Articles: traumatic-brain-injuries.
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Observational Study
Association of Severe Traumatic Brain Injury Patient Outcomes With Duration of Cerebrovascular Autoregulation Impairment Events.
Cerebrovascular autoregulation (CA) is an important hemodynamic mechanism that protects the brain against inappropriate fluctuations in cerebral blood flow in the face of changing cerebral perfusion pressure. Temporal CA failure is associated with worse outcomes in various acute neurological diseases. An integrative approach is presently used according to the existing paradigm for the association of series of temporal CA impairments with the outcomes of patients with traumatic brain injury (TBI). ⋯ ABP, arterial blood pressureABP(t), continuous reference arterial blood pressureCA, cerebrovascular autoregulationCBF, cerebral blood flowCPP, cerebral perfusion pressureGOS, Glasgow outcome scaleGOSHD, Glasgow outcome scale after hospital dischargeGOS6M, Glasgow outcome scale at 6 months after dischargeICP, intracranial pressureICP(t), continuously monitored intracranial pressureLCAI, longest CA impairmentoptCPP, optimal cerebral perfusion pressurePRx(t), pressure reactivity indexTBI, traumatic brain injury.
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J Head Trauma Rehabil · Jul 2016
Persistent Hypogonadotropic Hypogonadism in Men After Severe Traumatic Brain Injury: Temporal Hormone Profiles and Outcome Prediction.
To (1) examine relationships between persistent hypogonadotropic hypogonadism (PHH) and long-term outcomes after severe traumatic brain injury (TBI); and (2) determine whether subacute testosterone levels can predict PHH. ⋯ PHH status in men predicts poor outcome after severe TBI, and PHH can accurately be predicted at 12 to 16 weeks.
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Nesfatin-1 is related to inflammation. Its increased circulating concentrations are associated with the severity and prognosis of subarachnoid hemorrhage. In-hospital major adverse events (IMAEs), including acute traumatic coagulopathy, progressive hemorrhagic injury and posttraumatic cerebral infarction, are correlated with mortality after traumatic brain injury (TBI). The present study was designed to investigate the changes of plasma nesfatin-1 concentrations and further assess its association with inflammation, trauma severity, in-hospital mortality and IMAEs following TBI. ⋯ Increased plasma nesfatin-1 concentrations are associated closely with inflammation, trauma severity and clinical outcomes, indicating that nesfatin-1 might be involved in inflammation and become a good prognostic biomarker following TBI.
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Traumatic brain injury (TBI) is a common injury in the U. S. Compared to the general population, military service members can be at increased risk for TBI because of the nature of their work. ⋯ Compared to service members without TBI, those who sustained a mild TBI were 3.99 times more likely to have a headache or migraine, and those with a moderate/severe TBI were 8.89 times more likely. Patients, medical providers, and military leaders can use these results to guide care after a TBI. Early identification of those at higher risk of these sequelae could improve medical management and reduce disability.
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Experimental traumatic brain injury (TBI) is known to produce an acute increase in cerebral glucose utilization, followed rapidly by a generalized cerebral metabolic depression. The current studies determined effects of single or multiple treatments with sodium pyruvate (SP; 1000mg/kg, i.p.) or ethyl pyruvate (EP; 40mg/kg, i.p.) on cerebral glucose metabolism and neuronal injury in rats with unilateral controlled cortical impact (CCI) injury. In Experiment 1 a single treatment was given immediately after CCI. ⋯ Multiple SP treatments also significantly attenuated TBI-induced reductions in cerebral glucose metabolism (in 4 brain regions) 24h post-CCI, as did multiple injections of EP (in 4 regions). The four pyruvate treatments produced significant neuroprotection in cortex and hippocampus 1day after CCI, similar to that found with a single SP or EP treatment. Thus, early administration of pyruvate compounds enhanced cerebral glucose metabolism and neuronal survival, with 40mg/kg of EP being as effective as 1000mg/kg of SP, and multiple treatments within 6h of injury did not improve upon outcomes seen following a single treatment.