Active clinical trials for "Cerebral Infarction"

The spinal cord is a very important part of the central nervous system. fMRI can be applied to observe functional status of the human spinal cord. Under different conditions, the investigators will see different types of fMRI signals within the spinal cord. In resting state, the investigators might see active/inactive signals, too.

this study discussed the pathogenesis, treatment, and prognosis of severe cerebral infarction and ophthalmic artery occlusion for Aisan induced by hyalruonic acid filler injection.

Cerebral infarction is a type of stroke that can lead to sometimes disabling sequelae. Among these sequelae, fatigue is frequently reported by patients. It is therefore important for doctors to understand why patients suffer from fatigue after cerebral infarction and to determine whether treatments given for the cerebral infarction may have an impact on this fatigue. The aim of this research was to study the frequency of fatigue after cerebral infarction, the associated factors, in particular the impact of treatments administered in the acute phase.

this study examines the incidence of newly developed delirium in patients who admit to university hospital stroke unit for cerebral infarction, and analyze the association between delirium motor subtypes and short-term outcome in post-stroke delirium patients.

The cerebral amyloïd angiopathy ( AAC) is a disease characterized by deposits of beta-amyloid peptids in the walls of the arteries of young and average calibre of the brain and the leptomeninx. The incidence of the AAC increases strongly with the age and represents a major cause of spontaneous brain haemorrhage to people over 60. The main demonstration is the lobar brain haemorrhage, the other ones are bleedings under arachnoid cortical and microbleedings leading to cognitive decline. Anatomical studies reported the presence of cortical infarcts in patients having amyloïd deposits suggesting an association between asymptomatic cortical cerebral infarcts and AAC. However prevalence and meaning of these infarcts in patients having an AAC remain badly known because of studies on low number of patients and the rarity of radiological analyses of these infarcts .A better knowledge of these asymptomatic cortical infarcts would allow to dread better cognitive disorders(confusions) presented by these patients, and to develop preventive strategies. Besides, the risk factors of severity of the AAC are little studied.

Prognosis of subarachnoid hemorrhage (SAH) is scarce, indeed almost half patients die or become severely disable after SAH. Outcome is related to the severity of the initial bleeding and delayed cerebral infarction (DCI). Infection and more precisely pneumonia have been associated with poor outcome in SAH. However, the interaction between the two pathologic events remains unclear. Therefore, we hypothesized that DCI may be associated to pneumonia in SAH patients. Thus the aim of the study is to analyze the association between delayed cerebral infarction and pneumonia in patients with SAH. Retrospective, observational, monocentric cohort study, including patient admitted in Neurosurgical Intensive Care Unit or Surgical Intensive Care Unit in the University Hospital of Brest (France) for non-traumatic SAH. Primary outcome is diagnosis of DCI on CT scan or MRI 3 months after SAH. Multivariate analysis is used to identify factors independently associated with DCI. We plan to include between 200 and 250 patients in the analysis.

Stroke is a major public health issue in developed countries. A full etiological work up within a short time is critical to implement the appropriate preventive treatment. The etiological work up is actually based on a clinical examination and on a group of paraclinical examinations. The realization of the standard strategy is time consuming, and increase the cost of the medical care. A non-invasive one-shot examination of the heart, the aorta and the cervical and intracranial arteries (cci-MRI) could overcome these disadvantages.The investigator therefore propose to carry out an overall assessment of the performance of the cci-MR in the etiological work up of ischemic strokes and TIAs compared to the reference strategy

Early outcome prediction after ischemic stroke (IS) is of great importance. Prognosis is usually based on clinical variables and neuroradiological findings while serum biomarkers may contribute to prognostic accuracy. Inflammatory biomarker Suppression of Tumorigenicity 2 (ST2) has been shown as promising in IMU outcome predicting. The relationship between ST2 serum values and IS severity is not fully clarified. The proposed hypothesis is that earlier releasing and higher ST2 serum concentrations will be associated with a worse IS outcome. In this prospective and observational study 20 patients with IS will be included and followed. The primary outcome is functional outcome according to the modified Ranking scale at 90 days. In case of hypothesis confirmation, theoretical contribution will be in a better understanding of pathophysiological changes in acute phase of IS, while the clinical purpose is to improve the prognostic procedure.

It is a retrospective cross-sectional study, where consecutive stroke patients with vessel occlusion on magnetic resonance angiography (MRA) will be included for the study for one year. The relation of Susceptibility vascular sign (SVS) on Susceptibility Weighted Imaging (SWI) with risk factors and territory involved and length of thrombus will correlated with the National Institutes of Health stroke scale (NIHSS).Among total number of patients included in this study the demographics of the patients will be calculated. Risk factors for stroke of the patients included in this study will tabulated. The site of occlusion will be tabulated. The mean NIHSS scale will be calculated. Presence of SVS in patients with MR angiography positive vessel occlusion will be calculate in percentage. Subgroup analysis of presence of SVS on SWI will be done. The mean length of the thrombus will be calculated in these patients with positive SVS. Correlation between SVS on SWI with the risk factor of the patient by using the chi-square test will be calculated. A Chi-square test will be done to find out the correlation between the SVS with territorial occlusion. The correlation between the NIHSS score and length of thrombus will be calculated using the Pearson test. SWI can be useful in identifying the location of the thrombus, and NIHSS can determine the thrombus length in acute stroke. A higher incidence of SVS can be associated with risk factors and it also depends upon the site of occlusion of the vessel.

Cerebral infarcts represent a major cause of morbidity/mortality in spite of therapeutics for a premature recanalisation (intravenous recombinant tissue plasminogen activator (rt-PA) and thrombectomy). Thrombolysis failure by the administration of rt-PA is frequent, in particular in proximal occlusion. Experimental studies suggest that neutrophils could play an important role in the thrombus development via the organization of a network (NET) within the thrombus. Targeting this network of NET could, in addition to the fibrinolysis, increase the rate of recanalisation and thus improve the neurological prognostic after a cerebral infarct. The aim of the research is to Study of the biochemical and histological composition of the stemming thrombi of cerebral thrombectomies with in vitro analysis of the sensibility in the thrombolysis induced by rt-PA +/- Desoxyribonuclease I (DNase I).