A meta-analysis of variables that predict significant intracranial injury in minor head trauma

Clinical characteristics associated with pediatric traumatic intracranial hemorrhage

PURPOSE

Traumatic brain injury (TBI) can cause significant morbidity and mortality in the pediatric population. Brain CT is the mainstay in the diagnosis of intracranial hemorrhage (ICH). The aim of this study was to explore the clinical characteristics that can predict ICH on brain CT in pediatric TBI patients, to assist physicians in deciding on the use of brain CT.

METHODS

A total of 475 pediatric TBI patients who underwent brain CT within 24 h after injury from January 2012 to December 2021 in the level 1 trauma center in Thailand were included in this cross-sectional study. Clinical data and brain CT findings were collected. Logistic regression analysis was applied to evaluate clinical characteristics that could predict ICH on brain CT in pediatric TBI patients. A p value was less than 0.05 being indicated that the difference is statistically significant. R software version 3.6.1 was used to statistical analysis.

RESULTS

The included cases have a median (Q1, Q3) age of 7.7 (3.5, 12.6) years. ICH was found in 98 (20.6%) pediatric patients based on brain CT findings. On multivariable analysis, high blunt energy injury (odds ratio (OR) = 2.79, 95% CI 1.27 - 6.11, p = 0.010), motor vehicle accidents (OR = 2.04, 95% CI: 1.14 - 3.67, p = 0.017), Glasgow coma scale score <13 (OR = 4.28, 95% CI: 1.87 - 9.78, p < 0.001), palpable skull fractures (OR = 7.30, 95% CI: 1.44 - 37.04, p = 0.016), signs of basilar skull fracture (OR = 6.10, 95% CI: 2.16 - 17.24, p < 0.001), and vomiting ≥ 3 times (OR = 2.60, 95% CI: 1.17 - 5.77, p = 0.022) were statistically significant predictive factors for ICH in pediatric TBI patients.

CONCLUSION

These factors might aid clinicians in making an appropriate decision regarding the use of brain CT in pediatric TBI cases.

Palpable signs of skull fractures on physical examination and depressed skull fractures or traumatic brain injuries on CT in children

To assess the actual presence of underlying depressed skull fractures and traumatic brain injuries (TBI) on computed tomography (CT) in children with and without palpable skull fractures on physical examination following minor head trauma. This was a secondary analysis of a prospective, observational multicenter study enrolling 42,412 children < 18 years old with Glasgow Coma Scale scores ≥ 14 following blunt head trauma. A palpable skull fracture was defined per the treating clinician documentation on the case report form. Skull fractures and TBIs were determined on CT scan by site radiologists. Palpable skull fractures were reported in 368/10,698 (3.4%) children < 2 years old, and in 676/31,613 (2.1%) of older children. Depressed skull fractures on CT were observed in 56/273 (20.5%) of younger children with palpable skull fractures and in 34/3047 (1.1%) of those without (rate difference 19.4%; 95%CI 14.6-24.2%), and in 30/486 (6.2%) vs 63/11,130 (0.6%) of older children (rate difference 5.6%; 95%CI 3.5-7.8%). TBIs on CT were found in 73/273 (26.7%) and 189/3047 (6.2%) of younger children with and without palpable skull fractures (rate difference 20.5%; 95%CI 15.2-25.9), and in 61/486 (12.6%) vs 424/11,130 (3.8%) of older children (rate difference 8.7%; 95%CI 6.1-12.0).Conclusions: Although depressed skull fractures and TBIs on CT are more common in children with palpable fractures than those without, most of these children do not have underlying depressed fractures. The discriminatory ability of the scalp examination could be enhanced by direct bedside visualization of the skull, such as through ultrasound.

Risk factors for traumatic intracranial hemorrhage in mild traumatic brain injury patients at the emergency department: a systematic review and meta-analysis

BACKGROUND

Mild traumatic brain injury (mTBI), i.e. a TBI with an admission Glasgow Coma Scale (GCS) of 13-15, is a common cause of emergency department visits. Only a small fraction of these patients will develop a traumatic intracranial hemorrhage (tICH) with an even smaller subgroup suffering from severe outcomes. Limitations in existing management guidelines lead to overuse of computed tomography (CT) for emergency department (ED) diagnosis of tICH which may result in patient harm and higher healthcare costs.

OBJECTIVE

To perform a systematic review and meta-analysis to characterize known and potential novel risk factors that impact the risk of tICH in patients with mTBI to provide a foundation for improving existing ED guidelines.

METHODS

The literature was searched using MEDLINE, EMBASE and Web of Science databases. Reference lists of major literature was cross-checked. The outcome variable was tICH on CT. Odds ratios (OR) were pooled for independent risk factors.

RESULTS

After completion of screening, 17 papers were selected for inclusion, with a pooled patient population of 26,040 where 2,054 cases of tICH were verified through CT (7.9%). Signs of a skull base fracture (OR 11.71, 95% CI 5.51-24.86), GCS < 15 (OR 4.69, 95% CI 2.76-7.98), loss of consciousness (OR 2.57, 95% CI 1.83-3.61), post-traumatic amnesia (OR 2.13, 95% CI 1.27-3.57), post-traumatic vomiting (OR 2.04, 95% CI 1.11-3.76), antiplatelet therapy (OR 1.54, 95% CI 1.10-2.15) and male sex (OR 1.28, 95% CI 1.11-1.49) were determined in the data synthesis to be statistically significant predictors of tICH.

CONCLUSION

Our meta-analysis provides additional context to predictors associated with high and low risk for tICH in mTBI. In contrast to signs of a skull base fracture and reduction in GCS, some elements used in ED guidelines such as anticoagulant use, headache and intoxication were not predictive of tICH. Even though there were multiple sources of heterogeneity across studies, these findings suggest that there is potential for improvement over existing guidelines as well as a the need for better prospective trials with consideration for common data elements in this area. PROSPERO registration number CRD42023392495.

The Role of Ultrasound in Pediatric Skull Fractures: Determination of Fracture and Optic Nerve Sheath Diameter Measurements

BACKGROUND

The aim of the present study was to determine the accuracy of point-of-care ultrasound (POCUS) for detecting skull fractures and to evaluate sonographic measurements of optic nerve sheath diameter (ONSD) and ONSD/eyeball vertical diameter (EVD) ratios in children with head trauma.

METHODS

Children who presented with local signs of head trauma and underwent cranial computed tomography (CT) were enrolled. The suspected area was examined by POCUS to identify a skull fracture, and then the ONSD at 3 mm posterior to the globe and the EVD were measured. Ratios of ONSD measurement at 3 mm/EVD were reported. All ONSD measurements and ratios were calculated from cranial CT images.

RESULTS

There were 112 children enrolled in the study. The sensitivity and specificity of POCUS for skull fractures was 93.7% (95% confidence interval [CI], 82.8-98.6) and 96.8% (95% CI, 89.1-99.6), whereas the positive predictive value was 95.7% (95% CI, 85.1-98.8), and the negative predictive value was 95.3% (95% CI, 87.3-98.4). There was high agreement between POCUS and CT for identifying skull fractures (κ, 0.90 [±0.04]). In the group without elevated intracranial pressure findings on CT, patients with space-occupying lesions (SOLs) had higher sonographic ONSD measurements and ratios (P < 0.001) compared with cases without SOLs.

CONCLUSIONS

When used with clinical decision rules to minimize the risk for clinically important traumatic brain injury, POCUS seems to be a promising tool to detect skull fractures and calculate ONSD measurements and rates to predict the risk for SOLs and perform further risk stratification of children with minor head trauma.

C-Reactive Protein and D-dimer as Prognostic Markers for Clinical Outcomes in Patients with Mild Traumatic Brain Injury: A Cross-Sectional Study

Objective

To investigate the use of prognostic markers such as C-reactive protein (CRP) and D-dimer for clinical outcomes in patients with mild traumatic brain injury (TBI).

Methods

This cross-sectional study was conducted on patients with mild head trauma who were admitted to the Emergency Department of Imam Khomeini Hospital (Sari, Iran). Data were collected from 2018 to 2019. Age, sex, the time of injury hospitalization, length of hospitalization, length of unconsciousness, blood pressure, heart rate, respiratory rate, and concomitant symptoms were all recorded using a pre-designed checklist. The patient's Glasgow Coma Scale (GCS), CRP, and D-dimer were also measured. Moreover, all patients underwent CT scan.

Results

This study included 74 patients with TBI. The mean age of the participants was 36.92±3.54. The mean CRP and D-dimer values were 5.69±0.77 and 0.58±0.11 in these patients, respectively. At the cut-off point of 11.50 for CRP, the sensitivity and specificity to detect the pathological lesions in CT scan were 75% and 95.50%, respectively (p<0.001). Additionally, with a D-dimer cut-off point of 0.90, the sensitivity and specificity for diagnosing pathological lesions in CT scan were 100% and 98.50%, respectively (p<0.001).

Conclusion

In general, the CRP and D-dimer levels of patients with mild TBI (GCS≥13) can be assessed to protect against CT-induced radiation exposure and subsequent disorders; if they do not exhibit clinical signs to increase the risk of adverse brain damage, such as reduced level of consciousness, drowsiness, and prolonged periods of unconsciousness.

Evidence base for point-of-care ultrasound (POCUS) for diagnosis of skull fractures in children: a systematic review and meta-analysis

BACKGROUND

Blunt head trauma is a common presentation to emergency departments (EDs). Identifying skull fractures in children is important as they are known factor of risk for traumatic brain injury (TBI). Currently, CT is the reference standard for diagnosing skull fractures and TBIs in children. Identifying skull fractures with point-of-care ultrasound (POCUS) may help risk-stratify children for TBI following blunt trauma. The purpose of this study is to evaluate the sensitivity, specificity, positive predictive value and negative predictive value of POCUS in identifying skull fractures in children.

METHODS

A systematic search was performed on 17 July 2020 in Ovid Medline, Cochrane Library, Google Scholar, Web of Science and Embase. Prospective studies reporting skull fractures diagnosed with ultrasound in children younger than 18 years due to blunt head injury were included. Studies that did not confirm the fracture with CT were excluded. The quality of studies was evaluated using the QUADAS-2 tool. Data were extracted from the eligible studies to calculate outcomes such as sensitivity and specificity; when possible overall outcomes were calculated.

RESULTS

Seven studies were included. All eligible studies included patients for whom the decision to perform a CT scan was made in advance. Overall, the included studies demonstrated low risk of bias or had minor concerns regarding risk of bias. The pooled data (n=925) demonstrated a sensitivity of 91%, specificity of 96%, positive predictive value of 88% and negative predictive value of 97%.

CONCLUSION

The included studies demonstrate minor methodological limitations. Overall, the evidence suggests that POCUS is a valid option for diagnosing skull fractures in children visiting the ED after blunt head injury.

Pediatric minor head trauma in Brazil and external validation of PECARN rules with a cost-effectiveness analysis

BACKGROUND

Pediatric minor head trauma approaches aim to ensure the absence of traumatic brain lesions, minimize ionizing radiation, and enhance cost control. We evaluated the applicability and cost-effectiveness of the Pediatric Emergency Care Applied Research Network (PECARN) rules after head trauma and rationalize the use of head computed tomography (CT) scans.

METHODS

We retrospectively divided patients <18 years old who presented at a single institution in Brazil with minor head trauma into four groups: Group I (skull X-ray only), Group II (head CT only), Group III (X-ray and CT), and Group IV (observation only). Direct costs were calculated based on examination and length of hospitalization. The PECARN rules were applied retrospectively in each patient to determine who required a CT scan, and the costs were re-calculated.

RESULTS

Of the 1328 patients, CT scans were performed in 36.4% and X-rays in 52.6%. The mean cost was USD 5.88, 34.58, 41.85, and 4.04 for Groups I-IV, respectively. After applying the PECARN rules, 77.6% of patients no longer required a CT scan, and overall costs were reduced from USD 16.71 to 7.88 (p < .001). Conclusion: The PECARN rules demonstrated a meaningful cost-effectiveness and should be applied to the Brazilian pediatric population.

Characteristics of vomiting as a predictor of intracranial injury in pediatric minor head injury

OBJECTIVES

Vomiting is common in children after minor head injury. In previous research, isolated vomiting was not a significant predictor of intracranial injury after minor head injury; however, the significance of recurrent vomiting is unclear. This study aimed to determine the value of recurrent vomiting in predicting intracranial injury after pediatric minor head injury.

METHODS

This secondary analysis of the CATCH2 prospective multicenter cohort study included participants (0-16 years) who presented to a pediatric emergency department (ED) within 24 hours of a minor head injury. ED physicians completed standardized clinical assessments. Recurrent vomiting was defined as ≥ four episodes. Intracranial injury was defined as acute intracranial injury on computed tomography scan. Predictors were examined using chi-squared tests and logistic regression models.

RESULTS

A total of 855 (21.1%) of the 4,054 CATCH2 participants had recurrent vomiting, 197 (4.9%) had intracranial injury, and 23 (0.6%) required neurosurgical intervention. Children with recurrent vomiting were significantly more likely to have intracranial injury (odds ratio [OR], 2.3; 95% confidence interval [CI], 1.7-3.1), and require neurosurgical intervention (OR, 3.5; 95% CI, 1.5-7.9). Recurrent vomiting remained a significant predictor of intracranial injury (OR, 2.8; 95% CI, 1.9-3.9) when controlling for other CATCH2 criteria. The probability of intracranial injury increased with number of vomiting episodes, especially when accompanied by other high-risk factors, including signs of a skull fracture, or irritability and Glasgow Coma Scale score < 15 at 2 hours postinjury. Timing of first vomiting episode, and age were not significant predictors.

CONCLUSIONS

Recurrent vomiting (≥ four episodes) was a significant risk factor for intracranial injury in children after minor head injury. The probability of intracranial injury increased with the number of vomiting episodes and if accompanied by other high-risk factors, such as signs of a skull fracture or altered level of consciousness.

Accuracy of Bedside Ultrasound for the Diagnosis of Skull Fractures in Children Aged 0 to 4 Years

OBJECTIVES

The aim of this study was to investigate the accuracy of bedside ultrasound (US) performed by emergency physicians for diagnosing skull fractures in children 0 to 4 years old compared with the accuracy of head computed tomography (CT). We also sought to investigate characteristics and precautions associated with US.

METHODS

This single-center prospective study involved children 0 to 4 years old who had a history of head trauma. Bedside US was performed by emergency medicine physicians, and the results were compared with CT scan interpretations provided by attending radiologists. The accuracy of US for the diagnosis of skull fractures was calculated, and the errors were reviewed.

RESULTS

A total of 87 patients were enrolled. Skull fracture was present in 13 patients (14.9%), according to CT. Bedside US had a sensitivity and specificity of 76.9% (95% confidence interval [CI], 46.0%-93.8%) and 100% (95% CI, 93.9%-100%), respectively. Overall positive predictive value was 100% (95% CI, 65.5%-100%), and negative predictive value was 96.1% (95% CI, 88.3%-99.0%). Three false-negative cases were observed.

CONCLUSIONS

Bedside US performed by emergency medicine physicians with short focused US training is a useful tool for diagnosing skull fractures in children 0 to 4 years of age. However, there were 3 false-negative cases. A meticulous examination is needed in the area adjacent to the orbital wall and skull base.

Systematic review and meta-analysis found significant risk of brain injury and neurosurgery in alert children after a post-traumatic seizure

AIM

This study aimed to determine the frequency of traumatic brain injury (TBI) on neuroimaging and the need for emergency neurosurgery in children with normal mental status following a post-traumatic seizure (PTS).

METHODS

We searched six electronic databases from inception to October 15, 2018, to identify studies including children under 18 years with head injury and a Glasgow Coma Score of 15 after an immediate PTS. Relevant non-English articles were translated to determine eligibility.

RESULTS

We performed random effect meta-analyses and assessed heterogeneity with I² . The pooled estimate of the frequency of TBI, from seven studies, was 13.0% (95% CI: 4.0-26.1; I²  = 81%). Data on the need of emergency neurosurgery were reported in four studies and the pooled estimate of its frequency was 2.3% (95% CI: 0.0-9.9; I²  = 86%). Two studies reported on children with isolated PTS without any other signs of head injury, representing 0.1% of patients in both studies, for a total of 76 children. Of these, only three had TBI and one underwent neurosurgery.

CONCLUSION

Children with immediate PTS and normal mental status frequently have TBI with a substantial need for neurosurgery. Clinicians should strongly consider neuroimaging for these children, although prolonged observation may be considered for those with isolated PTS.

Point of Care Ultrasound in Detection of Brain Hemorrhage and Skull Fracture Following Pediatric Head Trauma; a Diagnostic Accuracy Study

INTRODUCTION

Head trauma is a common reason for emergency department visits worldwide; many of which involve young children. We sought to determine if head ultrasound (US), as a portable, fast and safe modality, can guide diagnosis and treatment of children in emergency settings.

METHODS

In this cross-sectional study, brain computed tomography (CT) scan and emergency head US were performed on head trauma children who were referred to the emergency departments of Firouzgar and Besat Hospitals, Tehran, Iran, from September 2018 to May 2019. The findings of the two modalities were separately evaluated, and used to estimate the diagnostic accuracy of US.

RESULTS

538 patients with the mean age of 5.6 ± 4.9 (0-18) years were studied (54.8% male). Sensitivity and specificity of bedside US in detection of hemorrhage were 85.71% (42.13%-99.64%) and 97.99% (94.23%-99.58%) for children below the age of 2. These measures were 80.00% (51.91%-95.67%) and 97.97% (94.88%-99.44%), respectively, for those between 2 and 6 years old and 46.67% (21.27%-73.41%) and 92.90% (87.66%-96.40%), respectively, for those above the age of 6. Sensitivity and specificity were 92.31% (84.01%-97.12%) and 95.87% (93.62%-97.50%), respectively, in diagnosing skull fractures. Cohen's kappa coefficient varied greatly for different findings, ranging from 0.363 to 0.825, indicating different agreement rates for each.

CONCLUSION

Based on our findings, emergency US can play a greater role in the initial management of head trauma children, especially as a triage test.

Traumatic Brain Injury in Older Adults Presenting to the Emergency Department: Epidemiology, Outcomes and Risk Factors Predicting the Prognosis

Introduction

The continuing-to-grow number of older adults with traumatic brain injury (TBI) presenting to emergency departments (EDs) and hospitals necessitates the investigation of TBI in these patients.

Objective

The present study was conducted to investigate the epidemiology of TBI and the factors affecting intracranial lesions and patient outcomes in older adults.

Method

The present retrospective cross-sectional study was performed between March 2016 and March 2018. The study population comprised all TBI patients with a minimum age of 60 years presenting to the ED. The eligible candidates consisted of patients presenting to the ED within 24 hours of the occurrence of traumas and requiring head CT scan as part of their examination. The patients' baseline information was also recorded.

Results

A total of 306 older adult patients with a mean age of 70.61±8.63 years, of whom 67.6% were male, underwent CT scan for TBI during the study period. Falls were the major cause of head injuries, and intracranial lesions were observed in 22.9% (n=70) of the patients. Subdural hematoma (SDH) was observed as the most prevalent injury in 27.6% of the patients, 22.9% (n=16) were transferred to the operating room, and 7.5% (n=23) died. Moreover, the severity of trauma was significantly different between the two genders (P=0.029). Midline shift, SDH, subarachnoid hemorrhage (SAH) and moderate-to-severe head injuries were also significantly associated with poor outcomes (P<0.05).

Conclusion

Death from TBIs was more likely in the patients with SDH, SAH and midline shift or in those with an initial Glasgow coma scale (GCS) of below 13. These predictions are clinically relevant, and can help improve the management of older adults with TBI.

Traumatic brain injury in young children with isolated scalp haematoma

OBJECTIVE

Despite high-quality paediatric head trauma clinical prediction rules, the management of otherwise asymptomatic young children with scalp haematomas (SH) can be difficult. We determined the risk of intracranial injury when SH is the only predictor variable using definitions from the Pediatric Emergency Care Applied Research Network (PECARN) and Children's Head Injury Algorithm for the Prediction of Important Clinical Events (CHALICE) head trauma rules.

DESIGN

Planned secondary analysis of a multicentre prospective observational study.

SETTING

Ten emergency departments in Australia and New Zealand.

PATIENTS

Children <2 years with head trauma (n=5237).

INTERVENTIONS

We used the PECARN (any non-frontal haematoma) and CHALICE (>5 cm haematoma in any region of the head) rule-based definition of isolated SH in both children <1 year and <2 years.

MAIN OUTCOME MEASURES

Clinically important traumatic brain injury (ciTBI; ie, death, neurosurgery, intubation >24 hours or positive CT scan in association with hospitalisation ≥2 nights for traumatic brain injury).

RESULTS

In children <1 year with isolated SH as per PECARN rule, the risk of ciTBI was 0.0% (0/109; 95% CI 0.0% to 3.3%); in those with isolated SH as defined by the CHALICE, it was 20.0% (7/35; 95% CI 8.4% to 36.9%) with one patient requiring neurosurgery. Results for children <2 years and when using rule specific outcomes were similar.

CONCLUSIONS

In young children with SH as an isolated finding after head trauma, use of the definitions of both rules will aid clinicians in determining the level of risk of ciTBI and therefore in deciding whether to do a CT scan.

TRIAL REGISTRATION NUMBER

ACTRN12614000463673.

Traumatic brain injury in high versus low falls in young children and adolescents: a retrospective analysis

OBJECTIVE So-called low falls are gaining interest in traumatology. To date, there are no studies on low versus high falls in the pediatric population. The aim of the current analysis was to characterize the symptoms, diagnostics, and injuries associated with high versus low falls and to examine the effect of fall height on injuries and outcome in the context of current guideline-based recommendations. METHODS After obtaining study approval from the local ethics committee, the authors reviewed the data for patients ages 5-17 years who had been consecutively treated at either hospital associated with the University Medical Center Hamburg in the period from January 2009 to August 2014 for diagnoses including traumatic brain injury (TBI). Retrospective analysis of the electronic patient charts was performed to obtain data on demographics; accident mechanism; initial neurological status with respect to consciousness, symptoms, and Glasgow Coma Scale score; radiological studies; diagnoses; length of stay; all intracranial procedures; and Glasgow Outcome Scale (GOS) score. RESULTS Sixty-five fall-related TBIs among 380 patients were identified; 26 patients fell from a height of 3 m or more and 28 fell from a height under 3 m (height undocumented in 11 cases). Patients who fell from ≥ 3 m were 22 times more likely than those who fell from < 3 m to undergo spiral CT studies in the emergency room (p = 0.05). In addition, there was a 7.4 times greater chance of undergoing cranial CT (p = 0.02). There were significantly more noncerebral injuries requiring surgery in patients who fell from ≥ 3 m versus those who fell from < 3 m (p = 0.007). There was no difference in the frequency of neurosurgical procedures performed between low and high groups. Follow-up ranged from 0 to 92 months (mean 12.5 months, median 0 months). There was no significant difference in good (GOS score 4-5) and poor (GOS score 1-3) outcomes between high and low falls (p = 0.208). CONCLUSIONS Low falls can be associated with intracranial hemorrhages requiring ICU monitoring and/or surgery. The authors encourage intensive monitoring and CT scans based on clinical presentation, not on fall height.

Point-of-Care Ultrasound for the Diagnosis of Skull Fractures in Children Younger Than Two Years of Age

OBJECTIVES

To determine the accuracy of skull point-of-care ultrasound (POCUS) for identifying fractures in children younger than 2 years of age with signs of head trauma, and the ability of POCUS to identify the type and depth of fracture depression.

STUDY DESIGN

This was a multicenter, prospective, observational study of children younger than 2 years of age with nontrivial mechanisms of injury and signs of scalp/skull trauma. Patients were enrolled if they underwent computed tomography (CT). Patients underwent clinical evaluation, in addition to a cranial POCUS in the emergency department (ED). From the POCUS examinations, we documented whether fractures were present or absent, their location, characteristics, and depth. POCUS and CT findings were compared to calculate the diagnostic accuracy.

RESULTS

We enrolled a convenience sample of 115 of 151 (76.1%) eligible patients. Of the 115 enrolled, 88 (76.5%) had skull fractures. POCUS had a sensitivity of 80 of 88 (90.9%; 95% CI 82.9-96.0) and a specificity of 23 of 27 (85.2%; 95% CI 66.3-95.8) for identifying skull fractures. Agreement between POCUS and CT to identify the type of fracture as linear, depressed, or complex was 84.4% (97 of 115) with a kappa of 0.75 (95% CI 0.70-0.84).

CONCLUSIONS

POCUS performed by emergency physicians may identify the type and depth of fractures in infants with local physical signs of head trauma with substantial accuracy. Emergency physicians should consider POCUS as an adjunct to clinical evaluation and prediction rules for traumatic brain injuries in children younger than 2 years of age.

Vomiting With Head Trauma and Risk of Traumatic Brain Injury

OBJECTIVES

To determine the prevalence of traumatic brain injuries in children who vomit after head injury and identify variables from published clinical decision rules (CDRs) that predict increased risk.

METHODS

Secondary analysis of the Australasian Paediatric Head Injury Rule Study. Vomiting characteristics were assessed and correlated with CDR predictors and the presence of clinically important traumatic brain injury (ciTBI) or traumatic brain injury on computed tomography (TBI-CT). Isolated vomiting was defined as vomiting without other CDR predictors.

RESULTS

Of the 19 920 children enrolled, 3389 (17.0%) had any vomiting, with 2446 (72.2%) >2 years of age. In 172 patients with ciTBI, 76 had vomiting (44.2%; 95% confidence interval [CI] 36.9%-51.7%), and in 285 with TBI-CT, 123 had vomiting (43.2%; 95% CI 37.5%-49.0%). With isolated vomiting, only 1 (0.3%; 95% CI 0.0%-0.9%) had ciTBI and 2 (0.6%; 95% CI 0.0%-1.4%) had TBI-CT. Predictors of increased risk of ciTBI with vomiting by using multivariate regression were as follows: signs of skull fracture (odds ratio [OR] 80.1; 95% CI 43.4-148.0), altered mental status (OR 2.4; 95% CI 1.0-5.5), headache (OR 2.3; 95% CI 1.3-4.1), and acting abnormally (OR 1.86; 95% CI 1.0-3.4). Additional features predicting TBI-CT were as follows: skull fracture (OR 112.96; 95% CI 66.76-191.14), nonaccidental injury concern (OR 6.75; 95% CI 1.54-29.69), headache (OR 2.55; 95% CI 1.52-4.27), and acting abnormally (OR 1.83; 95% CI 1.10-3.06).

CONCLUSIONS

TBI-CT and ciTBI are uncommon in children presenting with head injury with isolated vomiting, and a management strategy of observation without immediate computed tomography appears appropriate.

Italian guidelines on the assessment and management of pediatric head injury in the emergency department

OBJECTIVE

We aim to formulate evidence-based recommendations to assist physicians decision-making in the assessment and management of children younger than 16 years presenting to the emergency department (ED) following a blunt head trauma with no suspicion of non-accidental injury.

METHODS

These guidelines were commissioned by the Italian Society of Pediatric Emergency Medicine and include a systematic review and analysis of the literature published since 2005. Physicians with expertise and experience in the fields of pediatrics, pediatric emergency medicine, pediatric intensive care, neurosurgery and neuroradiology, as well as an experienced pediatric nurse and a parent representative were the components of the guidelines working group. Areas of direct interest included 1) initial assessment and stabilization in the ED, 2) diagnosis of clinically important traumatic brain injury in the ED, 3) management and disposition in the ED. The guidelines do not provide specific guidance on the identification and management of possible associated cervical spine injuries. Other exclusions are noted in the full text.

CONCLUSIONS

Recommendations to guide physicians practice when assessing children presenting to the ED following blunt head trauma are reported in both summary and extensive format in the guideline document.

Computed Tomography Profile and its Utilization in Head Injury Patients in Emergency Department: A Prospective Observational Study

Context

Based on Glasgow Coma Scale (GCS), head injury can be classified as minor (GCS 13-15), moderate (GCS 9-12), and severe (GCS 3-8). There is a lot of controversy in the use of computed tomography (CT) in head injury patients.

Aims

This study was intended to estimate the rate of CT positivity in head injury patients and to define the criteria for doing CT in head injury patients.

Settings and Design

This was a prospective observational study in the emergency department (ED) over a 12-month period. Subjects and.

Methods

Study involved all head injury patients attending ED. Risk factors studied were a loss of consciousness (LOC), vomiting, seizures, ear bleed, nosebleed, external injuries, and alcohol intoxication.

Statistical Analysis Used

Comparison of CT positivity with the patient's demographics and clinical characteristics was carried out using Chi-square.

Results

A total of 1782 patients were included in this study. Overall CT positivity was 50.9%. In minor head injury (MHI), CT positivity rate was 38%. The study showed significant association of CT positivity with five variables: LOC >5 min, vomiting, seizures, ear bleed, and nosebleed.

Conclusions

From the study, we recommend following: CT is indicated in all patients with moderate and severe head injury (GCS ≤12). Low threshold for taking CT is advisable in elderly and alcohol-intoxicated patients. In MHI, CT is indicated if any one of the following risk factors are present: LOC >5 min, history of vomiting, history of seizures, history of ear bleed, and history of nosebleed.

Advancing Concussion Assessment in Pediatrics (A-CAP): a prospective, concurrent cohort, longitudinal study of mild traumatic brain injury in children: protocol study

INTRODUCTION

Paediatric mild traumatic brain injury (mTBI) is a public health burden. Clinicians urgently need evidence-based guidance to manage mTBI, but gold standards for diagnosing and predicting the outcomes of mTBI are lacking. The objective of the Advancing Concussion Assessment in Pediatrics (A-CAP) study is to assess a broad pool of neurobiological and psychosocial markers to examine associations with postinjury outcomes in a large sample of children with either mTBI or orthopaedic injury (OI), with the goal of improving the diagnosis and prognostication of outcomes of paediatric mTBI.

METHODS AND ANALYSIS

A-CAP is a prospective, longitudinal cohort study of children aged 8.00-16.99 years with either mTBI or OI, recruited during acute emergency department (ED) visits at five sites from the Pediatric Emergency Research Canada network. Injury information is collected in the ED; follow-up assessments at 10 days and 3 and 6 months postinjury measure a variety of neurobiological and psychosocial markers, covariates/confounders and outcomes. Weekly postconcussive symptom ratings are obtained electronically. Recruitment began in September 2016 and will occur for approximately 24 months. Analyses will test the major hypotheses that neurobiological and psychosocial markers can: (1) differentiate mTBI from OI and (2) predict outcomes of mTBI. Models initially will focus within domains (eg, genes, imaging biomarkers, psychosocial markers), followed by multivariable modelling across domains. The planned sample size (700 mTBI, 300 OI) provides adequate statistical power and allows for internal cross-validation of some analyses.

ETHICS AND DISSEMINATION

The ethics boards at all participating institutions have approved the study and all participants and their parents will provide informed consent or assent. Dissemination will follow an integrated knowledge translation plan, with study findings presented at scientific conferences and in multiple manuscripts in peer-reviewed journals.

Ambulatory or inpatient management of mild TBI in children: a post-concussion analysis

BACKGROUND

Diagnosis and treatment of children with mild traumatic brain injury (mTBI) remain a challenge since initial signs and symptoms do not always indicate the severity of the trauma. Therefore, guidelines regarding the decision upon imaging methods and ambulatory or hospitalized treatment are needed. The goal of our study was to investigate if the standard that was allied from the PECARN rules and is applied in this study can ensure that patients with clinically important brain injury are recognized and leads to outcomes with a low complication rate, a high patient satisfaction and minimal post-concussion syndrome incidence.

METHODS

We enrolled 478 children with mTBI and contacted their families with a questionnaire. Out of these, 267 valid questionnaires were received. Patient records and questionnaires were analyzed yielding a number of 140 ambulatory and 127 hospitalized patients.

RESULTS

Patients with mild TBI were admitted according to the above-mentioned guidelines or sent home for observation through their parents after thorough patient examination and information. Among ambulatory patients only 13 children (9%) underwent any imaging procedure; however, none of those showed any pathological findings. Next, in 41 of 127 hospitalized patients (32.2%) an imaging study was performed and of these only 3 according to 2.4% of hospitalized patients showed pathological findings, namely a skull fracture, two of them in combination with an intracranial hemorrhage. The duration of inpatient observation was 48 h in most cases (55.3%). Moreover, a majority of all patients (72.4%) did not seek any follow-up visit and did not need any further treatment. Of all patients in the study, only 10 patients according to 3.7% developed a post-concussion syndrome. Patient satisfaction was very high in both, the ambulatory and hospitalized patient group.

CONCLUSION

This study confirms that PECARN rules as administered in this study can ensure safe decision-making regarding ambulatory or inpatient treatment.

Soft-tissue evidence of head injury in infants and young children: is CT head examination justified?

AIM

To determine whether it is justified to undertake a computed tomography (CT) examination of the head in children under 1 year of age who present with a bruise, swelling, or laceration of >5 cm following head injury in children presenting to a paediatric accident and emergency (A&E) department in the northwest of England. Further aims were to determine whether there was any justification for performing a CT head examination for children with soft-tissue injuries measuring <5 cm, or for children >1 year with evidence of soft-tissue injury, but without any other concerning feature.

MATERIALS AND METHODS

Children <3 years of age presenting with soft-tissue evidence of head injury between May 2011 and Oct 2014 and who subsequently underwent head CT were retrospectively identified from radiology requests. The CT images and clinical notes were used to identify those with skull fracture or intracranial haemorrhage and to determine whether the child was subsequently admitted or discharged from A&E.

RESULTS

Eighty-five CT head examinations met the criteria for inclusion. Of these, 45 examinations demonstrated skull fractures and four examinations identified intracranial haemorrhage. Thirty-eight requests included soft-tissue evidence of head injury as the sole reason indicated for CT head examination. Of these, 22 examinations demonstrated skull fractures and one examination identified intracranial haemorrhage.

CONCLUSION

Soft-tissue evidence of head injury as the sole reason for CT head examination appears to be justified in the present patient population. Furthermore, this study suggests that CT head examination should also be considered for children with soft-tissue injuries of <5 cm and for children aged between 1 and 3 years if identification of a skull fracture would alter the child's management.

Scalp Hematoma Characteristics Associated With Intracranial Injury in Pediatric Minor Head Injury

OBJECTIVES

Minor head trauma accounts for a significant proportion of pediatric emergency department (ED) visits. In children younger than 24 months, scalp hematomas are thought to be associated with the presence of intracranial injury (ICI). We investigated which scalp hematoma characteristics were associated with increased odds of ICI in children less than 17 years who presented to the ED following minor head injury and whether an underlying linear skull fracture may explain this relationship.

METHODS

This was a secondary analysis of 3,866 patients enrolled in the Canadian Assessment of Tomography of Childhood Head Injury (CATCH) study. Information about scalp hematoma presence (yes/no), location (frontal, temporal/parietal, occipital), and size (small and localized, large and boggy) was collected by emergency physicians using a structured data collection form. ICI was defined as the presence of an acute brain lesion on computed tomography. Logistic regression analyses were adjusted for age, sex, dangerous injury mechanism, irritability on examination, suspected open or depressed skull fracture, and clinical signs of basal skull fracture.

RESULTS

ICI was present in 159 (4.1%) patients. The presence of a scalp hematoma (n = 1,189) in any location was associated with significantly greater odds of ICI (odds ratio [OR] = 4.4, 95% confidence interval [CI] = 3.06 to 6.02), particularly for those located in temporal/parietal (OR = 6.0, 95% CI = 3.9 to 9.3) and occipital regions (OR = 5.6, 95% CI = 3.5 to 8.9). Both small and localized and large and boggy hematomas were significantly associated with ICI, although larger hematomas conferred larger odds (OR = 9.9, 95% CI = 6.3 to 15.5). Although the presence of a scalp hematoma was associated with greater odds of ICI in all age groups, odds were greatest in children aged 0 to 6 months (OR = 13.5, 95% CI = 1.5 to 119.3). Linear skull fractures were present in 156 (4.0%) patients. Of the 111 patients with scalp hematoma and ICI, 57 (51%) patients had a linear skull fracture and 54 (49%) did not. The association between scalp hematoma and ICI attenuated but remained significant after excluding patients with linear skull fracture (OR = 3.3, 95% CI = 2.1 to 5.1).

CONCLUSIONS

Large and boggy and nonfrontal scalp hematomas had the strongest association with the presence of ICI in this large pediatric cohort. Although children 0 to 6 months of age were at highest odds, the presence of a scalp hematoma also independently increased the odds of ICI in older children and adolescents. The presence of a linear skull fracture only partially explained this relation, indicating that ruling out a skull fracture beneath a hematoma does not obviate the risk of intracranial pathology.

Falls in young children with minor head injury: A prospective analysis of injury mechanisms

BACKGROUND

Fall is a common mechanism of injury (MOI) in young children and an important risk factor for traumatic brain injury (TBI). Most children who fall have a minor head injury (MHI), defined as a blunt head trauma that occurred in a patient who is conscious and responsive.

OBJECTIVE

To seek a possible association between MOI and injury severity.

METHODS

A single centre cohort study was conducted. Data were collected on patients aged 0-2 years with MHI. Clinically-significant TBI (csTBI), defined as head injury resulting in death, intubation or neurosurgery, was the primary outcome measure. Traumatic finding on CT scan (TFCT) was the secondary outcome measure.

RESULTS

Five hundred and ninety-five patients were analysed. Eight types of falls were identified: from ground-level, down stairs, from a bed, from a changing table, from furniture, from adult-hold, from a playground-device and from a stroller/baby-carriage. One patient (0.16%) had csTBI. Thirty-one (5.2%) underwent CT scans, TFCT was diagnosed in 17 (2.8%) patients; 10 (1.7%) linear skull-fractures, two (0.3%) depressed skull-fractures and five (0.8%) intracranial haemorrhages. Regression analysis did not reveal a statistically significant association between any of the MOI and the presence of TFCT.

CONCLUSIONS

The risk for csTBI was low and no association was found between MOI and injury severity.

Headache in traumatic brain injuries from blunt head trauma

OBJECTIVE

To determine the risk of traumatic brain injuries (TBIs) in children with headaches after minor blunt head trauma, particularly when the headaches occur without other findings suggestive of TBIs (ie, isolated headaches).

METHODS

This was a secondary analysis of a prospective observational study of children 2 to 18 years with minor blunt head trauma (ie, Glasgow Coma Scale scores of 14-15). Clinicians assessed the history and characteristics of headaches at the time of initial evaluation, and documented findings onto case report forms. Our outcome measures were (1) clinically important TBI (ciTBI) and (2) TBI visible on computed tomography (CT).

RESULTS

Of 27 495 eligible patients, 12 675 (46.1%) had headaches. Of the 12 567 patients who had complete data, 2462 (19.6%) had isolated headaches. ciTBIs occurred in 0 of 2462 patients (0%; 95% confidence interval [CI]: 0%-0.1%) in the isolated headache group versus 162 of 10 105 patients (1.6%; 95% CI: 1.4%-1.9%) in the nonisolated headache group (risk difference, 1.6%; 95% CI: 1.3%-1.9%). TBIs on CT occurred in 3 of 456 patients (0.7%; 95% CI: 0.1%-1.9%) in the isolated headache group versus 271 of 6089 patients (4.5%; 95% CI: 3.9%-5.0%) in the nonisolated headache group (risk difference, 3.8%; 95% CI: 2.3%-4.5%). We found no significant independent associations between the risk of ciTBI or TBI on CT with either headache severity or location.

CONCLUSIONS

ciTBIs are rare and TBIs on CT are very uncommon in children with minor blunt head trauma when headaches are their only sign or symptom.

[Compliance with the PECARN and AEP guidelines in diagnostic approach of mild head trauma in patients younger than 24 months old]

INTRODUCTION

Mild head trauma is a frequent complaint in Pediatric Emergency Departments. Several guidelines have been published in the last few years. However, significant variability can be appreciated in terms of the demand for image tests. The aim of this study is to determine the level of compliance with PECARN and AEP guidelines in the management of patients younger than 24 months old in four different hospitals.

PATIENTS AND METHODS

A multicenter retrospective study was conducted on patients presenting with mild head trauma between October 1st, 2011 and March 31st, 2013 in the Emergency Departments of four hospitals.

RESULTS

In the analysis of the results obtained, only one of the four hospitals complied with the AEP guidelines in more than 50% of the patients. The other three hospitals had a level of compliance lower than 50%. Management was more suitable according to PECARN guidelines, with 3 of the 4 hospitals having a level of compliance greater than 50%. However, the best compliance achieved by a hospital was only of 70%.

CONCLUSIONS

The study shows that the level of compliance with guidelines for management of mild head trauma in patients younger than 24 months old is low.

Nuking the radiation: minimizing radiation exposure in the evaluation of pediatric blunt trauma

PURPOSE OF REVIEW

Our objective is to highlight recent literature investigating low-radiation diagnostic strategies in the evaluation of pediatric trauma.

RECENT FINDINGS

In the area of minor head injury, research has focused on implementation of validated clinical decision rules into practice to reduce unnecessary computed tomography scans. Clinical observation may also serve as an adjunct to initial assessment and a potential substitute for computed tomography imaging. Subgroups of children with special needs or severe injury mechanisms may also be safely characterized by the clinical decision rule and spared radiation exposure. Physical examination techniques may be useful in diagnosing mandibular fractures. In addition, evidence suggests that plain radiography for evaluation of blunt thoracic trauma may be sufficient in many cases, and computed tomography could be reserved for those with abnormal radiographs, high-risk mechanisms, or abnormal physical findings. Clinical decision rules are able to predict intra-abdominal injury with high sensitivity. Data suggest that skeletal surveys may be modified to limit radiation exposure in the case of suspected nonaccidental trauma.

SUMMARY

More research is needed in development of pediatric-specific clinical decision rules and risk stratification and in testing low-radiation diagnostic modalities in the pediatric trauma population.

Indications of brain computed tomography scan in children younger than 3 years of age with minor head trauma

Objective. To investigate the indications to receive brain computed tomography (CT) scan and to define the pathological findings in children younger than three years of age with minor head trauma in emergency departments. Methods. In this study, hospital case notes of 1350 children attending the emergency department of Bitlis State Hospital between January 2011 and June 2013 were retrospectively reviewed. 508 children under 3 years of age with minor head trauma were included in this study. We also asked 37 physicians about the indications for requiring CT in these children. Results. This study included 508 children, 233 (45,9%) of whom were female and 275 were male. In 476 (93,7%) children, the brain CT was completely normal. 89,2% of physicians asked in the emergency department during that time interval reported that they requested CT scan to protect themselves against malpractice litigation. Conclusion. In infants and children with minor head trauma, most CT scans were unnecessary and the fear of malpractice litigation of physicians was the most common reason for requesting a CT.

Glasgow Coma Scale and outcomes after structural traumatic head injury in early childhood

OBJECTIVE

To assess the association of the Glasgow Coma Scale (GCS) with radiological evidence of head injury (the Abbreviated Injury Scale for the head region, AIS-HR) in young children hospitalized with traumatic head injury (THI), and the predictive value of GCS and AIS-HR scores for long-term impairment.

METHODS

Our study involved a 10-year retrospective review of a database encompassing all patients admitted to Starship Children's Hospital (Auckland, New Zealand, 2000-2010) with THI.

RESULTS

We studied 619 children aged <5 years at the time of THI, with long-term outcome data available for 161 subjects. Both GCS and AIS-HR scores were predictive of length of intensive care unit and hospital stay (all p<0.001). GCS was correlated with AIS-HR (ρ=-0.46; p<0.001), although mild GCS scores (13-15) commonly under-estimated the severity of radiological injury: 42% of children with mild GCS scores had serious-critical THI (AIS-HR 3-5). Increasingly severe GCS or AIS-HR scores were both associated with a greater likelihood of long-term impairment (neurological disability, residual problems, and educational support). However, long-term impairment was also relatively common in children with mild GCS scores paired with structural THI more severe than a simple linear skull fracture.

CONCLUSION

Severe GCS scores will identify most cases of severe radiological injury in early childhood, and are good predictors of poor long-term outcome. However, young children admitted to hospital with structural THI and mild GCS scores have an appreciable risk of long-term disability, and also warrant long-term follow-up.

Management of a child with vomiting

Vomiting is a protective reflex that results in forceful ejection of stomach contents up to and out of the mouth. It is a common complaint and may be the presenting symptom of several life-threatening conditions. It can be caused by a variety of organic and nonorganic disorders; gastrointestinal (GI) or outside of GI. Acute gastritis and gastroenteritis (AGE) are the leading cause of acute vomiting in children. Important life threatening causes in infancy include congenital intestinal obstruction, atresia, malrotation with volvulus, necrotizing enterocolitis, pyloric stenosis, intussusception, shaken baby syndrome, hydrocephalus, inborn errors of metabolism, congenital adrenal hypoplasia, obstructive uropathy, sepsis, meningitis and encephalitis, and severe gastroenteritis, and in older children appendicitis, intracranial mass lesion, diabetic ketoacidosis, Reye's syndrome, toxic ingestions, uremia, and meningitis. Initial evaluation is directed at assessment of airway, breathing and circulation, assessment of hydration status and red flag signs (bilious or bloody vomiting, altered sensorium, toxic/septic/apprehensive look, inconsolable cry or excessive irritability, severe dehydration, concern for symptomatic hypoglycemia, severe wasting, Bent-over posture). The history and physical examination guides the approach in an individual patient. The diverse nature of causes of vomiting makes a "routine" laboratory or radiologic screen impossible. Investigations (Serum electrolytes and blood gases,renal and liver functions and radiological studies) are required in any child with dehydration or red flag signs, to diagnose surgical causes. Management priorities include treatment of dehydration, stoppage of oral fluids/feeds and decompression of the stomach with nasogastric tube in patients with bilious vomiting. Antiemetic ondansetron(0.2 mg/kg oral; parenteral 0.15 mg/kg; maximum 4 mg) is indicated in children unable to take orally due to persistent vomiting, post-operative vomiting, chemotherapy induced vomiting, cyclic vomiting syndrome and acute mountain sickness.

Pediatric traumatic brain injury and radiation risks: a clinical decision analysis

OBJECTIVE

To determine the optimal imaging strategy for young children with minor head injury considering health-related quality of life and radiation risk. In children with minor head trauma, the risk of missing a clinically important traumatic brain injury (ciTBI) must be weighed against the risk of radiation-induced malignancy from computed tomography (CT) to assess impact on public health.

STUDY DESIGN

We included children <2 years old with minor blunt head trauma defined by a Glasgow Coma Scale score of 14-15. We used decision analysis to model a CT-all versus no-CT strategy and assigned values to clinical outcomes based on a validated health-related quality of life scale: (1) baseline health; (2) non-ciTBI; (3) ciTBI without neurosurgery, death, or intubation; and (4) ciTBI with neurosurgery, death, or intubation >24 hours with probabilities from a prospective study of 10000 children. Sensitivity analysis determined the optimal management strategy over a range of ciTBI risk.

RESULTS

The no-CT strategy resulted in less risk with the expected probability of a ciTBI of 0.9%. Sensitivity analysis for the probability of ciTBI identified 4.8% as the threshold above which CT all becomes the preferred strategy and shows that the threshold decreases with less radiation. The CT all strategy represents the preferred approach for children identified as high-risk.

CONCLUSION

Among children <2 years old with minor head trauma, the no-CT strategy is preferable for those at low risk, reserving CT for children at higher risk.

Ultrasound evaluation of skull fractures in children: a feasibility study

OBJECTIVE

The objective of this study was to investigate feasibility and evaluate test characteristics of bedside ultrasound for the detection of skull fractures in children with closed head injury (CHI).

METHODS

This was a prospective, observational study conducted in a pediatric emergency department of an urban tertiary care children's hospital. A convenience sample of children younger than 18 years were enrolled if they presented with an acute CHI, and a computed tomography (CT) scan was performed. Ultrasound was performed by pediatric emergency medicine physicians with at least 1 month of training in bedside ultrasound. Ultrasound interpretation as either positive or negative for the presence of skull fracture was compared with attending radiologist CT scan dictation. Test characteristics (sensitivity, specificity, and positive and negative predictive values) were calculated.

RESULTS

Forty-six patients were enrolled. The median age was 2 years (range, 2 months to 17 years). Eleven patients (24%) were diagnosed with skull fractures on CT scan. Bedside ultrasound had a sensitivity of 82% (95% confidence interval [CI], 48%-97%), specificity of 94% (95% CI, 79%-99%), positive predictive value of 82% (95% CI, 48%-97%), and negative predictive value of 94% (95% CI, 79%-99%).

CONCLUSIONS

Bedside ultrasonography can be used by pediatric emergency medicine physicians to detect skull fractures in children with acute CHI. Larger studies are needed to validate these findings. Future studies should investigate the role of this modality as an adjunct to clinical decision rules to reduce unnecessary CT scans in the evaluation of acute CHI in children.

Neurologic complaints in young children in the ED: when is cranial computed tomography helpful?

MAIN OBJECTIVE

The objective of this study is to describe the use of emergent head computed tomography (CT) in young children and ask in which circumstances scans contributed to immediate management.

METHODS

We reviewed electronic records of children, aged 1 month through 6 years, who received a head CT at a large suburban emergency department between February 2008 and February 2009. Age, sex, chief complaint, history, physical examination, indication for and results of head CT, red flags in history or physical examination, final disposition, and number of head CT scans performed to date were recorded. Abnormalities on CT scans were classified as significant or incidental, and subsequent interventions were documented.

RESULTS

Emergent head CTs were performed on 394 children. The most common indications were trauma, 65%; seizure, 11%; and headache, 6%. Computed tomographic abnormalities were found in 40% (154 children): 32 significant findings,104 incidental findings, and 22 preexisting abnormalities. Four children with significant findings required immediate intervention. They all had red flags in both history and physical examination, and 3 of 4 children had known preexisting pathology; 1 child had nonaccidental trauma. Only 1 child had a significantly abnormal CT with no identifiable red flags; this child was admitted for observation and was discharged within 24 hours. Approximately a third of children had no readily identifiable red flag for the CT scans that they received. Of note, 20% of the young children had received more than 1 head CT scan to date, and 6% had between 6 and 20 scans.

CONCLUSIONS

Every child in this sample who required emergency intervention had red flags on history and physical examination. The 35% of CT scans performed in young children without red flags did not contribute usefully to their acute management.

Diagnostic accuracy of clinical characteristics for identifying CT abnormality after minor brain injury: a systematic review and meta-analysis

Clinical features can be used to identify which patients with minor brain injury need CT scanning. A systematic review and meta-analysis was undertaken to estimate the value of these characteristics for diagnosing intracranial injury (including the need for neurosurgery) in adults, children, and infants. Potentially relevant studies were identified through electronic searches of several key databases, including MEDLINE, from inception to March 2010. Cohort studies of patients with minor brain injury (Glasgow Coma Score [GCS], 13-15) were selected if they reported data on the diagnostic accuracy of individual clinical characteristics for intracranial or neurosurgical injury. Where applicable, meta-analysis was used to estimate pooled sensitivity, specificity and likelihood ratios. Data were extracted from 71 studies (with cohort sizes ranging from 39 to 31,694 patients). Depressed or basal skull fracture were the most useful clinical characteristics for the prediction of intracranial injury in both adults and children (positive likelihood ratio [PLR], >10). Other useful characteristics included focal neurological deficit, post-traumatic seizure (PLR >5), persistent vomiting, and coagulopathy (PLR 2 to 5). Characteristics that had limited diagnostic value included loss of consciousness and headache in adults and scalp hematoma and scalp laceration in children. Limited studies were undertaken in children and only a few studies reported data for neurosurgical injuries. In conclusion, this review identifies clinical characteristics that indicate increased risk of intracranial injury and the need for CT scanning. Other characteristics, such as headache in adults and scalp laceration of hematoma in children, do not reliably indicate increased risk.

Are we following the guiding SIGN when managing paediatric head injury?

BACKGROUND AND AIMS

The Scottish Intercollegiate Guidelines Network (SIGN) has published guidelines for the management of children with head injuries. The management of children with head injuries admitted to our local unit under the Paediatric Surgeons has been audited to determine whether or not current practice follows SIGN recommendations.

METHODS

Data were collected retrospectively from the case records of patients admitted between January and December 2007. The SIGN guideline 'Early Management of Patients with a Head Injury' (Guideline 46) was published in 2000 and updated in 2009 (Guideline 110). Head injury admission practices were audited against both guidelines.

RESULTS

The case records of 200 patients were analysed. According to SIGN Guideline 46 (2000), 146 Computed Tomography (CT) scans were indicated but only 24 were performed (16%). The updated Guideline 110 (2009) suggests a CT scan was indicated in 24 patients and should have been considered in a further 87. However, only 12 (50%) and 18 (21%) patients were imaged in these respective groups. Both guidelines indicated neurosurgical review in 13 patients but sought in only 4 (31%). 50 patients were deemed to have suffered a significant head injury warranting follow-up, but this was arranged in only 14 (28%).

CONCLUSIONS

Our study has identified that management of paediatric head injuries in our unit is reliant on clinical acumen rather than the SIGN guidelines when making decisions regarding the need for imaging, neurosurgical review and follow-up. We suggest further investigation is required to determine whether greater awareness and closer adherence with the guidelines would alter clinical outcomes.

Age differences in brain injury characteristics

PURPOSE

Traumatic brain injury (TBI) is an important cause of morbidity and mortality in children. Despite the high incidence of head injury among children, the mortality rate is low. There is a lack of studies that describe children's age-specific symptoms in relation to outcome. The purpose is to investigate if other described symptoms could be used as a predictor of intracranial injury in children.

METHODS

Retrospective review of data from all children who during 1 year were admitted due to a brain injury.

RESULTS

During 1 year 724 children visited the ED due to a brain injury. A significant difference was found between age groups and other documented initial symptoms, but no single symptoms could be used as a predictor for intracranial injury.

CONCLUSION

Unconsciousness as a predictor for brain injury should be used with caution in children. Significant differences were found in other documented symptoms between age groups.

Mild traumatic brain injury in children

Head injury occurs frequently in childhood and results in approximately 500,000 emergency department visits and over $1 billion in costs annually. Nearly 75% of these children are ultimately diagnosed with mild traumatic brain injury (MTBI), a misnomer because many will have radiographically identified intracranial injuries and long-term consequences. Identification of the brain at risk and prevention of secondary injury is associated with the largest reduction in head trauma morbidity and mortality. This article reviews the current literature to discuss the initial evaluation, management, and long-term outcomes in children sustaining MTBI.

Validation of a clinical score to predict skull fracture in head-injured infants

OBJECTIVES

To validate a previously derived clinical score that uses clinical signs to determine which head-injured infants are at risk of skull fracture. The clinical score is calculated on the basis of the patient's age, the scalp hematoma size, and the location of the hematoma, with a total value between 0 and 8.

METHODS

We performed a prospective observational study of children younger than 2 years with blunt head trauma presenting to an urban pediatric emergency department. Among subjects who had head imaging performed (validation set), we assessed the utility of our clinical score to detect skull fracture and intracranial injury.

RESULTS

In the 203 patients with imaging, 51 (25%) were diagnosed with skull fracture and 29 (14%) with intracranial injury. A clinical score of 4 or greater identified 90% (46/51) of patients with skull fracture with a sensitivity of 0.90 (95% confidence interval [CI], 0.78-0.96) and a specificity of 0.78 (95% CI, 0.70-0.84). A clinical score of 3 or greater identified 93% (27/29) of those with an intracranial injury with a sensitivity of 0.93 (95% CI, 0.76-0.99) and a specificity of 0.42 (95% CI, 0.35-0.50). A score of 3 or greater identified 100% of intracranial injury among asymptomatic patients.

CONCLUSIONS

We have validated our clinical scoring system as an accurate way of determining an infant's risk of skull fracture. Whereas a clinical score of 4 or greater maximizes the trade-off between sensitivity and specificity for identifying skull fracture, a clinical score of 3 or greater may be preferable for detecting intracranial injury.

Low plasma D-dimer concentration predicts the absence of traumatic brain injury in children

BACKGROUND

Head Computerized Tomography (CT) has significant risks, especially in children. To reduce this burden, we sought to develop a biomarker panel that predicts the absence of traumatic brain injury (TBI) on head CT.

METHODS

We conducted a prospective cohort observational study followed by validation in a retrospective cohort at a regional pediatric trauma center. The prospective cohort included 57 consecutive children evaluated for TBI in the emergency department between September 2007 and March 2008. At the time of initial evaluation, blood was obtained to measure electrolytes, coagulation markers, complete blood count, and plasma levels of s100beta, D-dimer, and matrix metalloproteinase-9. We conducted routine statistical analysis to determine which predicted TBI on head CT. The independent retrospective cohort included 57 consecutive patients evaluated for the same indication.

RESULTS

All patients generally met common clinical criteria (such as the CHALICE criteria 4) for head CT after trauma. Plasma levels of D-dimer were associated with TBI on head CT by univariate analysis (p < 0.001). Other markers including prothrombin time, partial thromboplastin time, and s100beta were not. D-dimer also had the strongest association in multivariate analysis (p = 0.02). This association was independent of and stronger than the baseline Glascow Coma Scale (p = 0.08). A D-dimer level cut-off of 500 pg/microl had 94% negative predictive value (p < 0.001) for brain injury on head CT. The discriminatory capacity of this D-dimer level was confirmed in the independent retrospective cohort.

CONCLUSIONS

In children who meet clinical criteria for a head CT scan after trauma, low plasma d-dimer suggests the absence of significant brain injury.

[Registry of mild craniocerebral trauma: multicentre study from the Spanish Association of Pediatric emergencies]

OBJECTIVE

To determine management practices of minor head trauma in children evaluated at Spanish Hospital Emergency Departments and to determine patient variables associated with intracranial injury.

METHODS

Multicenter and prospective study during 18 months in 9 hospitals in Spain. Patients up to the age of 18 years with minor head trauma (Glasgow Coma Scale score higher than or equal to 13 on admission), treated in Emergency Departments and with a maximum onset of 72h since the traumatism, were included in the study.

RESULTS

A total of 1070 patients were studied with a median age of 2.4 years (p25-75 0.9-6.4 years); 61.2% were male. The median time between head trauma and medical consultation was 1 hour (p25-75 0.6-2.5h). Skull X-rays were performed on 64.5% of the children and a head CT scan on 9%; 91.4% of X-ray and 84.4% of CT were normal. The prevalence of intracranial injury was 1.4% (95% CI: 0.8-2.3). Twenty-five point three percent of the patients were admitted; 4 (3.7%) required neurosurgical intervention during admission. None of the patients died. Multiple logistic regression analysis identified loss of consciousness (OR 4.2, 95% CI: 1.1-17; P=0.045), neurological deterioration (OR 8.8, 95% CI: 2.1-37.6; P=0.003) and cephalhaematoma (OR 14.6, 95% CI: 4.9-44; P <0.001) as independent predictors of intracranial injury.

CONCLUSIONS

The combination of clinical parameters allows selection of patients with minor head trauma who need complementary explorations. In consequence, the routine use of skull X-ray in their initial evaluation is unnecessary.