View clinical trials related to Brain Tumor.
Filter by:The purpose of this study is to estimate the EC90 of remifentanil blunting hemodynamic changes to head fixation in the patients undergoing neurosurgery.
The normal cerebral blood flow is guided by factors such as cerebral autoregulation (CA) and carbon dioxide reactivity (CO2R). Authors have demonstrated that CA and CO2R may be impaired in presence of intracranial tumors.Most studies pertaining to assessment of CA and CO2R in patients with brain tumors is limited to supratentorial tumors. Due to their anatomic location, posterior fossa tumors result in obstruction of ventricular outflow, produce hydrocephalus and features of raise intracranial pressure (ICP). It is possible that lesions in the posterior fossa may affect CA and CO2R. It should also be noted that posterior fossa surgeries are carried out in positions such as prone, lateral and sitting. Altered surgical positions themselves affect systemic hemodynamics which may influence cerebral blood flow; with presence of anesthetics further compromising the blood flow to the brain. Understanding the homeostatic mechanisms of CA and CO2R may help in deciding proper positioning of patients and maintenance of intraoperative hemodynamic. The aim of this observational study was to evaluate CA and CO2R in patients with posterior fossa tumor prior to surgical decompression of the lesion.
Hemiplegia (weakness or poor muscle function on one side of the body) is a neurological impairment which can occur in children as a result of a brain tumor or related treatment. This impairment can negatively impact the child's functional abilities and movement development, making it difficult for them to play, learn to feed, dress or bathe themselves, and to participate fully in home, daycare, or school environments. Poor movement skills may also impact overall quality of life. Constraint Induced Therapy is a rehabilitation technique which has been found to improve the child's abilities to move their arms following neurological injuries like stroke and traumatic brain injury in both adults and children. The aim of this study is to evaluate the feasibility of implementing a constraint induced movement therapy program in a small group of children with a brain tumor and hemiplegia. Children who participate in the program may experience improved ability to use their weak arm leading to increased participation in meaningful activity and improved quality of life.
The goal of Phase 1 of this clinical research study is to find the highest tolerable dose and best schedule of the combination of everolimus and sorafenib that can be given to patients with malignant glioma. The goal of Phase 2 of this study to learn if the combination of everolimus and sorafenib can help to control malignant glioma. The safety of this combination will also be studied in both phases.
This study is being conducted to evaluate the safety and tolerability of Xerecept® in children with central nervous system tumors and to identify appropriate doses of Xerecept® to be used in subsequent pediatric clinical trials.
Some patients with brain tumors receive standard radiation to help prevent tumor growth. Although standard radiation kills tumor cells, it can also damage normal tissue in the process and lead to more side effects. This research study is looking at a different form of radiation called proton radiotherapy which helps spare normal tissues while delivering radiation to the tumor or tumor bed. Proton techniques irradiate 2-3 times less normal tissue then standard radiation. This therapy has been used in treatment of other cancers and information from those other research studies suggests that this therapy may help better target brain tumors then standard radiation.
The investigational part of this study is using a mobile PET/CT scanner to take images of the participants tumor immediately after they are treated with proton radiation. This allows the participant to be treated and imaged on the same bed. The information obtained may improve the accuracy of treatment and may help to minimize the dose delivered unnecessarily to healthy tissue.
Children treated for a brain tumor (BT) or acute lymphoblastic leukemia (ALL) show elevated rates of working memory impairment. Working memory (WM) is the ability to hold and manipulate information online; for example, when an individual mentally rehearses a phone number in order to dial it without writing it down. A computer-based working memory intervention has been successful in children diagnosed with ADHD and stroke survivors. Individuals participating in the intervention showed improvements on working memory measures as well as more complex problem solving skills. Neuroimaging (brain scans) conducted before and after training showed changes in brain activation suggestive of underlying changes in brain systems that support working memory. This study investigates the effectiveness of this computer-based working memory intervention for childhood cancer survivors.
The purpose of this study is to assess the ability of a modified thermoplastic mask system in keeping an individual head stationary for a predefined amount of time. The investigators hope to know if the modified mask is study enough, and also if the modification on the mask will allow the investigator see and track the individual's movement underneath the mask by means of a camera that can detect light reflected from the individual. Participants will lay down on their backs and their heads will be held in place with the mask system for approximately 1 hour.
The aim of this study is to follow up with all of the pediatric brain tumor patients who received proton beam radiation therapy at Massachusetts General Hospital (MGH) for which there is baseline neuropsychological testing in order to measure changes, if any, in neurobehavioral functioning (executive skills, emotional/behavioral functioning, and adaptive abilities) and their use of special education services at one year or more post-treatment. The investigators will also correlate neurobehavioral data with pertinent clinical information. Participation will be maximized through the use of mail-in, parental- and self-report questionnaires.