Articles: brain-injuries.
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Randomized Controlled Trial Comparative Study Clinical Trial
Desflurane and isoflurane have similar effects on cerebral blood flow in patients with intracranial mass lesions.
Before desflurane is advocated for patients undergoing neurosurgical procedures, it is necessary to determine the effect of desflurane on cerebral blood flow (CBF). In this study, CBF values are compared between desflurane and isoflurane at two doses. In addition, CBF reactivity to CO2 and the effect of prolonged exposure were compared between the two agents. ⋯ Desflurane and isoflurane are similar in terms of absolute CBF, the response to increasing doses, and the preservation of CO2 reactivity.
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Arch Phys Med Rehabil · Sep 1993
Comparative StudyUndetected musculoskeletal trauma in children with traumatic brain injury or spinal cord injury.
A prospective study of 82 traumatically injured patients was conducted to determine the frequency with which skeletal trauma was undetected at acute care facilities. The clinical significance of each instance of undetected trauma on the patient's rehabilitation programs was assessed. Between May 1987 and October 1988, all trauma patients who sustained a spinal cord injury (SCI) or a severe traumatic brain injury (TBI) had total body bone scans (Tc-99mMDP) prior to beginning rehabilitation. ⋯ Additionally, heterotopic ossification was detected in 14 children, of which only two sites were previously known. In three children with TBI, the area of heterotopic ossification impeded functional range of motion. Based upon this data we conclude that a total body bone scan is useful in the child with TBI for the detection of undiagnosed skeletal or soft tissue trauma and heterotopic ossification not recognized during acute care.
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J. Cereb. Blood Flow Metab. · Sep 1993
Comparative StudyHypothermia attenuates the loss of hippocampal microtubule-associated protein 2 (MAP2) following traumatic brain injury.
Traumatic brain injury (TBI) produces a tissue-specific decrease in protein levels of microtubule-associated protein 2 (MAP2), an important cross-linking component of the neuronal cytoskeleton. Because moderate brain hypothermia (30 degrees C) reduces certain neurobehavioral deficits produced by TBI, we examined the efficacy of moderate hypothermia (30 degrees C) in reversing the TBI-induced loss of MAP2 protein. Naive, sham-injured, and moderate (2.1 atm) fluid percussion-injured rats were assessed for MAP2 protein content 3 h post injury using quantitative immunoreactivity measurements. ⋯ Fluid percussion injury dramatically reduced MAP2 levels in the normothermic group (44.3 +/- 5.9%; p < 0.0005) compared with normothermic sham-injured controls. No significant reduction of MAP2 was seen in the hypothermic injured group (95.2 +/- 4.6%; compared with hypothermic sham-injured controls, p > 0.20). Although it is premature to infer any causal link, the data suggest that the attenuation of injury-induced MAP2 loss by hypothermia may contribute to its overall neuroprotective action.