Filtered By:
Condition: Hypertension
Procedure: MRI Scan

This page shows you your search results in order of relevance. This is page number 2.

Order by Relevance | Date

Total 404 results found since Jan 2013.

Change in CSF Dynamics Responsible for ICP Elevation After Ischemic Stroke in Rats: a New Mechanism for Unexplained END?
AbstractIt has been proposed that intracranial pressure (ICP) elevation and collateral failure are responsible for unexplained early neurological deterioration (END) in stroke. The study ’s aims were to investigate whether cerebral spinal fluid (CSF) dynamics, rather than edema, are responsible for elevation of ICP after ischemic stroke. Permanent middle cerebral artery occlusion (pMCAO) was induced with an intraluminal filament. At 24 h after stroke, baseline ICP was measured an d CSF dynamics were probed via a steady-state infusion method. Diffusion-weighted imaging (DWI) and T2-weighted magnetic resonance imaging wer...
Source: Translational Stroke Research - August 14, 2019 Category: Neurology Source Type: research

Leukoaraiosis and Increased Cerebral Susceptibility to Ischemia: Lack of Confounding by Carotid Disease Stroke
Conclusions The association with more severe ischemic events (stroke versus TIA) and infarction on imaging is consistent with leukoaraiosis being a marker of increased cerebral susceptibility to ischemia. In contrast, the presence, severity of, and risk factors for atheromatous disease showed no association with leukoaraiosis, suggesting that these are two unrelated disease processes.
Source: JAHA:Journal of the American Heart Association - August 20, 2013 Category: Cardiology Authors: Schulz, U. G., Gruter, B. E., Briley, D., Rothwell, P. M. Tags: Stroke Source Type: research

Association Between Endogenous Testosterone and Cerebrovascular Disease in the ARIC Study (Atherosclerosis Risk in Communities) Clinical Sciences
Conclusions—After controlling for atherosclerotic risk factors, there was no association between endogenous testosterone and incident clinical stroke or ischemic brain changes in community-dwelling men.
Source: Stroke - October 23, 2016 Category: Neurology Authors: Srinath, R., Gottesman, R. F., Hill Golden, S., Carson, K. A., Dobs, A. Tags: Aging, Risk Factors, Ischemic Stroke Original Contributions Source Type: research

Comparison between angiotensin‐converting enzyme inhibitors and angiotensin receptor blockers on the risk of stroke recurrence and longitudinal progression of white matter lesions and silent brain infarcts on MRI (CEREBRAL study): rationale, design, and methodology
ConclusionsOur study will clarify whether angiotensin‐converting enzyme inhibitors or angiotensin II receptor blockers are more effective for preventing primary and recurrence of ischemic stroke, including the progression of asymptomatic cerebral lesions on magnetic resonance imaging, in elderly hypertensive patients.
Source: International Journal of Stroke - July 9, 2013 Category: Neurology Authors: Shigeru Yamano, Manabu Horii, Takeshi Takami, Mio Sakuma, Takeshi Morimoto, Sadanori Okada, Toshiaki Taoka, Kimihiko Kichikawa, Hiroyuki Sasamura, Hiroshi Itoh, Yoshiko Furuya, Satoshi Ueno, Tomoaki Imamura, Seigo Sugiyama, Hisao Ogawa, Yoshihiko Saito Tags: Protocols Source Type: research

Racial-Ethnic Differences in Lacunar Infarction in a Multiethnic Stroke Population
This study examined racial-ethnic differences in the clinical presentation and imaging findings of a racially-ethnically diverse population with acute LIs. Patients with acute LIs were identified over a 3-year period. Baseline clinical characteristics, vascular risk factors, and magnetic resonance imaging findings were analyzed. Comparisons were made between African Americans, Caribbean blacks, Caribbean Hispanics, and non-Hispanic whites. During the study period, 1036 patients with ischemic stroke were admitted, 194 of whom (25%) had a LI. The proportion of LI was the highest in Caribbean blacks (40%) and lowest in non-Hi...
Source: Journal of Stroke and Cerebrovascular Diseases - August 8, 2011 Category: Neurology Authors: Sebastian Koch, Ritu Gupta, Mark S. McClendon, Jose G. Romano Tags: Original Articles Source Type: research

Prevalence and Risk Factors of Acute Incidental Infarcts Clinical Sciences
Conclusions— AII are more likely to be present in those with cognitive impairment. Although a cause–effect relationship between the presence of AII and cognitive impairment is plausible, the association may be because of under-reporting of symptoms by individuals with cognitive impairment. The association between AII and cerebral microbleeds may indicate cerebral vasculopathy, independent of traditional vascular risk factors.
Source: Stroke - September 28, 2015 Category: Neurology Authors: Saini, M., Suministrado, M. S. P., Hilal, S., Dong, Y. H., Venketasubramanian, N., Ikram, M. K., Chen, C. Tags: Acute Stroke Syndromes Clinical Sciences Source Type: research

Acute Cerebral Venous Thrombosis Clinical Sciences
Background and Purpose—Cerebral venous thrombosis (CVT) affects venous hemodynamics and can provoke severe stroke and chronic intracranial hypertension. We sought to comprehensively analyze 3-dimensional blood flow and hemodynamic alterations during acute CVT including collateral recruitment and at follow-up.Methods—Twenty-two consecutive patients with acute CVT were prospectively included and underwent routine brain magnetic resonance imaging (MRI) and 4-dimensional flow MRI at 3 T for the in vivo assessment of cerebral blood flow. Neurological and MRI follow-up at 6 months was performed in 18 patients.Results—Three...
Source: Stroke - February 26, 2017 Category: Neurology Authors: Florian Schuchardt, Anja Hennemuth, Laure Schroeder, Stephan Meckel, Michael Markl, Thomas Wehrum, Andreas Harloff Tags: Magnetic Resonance Imaging (MRI), Complications, Cerebrovascular Disease/Stroke, Intracranial Hemorrhage, Thrombosis Original Contributions Source Type: research

Effect of Antihypertensive Medication on Cerebral Small Vessel Disease Brief Report
Conclusions—AHM has a protective effect on the progression of white matter hyperintensities, but no effect on brain atrophy. There are no trials on the effect of AHM on lacunes, microbleeds, enlarged perivascular spaces, or acute small subcortical infarcts.
Source: Stroke - May 25, 2018 Category: Neurology Authors: Tessa van Middelaar, Tanja E. Argillander, Floris H.B.M. Schreuder, Jaap Deinum, Edo Richard, Catharina J.M. Klijn Tags: Primary Prevention, Hypertension, Magnetic Resonance Imaging (MRI), Meta Analysis, Cerebrovascular Disease/Stroke Brief Reports Source Type: research

Anxiety in Patients With Acute Ischemic Stroke: Risk Factors and Effects on Functional Status
Conclusion: Depressive symptoms are the major correlates of PSA while more severe PSA is associated with poorer ADL and health-related QOL. Acute lesions involving CHWM may correlate with PSA in ischemic stroke patients with mild-to-moderate neurologic deficits, supporting a lesion-location hypothesis in PSA.IntroductionAnxiety is prevalent after stroke and occurs in about one-quarter of stroke survivors (1, 2). Poststroke anxiety (PSA) may have a negative impact on quality of life (QOL) of stroke survivors, affecting their rehabilitation (3). Furthermore, one prospective study found that severe anxiety symptoms were assoc...
Source: Frontiers in Psychiatry - April 16, 2019 Category: Psychiatry Source Type: research

Stroke Dysbiosis Index (SDI) in Gut Microbiome Are Associated With Brain Injury and Prognosis of Stroke
Conclusions: We developed an index to measure gut microbiota dysbiosis in stroke patients; this index was significantly correlated with patients' outcome and was causally related to outcome in a mouse model of stroke. Our model facilitates the potential clinical application of gut microbiota data in stroke and adds quantitative evidence linking the gut microbiota to stroke. Introduction Ischemic stroke imposes a heavy burden on society, with 24.9 million cases worldwide (1). Although intravenous thrombolysis and endovascular treatment greatly improve some patients' prognosis, the prognosis for most pa...
Source: Frontiers in Neurology - April 23, 2019 Category: Neurology Source Type: research

A Post-hoc Study of D-Amino Acid Oxidase in Blood as an Indicator of Post-stroke Dementia
In conclusion, our data support that plasma DAO levels were increased in PSD patients and correlated with brain WMH, independent of age, gender, hypertension, and renal function. Plasma DAO levels may therefore aid in PSD diagnosis. Introduction Stroke is a risk factor for both vascular dementia and Alzheimer's disease (1, 2). Functional recovery develops over the course of 26 weeks after a stroke (3), but the survivors are often left with disabilities. In addition to the sequelae of acute neuronal damage, the 1-year post-stroke dementia (PSD) rates after first-ever and recurrent stroke are ~10 and 30...
Source: Frontiers in Neurology - April 25, 2019 Category: Neurology Source Type: research

Frequency of Hemorrhage on Follow Up Imaging in Stroke Patients Treated With rt-PA Depending on Clinical Course
Conclusions: Frequency of hemorrhagic transformation in Routine follow-up brain imaging and consecutive changes in therapeutic management were different depending on clinical course measured by NHISS score. Introduction Brain imaging 24–36 h after systemic thrombolysis for acute ischemic stroke is recommended in American Stroke Association and European Stroke Organization guidelines (1, 2). Brain imaging is performed to detect secondary bleeding or hemorrhagic transformation in order to adapt medical stroke prevention if necessary. Guideline recommendations are based on the results of the first study on rt-PA...
Source: Frontiers in Neurology - April 15, 2019 Category: Neurology Source Type: research

Propensity Score-Matched Analysis of Lesion Patterns in Stroke Patients With Patent Foramen Ovale and Patients With Spontaneous Intracranial Artery Dissection
Conclusion: The present study suggests that lesion patterns observed from DWI of patients with PFO and SIAD might provide clues to the etiology of infarcts. Single lesions (cortical or subcortical) might be a typical feature of PFO associated strokes, while multiple lesions in one vascular territory might be a specific feature of SIAD associated strokes. Introduction Both patent foramen ovale (PFO) and spontaneous intracranial artery dissection (SIAD) are important stroke risk factors, especially in young and middle-aged adults (1–3). About 25% of patients with ischemic stroke are cryptogenic (4), and PFO is ...
Source: Frontiers in Neurology - April 23, 2019 Category: Neurology Source Type: research

A Genetic Variant of miR-34a Contributes to Susceptibility of Ischemic Stroke Among Chinese Population
This study was supported by National Natural Science Foundation of China (Nos. 81560552, 81260234), Natural Science Foundation of Guangxi Zhuang Autonomous Region (CN) (2017JJA180826), Innovation Project of Guangxi Graduate Education (CN) (201601009) and Key Laboratory Open Project Fund of Guangxi Zhuang Autonomous Region (CN) (kfkt20160064). Conflict of Interest Statement The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. Supplementary Material The Supplementary Material for this article can be fou...
Source: Frontiers in Physiology - April 23, 2019 Category: Physiology Source Type: research

Sex differences and risk factors in recurrent ischemic stroke
ConclusionHypertension and dyslipidemia were significant risk factors of recurrent ischemic stroke in both genders. Smoking and alcohol drinking were significant risk factors associated with ischemic stroke recurrence in males. Therefore, smoking cessation and alcohol abstinence are recommended after the first stroke to prevent recurrent ischemic stroke especially for males. Diabetes was a significant risk factor of ischemic stroke recurrence in females. More extensive studies are needed to understand the causal relationship of each factors with ischemic stroke recurrence according to sex differences and specification of p...
Source: Frontiers in Neurology - January 26, 2023 Category: Neurology Source Type: research