View clinical trials related to Ischemic Stroke.
Filter by:This study will compare early with late start of treatment with Non-vitamin K oral anticoagulation (NOAC) in adult patients with acute ischemic stroke and atrial fibrillation; it is a registry-based randomized clinical trial (R-RCT) using The Swedish Stroke Register (Riksstroke). Half of the patients will start NOAC early (within 4 days after stroke onset) while the other half will start late (5-10 days after stroke onset).
Background: Different studies with real-life data and randomized controlled trials have shown a detection rate of paroxysmal atrial fibrillation (AF) of 10-20% in patients with cryptogenic stroke using insertable continuous cardiac monitoring for 6 months. More studies are needed, however, to identify factors which can be used to select the patients where the possibility of detecting AF with prolonged rhythm monitoring is highest, to evaluate the best duration of rhythm monitoring, to determine the optimal definition of short-term AF that warrants intervention and to evaluate whether intervention results in improved clinical outcomes. Methods: The NOR-FIB study is a multi-centre prospective observational trial, designed to evaluate detection of AF in cryptogenic stroke and transient ischemic attack (TIA). Patients admitted with cryptogenic stroke or TIA in stroke units in the Nordic countries, aged 18-80 years are included and have the Reveal LINQ® Insertable cardiac monitor system implanted for 12 months for the purpose of AF detection. Biomarkers that may identify patients, who could derive the most clinical benefit from the detection of AF by prolonged monitoring, are being studied. Conclusion: This NOR-FIB study will increase our knowledge regarding the occurrence of AF in patients with cryptogenic stroke and TIA that potentially can improve secondary prevention. The study will provide information on biomarkers that may be used to select cryptogenic TIA and stroke patients for long-term monitoring as well as information on the significance of short-term AF and optimal duration of cardiac rhythm monitoring.
Cerebral autoregulation is an important mechanism whereby cerebral perfusion is normally maintained at a constant level, over a relatively wide blood pressure range. It can be assessed noninvasively by the use of Trans Cranial Doppler (TCD). This means using ultrasound probes over both sides of the head to measure changes in blood flow in one of the main brain arteries (the middle cerebral artery) in response to beat to beat changes in blood pressure dynamic cerebral autoregulation (dCA). It is established that dCA is impaired following moderate to severe stroke, acting as a key role in the development of secondary brain damage related to brain swelling and further damage related to the low blood flow. The administration of clot busting therapy (thrombolysis), one of the main approved treatments of acute ischaemic stroke (AIS), results in recanalisation of the blocked artery in only approximately 50% of patients. Therefore, as well as attempts to treat major vessel blockage, improving brain blood flow, particularly to the penumbral area, through arteries that bypass the blockage is another potential therapeutic approach in AIS.One simple way of achieving this might be to lower the head of AIS patient into a lying flat (0⁰) position. However, to date, there have been very few studies exploring this. This research will use the noninvasive technique of Trans Cranial Doppler (TCD) to see how blood flow changes in different head positions, both in healthy volunteers and AIS patient. This study will provide important data regarding blood pressure management in acute stroke, an important and common clinical dilemma.
This is a double blind randomized clinical trial to evaluate the effect of radial shock waves on functional recovery of the upper limb of patients with sequelae of ischemic strokes in the territory of the middle cerebral artery. A total of 20 patients will be enrolled and will undergo motor, functional and cortical excitability evaluations before and after four weekly sessions of radial shockwaves. 5,000 pulses with a frequency of 15 Hz and 3.5 to 4 bar of air pressure will be applied to the active group, resulting in an energy flux density (EFD) of approximately 0.07 mJ/mm2. The sham group will receive identical treatment, except for the fact that no energy flux will be applied.
Stroke rehabilitation of hemiplegics primarily lies in motor control and training of activities of daily life. Whole body aerobics is much less emphasized. Nonetheless, cardiopulmonary fitness of even ambulatory hemiparetics is only half compared with healthy people, which is prone to deconditioning. The present study aims to understand the efficacy of aerobic training in addition to the usual neuro-rehabilitation, including aerobic fitness, daily activities dependency, anti-inflammation and anti-thrombosis. This is a prospective and randomized design. The subjects will be recruited from the hospitalized patients in the rehabilitation ward of Chang Gung Memorial Hospital at Linkuo. 120 hemiplegic patients due to stroke will be enrolled and randomized into two groups: combined training (CT) and usual rehabilitation. Participants in CT will receive aerobics at moderate intensity in addition to the usual rehabilitation. The program has 35 minutes/session, 5 sessions/week and 4-5 weeks in total. A constant-power semi-recumbent stepper will be employed as the training modality. It uses bilateral reciprocal movement of the arm coupled with the opposite leg, which allows for a push and pull motion. Additional 20 healthy participants will also be recruited as the healthy control. Assessment before and after training includes: (I) graded cardiopulmonary exercise test using constant-load stepper. (II) Functional Independence Measure. (III) coagulation system assessment, using Thrombin generation assay and Ceveron alpha (Technoclone GmbH, Vienna, Austria) : Von Willebrand factor, tissue plasminogen activator, plasminogen activator inhibitor-1, D-dimer, factor VIII, etc. [the 1st year]; (IV) monocyte-platelet aggregation and its subtypes, using flow cytometry [the 2nd year]. ( V) systemic inflammation, platelet activation and prognostic biomarker：C-reactive protein, soluble P-selectin, asymmetric dimethylarginine, Lipoprotein-Associated Phospholipase A2, etc [the 3rd year]. Statistical analysis will use ANOVA with post-hoc, two-way repeated measure ANOVA, etc. The investigation will start after approval and end in 2019, July. We hope this investigation will establish a more comprehensive rehabilitation program for clinical application.
This study is to evaluate the effect of dilitazem on the single-dose PK of BMS-986141 with parameters like Cmax, AUC(INF), and AUC(0-T).
Despite several scientific and technological advances, there is no single neuroprotective treatment that can reverse the brain damage after acute ischemic stroke (AIS). Neuroactive steroids are cholesterol-derived hormones that have the ability to modulate the normal and pathologic nervous system employing genomic and non genomic mechanisms. In this work, we first investigated if AIS affects the plasma concentration of five neuroactive steroids (cortisol, estradiol, progesterone, testosterone and 3-alpha androstenediol glucuronide). Second, we studied if levels of circulating steroids associate with neurological, cognitive and functional outcome in a cohort of 60 to 90 year-old male and female patients with AIS. For this purpose, we recruited patients who were hospitalized at the Emergency Room of the Central Military Hospital within the first 24 hours after stroke onset. We designed two experimental groups, each one composed of 30 control subjects and 30 AIS patients, both males and females. The assessment of neurological deficit was performed with the NIHSS and the tests used for the functional and cognitive status were: (1) modified Rankin Scale; (2) Photo test and (3) abbreviated Pfeiffer's mental status questionnaire.
This is a phase 1, blinded-outcome, randomized, placebo controlled study to investigate the safety and feasibility of super-selective intra-arterial administration of verapamil and magnesium sulfate immediately following successful endovascular thrombectomy as a potential neuroprotective synergistic therapeutic strategy in emergent large vessel occlusion stroke. This trial represents the first time that magnesium sulfate will be evaluated in human subjects as a superselectively administered neuroprotective agent administered in an acute time frame as an adjunct to intra-arterial thrombectomy. Furthermore, it will represent the first trial to evaluate combinational therapy for acute stroke neuroprotection.
Early thrombolysis is essential in treating ischemic strokes. The time window for thrombolysis is limited to 4,5 hours after symptoms onset. In the French region of Franche Comté, in order to reduce the thrombolytic delay, a telemedicine network was developed between the neurovascular reference unit (NVU) localised in the University Hospital of Besançon and the peripheral hospital centres. Patients may then be transported to the NVU immediately after the thrombolysis initiation. The aim of our study was to assess the relevance of a systematic medicalization of transfer to the NVU of patients with stroke who were telethrombolyzed before. It was a retrospective, monocentric and observational study conducted over 24 months, in Franche-Comte (France).
To evaluate the ability of NICU (NeuroIntensive Care Unit) staff to interpret, before and after a training period, symmetry, sedation level, seizures activities and artefact on continuous cEEG/qEEG (continuous electroencephalography/quantitative electroencephalography) tracings.