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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Pediatr+Crit+Care+Med
2016 ; 17
(5
): 444-50
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Intracranial Hypertension and Cerebral Hypoperfusion in Children With Severe
Traumatic Brain Injury: Thresholds and Burden in Accidental and Abusive Insults
#MMPMID27028792
Miller Ferguson N
; Shein SL
; Kochanek PM
; Luther J
; Wisniewski SR
; Clark RS
; Tyler-Kabara EC
; Adelson PD
; Bell MJ
Pediatr Crit Care Med
2016[May]; 17
(5
): 444-50
PMID27028792
show ga
OBJECTIVES: The evidence to guide therapy in pediatric traumatic brain injury is
lacking, including insight into the intracranial pressure/cerebral perfusion
pressure thresholds in abusive head trauma. We examined intracranial
pressure/cerebral perfusion pressure thresholds and indices of intracranial
pressure and cerebral perfusion pressure burden in relationship with outcome in
severe traumatic brain injury and in accidental and abusive head trauma cohorts.
DESIGN: A prospective observational study. SETTING: PICU in a tertiary children's
hospital. PATIENTS: Children less than18 years old admitted to a PICU with severe
traumatic brain injury and who had intracranial pressure monitoring.
INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: A pediatric traumatic brain
injury database was interrogated with 85 patients (18 abusive head trauma)
enrolled. Hourly intracranial pressure and cerebral perfusion pressure (in mm Hg)
were collated and compared with various thresholds. C-statistics for intracranial
pressure and cerebral perfusion pressure data in the entire population were
determined. Intracranial hypertension and cerebral hypoperfusion indices were
formulated based on the number of hours with intracranial pressure more than
20?mm Hg and cerebral perfusion pressure less than 50?mm Hg, respectively. A
secondary analysis was performed on accidental and abusive head trauma cohorts.
All of these were compared with dichotomized 6-month Glasgow Outcome Scale
scores. The models with the number of hours with intracranial pressure more than
20?mm Hg (C = 0.641; 95% CI, 0.523-0.762) and cerebral perfusion pressure less
than 45?mm Hg (C = 0.702; 95% CI, 0.586-0.805) had the best fits to discriminate
outcome. Two factors were independently associated with a poor outcome, the
number of hours with intracranial pressure more than 20?mm Hg and abusive head
trauma (odds ratio = 5.101; 95% CI, 1.571-16.563). As the number of hours with
intracranial pressure more than 20?mm Hg increases by 1, the odds of a poor
outcome increased by 4.6% (odds ratio = 1.046; 95% CI, 1.012-1.082). Thresholds
did not differ between accidental versus abusive head trauma. The intracranial
hypertension and cerebral hypoperfusion indices were both associated with
outcomes. CONCLUSIONS: The duration of hours of intracranial pressure more than
20?mm Hg and cerebral perfusion pressure less than 45?mm Hg best discriminated
poor outcome. As the number of hours with intracranial pressure more than 20 mm
Hg increases by 1, the odds of a poor outcome increased by 4.6%. Although abusive
head trauma was strongly associated with unfavorable outcome, intracranial
pressure/cerebral perfusion pressure thresholds did not differ between accidental
and abusive head trauma.