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Silent Cerebral Infarction

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https://www.readbyqxmd.com/read/29279460/silent-cerebral-infarction-in-east-asian-vs-non-asian-atrial-fibrillation-patients%C3%A3-meta-analysis
#1
Keitaro Senoo, Yusuke Kondo, Yoshio Kobayashi, Gregory Yh Lip
BACKGROUND: Atrial fibrillation (AF) is the most common arrhythmia in the ageing population in East Asia. Silent cerebral infarction (SCI) is defined as cerebral infarction in the absence of corresponding clinical symptoms, and is a highly prevalent and morbid condition in AF. SCI is increasingly being recognized as a risk factor for future stroke, which can lead to cognitive decline or dementia. The latter is an increasingly common health problem in East Asia.Methods and Results:We conducted a meta-analysis to compare the association of AF and SCI between East Asian and non-Asian patients...
December 27, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29244126/silent-cerebral-small-vessel-disease-twice-as-prevalent-in-middle-aged-well-controlled-cart-treated-hiv-infected-individuals-than-hiv-uninfected-individuals
#2
Antoine Moulignier, Julien Savatovsky, Lambert Assoumou, François-Xavier Lescure, Cédric Lamirel, Ophelia Godin, Nadia Valin, Roland Tubiana, Ana Canestri, Pascal Roux, Jean-Claude Sadik, Laurence Salomon, Marie Abrivard, Christine Katlama, Yazdan Yazdanpanah, Gilles Pialoux, Pierre-Marie Girard, Dominique Costagliola
Background: Silent cerebral small-vessel disease (CSVD) is defined as white matter hyperintensities, silent brain infarction or microbleeds. CSVD is responsible for future vascular events, cognitive impairment, frailty and shorter survival. CSVD prevalence among middle-aged persons living with well-controlled HIV infection (PLHIVs) is unknown. Methods: ANRS EP51 MicroBREAK (NCT02082574) is a cross-sectional study with prospective enrollment of treated PLHIVs, ≥50 years old with viral load controlled for ≥12 months, and frequency age- and sex-matched HIV-uninfected controls (HUCs)...
December 13, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29228325/episodic-migraine-and-white-matter-hyperintensities-association-of-pain-lateralization
#3
Ahmet Yalcin, Mustafa Ceylan, Omer Faruk Bayraktutan, Adem Akkurt
Background: Migraine pathophysiology involves a neuronal mechanism that is closely associated with the neuronal activation of peripheral trigeminal nociceptive pathways. It also involves a vascular mechanism that is supported by studies concerning the presence of migraine with aura in various vascular diseases. Migraine is associated with silent infarct-like lesions and white matter hyperintensities (WMHs) that can be encountered during magnetic resonance imaging. In this study, we aimed to demonstrate the migraine-WMH link based on pain lateralization...
December 8, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29209479/a-brief-psychotic-episode-with-depressive-symptoms-in-silent-right-frontal-lobe-infarct
#4
Salziyan Badrin, Noraini Mohamad, Nor Akma Yunus, Maryam Mohd Zulkifli
Psychiatric symptoms may be related to a silent cerebral infarct, a phenomenon that has been described previously in literature. Acute psychosis or other neuropsychiatric symptoms including depression may present in stroke patients and patients with lesions either within the prefrontal or occipital cortices, or in subcortical areas such as the basal ganglia, thalamus, mid-brain, and brainstem. Psychosis in clinical stroke or in silent cerebral infarction is uncommon and not well documented in the literature...
November 2017: Korean Journal of Family Medicine
https://www.readbyqxmd.com/read/29201539/assessment-of-cerebral-blood-flow-with-magnetic-resonance-imaging-in-children-with-sickle-cell-disease-a-quantitative-comparison-with-transcranial-doppler-ultrasonography
#5
Paula L Croal, Jackie Leung, Przemyslaw Kosinski, Manohar Shroff, Isaac Odame, Andrea Kassner
Introduction: Transcranial Doppler ultrasonography (TCD) is a clinical tool for stratifying ischemic stroke risk by identifying abnormal elevations in blood flow velocity (BFV) in the middle cerebral artery (MCA). However, TCD is not effective at screening for subtle neurologic injury such as silent cerebral infarcts. To better understand this disparity, we compared TCD measures of BFV with tissue-level cerebral blood flow (CBF) using arterial spin-labeling MRI in children with and without sickle cell disease, and correlated these measurements against clinical hematologic measures of disease severity...
November 2017: Brain and Behavior
https://www.readbyqxmd.com/read/29181153/efficacy-of-alogliptin-combined-with-motor-imagery-under-hyperbaric-oxygen-in-diabetic-nephropathy-with-silent-cerebral-infarction
#6
Danyan Chen, Xiaolong Huang, Hua Gan, Xiaogang Du, Song Lu, Rongxi Huang, Ke Liu, Binghan Zhang
In the present study, we evaluated the curative effect of dipeptidyl peptidase-IV (DPP-IV) inhibitor alogliptin combined with motor imagery under hyperbaric oxygen in diabetic nephropathy (DN) with silent cerebral infarction (SCI). Two-hundred newly diagnosed DN patients with and without SCI were included. The SCI patients were divided into two treatment groups: Alogliptin (A group, n=50) and alogliptin combined with motor imagery under hyperbaric oxygen (B group, n=50). The degrees of neurocognitive dysfunction were evaluated at baseline and after 6 months of treatment...
November 2017: Biomedical Reports
https://www.readbyqxmd.com/read/29162363/sex-differences-in-associations-between-blood-lipids-and-cerebral-small-vessel-disease
#7
Z-G Yin, Q-S Wang, K Yu, W-W Wang, H Lin, Z-H Yang
BACKGROUND AND AIMS: Dyslipidemia predicts higher risk of coronary events and stroke and might be associated with cerebral small vessel disease (SVD). Previous studies linking blood lipids and SVD have yielded inconsistent results, which may be attributable to sex differences in lipids metabolism. The aim of this study was to investigate the relationships between blood lipids and SVD in neurologically healthy men and women. METHODS AND RESULTS: Consecutive 817 people aged 50 years or more were enrolled and underwent magnetic resonance imaging scans to evaluate the periventricular white matter lesions (PVWMLs), deep white matter lesions (DWMLs) and silent brain infarction (SBI)...
October 10, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/29153271/subacute-corticobasal-syndrome-following-internal-carotid-endarterectomy
#8
A Marques, N Bourgois, T Vidal, A Ferrier, S Mathais, C Merlin, C Valla, E De Schlichting, B Jean, D Deffond, F Durif
The present report is of two patients who, immediately after internal carotid endarterectomy, presented with unexplained hemiplegia, despite normal findings on repeated MRI scans, which secondarily evolved into homolateral subacute corticobasal syndrome (CBS), with asymmetrical hemispheric hypometabolism and evidence of dopaminergic denervation. This prompted us to propose an hypothesis of transient cerebral hypoxia arising during the surgical clamping period that might have provoked a prolonged or permanent functional lesion of the left hemisphere and basal ganglia, with no visible infarction on MRI but only synaptic rearrangement of the neural networks, thereby revealing or exacerbating a potentially preexisting silent impairment...
November 15, 2017: Revue Neurologique
https://www.readbyqxmd.com/read/29120564/developmental-venous-anomaly-serving-as-a-draining-vein-of-brain-arteriovenous-malformation
#9
Lukas Rasulić, Filip Vitošević, Krešimir Rotim, Svetlana Milošević Medenica, Dragoslav Nestorović
Developmental venous anomalies are cerebral vascular malformations that present normal venous drainage of cerebral tissue. With increased and accessible usage of modern diagnostic tools, they are now one of the most commonly diagnosed cerebral vascular malformations. Although developmental venous anomalies are considered to be benign lesions, association with arteriovenous malformation renders malignant potential to this combined pathology. In the case presented, these malformations were clinically silent and diagnosed accidentally, so they were not treated either with surgery, endovascular surgery or radiosurgery, considering the possible complications such as venous infarction of the brain, and because there was no obvious neurologic deficit related to this pathology...
March 2017: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29107441/real-life-experience-with-hydroxyurea-in-sickle-cell-disease-a-multicenter-study-in-a-cohort-of-patients-with-heterogeneous-descent
#10
Paolo Rigano, Lucia De Franceschi, Laura Sainati, Antonio Piga, Frédéric B Piel, Maria Domenica Cappellini, Carmelo Fidone, Nicoletta Masera, Giovanni Palazzi, Barbara Gianesin, Gian Luca Forni
We conducted the first nation-wide cohort study of sickle cell disease (SCD) in Italy, a Southern European country exposed to intense recent flux migration from endemic areas for SCD. We evaluate the impact of hydroxyurea on a total of 652 pediatric and adult patients from 33 Reference Centers for SCD (mean age 24.5±15years, 51.4% males). Hydroxyurea median treatment duration was 7years (range: <1year to 29years) at a mean therapeutic dose of 18±4.7mg/kg/day. Hydroxyurea was associated with a significant increase in mean total and fetal hemoglobin and a significant decrease in mean hemoglobin S, white blood and platelet counts, and lactate dehydrogenase levels...
October 9, 2017: Blood Cells, Molecules & Diseases
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
#11
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/29046363/serum-neurofilament-light-is-sensitive-to-active-cerebral-small-vessel-disease
#12
Thomas Gattringer, Daniela Pinter, Christian Enzinger, Thomas Seifert-Held, Markus Kneihsl, Simon Fandler, Alexander Pichler, Christian Barro, Svenya Gröbke, Margarete Voortman, Lukas Pirpamer, Edith Hofer, Stefan Ropele, Reinhold Schmidt, Jens Kuhle, Franz Fazekas, Michael Khalil
OBJECTIVE: To explore whether serum neurofilament light chain protein (NfL) levels are increased in patients with MRI-confirmed recent small subcortical infarcts (RSSI) compared to healthy controls and to determine the subsequent course and determinants of NfL levels in a longitudinal manner. METHODS: In a prospectively collected group of symptomatic patients with an RSSI (n = 79, mean age 61 ± 11 years, 67% male), we analyzed brain MRI and serum NfL using a Single Molecule Array (Simoa) assay at baseline and at 3 and 15 months after stroke...
October 18, 2017: Neurology
https://www.readbyqxmd.com/read/29018134/neuronal-sirt1-silent-information-regulator-2-homologue-1-regulates-glycolysis-and-mediates-resveratrol-induced-ischemic-tolerance
#13
Kevin B Koronowski, Nathalie Khoury, Isabel Saul, Zachary B Loris, Charles H Cohan, Holly M Stradecki-Cohan, Kunjan R Dave, Juan I Young, Miguel A Perez-Pinzon
BACKGROUND AND PURPOSE: Resveratrol, at least in part via SIRT1 (silent information regulator 2 homologue 1) activation, protects against cerebral ischemia when administered 2 days before injury. However, it remains unclear if SIRT1 activation must occur, and in which brain cell types, for the induction of neuroprotection. We hypothesized that neuronal SIRT1 is essential for resveratrol-induced ischemic tolerance and sought to characterize the metabolic pathways regulated by neuronal Sirt1 at the cellular level in the brain...
November 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28983720/symptomatic-and-silent-cerebral-infarction-following-surgical-clipping-of-unruptured-intracranial-aneurysms-incidence-risk-factors-and-clinical-outcome
#14
Maogui Li, Jun Wu, Xin Chen, Pengjun Jiang, Fan Yang, Yonggang Ma, Zhengsong Li, Yong Cao, Shuo Wang
Cerebral infarction (CI) associated with clipping of unruptured intracranial aneurysms (UIAs) has not been completely studied. The role of individual and operative characteristics is not known, and the risk of silent CI has not been well described. To determine the incidence, risk factors, and clinical outcome of postoperative CI, we retrospectively analyzed 388 consecutive patients undergoing clipping of UIAs between January 2012 and December 2015. We reviewed the pre- and postoperative computed tomography (CT) images of each patient...
October 5, 2017: Neurosurgical Review
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
#15
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/28888980/arctigenin-attenuates-ischemic-stroke-via-sirt1-dependent-inhibition-of-nlrp3-inflammasome
#16
Shimeng Zhang, Liangjun Jiang, Fengyuan Che, Yucheng Lu, Zhongxiang Xie, Hao Wang
Arctigenin (ARC), a phenylpropanoid dibenzylbutyrolactone lignan derived from Arctium lappa L, has been reported to protect against cerebral ischemia injury in rats, but the underlying mechanism is unclear. In this study, we investigated whether ARC ameliorated ischemic stroke by inhibiting NLRP3 inflammasome-derived neuroinflammation and whether SIRT1 signaling was involved in this process. ARC (20 mg/kg) or vehicle were intraperitoneally injected to Sprague-Dawley rats for 3 days before middle cerebral artery occlusion (MCAO) surgery performed...
November 4, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28870552/high-neutrophil-to-lymphocyte-ratio-is-associated-with-white-matter-hyperintensity-in-a-healthy-population
#17
Ki-Woong Nam, Hyung-Min Kwon, Han-Yeong Jeong, Jin-Ho Park, Sang Hyuck Kim, Su-Min Jeong, Tae Gon Yoo, Shinhye Kim
High neutrophil to lymphocyte ratio (NLR) is correlated with the occurrence, morbidity and mortality of cerebrovascular disease as a marker of systemic inflammation. However, its effect on cerebral white matter hyperintensity (WMH) is unclear. We investigated high NLR burden as a surrogate marker of WMH volume in a healthy population. Healthy subjects with voluntary health check-ups between January 2006 and December 2013, including brain MRI and laboratory examination, were collected. WMH volumes were rated quantitatively...
September 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28864674/neurologic-complications-of-sickle-cell-disease-in-africa-a-systematic-review-and-meta-analysis
#18
REVIEW
Jean Jacques Noubiap, Michel K Mengnjo, Nicolas Nicastro, Joseph Kamtchum-Tatuene
OBJECTIVE: To summarize prevalence data on the neurologic complications of sickle cell disease (SCD) in Africa. METHODS: We searched EMBASE, PubMed, and African Index Medicus to identify all relevant articles published from inception to May 31, 2016. Each study was reviewed for methodologic quality. A random-effects model was used to estimate the prevalence of neurologic complications of SCD across studies. RESULTS: Thirty-one studies were included...
October 3, 2017: Neurology
https://www.readbyqxmd.com/read/28855432/prospective-study-on-the-incidence-of-cerebrovascular-disease-after-coronary-angiography
#19
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/28834316/history-of-parvovirus-b19-infection-is-associated-with-silent-cerebral-infarcts
#20
Foluso J Ogunsile, Kelli L Currie, Mark Rodeghier, Adetola Kassim, Michael R DeBaun, Deva Sharma
BACKGROUND: The relationship between silent cerebral infarcts (SCIs) and history of parvovirus B19 (B19V) has not been systematically evaluated. As an ancillary study from the Silent Cerebral Infarct Trial (SIT) (NCT00072761), we tested the hypothesis that a history of B19V infection is associated with an increased prevalence of SCIs in children with sickle cell anemia. PROCEDURE: We used a retrospective cross-sectional cohort study design; each participant underwent a brain magnetic resonance imaging (MRI) scan and medical record review for prior B19V infection (n = 958)...
January 2018: Pediatric Blood & Cancer
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