Language-Cognitive Disorganization Following Closed Head Injury: A Conceptualization

1982 ◽  
pp. 131-151 ◽  
Author(s):  
Chris Hagen
Keyword(s):  
Head Injury ◽  
Closed Head Injury ◽  
Closed Head

The Management of Minor Closed Head Injury in Children

PEDIATRICS ◽  
2000 ◽  
Vol 106 (6) ◽  
pp. 1524-1525 ◽  
Author(s):  
C. M. A. LeBlanc; ◽  
J. B. Coombs ◽  
R. Davis
Keyword(s):  
Head Injury ◽  
Closed Head Injury ◽  
Closed Head

Management of Minor Closed Head Injury in Children

PEDIATRICS ◽  
2001 ◽  
Vol 107 (5) ◽  
pp. 1231-1231 ◽  
Author(s):  
A. J. Smally; ◽  
J. B. Coombs ◽  
R. Davis
Keyword(s):  
Head Injury ◽  
Closed Head Injury ◽  
Closed Head

scholarly journals Differential Leukocyte and Platelet Profiles in Distinct Models of Traumatic Brain Injury

Cells ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 500
Author(s):  
William Brad Hubbard ◽  
Meenakshi Banerjee ◽  
Hemendra Vekaria ◽  
Kanakanagavalli Shravani Prakhya ◽  
Smita Joshi ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Head Injury ◽  
Closed Head Injury ◽  
Diffuse Brain Injury ◽  
Blood Brain ◽  
Closed Head ◽  
Leukocyte Counts ◽  
Neutrophil Aggregation ◽  
Blood Leukocyte

Traumatic brain injury (TBI) affects over 3 million individuals every year in the U.S. There is growing appreciation that TBI can produce systemic modifications, which are in part propagated through blood–brain barrier (BBB) dysfunction and blood–brain cell interactions. As such, platelets and leukocytes contribute to mechanisms of thromboinflammation after TBI. While these mechanisms have been investigated in experimental models of contusion brain injury, less is known regarding acute alterations following mild closed head injury. To investigate the role of platelet dynamics and bioenergetics after TBI, we employed two distinct, well-established models of TBI in mice: the controlled cortical impact (CCI) model of contusion brain injury and the closed head injury (CHI) model of mild diffuse brain injury. Hematology parameters, platelet-neutrophil aggregation, and platelet respirometry were assessed acutely after injury. CCI resulted in an early drop in blood leukocyte counts, while CHI increased blood leukocyte counts early after injury. Platelet-neutrophil aggregation was altered acutely after CCI compared to sham. Furthermore, platelet bioenergetic coupling efficiency was transiently reduced at 6 h and increased at 24 h post-CCI. After CHI, oxidative phosphorylation in intact platelets was reduced at 6 h and increased at 24 h compared to sham. Taken together, these data demonstrate that brain trauma initiates alterations in platelet-leukocyte dynamics and platelet metabolism, which may be time- and injury-dependent, providing evidence that platelets carry a peripheral signature of brain injury. The unique trend of platelet bioenergetics after two distinct types of TBI suggests the potential for utilization in prognosis.

Deficiency of the chemokine receptor CXCR2 attenuates neutrophil infiltration and cortical damage following closed head injury

2010 ◽  
Vol 40 (2) ◽  
pp. 394-403 ◽  
Author(s):  
Bridgette D. Semple ◽  
Nicole Bye ◽  
Jenna M. Ziebell ◽  
M. Cristina Morganti-Kossmann
Keyword(s):  
Head Injury ◽  
Chemokine Receptor ◽  
Closed Head Injury ◽  
Neutrophil Infiltration ◽  
Cortical Damage ◽  
Closed Head ◽  
Chemokine Receptor Cxcr2

The use of moderate therapeutic hypothermia for patients with severe head injuries: a preliminary report

1993 ◽  
Vol 79 (3) ◽  
pp. 354-362 ◽  
Author(s):  
Donald W. Marion ◽  
Walter D. Obrist ◽  
Patricia M. Earlier ◽  
Louis E. Penrod ◽  
Joseph M. Darby
Keyword(s):  
Head Injury ◽  
Therapeutic Hypothermia ◽  
Closed Head Injury ◽  
Metabolic Effects ◽  
Secondary Brain Injury ◽  
Content Type ◽  
Closed Head ◽  
Hypothermia Group ◽  
Rebound Increase ◽  
Fine Print

✓ Animal research suggests that moderate therapeutic hypothermia may improve outcome after a severe head injury, but its efficacy has not been established in humans. The authors randomly assigned 40 consecutively treated patients with a severe closed head injury (Glasgow Coma Scale score 3 to 7) to either a hypothermia or a normothermia group. Using cooling blankets and cold saline gastric lavage, patients in the hypothermia group were cooled to 32° to 33°C (brain temperature) within a mean of 10 hours after injury, maintained at that temperature for 24 hours, and rewarmed to 37° to 38°C over 12 hours. Patients in the normothermia group were maintained at 37° to 38°C during this time. Deep-brain temperatures were monitored directly and used for all temperature determinations. Intracranial pressure (ICP), cerebral blood flow (CBF), and cerebral metabolic rate for oxygen (CMRO2) were measured serially for all patients. Hypothermia significantly reduced ICP (40%) and CBF (26%) during the cooling period, and neither parameter showed a significant rebound increase after patients were rewarmed. Compared to the normothermia group, the mean CMRO2 in the hypothermia group was lower during cooling and higher 5 days after injury. Three months after injury, 12 of the 20 patients in the hypothermia group had moderate, mild, or no disabilities; eight of the 20 patients in the normothermia group had improved to the same degree. Both groups had a similar incidence of systemic complications, including cardiac arrhythmias, coagulopathies, and pulmonary complications. It is concluded that therapeutic moderate hypothermia is safe and has sustained favorable effects on acute derangements of cerebral physiology and metabolism caused by severe closed head injury. The trend toward better outcome with hypothermia may indicate that its beneficial physiological and metabolic effects limit secondary brain injury.

Return of Memory and Sleep Efficiency Following Moderate to Severe Closed Head Injury

2008 ◽  
Vol 23 (4) ◽  
pp. 320-326 ◽  
Author(s):  
Michael J. Makley ◽  
Lisa Johnson-Greene ◽  
Patrick M. Tarwater ◽  
Andrew J. Kreuz ◽  
J. Spiro ◽  
...  
Keyword(s):  
Brain Injury ◽  
Head Injury ◽  
Motor Vehicle ◽  
Motor Vehicle Accident ◽  
Closed Head Injury ◽  
Recovery Phase ◽  
Sleep Efficiency ◽  
Rehabilitation Unit ◽  
Closed Head ◽  
Unit Increase

Objective. Sleep disturbance is common in the subacute recovery phase following brain injury. A previous study from the authors' group found 68% of patients with closed head injury (CHI) had disrupted sleep on a rehabilitation unit. In the present study, the authors investigated whether improvement in sleep efficiency correlates with duration of posttraumatic amnesia (PTA) after CHI. Methods. Fourteen CHI patients were enrolled and followed prospectively. Mechanism of injury included motor vehicle accident, fall, and blunt assault. An actigraph was placed on each subject's wrist within 72 hours of admission to the rehabilitation unit and recorded data for the duration of their stay. A minimum of 7 days of continuous actigraphy data was obtained on all subjects. PTA was measured daily using the Orientation Log (O-LOG). Results. Seventy-eight percent of subjects had mean week-1 sleep efficiency scores of ≤63%. Patients admitted having already cleared PTA had significantly better week-1 sleep efficiency scores than those with ongoing amnesia ( P = .032). For those patients admitted with ongoing PTA, each 10-unit increase in sleep efficiency score correlated with 1 unit increase in O-LOG score ( P = .056). Conclusions. Disrupted sleep is common in the postacute stage following CHI. Improved sleep efficiency correlates with resolution of PTA. Decreased sleep efficiency may negatively affect memory return after traumatic brain injury. Actigraphy is uniquely suited to study the sleep patterns of these patients.

Prospective memory in patients with closed head injury: A review

2011 ◽  
Vol 49 (8) ◽  
pp. 2156-2165 ◽  
Author(s):  
David Shum ◽  
Harvey Levin ◽  
Raymond C.K. Chan
Keyword(s):  
Head Injury ◽  
Prospective Memory ◽  
Closed Head Injury ◽  
Closed Head
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