View clinical trials related to Hypoxia, Brain.
Filter by:This research is being done to find out the safety of the investigational study drug, Clonidine Hydrochloride ( CLON). , in infants who are undergoing whole body cooling for the treatment of hypoxic ischemic encephalopathy (HIE). The only known and effective treatment for HIE is therapeutic hypothermia or whole body cooling for72 hours. During the cooling process, babies get agitated, shiver and are uncomfortable. To treat these side effects morphine is frequently used. CLON is very effective in decreasing shivering in adults and children. Furthermore, in some preclinical studies, clonidine has been shown to be neuroprotective (safe for the brain in models of brain injury)..This is a Phase I-II to determine if low dose CLON will reduce the incidence of shivering and whether it has short term cardiovascular safety. In this Phase I-II study, the investigators will determine the (i) the maximum tolerated dose of CLON during cooling for HIE, (ii) the effects of CLON on heart rate, blood pressure, core body temperature and cerebral autoregulation (ability to maintain constant blood flow to the brain) and (iii) association between blood levels and changes in the above parameters. In this study the investigators hope to find ways to improve sedation, shivering and agitation in newborn infants with HIE on the cooling protocol. Our ultimate goal is determine the potential neuro-protective properties of clonidine in newborn babies with HIE.
This study is a randomized, controlled trial to assess safety and effectiveness of whole body hypothermia for 72 hours in preterm infants 33-35 weeks gestational age (GA) who present at <6 hours postnatal age with moderate to severe neonatal encephalopathy (NE). The study will enroll infants with signs of NE at 18 NICHD Neonatal Research Network sites, and randomly assign them to either receive hypothermia or participate in a non-cooled control group.
the purpose of this study is to investigate whether propofol and sevoflurane have difference effect on cerebral oxygenation .
Intracranial Hemorrhage (ICH) is an important morbidity affecting premature infants and can have considerable effects on neurodevelopmental outcome. The investigators showed that preterm infants with severe ICH have decreased cerebral oxygenation several weeks after the hemorrhage. The mechanisms involved in this state of decreased cerebral oxygenation in preterm infants and the effects on cerebral function are unknown. This longitudinal observation study will evaluate physiologic parameters to determine trends in cerebral oxygenation and function in preterm infants with ICH in comparison to infants without ICH.
While the exercise responses are classically described at the cardiorespiratory and muscle levels, recent data suggest that the brain is also significantly stressed by exercise and may even participate to performance limitation. In hypoxia in particular, cerebral responses to exercise may be altered and promote performance reduction during endurance exercise. In the present study, the investigators used innovative approaches to assess cerebral perturbations associated with exercise in hypoxia.
The purpose of this study is to determine whether the plasticity of autologous intravenous application of cord blood stem cells would improve the clinical course of asphyxiated newborns.
Using the brain and the heart as index organs, perioperative interventions to optimize cerebral oxygen saturation and cardiac contractility in high-risk patients undergoing cardiac surgery should have a beneficial systemic effect for enhancing global tissue perfusion and improve outcomes.
The Optimizing Cooling trial will compare four whole-body cooling treatments for infants born at 36 weeks gestational age or later with hypoxic-ischemic encephalopathy: (1) cooling for 72 hours to 33.5°C; (2) cooling for 120 hours to 33.5°C; (3) cooling for 72 hours to 32.0°C; and (4) cooling for 120 hours to 32.0°C. The objective of this study is to evaluate whether whole-body cooling initiated at less than 6 hours of age and continued for 120 hours and/or a depth at 32.0°C in will reduce death and disability at 18-22 months corrected age.
This study is a randomized, placebo-controlled, clinical trial to evaluate whether induced whole-body hypothermia initiated between 6-24 hours of age and continued for 96 hours in infants ≥ 36 weeks gestational age with hypoxic-ischemic encephalopathy will reduce the incidence of death or disability at 18-22 months of age. The study will enroll 168 infants with signs of hypoxic-ischemic encephalopathy at 16 NICHD Neonatal Research Network sites, and randomly assign them to either receive hypothermia or participate in a non-cooled control group.
The aim of this study is to determine effect of proprioceptive stimulation with passive gait training on the cortical activity in patients with severe brain injury, demonstrated as changes in EEG (electroencephalogram)and ERP (Event Related Potentials). Hypotheses: 1) Proprioceptive stimulation increases EEG-frequency in patients with impaired consciousness due to severe brain injury. 2) Proprioceptive stimulation increases conductivity speed of the cognitive P300-component of ERP in patients with impaired consciousness due to severe brain injury.