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Stroke, Lacunar clinical trials

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NCT ID: NCT06416371 Not yet recruiting - Vascular Dementia Clinical Trials

Retinal Vessel Leakage in Cerebral Small Vessel Disease

Start date: September 2024
Phase:
Study type: Observational

The goal of this observational study is to learn about leakage from retinal vessels in cerebral small vessel disease. The main questions it aims to answer are: - Does retinal vessel leakage occur in cerebral small vessel disease? - If it does, is the severity of retinal vessel leakage similar to the severity of cerebral small vessel disease generally? Participants will be tested using fluorescein angiography. This involves an intravenous injection of fluorescent dye, and is a very sensitive way to find leakage from retinal blood vessels. Participants will have already had brain scans and other examinations and tests to measure the severity of their cerebral small vessel disease. Our new retinal images will complement the information from these previous tests.

NCT ID: NCT06354881 Recruiting - Lacunar Stroke Clinical Trials

The Relationship Between Controlling Risk Factors and Cerebral Haemodynamics in Lacunar Stroke

LACUNAR_CA
Start date: May 2, 2024
Phase:
Study type: Observational

The goal of this observational study is to look at differences in brain blood flow before and after management of risk factors such as high blood pressure and diabetes in patients with lacunar stroke. Participants will be asked to undergo a simple brain blood flow assessment at their initial appointment, whereby they will be asked to sit and stand twice. The patients will then be asked for a follow-up assessment 4 weeks after, identical to the first. This will allow us to look at any changes in brain blood flow from before management of risk factors and 4 weeks after management of risk factors.

NCT ID: NCT05041114 Withdrawn - Clinical trials for Amyotrophic Lateral Sclerosis

SWITCH II Early Feasibility Study: Implantable BCI to Control a Digital Device for People With Paralysis

Start date: April 21, 2022
Phase: N/A
Study type: Interventional

The Synchron Motor Neuroprosthesis (MNP) is intended to be used in subjects with severe motor impairment, unresponsive to medical or rehabilitative therapy and a persistent functioning motor cortex. The purpose of this research is to evaluate safety and feasibility. The MNP is a type of implantable brain computer interface which bypasses dysfunctional motor neurons. The device is designed to restore the transmission of neural signal from the cerebral cortex utilized for neuromuscular control of digital devices, resulting in a successful execution of non-mechanical digital commands.

NCT ID: NCT05035823 Active, not recruiting - Clinical trials for Spinal Cord Injuries

COMMAND Early Feasibility Study: Implantable BCI to Control a Digital Device for People With Paralysis

Start date: April 27, 2022
Phase: N/A
Study type: Interventional

The Synchron motor neuroprosthesis (MNP) is intended to be used in subjects with severe motor impairment, unresponsive to medical or rehabilitative therapy and a persistent functioning motor cortex. The purpose of this research is to evaluate safety and feasibility. The MNP is a type of implantable brain computer interface which bypasses dysfunctional motor neurons. The device is designed to restore the transmission of neural signal from the cerebral cortex utilized for neuromuscular control of digital devices, resulting in a successful execution of non-mechanical digital commands.

NCT ID: NCT04839224 Recruiting - Clinical trials for Acute Ischemic Stroke

Comparing Between CO2 and Phenylephrine Treatment in Patients With Progressive Lacunar Infarction (CARBOGEN Study)

Start date: April 5, 2021
Phase: Phase 3
Study type: Interventional

Lacunar infarction is an ischemic stroke occurred by small perforating artery occlusion . Twenty percent of ischemic stroke is lacunar infarction. However, outcome of lacunar infarction is excellent, about 20-40% patients are suffered neurological worsening. Progressive lacunar infarction is associated poor functional outcome and neurological deficit. Currently, no treatment for progressive lacunar infarction is recommended on the guideline. Several small study reported that phenylephrine and magnesium may be helpful for progressive lacunar infarction. Carbogen is a mixture of 5% CO2 with 95% O2. Carbogen is safe and it is used for the treatment of sudden sensory neural hearing loss or ocular ischemia. CO2 dilate cerebral arteriole and concentration of CO2 is correlated with cerebral blood flow. Lacunar infarction is small and perfused with marginal flow by neighboring perforating arteriole. Increased cerebral blood flow following dilation of cerebral arteriole by CO2 might halt and revert progressive lacunar infarction. Induced hypertension is alternative treatment of progressive lacunar infarction. Increasing blood pressure also induce cerebral blood flow. Phenylephrine is an α1 agonist, phenylephrine act on peripheral artery and little effect on cerebral artery or heart. Several studies reported that the effectiveness of phenylephrine on progressing stroke. Therefore, this study will compare the effectiveness of carbogen versus phenylephrine in lacunar infarction patients who suffered neurological worsening.

NCT ID: NCT04770363 Completed - Stroke, Acute Clinical Trials

Comparison Between Unihemispheric and Bihemispheric TCDS in Subacute Ischemic Stroke Patients

Start date: February 1, 2021
Phase: N/A
Study type: Interventional

This is a randomized clinical trial to study the effect of tDCS in participants with subacute ischemic stroke, the study participants will be randomly assigned into three groups; bihemispheric, unihemispheric and sham group.

NCT ID: NCT04330222 Recruiting - Clinical trials for Cerebral Small Vessel Diseases

Cambridge 7 Tesla Cerebral Small Vessel Disease Study

CamSVD
Start date: March 9, 2020
Phase:
Study type: Observational

CamSVD is jointly sponsored by the University of Cambridge and Cambridge University Hospitals NHS Foundation Trust. We aim to explore and understand the underlying arterial pathology in Cerebral Small Vessel Disease (SVD) using ultra-high-field 7 Tesla MRI. We will optimise 7T Time-of-Flight MR angiography, blood suppressed MR sequence and phase-contrast (PC) MR angiography for visualization of perforating lenticulostriate arteries. This optimised sequences will be used to determine the range of arterial pathologies seen in individuals presenting with lacunar strokes. The pathologies of the perforating lenticulostriate arteries will be correlated with conventional clinical risk factors, cognition and radiological markers of SVD.

NCT ID: NCT04011202 Terminated - Stroke Clinical Trials

Virtual Reality, Mood, and Sedentary Behaviour After Stroke

Start date: August 21, 2019
Phase: N/A
Study type: Interventional

The purpose of this study is to: 1) evaluate the feasibility (e.g. recruitment and retention, administrative and participant burden) of a VR program to improve mood and sedentary behaviour in inpatient stroke survivors; and 2) develop an understanding of the effects of VR on mood and sedentary behaviours among inpatient stroke survivors.

NCT ID: NCT03635177 Completed - Stroke, Lacunar Clinical Trials

Effect of Remote Ischemic Conditioning on Vascular Health in Stroke Patients

VISP
Start date: March 10, 2019
Phase: N/A
Study type: Interventional

The main aim of the current study is to assess cardiovascular effects of remote ischemic conditioning in patients who have suffered from stroke. A group of stroke patients will be subjected to four weeks of daily remote ischemic conditioning and four weeks of placebo and vascular function is assessed as a primary outcome.

NCT ID: NCT03552926 Recruiting - Lacunar Strokes Clinical Trials

Constitution of a Clinico-radiological Database and a Biobank for Patients With Lacunar Infarcts

DHU-LAC
Start date: June 6, 2018
Phase:
Study type: Observational

The aim of this study is to determine in patients with a recent lacunar strokes (<15 days), the natural history of cognitive disturbances and disability.