Active clinical trials for "Brain Ischemia"

Cerebral oxygen desaturation during cardiac surgery measured using near infrared spectroscopy (NIRS) derived cerebral oximetry has been associated with significant postoperative morbidity. If significant desaturation occurs during this period, it may represent an ideal opportunity to further optimize the postoperative care of these patients.

The main goal of this study is to quantitatively assess the sucking and feeding activity of infants at high risk of neurological impairment (preterm infants and term infants at risk of abnormal neurodevelopment) during oral sucking and feeding and correlate it with their underlying neurological impairment for the early diagnosis of brain injury.

A longitudinal study evaluating the predictive ability of near infrared spectroscopy to predict brain injury in infants with hypoxic ischemic encephalopathy. Data will be analyzed at two different time periods, at discharge and again at 2 years of age.

Stroke is the leading cause of adult disability in Europe and United States and the second leading cause of death worldwide and affects more than 10,000 Danes each year. Studies in a late and stationary phase after stroke have shown that physical rehabilitation is of great importance for survival and physical ability of these patients, however many studies show that patients lie or sit next to their bed under hospitalization for more than 88.5 % of the daily hours. Physical activity in stroke patients has never previously been measured immediately after debut of symptoms; furthermore there is no knowledge about the optimal dose of physical rehabilitation for these patients. Accelerometers, small measuring devices, are a relatively new way to measure physical activity precisely, and hence it is possible to obtain an objective measure of how active stroke patients are in the first week after admission. The accelerometers measure a variable voltage, depending on the range and intensity of movement. They can measure movement dependent of the placement of the accelerometer, for instance over the hip, arm or leg. Studies confirm their reliability, even in patients with abnormal gait, such as stroke patients. Another approach of studying the effects of physical activity and rehabilitation is through the examination of biomarkers. Studies have shown that biomarkers released during physical activity can inhibit biomarkers released after tissue injury in the brain, as seen after stroke. These brain biomarkers cause further damage and studies show that the higher the levels, the higher the damage. It is therefore obvious to examine whether physical activity rehabilitation can down regulate this destructive process in patients with stroke. Clarification of the optimal dose of physical activity in stroke patients immediately after debut of symptoms and examination of both the biochemical aspects of physical rehabilitation as well as the optimal dose of physical rehabilitation is of great importance for many patients, their relatives as well as of a great socioeconomic importance. The purpose of the project is to investigate feasibility of treadmill training on a weight-bearing treadmill in the acute phase after admission after an ischemic stroke. Furthermore we wish to investigate the acute inflammatory response after ischemic stroke and whether it changes with treadmill training.

Compare the changes of regional cerebral oxygen saturation during midazolam or dexmedetomidine sedation for spinal anesthesia in the elderly patients who undergoing femur surgery.

An extension of the MIDAB trial, the MIDAB-Follow-up trial will evaluate the neurodevelopmental outcomes at 22-26 months age of term/late preterm infants who were depressed at birth and received umbilical cord milking (UCM) or immediate cord clamping (ICC).

The goal of this observational study is to compare the differences in the features of cerebral multifrequency EIT(cMFEIT) images between healthy subjects and patients with brain diseases and to explore the possibility of applying multifrequency EIT to intracranial abnormality detection.16 healthy volunteers and 8 patients with brain diseases were recruited as experimental subjects, and the cerebral EIT data of 9 frequencies in the range of 21 kHz - 100 kHz of all subjects were acquired with an EH-300 MFEIT system.

Primarily, the investigators want to test the hypothesis that it is possible to detect epileptiform EEG during cardiac surgery under general anesthesia. Furthermore, the investigators will examine if those epileptic potentials coincide, follow or are unrelated to ischemic events detected by EEG or Near-infrared spectroscopy (NIRS). Finally, the investigators will look for independent associations between intraoperative seizures (with or without ischemic events) and postoperative neurological outcome, as well as between intraoperative seizures (with or without ischemic events) and the total amount of TXA given.

This is a single institutional registry database for the patients with stroke and cerebrovascular diseases. Stroke is the fifth leading cause of death in the United States. Despite extensive research, most of the patients die or suffer from varying degree of post-stroke disabilities due to neurologic deficits. This registry aims to understand the disease and examine the disease dynamics in the local community.

The purpose of this study is to validate results from a related trial (NCT01791257) and to compare the profile of microRNA in blood from patients suffering subarachnoid hemorrhage with and without systemic complications.