
Investigation of Clot in Ischemic Stroke and Hematoma Evacuation
Ischemic StrokeIntracranial HematomaThe aim of the study is to collect and analyze specimen from ischemic stroke patients undergoing thrombectomy procedures and from patients undergoing minimally invasive surgery for intracranial hematoma evacuation.

Posterior Circulation ASTRAL Prognostic Score
Stroke IschemicStroke Acute1 moreThe goal of this study is to develop a prognostic score for ischemic posterior circulation strokes, based on our previous work on with the ASTRAL scores (Acute STroke Registry and Analysis of Lausanne) on overall stroke prognosis, intracranial occlusion, recanalization and stroke recurrences. The main question it aims to answer is the modified Rankin score in 3 months after the event. Participants will be patients with acute ischemic stroke of the posterior circulation with mRS priot to event <3. All the data will be collected retrospectively from patients included in the ASTRAL registry between January 2003 and December 2021. The ASTRAL registry will be used as the derivation cohort of the score. Demographics, acute glucose, NIHSS score and acute imaging of each participant will be used from the derivation cohort in order to create an integer-based prognostic score. After internal validation, we plan to validate the score in external stroke registries to show its validity.

Predictors of AIS Unfavorable Outcomes
Ischemic StrokeAlteplase Adverse ReactionThe investigators evaluated whether the characteristics of ischemic stroke patients, door-to-needle time, and stroke risk factors were predictive variables for unfavourable outcomes.

Electric Field Navigated 1hz Rtms for Post-stroke Motor Recovery Trial
Ischemic StrokeA prospective, multi-center, randomized, sham-controlled, blinded study combining active Nexstim NBS-guided 1Hz rTMS or sham-rTMS targeting the healthy hemisphere with standardized task oriented rehabilitation will be conducted in patients with post-stroke motor impairment of the upper limb. The therapy will be provided for 6 weeks and primary outcome assessed 6 months later.

A Comparison of Hemorrhagic and Ischemic Strokes Among Blacks and Whites
Ischemic StrokeTIA1 moreOur primary goal is to study temporal trends in the incidence rate, causes, treatment, and outcome of stroke among a large biracial metropolitan population of 1,349,351, of whom 215,611 (15%) are black (2000 Census). Such data are critical for the planning, intervention, and evaluation of public health efforts to decrease the mortality and morbidity due to stroke in the United States. We have completed this goal for 1993-94, 1999, 2005, 2010 and 2015. We are in the process of collecting this data for 2020. In the 2020 study period we will also be ascertaining 3 year recurrence rates for all incident stroke events.

Superselective Administration of VErapamil During Recanalization in Acute Ischemic Stroke
Ischemic StrokeThe purpose of this study is to determine whether super-selective intra-arterial administration of verapamil immediately following successful intra-arterial thrombolysis is safe as a potential neuroprotective agent. Standard procedures are cerebral angiography and intra-arterial thrombolysis (intra-arterial administration of tPA and/or mechanical thrombectomy). Experimental procedure is superselective injection of verapamil intra-arterially.

Intravenous Thrombolysis Plus Hypothermia for Acute Treatment of Ischemic Stroke
StrokeThe purpose of this trial is to evaluate if it is safe to use tissue plasminogen activator (tPA) within 6 hours of stroke onset when combined with hypothermia.

Multicenter Prospective Cohort of Informal Caregivers in Burgundy and Franche-Comté
Breast CancerColorectal Cancer7 moreMedical progress and modification of lifestyles have prolonged life expectancy, despite the development of chronic diseases. The support and care are often provided by a network of informal caregivers composed of family, friends, and neighbors. They became essential to help maintening the elderly persons to live at home. It has been demonstrated that the importance and the diversity of informal tasks may jeopardize their own physical, mental and social well-being. The aim of the Informal Carers of Elderly Cohort is to define, through a longitudinal study of their life course, the profiles of caregivers of patients with a diagnosis of one of the following diseases: cancer (breast, prostate, colon-rectum), neuro-degenerative diseases (Parkinson's disease, Alzheimer's and similar diseases), neuro-vascular diseases (Cerebrovascular Accident (CVA)), Age-related Macular Degeneration(AMD) and heart disease (heart failure), aged ≥ 60 years old and living in Burgundy or Franche-Comte. By following the different phases of the caregiving relationship from the announcement of the diagnosis, it will be possible to assess the quality of life of caregivers and evaluate the implementation of a pragmatic social action to help informal caregivers through a randomized intervention trial nested in the cohort. Thanks to an analytical and longitudinal definition of the profiles of informal caregivers, this study could gather precise information on their life courses and their health trajectory by identifying the consequences associated with the concept of their role of aid in care. In addition, the randomized intervention trial will explore the efficacy, in terms of quality of life, and efficiency of a social action to support the caregivers. These data will allow to identify strategies that could be used to improve the existing sources of aid and to propose new approaches to help caregivers. This study will provide the opportunity to identify the most relevant means of support and to give an impulse for new healthcare policies.

A Reduction in Time With Electronic Monitoring In Stroke
Acute Ischemic StrokeStrokeThe purpose of the ARTEMIS trial is to investigate if real-time feedback to caregivers reduces the time between patient's first medical contact and start of intravenous thrombolysis and/or intraarterial thrombectomy in patients with acute ischemic stroke.

Deep Learning Enabled Endovascular Stroke Therapy Screening in Community Hospitals
Acute Ischemic Stroke (AIS)After onset of Acute Ischemic Stroke (AIS), every minute of delay to treatment reduces the likelihood of a good clinical outcome. A key delay occurs in the time between completion of computed tomography (CT) angiography of the head and neck and interpretation in the setting of AIS care. The purpose of this study is to assess the effect of incorporating Viz.AI software, which via via a machine-learning algorithm performs artificial intelligence-based automated detection of large vessel occlusions (LVO) on CT angiography (CTA) images and alerts the AIS care team (diagnosis and treatment decisions will be based on the clinical evaluation and review of the images by the treating physician, per routine standard of care). The hypothesis is that integration of the software into the AIS care pathway will reduce delays in treatment. A cluster-randomized stepped-wedge trial will be performed across 4 hospitals in the greater Houston area.