Publications by authors named "Bushnell C"

Objectives: To summarize current reports in the literature on disparities in rehabilitation after stroke; identify gaps in our understanding of rehabilitation disparities; and make recommendations for future research.

Data Sources: A health sciences librarian developed a search string based on an a priori protocol and searched Medline (Ovid) Embase (Elsevier), and the Cumulative Index to Nursing and Allied Health Literature (CINAHL and EBSCO).

Study Selection: A 2-step screening process of titles and abstracts followed by full-text review was conducted.

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Article Synopsis
  • The "2024 Guideline for the Primary Prevention of Stroke" updates the previous 2014 guidelines, providing new strategies for preventing strokes in individuals without a prior history.
  • A thorough review of relevant literature from various databases was conducted to inform these updated recommendations, ensuring they are based on the latest research.
  • The guidelines emphasize the preventability of strokes and include new sex-specific recommendations, aligning with the American Heart Association's Life's Essential 8, while also updating previous recommendations based on recent research findings.
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Article Synopsis
  • The study focuses on understanding how social determinants—nonmedical factors impacting health—affect the use of rehabilitation services, particularly after a stroke, which has been underexplored.
  • Researchers reviewed various models to create a framework for identifying and selecting area-level social determinant measures to better analyze their relationship with rehabilitation service utilization.
  • The communication also highlights the challenges faced during the research process and discusses potential future directions for studying the intersection of social determinants and rehabilitation.
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Objectives: To examine the association of prestroke continuity of care (COC) with postdischarge health care utilization and expenditures.

Study Population: The study population included 2233 patients with a diagnosis of stroke or a transient ischemic attack hospitalized in one of 41 hospitals in North Carolina between March 2016 and July 2019 and discharged directly home from acute care.

Methods: COC was assessed from linked Centers for Medicare and Medicaid Services Medicare claims using the Modified, Modified Continuity Index.

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Objectives: We sought to examine the frequency of depression after small vessel-type stroke (SVS) and associated risk factors.

Materials And Methods: We conducted a retrospective analysis of a prospective cohort of patients enrolled in the American Stroke Association-Bugher SVS Study, which included 200 participants within 2-years of SVS and 79 controls without a history of stroke from 2007 to 2012 at four sites. The primary outcome was PHQ-8, with scores ≥10 consistent with post-stroke depression (PSD).

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Cerebral venous thrombosis accounts for 0.5% to 3% of all strokes. The most vulnerable populations include young individuals, women of reproductive age, and patients with a prothrombotic state.

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Background: Few studies on care transitions following acute stroke have evaluated whether referral to community-based rehabilitation occurred as part of discharge planning. Our objectives were to describe the extent to which patients discharged home were referred to community-based rehabilitation and identify the patient, hospital, and community-level predictors of referral.

Methods: We examined data from 40 North Carolina hospitals that participated in the COMPASS (Comprehensive Post-Acute Stroke Services) cluster-randomized trial.

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Stroke is a leading cause of death and disability in the United States and worldwide, necessitating comprehensive efforts to optimize stroke risk factor management. Health disparities in stroke incidence, prevalence, and risk factor management persist among various race/ethnic, geographic, and socioeconomic populations and negatively impact stroke outcomes. This review highlights existing literature and guidelines for stroke risk factor management, emphasizing health disparities among certain populations.

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Background: Primary headache disorder is a known risk factor for stroke in women and usually improves during the first trimester of pregnancy. However, despite this, some women develop headaches during pregnancy (G-HA), and the effect of this headache on subsequent stroke is unknown. In this study, we evaluated the association between G-HA and stroke after delivery in women.

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Objectives: The COMPASS (COMprehensive Post-Acute Stroke Services) pragmatic trial cluster-randomized 40 hospitals in North Carolina to the COMPASS transitional care (TC) postacute care intervention or usual care. We estimated the difference in healthcare expenditures postdischarge for patients enrolled in the COMPASS-TC model of care compared with usual care.

Methods: We linked data for patients with stroke or transient ischemic attack enrolled in the COMPASS trial with administrative claims from Medicare fee-for-service (n = 2262), Medicaid (n = 341), and a large private insurer (n = 234).

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Introduction: Suboptimal sleep duration and poor sleep quality have been proposed to increase stroke risk. However, their significance in young ischemic stroke is unclear. We aimed to investigate the importance of sleep duration and quality on young ischemic stroke patients.

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Background: Published guidelines recommend high-intensity statins following an ischemic stroke or transient ischemic attack (TIA). The authors examined the potential for disparate patterns of statin prescribing in a cluster randomized trial of transitional care following acute stroke or TIA.

Methods: Medications taken before hospitalization and statins prescribed at discharge among stroke and TIA patients at 27 participating hospitals were examined.

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Article Synopsis
  • Atrial fibrillation (AF) is a major contributor to ischemic stroke, which greatly impacts health and mortality rates, especially as the aging population grows.
  • There are various stroke prevention methods available, yet significant questions persist regarding the best strategies for both broader populations and individual patients in managing AF.
  • The National Heart, Lung, and Blood Institute workshop highlighted research areas for improvement, including risk assessment tools, challenges related to oral anticoagulants, and the effectiveness of different left atrial appendage closure techniques in stroke prevention for AF patients.
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Stroke is a particularly important issue for women. Women account for over half of all persons who experienced a stroke. The lifetime risk of stroke is higher in women than in men.

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Background And Objectives: We examined transitional care management within 90 days and 1 year following discharge home among acute stroke and transient ischemic attack patients from the Comprehensive Post-Acute Stroke Services (COMPASS) Study, a cluster-randomized pragmatic trial of early supported discharge conducted in 41 hospitals (40 hospital units) in North Carolina, United States.

Methods: Data for 2262 of the total 6024 (37.6%; 1069 intervention and 1193 usual care) COMPASS patients were linked with the Centers for Medicare and Medicaid Services fee-for-service Medicare claims.

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Background: This study identified early immune gene responses in peripheral blood associated with 90-day ischemic stroke (IS) outcomes.

Methods: Peripheral blood samples from the CLEAR trial IS patients at ≤ 3 h, 5 h, and 24 h after stroke were compared to vascular risk factor matched controls. Whole-transcriptome analyses identified genes and networks associated with 90-day IS outcome assessed using the modified Rankin Scale (mRS) and the NIH Stroke Scale (NIHSS).

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There has been a plethora of studies focused on female-specific risk factors and sex differences in stroke published in the past year. This article summarizes several of those novel studies which provide new knowledge about the field of stroke in women. The Nurses' Health Study II provides new data on the association between laparoscopically proven endometriosis and future stroke, accounting for the mediation effects of hysterectomy and oophorectomy.

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Telehealth has seen rapid expansion into chronic care management in the past 3 years because of the COVID-19 pandemic. Telehealth for acute care management has expanded access to equitable stroke care to many patients over the past two decades, but there is limited evidence for its benefit for addressing disparities in the chronic care of patients living with stroke. In this review, we discuss advantages and disadvantages of telehealth use for the outpatient management of stroke survivors.

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Hemianopia (unilateral blindness), a common consequence of stroke and trauma to visual cortex, is a debilitating disorder for which there are few treatments. Research in an animal model has suggested that visual-auditory stimulation therapy, which exploits the multisensory architecture of the brain, may be effective in restoring visual sensitivity in hemianopia. It was tested in two male human patients who were hemianopic for at least 8 months following a stroke.

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Background: Limited studies have evaluated the use of ultrasound for detection of intracerebral hemorrhage (ICH) using diagnostic ultrasound Transcranial Doppler machines in adults. The feasibility of ICH detection using Point of care Ultrasound (POCUS) machines has not been explored. We evaluated the feasibility of using cranial POCUS B mode imaging performed using intensive care unit (ICU) POCUS device for ICH detection with a secondary goal of mapping optimal imaging technique and brain topography likely to affect sensitivity and specificity of ICH detection with POCUS.

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