View clinical trials related to Cerebral Tumor.
Filter by:Interactions between the perceptual and motor systems are fundamental to the performance of complex motor tasks and are at the heart of the fine motor control required for the production of complex sounds such as speech production or playing a musical instrument. In such situations, the brain must learn to generate relevant motor commands to a sound-producing system with fixed physical characteristics, such as the vocal tract or a musical instrument. No study has yet been able to directly test the dynamic aspect of this sensorimotor learning in an acoustic production task with fine motor control. The Adolphe de Rothschild Foundation Hospital takes care of patients requiring awake surgery. During these procedures, a direct cortical recording, called electro-corticography, is performed in order to better delineate the tumor or epileptogenic resection area. Reference recordings are made in healthy areas at a distance from the lesion site making it possible to record normal brain activity. In this case, we would propose to the patient to use a tool similar to the theremin (a musical instrument the size of a golf ball whose displacement in space modulates the frequency and the harmonics of a sound). The patient should therefore learn in order to create relevant motor patterns.
Awake craniotomy require a cooperative patient during resection neurosurgery phase. Anesthesiologist should guarantee analgesia, sedation, nausea and vomiting prevention, while maintaining normal vital parameters. Neurosurgeon could be help by Intraoperative electrocorticography to maximise lesion resection and avoiding neurologic sequelae. Propofol and remifentanyl have been largely used. Dexmedetomidine represents an alternative. However little is known about the role of dexmedetomidine on Intraoperative electrocorticography.
This study aims to investigate the effect of Sphenopalatine Ganglion Block on ICP and arterio- jugular venous oxygen difference (AJVDO2) and jugular bulb oxygen saturation (SjVO2). Throughout this study, the efficacy of Sphenopalatine Ganglion Block as scalp block in craniotomy operation will be assessed, and the effect of SPGB on cerebral hemostasis during craniotomy will be evaluated by monitoring of both ICP, AJVDO2 and SjVO2.
In brain tumor surgery we are confronted mainly with two types of difficulties: (i) the identification of the tumor and its limitations in relation to the healthy brain; (ii) the identification of functional cerebral regions, ie implicated in neurological function (motor skills, sensitivity, language, vision, cognition, etc.). The reference method currently used to improve the quality of resection of brain tumors while minimizing neurological risk for patients is so called "wakeful" surgery with direct electrical stimulation (DES) of the brain. The investigators routinely use ultrasound to localize the tumor within the brain, but to date there is no pre- or intra-operative imaging tool to reliably identify tumors and functional brain regions. There is therefore a need for innovative imaging in this field. For this reason, the investigators propose to evaluate the interest of a new High Frequence Ultrasound Doppler (HFUD) (VEVO ®, Visualsonics, Toronto, Canada) in the surgical management of patients operated in an awake condition for a brain tumor. The ultra high frequency allows to reach a spatial resolution of 30 μm, 5 to 10 times better than MRI and conventional ultrasound. The Doppler mode allows the detection of microvascular flows of speeds less than 1 mm / second. The safety of this device is demonstrated and validated by CE marking (December 2015).
The purpose of this study is to measure the tissular oxygen saturation in brain by magnetic resonance imaging on subjects and to correlate the results with near infrared spectroscopy measurements.
The study is to observe the effects of gabapentin premedication on postoperative pain,vomiting and nausea in patients undergoing neurosurgery. 100 neurosurgical patients are randomized into groups gabapentin(GG) or placebo(GP). Patients are given gabapentin or placebo orally the night before operation day and 2hours before surgery,respectively.The investigators hypothesized that lower incidence of postoperative pain,vomiting and nausea be observed in GG than GP.