Use of the King's Outcome Scale for Childhood Head Injury in the evaluation of outcome in childhood traumatic brain injury

Predictive validity of the Westmead Post-Traumatic Amnesia Scale for functional outcomes in school-aged children who sustained traumatic brain injury

The Westmead Post-Traumatic Amnesia Scale (WPTAS) is routinely used for the assessment of post-traumatic amnesia (PTA) in children who sustained traumatic brain injury (TBI). Yet, the WPTAS' predictive validity for functional outcomes is largely unknown. We aimed to determine whether PTA duration measured by the WPTAS (i) differentially predicts functional outcomes and (ii) contributes to predictions of outcomes beyond the Glasgow Coma Scale (GCS) in children who sustained TBI. Participants were children and adolescents with moderate-to-severe TBI (n = 55) aged 8-15 years. PTA duration was assessed with the WPTAS. Outcomes at the first outpatient follow-up were scored on the Kings Outcome Scale for Childhood Head Injury (KOSCHI) and the TBI Outcome Domain Scale-Extended (ODS-E). Longer PTA and lower GCS were both significantly correlated with worse (i) global outcomes: presence of disability on the KOSCHI and lower score on the ODS-E and (ii) select specific outcomes on the ODS-E: mobility, mood and cognition. PTA duration predicted cognitive outcome on the ODS-E independently, beyond GCS. Together, PTA duration and GCS, predicted the global KOSCHI outcome, as well as the ODS-E mobility and mood outcomes. Neither GCS nor PTA duration correlated with the ODS-E communication, impulsivity/disinhibition, headache, fatigue, sensory impairments or somatic complaints outcomes. PTA duration measured by the WPTAS is a significant unique predictor of functional cognitive outcomes in children who sustained moderate-to-severe TBI, and in combination with the GCS, a significant predictor of global, and several specific functional outcomes.

A 12-Year Audit of Neurological Outcomes Associated with Core Body Temperature >37.5°C in Children with Severe Traumatic Brain Injury

Hyperthermia exposure is associated with poor neurological outcomes in patients with severe traumatic brain injury (TBI). Our aim was to describe fever in children with severe TBI admitted to a pediatric intensive care unit (PICU) for at least 72 hours and to evaluate associations between fever using a novel approach to describe thermal exposure and neurobehavioral outcomes. The cohort included children from birth to 17 years of age admitted to the PICU between 2000 and 2012 for at least 72 hours who had severe TBI with intracranial pressure monitoring. Patients with non-accidental TBI or pre-existing developmental delays were excluded. Hyperthermia was defined as a core temperature >37.5°C. Hourly temperature measurements were used to calculate the area under the curve (AUC) using the linear trapezoidal rule. Each participant was followed up at the Brain Injury Clinic 6 and 18 months postinjury. Neurobehavioral outcome scores were analyzed against AUC using standard statistical methods. Ninety-eight patients admitted with severe TBI met the study inclusion criteria. Hyperthermia/fever was common (89.7%), and patients remained hyperthermic for a median of 9.4 hours. However, no statistically significant association was found between AUC and abnormal neurological outcomes. The follow-up rates were good at 6 (86.7%) and 18 months (83.7%). The neurological deficit improved with time, with "favorable outcomes" increasing from 72% to 94% at the respective follow-up months. Our study used a novel method to describe patients' fever, providing a different indicator of thermal exposure than that previously reported. In addition, the AUC was well correlated with the maximum temperature recorded and the proportion of time >37.5°C, indicating that it is a good surrogate for thermal exposure. Interestingly, the neurological disabilities of the patients improved over time.

Overall Health Following Pediatric Critical Illness: A Scoping Review of Instruments and Methodology

OBJECTIVES

Families identify overall health as a key outcome after pediatric critical illness. We conducted a planned secondary analysis of a scoping review to determine the methods, populations, and instruments used to evaluate overall health outcomes for both children and their families after critical illness.

DESIGN

Planned Secondary Analysis of a Scoping Review.

SETTING

We searched PubMed, EMBASE, PsycINFO, Cumulative Index of Nursing and Allied Health Literature, and the Cochrane Controlled Trials Registry databases from 1970 to 2017 to identify studies which measured postdischarge overall health of children who survived critical illness and their families.

SUBJECTS

Articles reporting overall health outcomes after pediatric critical illness.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

Among the 407 articles which measured outcomes following pediatric critical illness, 161 (40%) measured overall health. The overall health domain was most commonly measured in traumatic brain injury (44%) and the general PICU populations (16%). In total, there were 39 unique measures used to evaluate overall health. Across all subjects, seven measures accounted for 89% of instruments, with the Glasgow Outcome Scale (47%) and the Pediatric Overall Performance Category (17%) being most commonly used. Excluding studies targeting survivors of traumatic brain injury, Pediatric Overall Performance Category, Glasgow Outcome Scale, and the General Health Questionnaire were the most commonly used instruments. Patients were followed for a median 10.5 months (interquartile range, 4.5-21 mo).

CONCLUSIONS

Overall health was commonly assessed post-PICU discharge, especially in the traumatic brain injury population, using a heterogenous array of measures. Evaluation and consensus are imperative to identify the most appropriate method to measure overall health with the goal of improving care efficacy and facilitating recovery across populations of critically ill children.

Understanding the Five-Year Outcomes of Abusive Head Trauma in Children: A Retrospective Cohort Study

Understanding the long-term medical and developmental outcomes for children who survive abusive head trauma (AHT) is important to ensure necessary supports and services are available. This study examined the retrospective global and specific medical and developmental outcomes of 55 children with AHT who were treated at The Children's Hospital at Westmead. Global outcomes were assessed using the Kings Outcome Scale of Childhood Head Injury (KOSCHI). Five years post-injury, one child had died and two had made a complete recovery. Forty-five children (81.8%) had a moderate or severe disability, an increase from 64.5% at acute discharge. At follow-up, the main impairments were behavioral problems (53%), vision impairment (44%), fine motor difficulties (26%), gross motor problems (26%), communication problems (24%) and 16% had seizures. A Spearman's Rank correlation revealed that only 41% of variance in KOSCHI scores five years post-injury could be accounted for KOSCHI scores at the time of acute discharge (rs(55) = 0.638, p < .001), and many children's presentation was worse at follow-up. Therefore, all children presenting with AHT need long term follow up regardless of early indications of good recovery.

Seizures and Outcome One Year After Neonatal and Childhood Cerebral Sinovenous Thrombosis

BACKGROUND

Pediatric cerebral sinovenous thrombosis is a treatable cause of brain injury, acute symptomatic seizures, and remote epilepsy. Our objective was to prospectively study epilepsy and outcomes in neonates and children one year after cerebral sinovenous thrombosis diagnosis.

METHODS

Patients with cerebral sinovenous thrombosis were enrolled prospectively from 21 international sites through the Seizures in Pediatric Stroke Study. Clinical data, including acute symptomatic seizures and cerebral sinovenous thrombosis risk factors, were collected at diagnosis. A neuroradiologist who was unaware of the diagnosis reviewed acute imaging. At one year, outcomes including seizure recurrence, epilepsy diagnosis, antiepileptic drug use, and modified Engel score were collected. Outcomes were assessed using the modified Rankin score and the King's Outcome Scale for Childhood Head Injury.

RESULTS

Twenty-four participants with cerebral sinovenous thrombosis were enrolled (67% male, 21% neonates). Headache was the most common presenting symptom in non-neonates (47%, nine of 19). Nine (37.5%) presented with acute symptomatic seizures. Six (25%; 95% confidence interval, 10% to 47%) developed epilepsy by one-year follow-up. No clinical predictors associated with epilepsy were identified. King's Outcome Scale for Childhood Head Injury and modified Rankin scores at one year were favorable in 71%. Half of the patients who developed epilepsy (three of six) did not have infarcts, hemorrhage, or seizures identified during the acute hospitalization.

CONCLUSION

Our study provides a prospective estimate that epilepsy occurs in approximately one-quarter of patients by one year after diagnosis of cerebral sinovenous thrombosis. Later epilepsy can develop in the absence of acute seizures or parenchymal injury associated with the acute presentation.

Short term outcomes of children with abusive head trauma two years post injury: A retrospective study

PURPOSE

Abusive head trauma (AHT) can have debilitating sequelae for children who survive. A retrospective medical record review was used to describe short-term developmental outcomes of children with AHT and identify predictors of poorer outcomes.

METHOD

Children with AHT who received follow up by the hospital's rehabilitation department for 12 to 24 months post-injury were included in this review. Data for 85 children were collected on hearing, vision, gross motor, fine motor, speech and language, cognition, play, adaptive functioning, behaviour and personal-social skills.

RESULTS

Global assessment found 42% of children had a good recovery, 34% had a moderate disability and 24% had a severe disability. For whom there was data, more than half had abnormal cognition, behaviour and personal-social skills, whilst more than a third had abnormal speech and language, neurological signs on last assessment, vision, play skills, and gross and fine motor skills. Factors that predicted poorer prognosis across all developmental domains included paediatric intensive care unit admission, longer length of hospital stay, breathing difficulty and lower Glasgow Coma Scale on presentation.

CONCLUSION

This study highlights the substantial number of children who have abnormal development in the short-term post-AHT and assists in identifying those who require extensive long-term follow up.

Intracranial pressure-based barbiturate coma treatment in children with refractory intracranial hypertension due to traumatic brain injury

OBJECTIVE

Refractory intracranial pressure (ICP) hypertension following traumatic brain injury (TBI) is a severe condition that requires potentially harmful treatment strategies such as barbiturate coma. However, the use of barbiturates may be restricted due to concerns about inducing multiorgan system complications related to the therapy. The purpose of this study was to evaluate the outcome and occurrence of treatment-related complications to barbiturate coma treatment in children with refractory intracranial hypertension (RICH) due to TBI in a modern multimodality neurointensive care unit (NICU).

METHODS

The authors conducted a retrospective cohort study of 21 children ≤ 16 years old who were treated in their NICU between 2005 and 2015 with barbiturate coma for RICH following TBI. Demographic and clinical data were acquired from patient records and physiological data from digital monitoring system files.

RESULTS

The median age of these 21 children was 14 years (range 2-16 years) and at admission the median Glasgow Coma Scale score was 7 (range 4-8). Barbiturate coma treatment was added due to RICH at a median of 46 hours from trauma and had a median duration of 107 hours. The onset of barbiturate coma resulted in lower ICP values, lower pulse amplitudes on the ICP curve, and decreased amount of A-waves. No major disturbances in blood gases, liver and kidney function, or secondary insults were observed during this period. Outcome 1 year later revealed a median Glasgow Outcome Scale score of 5 (good recovery), however on the King's Outcome Scale for Childhood Head Injury, the median was 4a (moderate disability).

CONCLUSIONS

The results of this study indicate that barbiturate coma, when used in a modern NICU, is an effective means of lowering ICP without causing concomitant severe side effects in children with RICH and was compatible with good long-term outcome.

Preliminary validation study of the Sydney Post-Traumatic Amnesia Scale (SYPTAS) in children with traumatic brain injury aged 4 to 7 years

The aim of this study was to assess the validity (developmental, concurrent, and predictive) of the Sydney Post-Traumatic Amnesia Scale (SYPTAS) for assessment of post-traumatic amnesia (PTA) in 4 to 7 year old children with traumatic brain injury (TBI). The design of this study is a retrospective cohort study. The SYPTAS was administered to 35 children (26 boys) aged 4.0 to 7.8 years who were consecutively admitted to a children's hospital with mild (n = 26), moderate (n = 3), or severe (n = 7) TBI. Concurrent validity of the SYPTAS was assessed against the Glasgow Coma Scale Scores (GCS). Predictive validity of the SYPTAS for functional outcomes was evaluated against the King's Outcome Scale for Childhood Head Injury (KOSCHI) at discharge and outpatient follow-ups. The length of PTA, measured by the SYPTAS, was invariant of children's chronological age, confirming the scale's developmental validity. Longer PTA was associated with lower GCS, endorsing concurrent validity of PTA duration measured by the SYPTAS, as a clinical indicator of TBI severity. PTA duration measured by the SYPTAS was a significant predictor of functional outcomes on the KOSCHI at discharge and follow-ups. This study provides evidence that the SYPTAS has good developmental, concurrent and predictive validity for assessment of PTA in children aged 4 to 7 years. PTA duration assessed by the SYPTAS is a clinical indicator of TBI severity and can aid rehabilitation planning post TBI.

Base deficit correlates with mortality in pediatric abusive head trauma

BACKGROUND/PURPOSE

Children suffering from abusive head trauma (AHT) have worse outcomes compared to non-AHT, but the reasons for this are unclear. We hypothesized that delayed medical care associated with AHT causes prolonged pre-hospital hypotension and hypoxia as measured by admission base deficit (BD), and that this would correlate with outcome.

METHODS

We performed a 10-year retrospective chart review of children admitted for AHT at two academic level-I trauma centers. Statistics were performed using Student's t test, chi-square analysis, and multivariate logistic regression, and considered significant at p < 0.05.

RESULTS

Four-hundred twelve children with AHT were identified, and admission BD was drawn for 148/412 (36%) children, including 104 survivors and 44 non-survivors. Non-survivors had significantly higher BD compared to survivors (12.6 ± 1.6 versus 5.3 ± 0.6, p < 0.001). Non-survivors were more likely to be intubated pre-hospital and get cardiopulmonary resuscitation (CPR) (p < 0.001). Mortality increased with rising BD, according to CPR status. There was no difference in patterns of brain injury between survivors and non-survivors (p > 0.05).

CONCLUSIONS

BD correlates with mortality in children suffering severe AHT. Non-survivors are also more likely to be intubated pre-hospital and require CPR, with no difference in pattern of brain injury, suggesting that secondary injury is a major determinant of outcome in severe AHT.