Publications by authors named "Marialaura Simonetto"

Providing specialized care to critically ill neurology patients has improved outcomes for patients with neurological emergencies; however, there are still some gaps in neurocritical care (NCC) that offer opportunities for improvement. Among these gaps, improving education of the multidisciplinary NCC team, targeting individualized treatments for neurologically critically ill patients, and reducing disparities for undeserved patients as well as disadvantaged areas are priorities to advance the field. This review focuses on the current challenges neurointensivists face, including difficulties in neuroprognostication, ethical challenges in end-of-life care, and neuropalliative care.

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Aging affects all organs. Arteries, in particular, are among the most affected. Vascular aging (VA) is defined as age-associated changes in function and structure of vessels.

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Article Synopsis
  • The study investigates the link between red blood cell (RBC) concentrations, measured as hematocrit, and lacunar infarcts—small brain lesions related to ischemic stroke—using two groups: stroke-free adults and acute stroke patients.
  • Results showed that in stroke-free older adults, there is a U-shaped relationship, meaning both low and high hematocrit levels are associated with chronic covert lacunar infarcts.
  • In acute stroke patients, the study found a direct correlation where higher hematocrit levels were linked to an increased occurrence of acute lacunar strokes, suggesting that RBC concentrations might play a significant role in both chronic and acute brain injury.
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Background: Intracerebral hemorrhage (ICH) is associated with an increased risk of ischemic stroke. Whether there are racial and ethnic disparities in the risk of ischemic stroke after ICH is poorly understood. We therefore aimed to test the hypothesis that non-Hispanic Black and Hispanic ICH patients have a higher risk of ischemic stroke compared with non-Hispanic White ICH patients.

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Objectives: The internal carotid artery (ICA) angle of origin may contribute to atherogenesis by altered hemodynamics. We aim to determine the contribution of vascular risk factors and arterial wall changes to ICA angle variations.

Methods: We analyzed 1,065 stroke-free participants from the population-based Northern Manhattan Study who underwent B-mode ultrasound (mean age 68.

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Purpose Of Review: To describe a comprehensive review of the epidemiology, pathophysiology, and treatment of stroke in the era of COVID-19.

Recent Findings: COVID-19 is associated with myriad neurological disorders, including cerebrovascular disease. While ischemic stroke is the most common, COVID-19 is associated with an increased risk of intracranial hemorrhage, arterial dissection, posterior reversible encephalopathy syndrome, and cerebral venous sinus thrombosis.

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Objectives: Cancer can present as stroke. Several cancer types have established screening guidelines. We investigated adherence to guideline-recommended cancer screening in stroke survivors versus the general population.

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Background: Research suggests optimizing sleep, exercise and work-life balance may improve resident physician burnout. Wearable biosensors may allow residents to detect and correct poor sleep and exercise habits before burnout develops. Our objectives were to evaluate the feasibility of a wearable biosensor to characterize exercise/sleep in neurology residents and examine its relationship to self-reported, validated survey measures.

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Background: Lowering blood pressure intensively in acute intracerebral hemorrhage (ICH) is associated with adverse renal events; Blacks and Hispanics have a higher incidence of ICH and kidney disease than Whites. In addition, CT angiography (CTA), which may also be associated with acute kidney injury (AKI), is often done in acute ICH. Our objective was to investigate the relationship between aggressive BP management, CTA, race-ethnicity and the risk of developing AKI in patients presenting with ICH.

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Objectives: Carotid plaque ulcers confer an increased risk for stroke/ transient ischemic attacks in both symptomatic and asymptomatic carotid artery stenosis. Little is known about the healing rates of ulcers or the development of new ulcers. Carotid Duplex studies are noninvasive and easily repeatable tests to monitor progression of carotid stenosis and plaque morphology.

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Background Physical exercise and cognitive training have been recommended to improve cognitive outcomes poststroke, but a multifaceted strategy including aerobic, resistance, and cognitive training to facilitate poststroke recovery has not been investigated. We aimed to assess the feasibility, adherence, and safety of a combined aerobic, resistance, and cognitive training intervention (CARET+CTI) after stroke. Methods and Results We prospectively randomized patients presenting with recent stroke to a comparison of a supervised 12-week CARET+CTI program and a control group receiving sham CARET+CTI.

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Background and Purpose- Few studies have examined the separate contributions of systolic blood pressure and diastolic blood pressures (DBP) on subclinical cerebrovascular disease, especially using the 2017 American College of Cardiology/American Heart Association Blood Pressure Guidelines. Furthermore, associations with region-specific white matter hyperintensity volume (WMHV) are underexplored. Methods- Using data from the NOMAS (Northern Manhattan Study), a prospective cohort study of stroke risk and cognitive aging, we examined associations between systolic blood pressure and DBP, defined by the 2017 American College of Cardiology/American Heart Association guidelines, with regional WMHV.

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Atherosclerosis is an inflammatory chronic disease affecting arterial vessels and leading to vascular diseases, such as stroke and myocardial infarction. The relationship between atherosclerosis and risk of neurodegeneration has been established, in particular with vascular cognitive impairment and dementia (VCID). Systemic atherosclerosis increases the risk of VCID by inducing cerebral infarction, or through systemic or local inflammatory factors that underlie both atherosclerosis and cognition.

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Objective: To examine associations between measures of obesity in middle to early-old age with later-life MRI markers of brain aging.

Methods: We analyzed data from the Northern Manhattan MRI Sub-Study (n = 1,289). Our exposures of interest were body mass index (BMI), waist circumference (WC), waist-to-hip ratio, and plasma adiponectin levels.

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Background: Adiposity may increase risk for dementia and Alzheimer's disease (AD), but mechanisms are unclear.

Objective: To examine associations between measures of adiposity with AD-signature region cortical thickness and hippocampal volume.

Methods: We used data from the Northern Manhattan Study, a clinically stroke-free cohort of mostly Hispanic participants.

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Purpose: The purpose of this study was to design a mobile-friendly, Internet-based website, modeled on previously described websites for Alzheimer caregivers, to equip stroke caregivers and potentially reduce caregiver burden.

Design: A mixed-methods study was performed to design and test the usability of the Stroke Caregiver Support System (SCSS).

Methods: An iterative, user-centered design approach was employed in three phases: (I) Focus Groups, (II) Structured Interviews, and (III) Usability Testing.

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Background: The role of vertebral artery hypoplasia (VAH) in stroke pathophysiology is still debated. In this study, we correlated extra- and intra-cranial vertebral artery ultrasound findings with brain CT/MRI and clinical outcome.

Materials And Methods: We recruited all consecutive first-ever stroke patients with a documented acute ischemic brain lesion and a complete extra-intracranial ultrasound evaluation.

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Background: Atherosclerotic plaques located at the vertebral artery ostium (VAo) are a mechanism for posterior circulation stroke, but little is known about VAo plaque topography and formation. In this study, we describe the topography of atherosclerotic plaques involving the origin of the vertebral artery (VA).

Methods: Cross-sectional analyses of extracranial duplex studies were performed, and VAo plaques were classified based on their topography in 3 groups: (1) exclusively at the VA ostium; (2) predominantly subclavian, with extension into the vertebral ostium; and (3) predominantly ostial, with extension into the subclavian artery).

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Poor micturition control may cause profound distress, because proper voiding is mandatory for an active social life. Micturition results from the subtle interplay of central and peripheral components. It involves the coordination of autonomic and neuromuscular activity at the brainstem level, under the executive control of the prefrontal cortex.

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