Articles: traumatic-brain-injuries.
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Air medical journal · Sep 2016
The Effect of Prehospital Intubation on Treatment Times in Patients With Suspected Traumatic Brain Injury.
This study examines whether, in patients requiring intubation with moderate to severe traumatic brain injury (TBI), prehospital intubation compared with emergency department intubation leads to a reduction in treatment times and time to a computed tomographic (CT) scan. ⋯ Patients intubated in the prehospital setting spend a longer time at the scene but a shorter amount of time in the emergency department before brain imaging. Prehospital intubation may lead to earlier control of airway and ventilation. The minority of intubated TBI patients required urgent neurosurgical intervention. Overall prehospital intubation shows no significant survival advantage for the patients when compared with emergency department intubation.
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Traumatic brain injury (TBI) is defined as damage to the brain resulting from an external force. TBI, a global leading cause of death and disability, is associated with serious social, economic, and health problems. ⋯ Functional nuclear medicine imaging and neurophysiological parameters can be used to characterize brain damage, as the former provides direct visualization of brain function, even in the absence of overt behavioral manifestations or anatomical findings. We report the case of a 30-year-old Hispanic male veteran who, after 2 traumatic brain injury events, developed cognitive and neuropsychological problems with no clear etiology in the presence of negative computed tomography (CT) findings.
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Microvascular research · Sep 2016
Comparative StudySanguinate's effect on pial arterioles in healthy rats and cerebral oxygen tension after controlled cortical impact.
Sanguinate, a polyethylene glycol-conjugated carboxyhemoglobin, was investigated for cerebral vasoactivity in healthy male Sprague-Dawley rats (Study 1) and for its ability to increase brain tissue oxygen pressure (PbtO2) after controlled cortical impact (CCI) - traumatic brain injury (TBI) (Study 2). In both studies ketamine-acepromazine anesthetized rats were ventilated with 40% O2. In Study 1, a cranial window was used to measure the diameters of medium - (50-100μm) and small-sized (<50μm) pial arterioles before and after four serial infusions of Sanguinate (8mL/kg/h, cumulative 16mL/kg IV), volume-matched Hextend, or normal saline. ⋯ Results showed: 1) in healthy rats, percentage changes in pial arteriole diameter were the same among the groups, 2) in TBI rats, PbtO2 decreased from 36.5±3.9mmHg to 19.8±3.0mmHg at T15 in both groups after TBI and did not recover in either group for the rest of the study, and 3) MAP increased 16±4mmHg and 36±5mmHg after Sanguinate in healthy and TBI rats, respectively, while MAP was unchanged in control groups. In conclusion, Sanguinate did not cause vasoconstriction in the cerebral pial arterioles of healthy rats but it also did not acutely increase PbtO2 when administered after TBI. Sanguinate was associated with an increase in MAP in both studies.
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The aim of the study was to investigate clinical features of headache associated with minor versus moderate to severe traumatic brain injury and of posttraumatic versus primary headache in children and adolescents. Study group included 74 patients after mild (n = 60) or moderate to severe (n = 14) traumatic brain injury identified by retrospective review of the computerized files of a tertiary pediatric headache clinic. Forty patients (54%) had migraine-like headache, 23 (31.1%) tension-like headache, and 11 (14.9%) nonspecified headache. ⋯ In comparison with 174 control patients, the study group had a significantly lower proportion of patients with migraine-like headache and a higher proportion of male patients and patients with allodynia. There was no statistically significant correlation of any of the clinical parameters with the type or severity of the posttraumatic headache or rate of allodynia. The high rate of allodynia in the study group may indicate a central sensitization in posttraumatic headache.
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Guidelines suggest that Traumatic Brain Injury (TBI) related hospitalizations are best treated at Level I or II trauma centers because of continuous neurosurgical care in these settings. This population-based study examines TBI hospitalization treatment paths by age groups. ⋯ Utilization of trauma center resources for hospitalized TBIs may be low considering the established lower mortality rate associated with treatment at Level I or II trauma centers. The higher transfer rate for older adults may suggest rapid decline amid an unrecognized initial need for a trauma center care. A better understanding of hospital destination decision making is needed for patients with TBI.