Publications by authors named "Karen Borschmann"

Article Synopsis
  • The study investigates how sitting and standing positions affect cerebral blood flow (MCAv) in stroke patients within the first 48 hours and also 3-7 days post-stroke.
  • Using transcranial Doppler, researchers measured MCAv changes across different positions and compared results between stroke patients with and without occlusive disease, as well as healthy controls.
  • Findings revealed that affected hemisphere MCAv significantly decreased when patients with occlusive disease adjusted from a lying to an upright position, indicating potential harm and highlighting the need for careful monitoring of upright activity post-stroke.
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Purpose: Valued living (acting in accordance with personal values) is associated with better outcomes after acquired brain injury (ABI), but its measurement using the Valued Living Questionnaire (VLQ) may not be valid due to comprehension errors relating to structure and content. We aimed to modify the VLQ to improve its accessibility and evaluate construct validity and reliability in an ABI cohort.

Materials And Methods: Adaptations made in the VLQ - Comprehension Support version (VLQ-CS) used established communication support methods and addressed common comprehension errors.

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Background: Mobility is a key priority for stroke survivors. Worldwide consensus of standardized outcome instruments for measuring mobility recovery after stroke is an essential milestone to optimize the quality of stroke rehabilitation and recovery studies and to enable data synthesis across trials.

Methods: Using a standardized methodology, which involved convening of 13 worldwide experts in the field of mobility rehabilitation, consensus was established through an defined survey-based approach followed by group discussions.

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Background: Mobility is a key priority for stroke survivors. Worldwide consensus of standardized outcome instruments for measuring mobility recovery after stroke is an essential milestone to optimize the quality of stroke rehabilitation and recovery studies and to enable data synthesis across trials.

Methods: Using a standardized methodology, which involved convening of 13 worldwide experts in the field of mobility rehabilitation, consensus was established through an defined survey-based approach followed by group discussions.

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Background: Fractures are a serious consequence following stroke, but it is unclear how these events influence health-related quality of life (HRQoL). We aimed to compare annualized rates of fractures before and after stroke or transient ischemic attack (TIA), identify associated factors, and examine the relationship with HRQoL after stroke/TIA.

Methods: Retrospective cohort study using data from the Australian Stroke Clinical Registry (2009-2013) linked with hospital administrative and mortality data.

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Background: Physical activity is important for secondary stroke prevention. Currently, there is inconsistency of outcomes and tools used to measure physical activity following stroke.

Aim: To establish internationally agreed recommendations to enable consistent measurement of post-stroke physical activity.

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Background: Returning to work is an important outcome for stroke survivors.

Objectives: This sub-study of a randomised controlled trial aimed to provide characteristics of working-age stroke participants and identify factors associated with return to work at 12 months.

Methods: We used paid employment data collected as part of A Very Early Rehabilitation Trial (AVERT, n=2104), an international randomised controlled trial studying the effects of very early mobilisation after stroke at 56 acute stroke units across Australia, New Zealand, the United Kingdom, Malaysia and Singapore.

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Purpose: The context of implementation plays an important role in the delivery of optimal treatments in stroke recovery and rehabilitation. Considering that stroke systems of care vary widely across the globe, the goal of the present paper is to compare healthcare providers' priority of key areas in translating stroke research to clinical practice among High Income Countries, Upper Middle- and Lower Middle-Income Countries (HICs, UMICs, LMICs). We also aimed to compare perceptions regarding the key areas' feasibility of implementation, and formulate recommendations specific to each socioeconomic region.

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Aims: Pre-diabetes is a common condition that affects about 16.4% of Australian adults. Hyperglycaemia is a strong risk factor for the development of stroke.

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Objective: To determine how young stroke survivors want their unmet needs to be addressed, we undertook an international online survey of people living with stroke.

Methods: Participants self-selected to complete an online survey that included a questionnaire on demographics and stroke-related characteristics, the Young Stroke Needs Screening Tool, and a questionnaire on how they wanted their needs to be met.

Results: One hundred seventy-one responses were received (68% female respondents, mean age 45 years, interquartile range 36-51 years).

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The impact of out-of-bed upright activity on outcomes in ischemic stroke patients with severe extra- and intracranial stenosis or occlusion is unknown. Using ultrasound findings from a cohort recruited to A Very Early Rehabilitation Trial (AVERT) which compared higher dose very early mobilisation (VEM) to usual care (UC), we aimed to explore the association between occlusive disease and 3-month outcomes and occlusive disease-by-mobilisation treatment interactions. Participants with ischemic stroke, with carotid and transcranial Doppler ultrasounds performed ≤1 week after admission, were included in this single centre substudy in Melbourne, Australia.

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Objective: This tertiary analysis from A Very Early Rehabilitation Trial (AVERT) examined fatal and nonfatal serious adverse events (SAEs) at 14 days.

Method: AVERT was a prospective, parallel group, assessor blinded, randomized international clinical trial comparing mobility training commenced <24 hours poststroke, termed very early mobilization (VEM), to usual care (UC). Primary outcome was assessed at 3 months.

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Article Synopsis
  • The study investigates how different head positions after an ischaemic stroke affect cerebral blood flow (CBF), using various imaging methods across 21 studies involving 529 patients.
  • Most studies suggest that lying flat increases CBF in the affected hemisphere, while more upright positions generally decrease it, although results varied widely and some studies had high bias risk.
  • Data indicate a significant increase in CBF velocity when changing head position from 30° to 0°, highlighting the need for more research on the effects of sitting or standing shortly after a stroke, as this is common in clinical practice.
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Objectives: Investigate upper limb (UL) capacity and performance from <14-days to 24-months post stroke.

Design: Longitudinal study of participants with acute stroke, assessed ≤14-days, 6-weeks, 3-, 6-, 12-, 18-, and 24-months post stroke.

Setting: Two acute stroke units.

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The Stroke Recovery and Rehabilitation Roundtable (SRRR) meetings bring together an international group of preclinical and clinical researchers along with statisticians, methodologists, funders and consumers, working to accelerate the development of effective treatments for stroke recovery and to support best-evidence uptake in rehabilitation practice. The first meeting (2016) focused on four recommendation areas: translation of preclinical evidence into human discovery trials; recovery biomarkers to provide knowledge of therapeutic targets and prognosis in human stroke; intervention development, monitoring, and reporting standards; and standardized measurement in motor recovery trials. The impact of SRRR is growing, with uptake of recommendations emerging, and funders exploring ways to incorporate research targets and recommendations.

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Background: The ineffectiveness of most complex stroke recovery trials may be explained by inadequate intervention design. The primary aim of this review was to explore the rationales given for interventions and dose in stroke rehabilitation randomised controlled trials (RCTs).

Methods: We searched the Cochrane Stroke Group library for RCTs that met the following criteria: (1) training based intervention; (2) >50% participants who were stroke survivors; (3) full peer-reviewed text; (4) English language.

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Aims/introduction: Diabetes mellitus is an established risk factor for stroke and maybe associated with poorer outcomes after stroke. The aims of the present literature review were to determine: (i) the prevalence of diabetes in acute stroke patients through a meta-analysis; (ii) the association between diabetes and outcomes after ischemic and hemorrhagic stroke; and (iii) to review the value of glycated hemoglobin and admission glucose-based tests in predicting stroke outcomes.

Materials And Methods: Ovid MEDLINE and EMBASE searches were carried out to find studies relating to diabetes and inpatient stroke populations published between January 2004 and April 2017.

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Background: Stroke is the third leading cause of disability worldwide. Physical activity is important for secondary stroke prevention and for promoting functional recovery. However, people with stroke are more inactive than healthy age-matched controls.

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Aim: To explore the use of a rehabilitation-focused behavioral mapping method to identify changes in patient physical activity, location, and social interaction following the relocation of a rehabilitation ward.

Background: Rehabilitation wards are unique healthcare environments where patient activity is encouraged to improve recovery. Little is known about the impact of building design on patient behavior within a rehabilitation setting.

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Purpose: Bone fragility contributes to increased fracture risk, but little is known about the emergence of post-stroke bone loss. We investigated skeletal changes and relationships with physical activity, stroke severity, motor control and lean mass within 6 months of stroke.

Methods: This is a prospective observational study.

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The first Stroke Recovery and Rehabilitation Roundtable established a game changing set of new standards for stroke recovery research. Common language and definitions were required to develop an agreed framework spanning the four working groups: translation of basic science, biomarkers of stroke recovery, measurement in clinical trials and intervention development and reporting. This paper outlines the working definitions established by our group and an agreed vision for accelerating progress in stroke recovery research.

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Finding, testing and demonstrating efficacy of new treatments for stroke recovery is a multifaceted challenge. We believe that to advance the field, neurorehabilitation trials need a conceptually rigorous starting framework. An essential first step is to agree on definitions of sensorimotor recovery and on measures consistent with these definitions.

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Stroke recovery is the next frontier in stroke medicine. While growth in rehabilitation and recovery research is exponential, a number of barriers hamper our ability to rapidly progress the field. Standardized terminology is absent in both animal and human research, methods are poorly described, recovery biomarkers are not well defined, and we lack consistent timeframes or measures to examine outcomes.

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