz María Cruz, Joan Jiménez-Balado, Joan Montaner, Pilar Delgado
OBJECTIVE: To study the association of N-terminal pro-brain natriuretic peptide (NT-proBNP) with several brain MRI markers of brain vascular disease in a sample of participants free of stroke and dementia. METHODS: NT-proBNP plasma level was determined by means of a sandwich immunoassay method in a cohort study comprising 278 hypertensive patients. The presence of silent brain infarcts, brain microbleeds, enlarged perivascular spaces, and white matter hyperintensity volumes was assessed by brain MRI...
December 13, 2016: Neurology
https://www.readbyqxmd.com/read/27951412/increased-cortical-capillary-transit-time-heterogeneity-in-alzheimer-s-disease-a-dsc-mri-perfusion-study
#13
Simon F Eskildsen, Louise Gyldensted, Kartheeban Nagenthiraja, Rune B Nielsen, Mikkel Bo Hansen, Rikke B Dalby, Jesper Frandsen, Anders Rodell, Carsten Gyldensted, Sune N Jespersen, Torben E Lund, Kim Mouridsen, Hans Brændgaard, Leif Østergaard
Alzheimer's disease (AD) is characterized by the accumulation of hyperphosphorylated tau and neurotoxic Aβ in the brain parenchyma. Hypoxia caused by microvascular changes and disturbed capillary flows could stimulate this build-up of AD-specific proteins in the brain. In this study, we compared cerebral microcirculation in a cohort of AD and mild cognitive impairment (MCI) patients with that of age-matched controls, all without a history of diabetes or of hypertension for more than 2 years, using dynamic susceptibility contrast magnetic resonance imaging (DSC-MRI)...
February 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/27938433/deep-microbleeds-and-periventricular-white-matter-disintegrity-are-independent-predictors-of-attention-executive-dysfunction-in-non-dementia-patients-with-small-vessel-disease
#14
Wen-Wei Cao, Yao Wang, Quan Dong, Xue Chen, Yan-Sheng Li, Yan Zhou, Li Gao, Ye Deng, Qun Xu
BACKGROUND: Cerebral small vessel disease (SVD) is the common cause of cognitive decline in the old population. MRI can be used to clarify its mechanisms. However, the surrogate markers of MRI for early cognitive impairment in SVD remain uncertain to date. We investigated the cognitive impacts of cerebral microbleeds (CMBs), diffusion tensor imaging (DTI), and brain volumetric measurements in a cohort of post-stroke non-dementia SVD patients. METHODS: Fifty five non-dementia SVD patients were consecutively recruited and categorized into two groups as no cognitive impairment (NCI) (n = 23) or vascular mild cognitive impairment (VaMCI) (n = 32)...
December 12, 2016: International Psychogeriatrics
https://www.readbyqxmd.com/read/27904123/posterior-reversible-encephalopathy-syndrome-with-extensive-deep-white-matter-lesions-including-the-temporal-pole
#15
Junichiro Ohira, Nobuyuki Mori, Shunsuke Kajikawa, Takeshi Nakamura, Tetsuya Arisato, Makio Takahashi
Posterior reversible encephalopathy syndrome (PRES) typically affects the posterior subcortical white matter. We report the case of a 55-year-old man with atypical PRES, who had malignant hypertension and renal dysfunction. Magnetic resonance imaging of the brain revealed extensive vasogenic edema in the deep white matter including the temporal pole, as well as in the brainstem and cerebellum. Antihypertensive therapy and hemodialysis contributed to both clinical and radiological improvement. Involvement of the deep white matter including the temporal pole, which is rarely affected in an ischemic stroke, should be recognized as a potential sign of PRES...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27837396/prognostic-importance-of-ambulatory-blood-pressure-monitoring-in-resistant-hypertension-is-it-all-that-matters
#16
REVIEW
Claudia R L Cardoso, Gil F Salles
PURPOSE OF REVIEW: This article reviews the current knowledge on the prognostic importance of ambulatory blood pressure (BP) monitoring parameters in patients with apparent treatment-resistant hypertension. RECENT FINDINGS: Although mean 24-h ambulatory BPs have been consistently established as better cardiovascular risk predictors than clinic (office) BPs in several clinical settings, and ambulatory BP monitoring is generally indicated in patients with resistant hypertension; there were only five previous longitudinal prospective studies that specifically evaluated the prognostic importance of ambulatory BP monitoring parameters in resistant hypertensive patients...
December 2016: Current Hypertension Reports
https://www.readbyqxmd.com/read/27795711/reversible-posterior-leukoencephalopathy-syndrome-developing-after-restart-of-sunitinib-therapy-for-metastatic-renal-cell-carcinoma
#17
Shinji Fukui, Yuta Toyoshima, Takeshi Inoue, Yoriaki Kagebayashi, Shoji Samma
A 64-year-old Japanese man had started molecular-targeted therapy with sunitinib for lymph node metastasis 5 years after nephrectomy for left renal cell carcinoma (clear cell carcinoma, G2, pT2N0M0). He was transported to our emergency department because of generalized tonic-clonic seizure, vision loss, and impaired consciousness with acute hypertension after 8 cycles of treatment (2 years after the initiation of sunitinib therapy, including a drug withdrawal period for one year). MRI of the brain (FLAIR images) showed multiple high-intensity lesions in the white matter of the occipital and cerebellar lobes, dorsal brain stem, and left thalamus...
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27790395/white-matter-disease-in-midlife-is-heritable-related-to-hypertension-and-shares-some-genetic-influence-with-systolic-blood-pressure
#18
Christine Fennema-Notestine, Linda K McEvoy, Randy Notestine, Matthew S Panizzon, Wai-Ying Wendy Yau, Carol E Franz, Michael J Lyons, Lisa T Eyler, Michael C Neale, Hong Xian, Ruth E McKenzie, William S Kremen
White matter disease in the brain increases with age and cardiovascular disease, emerging in midlife, and these associations may be influenced by both genetic and environmental factors. We examined the frequency, distribution, and heritability of abnormal white matter and its association with hypertension in 395 middle-aged male twins (61.9 ± 2.6 years) from the Vietnam Era Twin Study of Aging, 67% of whom were hypertensive. A multi-channel segmentation approach estimated abnormal regions within the white matter...
2016: NeuroImage: Clinical
https://www.readbyqxmd.com/read/27773590/variant-type-of-posterior-reversible-encephalopathy-syndrome-with-diffuse-cerebral-white-matter-and-brainstem-involvement-associated-with-intracranial-hemorrhage
#19
Yin-Xi Zhang, Yang Zheng, Bi-Jun Zhang, Yun Zhang, Mei-Ping Ding, Bao-Rong Zhang
Posterior reversible encephalopathy syndrome (PRES) is a clinical-radiological syndrome characterized by reversible vasogenic edema typically at a posterior location of the cerebrum. PRES with prominent brainstem or basal ganglia involvement is defined as central-variant, which is rare. We herein report an atypical case of a 35-year-old man with a 2-year history of untreated hypertension who complained of recurrent dizziness. The patient presented with brainstem and diffuse white matter involvement associated with intracranial hemorrhage and recovered fully after therapy...
December 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27753892/os-01-01-association-of-lp-pla2-mass-and-aysmptomatic-intracranial-and-extracranial-arterial-stenosis-in-hypertension-patients
#20
Yan Wang, Jin Zhang, Yuesheng Qian, Xiaofeng Tang, Huawei Ling, Kemin Chen, Pingjin Gao, Dingliang Zhu
OBJECTIVE: Intracranial arterial stenosis (ICAS) is a common cause of ischemic stroke in Asians, whereas whites tend to have more extracranial lesions. Lipoprotein-associated phospholipase A2 (Lp-PLA2) has been associated with ischemic stroke by a large amount of work. However, there are few studies focusing on the relationship of Lp-PLA2 and asymptomatic ICAS or extracranial arterial stenosis (ECAS). We hereby sought to explore the relationship of Lp-PLA2 and ICAS, ECAS and concurrent stenosis in stroke-free hypertensive patients in Chinese population...
September 2016: Journal of Hypertension
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