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Active clinical trials for "Brain Ischemia"

Results 241-250 of 342

Using fMRI and sEMG to Evaluate the Effects and Mechanism on Abdominal Acupuncture Combined With...

Brain IschemiaHemiplegic Patients With Stroke3 more

Using random number method to categorize the selected first onset patients with stroke who meet the inclusion criteria into 3 groups.The patients were randomly divided into treatment group A(abdominal acupuncture+upper limb rehabilitation training, 22 cases), treatment group B(Sham abdominal acupuncture+upper limb rehabilitation training, 22 cases),and control group(upper limb rehabilitation training, 22 cases). SEMG and fMRI examination and related stroke rehabilitation assessment scales were evaluated before and after treatment.

Unknown status13 enrollment criteria

Comparison of Carbon Dioxide and Saline Flush to Saline Flush in TEVAR and TAVI Procedures to Reduce...

Thoracic Aortic AneurysmAortic Stenosis Symptomatic2 more

Thoracic endovascular repair (TEVAR) and transcatheter aortic valve implantation (TAVI) are standard of care procedures to treat thoracic aortic aneurysm or severe aortic stenosis, respectively. Both procedures have a high risk of stroke and silent infarction. Gas has been detected in the cerebral vasculature during these procedures and associated with DWI positive lesions on MRI. The hypothesis is that air emboli contribute to stroke and silent infarction. The investigators propose addressing air emboli by flushing the device with carbon dioxide prior to flushing with saline. This is a pilot study comparing standard saline flush alone to carbon dioxide flushing with saline flush.

Unknown status14 enrollment criteria

The Effect of Positive End Expiratory Pressure (PEEP) During Laparoscopic Cholecystectomy

Brain Ischemia

During the laparoscopic cholecystectomy, Pneumoperitoneum could affect to the regional oxygen saturation of brain. positive end expiratory pressure (PEEP)could improve the respiratory parameters include oxygenation. So applying PEEP could improve the regional brain oxygen saturation (rSO2)

Completed8 enrollment criteria

Detection of Silent Atrial Fibrillation aFter Ischemic StrOke

Ischemic StrokeCerebral Infarction7 more

The primary objective of this study is to evaluate whether, in patients with first-ever atherothrombotic or lacunar stroke without any previous history of atrial fibrillation (AF)/atrial flutter (AFL)/atrial tachycardia (AT), the detection of AF/AFL/AT (silent or symptomatic) by using a continuous cardiac rhythm monitoring with implantable loop recorder (ILR) during the first 12 months of observation is higher than the detection by using a standard cardiac monitoring (physical exam, 12-lead electrocardiogram [ECG] at baseline, 3, 6, and 12 months and Holter ECG at 3 months) in the same period of time.

Completed25 enrollment criteria

Impact of Interscalene Nerve Block on Cerebral Perfusion During Surgery in the Beachchair Position...

Cerebral Ischemia

Beachchair position is used by many orthopaedic surgeons for shoulder surgery. Most patients undergoing surgery in this position have no complications. However, reported cases of postoperative neurological deficits have highlighted the risk of cerebral and spinal cord ischemia. The etiology of such complications remains unclear. The most plausible explanation for these events would be intraoperative hypotension followed by cerebral hypoperfusion. General anesthesia is commonly used for shoulder surgery in conjunction with interscalene brachial plexus blockade. During the block, local anesthetic's spread is frequently observed leading to a block of sympathetic fibres. Since all nerves located in the head and neck area go through the stellate ganglion, its block will cause a sympathetic denervation and a decrease of the peripheral vascular resistance, thus increasing the circulation in cerebral blood vessels. In normal situations, there is a vasoconstriction of the cerebral blood vessels in response to a sympathetic stimulation and a vasodilation if sympathetic fibres are blocked. Transcranial Doppler (TCD) is a non-invasive examination that provides a reliable evaluation of intracranial blood flow in real-time. It can help to detect sudden changes in perfusion and identify potential embolic events. Some studies using TCD have shown an increased ipsilateral cerebral blood flow (CBF) secondary to a reduced vascular tone associated with a stellate ganglion block. Others have shown a reduction of contralateral CBF that could theoretically increase the risk of ischemia in the affected area. This study will assess the role of interscalene nerve blockade in the protection of cerebral ischemia and preservation of cerebral autoregulation. This study will also aim to identify changes in contralateral CBF. The investigators hypothesize that: Interscalene nerve block will increase CBF Interscalene nerve block will not decrease contralateral CBF Cerebral autoregulation will be preserved under general anesthesia in conjunction with an interscalene nerve block in this setting.

Completed8 enrollment criteria

Critical Periods After Stroke Study (CPASS)

StrokeBrain Infarction3 more

To perform an exploratory single center randomized study that will form the basis for a larger scale, more definitive randomized clinical trial to determine the optimal time after stroke for intensive motor training. The investigators will perform a prospective exploratory study of upper extremity (UE) motor training delivered at higher than usual intensity at three different time points after stroke: early (initiated within 30 days) subacute/outpatient (initiated within 2-3 months) chronic (initiated within 6-9 months) The control group will not receive the therapy intervention during the 1-year study. Outcome measures will be assessed at baseline, pre-treatment, post-treatment, 6 months and one year after stroke onset. Compared to individuals randomized during the outpatient (2-3 months after stroke onset) or chronic (6-9 months after stroke onset) time points, participants randomized to early intensive motor training will show greater upper extremity motor improvement measured at one year post stroke.

Unknown status27 enrollment criteria

Cerebral Oximetry in Cardiac Surgery to Reduce Neurological Impairment and Hospital Length-of-stay...

Cardiac SurgeryNeural Injury1 more

Cerebral oximetry using near-infrared spectroscopy (NIRS) has been shown to reduce the incidence of neurological dysfunction and hospital length-of-stay in adult cardiac surgery though not all studies agree. A previous audit using cerebral saturations at or above baseline showed improved neurological and length-of-stay outcomes.

Completed5 enrollment criteria

Effect of Positive End Expiratory Pressure (PEEP) on Cerebral Oxymetry During Laparoscopy

Cerebral Ischemia

The investigators hypothesized that positive end expiratory pressure (PEEP) would increase the regional oxygen saturation (rSO2).

Completed2 enrollment criteria

Continous Renal Replacement Therapy With the CARPEDIEM® in a French National Cohort of 25 Neonates...

Hypoxic-Ischemic EncephalopathySepsis5 more

Historically, CKRT and hemodialysis were performed in small infants and newborns with devices developed for adults with high rates of complications and mortality. We aim to retrospectively report the first multicenter French experience of CARPEDIEM® use and evaluate the efficacy, feasibility, outcomes, and technical considerations of this new device in a population of neonates and small infant. Compared to adult's device continuous renal replacement therapy with an adapted machine allowed successful blood purification without severe complications even in low birth weight neonates.

Completed4 enrollment criteria

Prospective Record Of the Use of Dabigatran in Patients With Acute Stroke or TIA

Brain Ischemia With Non-valvular Atrial FibrillationTransient Ischemic Attack With Non-valvular Atrial Fibrillation

The multi-center, prospective PRODAST study is investigating patients with non-valvular atrial fibrillation (AF) who experienced an ischemic stroke or a transient ischemic attack (TIA) recently (≤ 1 week) both with and without previous oral anticoagulation. It consists of a baseline visit and a 3 months central follow-up for patients who were discharged with dabigatran, vitamin K-antagonists, antiplatelets only, or no oral antithrombotic treatment at all. Thus, data on the use of dabigatran and vitamin K-antagonists in routine clinical practice will be collected to describe how dabigatran is prescribed and used in the population of AF patients with recent cerebrovascular events and how these factors influence important outcome and safety events. The utilization of dabigatran will be assessed with regards to treatment persistence, compliance, proportion of patients discontinuing treatment and reason for discontinuation as well clinical endpoints such as major bleeding, stroke or systemic embolism. Due to the fact that patients will be treated according to local medical practice it is possible that medication will be changed during the observation period. In the follow-up, data from the first as well as from the second prescribed medication will be used in the study. To explore a long-term effect of anticoagulation, survival up to one year will be assessed.

Completed7 enrollment criteria
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