Lipid-Lowering Therapy Use When Indicated and Subsequent Ischemic Stroke Severity.

Background: Elevated low-density lipoprotein cholesterol is a risk factor for atherosclerotic cardiovascular disease, including acute ischemic stroke (AIS), due to large- and small-vessel disease. Cholesterol management guidelines recommend lipid-lowering therapy (LLT) to prevent atherosclerotic cardiovascular disease events. This study assessed use of LLT at the time of AIS according to guideline recommendations and determined the association of prestroke LLT use with stroke severity.

A Case of Moyamoya Vasculopathy Presenting as Simultaneous Ischemic and Hemorrhagic Strokes.

Background: Moyamoya disease (MMD) is a rare pathological state characterized by progressive stenosis of the terminal portion of the internal carotid arteries (ICA). Complications include both ischemic and hemorrhagic strokes, for which there is no curative treatment for MMD. Early diagnosis with surgical intervention is vital for there is no definitive treatment.

Enhancing stroke knowledge among youth: Insights from Stroke Busters.

Introduction: Community stroke education has shown promising results with sustained stroke knowledge and behavioral changes; however less is known about the effects of targeted education towards youth. We developed an interactive educational program for high school students, Stroke Busters, that focuses on stroke prevention, recognizing warning signs, and the importance of seeking prompt care.

Methods: This is a prospective cohort study where students are offered a stroke education program, 'Stroke Busters', through the Yale Pathways to Science Program, a Science, Technology, Engineering and Math (STEM) pipeline program for high school students living near New Haven, Connecticut.

Optimal Timing for Resumption of Anticoagulation After Intracranial Hemorrhage in Patients With Mechanical Heart Valves.

Background: Anticoagulation in patients with intracranial hemorrhage (ICH) and mechanical heart valves is often held for risk of ICH expansion; however, there exists a competing risk of acute ischemic stroke (AIS). Optimal timing to resume anticoagulation remains uncertain.

Methods And Results: We retrospectively studied patients with ICH and mechanical heart valves from 2000 to 2018.

Secondary Prevention in Patients With Stroke Versus Myocardial Infarction: Analysis of 2 National Cohorts.

Background: The implementation of preventive therapies among patients with stroke remains inadequately explored, especially when compared with patients with myocardial infarction (MI), despite sharing similar vascular risk profiles. We tested the hypothesis that participants with a history of stroke have a worse cardiovascular prevention profile in comparison to participants with MI.

Methods And Results: In cross-sectional analyses within the UK Biobank and All of Us Research Program, involving 14 760 (9193 strokes, 5567 MIs) and 7315 (2948 strokes, 4367 MIs) participants, respectively, we evaluated cardiovascular prevention profiles assessing low-density lipoprotein (<100 mg/dL), blood pressure (systolic, <140 mm Hg; and diastolic, <90 mm Hg), statin and antiplatelet use, and a cardiovascular prevention score that required meeting at least 3 of these criteria.

Impaired mobility and MRI markers of vascular brain injury: Atherosclerosis Risk in Communities and UK Biobank studies.

Background: Vascular brain injury (VBI) may be an under-recognised contributor to mobility impairment. We examined associations between MRI VBI biomarkers and impaired mobility.

Methods: We separately analysed Atherosclerosis Risk in Communities (ARIC) and UK Biobank (UKB) study cohorts.

Addressing disparities in the global epidemiology of stroke.

Stroke is the second leading cause of death and the third leading cause of disability worldwide. Though the burden of stroke worldwide seems to have declined in the past three decades, much of this effect reflects decreases in high-income countries (HICs). By contrast, the burden of stroke has grown rapidly in low-income and middle-income countries (LMICs), where epidemiological, socioeconomic and demographic shifts have increased the incidence of stroke and other non-communicable diseases.

Association of Neighborhood-Level Socioeconomic Factors With Delay to Hospital Arrival in Patients With Acute Stroke.

Background And Objectives: Delivery of acute ischemic stroke (AIS) therapies is contingent on the duration from last known well (LKW) to emergency department arrival time (EDAT). One reason for treatment ineligibility is delay in presentation to the hospital. We evaluate patient and neighborhood characteristics associated with time from LKW to EDAT.

Caring for Patients With Diabetes in Stroke Neurology.

Diabetes is a heterogeneous disease that affects 9% of the world's population (11% in the United States). The consequences of diabetes for the brain are severe; it nearly doubles a person's risk of stroke and is a major contributor to risk for cerebral small vessel disease and dementia. These effects on the brain are in addition to peripheral neuropathy, retinopathy, nephropathy, and coronary heart disease.

Technical Dissonance in Home Blood Pressure Monitoring After Stroke: Having the Machine, but Not Using Correctly.

Background: In individuals with hypertension (HTN), lowering blood pressure (BP) after a stroke can lower the risk of stroke recurrence, but many patients do not reach the goal. Home blood pressure monitoring (HBPM) can help patients get to the goal, but rates of use and quality of technique have not been evaluated.

Methods: We conducted a cross-sectional study of patients with stroke.

Central vs site outcome adjudication in the IRIS trial.

Background: Central adjudication of outcome events is the standard in clinical trial research. We examine the benefit of central adjudication in the Insulin Resistance Intervention after Stroke (IRIS) trial and show how the benefit is influenced by outcome definition and features of the adjudicated events.

Methods: IRIS tested pioglitazone for prevention of stroke and myocardial infarction in patients with a recent transient ischemic attack or ischemic stroke.

Protecting the Brain, From the Heart: Safely Mitigating the Consequences of Thrombosis in Intracerebral Hemorrhage Survivors With Atrial Fibrillation.

Optimal antithrombotic management after intracerebral hemorrhage remains one of the central unresolved issues for patients who survive, especially for those patients with atrial fibrillation. Given the observational nature of the studies regarding anticoagulation resumption after intracerebral hemorrhage, there is uncertainty regarding resumption of oral anticoagulation therapy and its timing. There is limited high-quality evidence to guide clinical practice, leading to significant practice variation and uncertainty for patients and providers.

The risk for developing a secondary cancer after breast radiation therapy: Comparison of photon and proton techniques.

Background And Purpose: To compare secondary malignancy risks of modern proton and photon therapy techniques for locally advanced breast cancer.

Methods And Materials: We utilized dosimetric data from 34 [10 photon-VMAT, 10 photon-3DCRT, 14 pencil beam scanning proton (PBS)] breast cancer patients who received comprehensive nodal irradiation. Employing a model based on organ equivalent dose to account for both inhomogeneous organ dose distributions and non-linear functional dose relationships, we estimated excess absolute risk, excess relative risk, and lifetime attributable risk (LAR) for secondary malignancies.

Intracerebral Hemorrhage Outcomes in the Very Elderly.

Background: There is a paucity of outcomes data in patients over 80 years presenting with intracerebral hemorrhage (ICH). The primary aim of our study is to describe outcomes in this patient population.

Method: Retrospective study of patients admitted with primary ICH from January 2012 to July 2018.

The Impact of an Introductory Radiation Oncology Curriculum (IROC) for Radiation Oncology Trainees Across the United States and Canada.

Purpose: Despite interest from both radiation oncology residents and program directors, many residency training programs lack a formalized introductory curriculum to orient incoming radiation oncology residents to the specialty.

Methods And Materials: Using the 6-step model for medical education curriculum development, a structured introductory radiation oncology curriculum (IROC) was created for incoming post-graduate year 2 (PGY-2) radiation oncology residents to address foundational concepts including patient simulation, contouring, and plan evaluation. The curriculum was distributed to 55 training programs across the United States and Canada at the start of the 2018 to 2019 and 2019 to 2020 academic years.

The Spectrum of Nontraumatic Convexity Subarachnoid Hemorrhage.

Background: Nontraumatic convexity subarachnoid hemorrhage (cSAH) is a nonaneurysmal variant that is associated with diverse etiologies.

Methods: With IRB approval, we retrospectively reviewed consecutive nontraumatic cSAH from July 1, 2006 to July 1, 2016. Data were abstracted on demographics, medical history, neuroimaging, etiology, and clinical presentation.

In Vitro Studies on Degradation of Gamma-L-Glutamyl-L-Cysteine and Gamma-L-Glutamyl-D-Cysteine in Blood: Implications for Treatment of Stroke.

Treatment for ischemic stroke involves a thrombolytic agent to re-establish blood flow in the brain. However, delayed reperfusion may cause injury to brain capillaries. Previous studies indicate that the antioxidant gamma-L-glutamyl-L-cysteine (γ-Glu-Cys) contributes to reducing reperfusion injury to the cerebral vasculature in rats, when administered intravascularly.

Anterior-posterior stability of the knee by an MR image subtraction method.

The purpose of our study was to test the hypothesis that when a shear force was applied posteriorly to the loaded knee in vivo, there would be no relative motion between the tibia and the medial femoral condyle. Siemens 7 Tesla high-resolution MRI machine was used to scan eight healthy male volunteers with the knee at 15° of flexion. Two scans were obtained: the first with a compressive force of 660 N along the tibial long axis and a second with the compressive force and a posterior shear force of 36 N applied to the tibia.

Analysis of reverse total shoulder joint forces and glenoid fixation.

Reverse total shoulder arthroplasty (rTSA) implants are intended to restore stability and function to shoulders with rotator cuff deficiency. The implant consists of a glenosphere projecting from a glenoid baseplate and articulating in a socket at the proximal end of a humeral component. Despite the demonstrated clinical efficacy, little information is available regarding the joint forces about this construct and the stability of the glenoid component against these forces.

Differential strain of the axially loaded scapholunate interosseus ligament.

Purpose: To directly measure strain changes in the scapholunate ligament via magnetic resonance imaging (MRI) when axially loading the wrist in the neutral and extended positions.

Methods: Six asymptomatic male volunteers without known history of previous wrist injury were enrolled in this MRI-based study. Each subject underwent 3 MRI scans in a 3T scanner: in resting neutral position, in neutral with axial load applied, and in extension with axial load applied.

Development and evaluation of an instrumented linkage system for total knee surgery.

The principles and application of total knee surgery using optical tracking have been well demonstrated, but electromagnetic tracking may offer further advantages. We asked whether an instrumented linkage that attaches directly to the bone can maintain the accuracy of the optical and electromagnetic systems but be quicker, more convenient, and less expensive to use. Initial testing using a table-mounted digitizer to navigate a drill guide for placing pins to mount a cutting guide demonstrated the feasibility in terms of access and availability.

Follicular phase dynamics with combined aromatase inhibitor and follicle stimulating hormone treatment.

Objective: The objective of this study was to evaluate follicular phase parameters during ovarian stimulation with FSH alone or with the aromatase inhibitor letrozole.

Methods: Two groups of women undergoing intrauterine insemination (IUI): group I (389 patients; mean age 35 +/- 4.3 yr) underwent 630 IUI cycles stimulated with letrozole and FSH; and group II (134 patients; mean age 36.