Evaluation of Missing Prehospital Physiological Values in Injured Children and Adolescents

An Activation Failure: Factors Associated With Undertriage of Pediatric Major Trauma Victims

INTRODUCTION

Undertriage of children contributes to poorer clinical outcomes. The objective of this study was to determine factors associated with undertriage of pediatric major trauma victims.

METHODS

We performed a retrospective cross-sectional study of children (aged < 16 ys) using the 2021 American College of Surgeons National Trauma Data Bank. We identified children who met the definition of major trauma defined by the Standard Triage Assessment Tool. We performed multivariable logistic regression to determine factors associated with undertriage, defined as encounters which met criteria, but did not receive highest-level activation.

RESULTS

Of 97,812 included children, 5.3% met major trauma criteria. Undertriage occurred in 34.4% of encounters with major trauma. Factors associated with undertriage included fall and striking mechanisms, missing blood pressure, private vehicle arrival, and incoming interfacility transfers. Hypotension, decreased level of consciousness, prehospital and in-hospital intubation, tachycardia, hypothermia, penetrating mechanism, presentation to a pediatric level 2 or adult level 1 trauma center relative to pediatric level 1 center, and arrival by flight were associated with lower odds of undertriage.

CONCLUSIONS

Many children with major trauma were undertriaged, particularly those presenting with lower-risk histories, such as private vehicle arrivals and fall mechanisms. Future work should seek to develop risk-stratification systems that can better identify children with major trauma, with an emphasis on those with blunt traumatic mechanisms.

Limitations of Blood Pressure Measurements in Pediatric Trauma Patients During Field Triage

INTRODUCTION

Recent revisions of national field triage guidelines recommend the addition of age-specific systolic blood pressure (SBP) measurement for identifying the most severely injured children requiring transport to a trauma center. The purpose of this study was to determine the frequency in which blood pressures are documented by Emergency Medical Service (EMS) providers and the role this measurement has had, among other factors, in triage decisions.

METHODS

This is an exploratory descriptive study with a retrospective review from the trauma registry database of all pediatric trauma admissions that arrived by EMS at a level II pediatric trauma center from January 1, 2019 to December 31, 2022.

RESULTS

Two hundred ninety-eight patient records of patients aged 0 to 14 were included. EMS providers documented blood pressure in 70.1% of the total sample. A significant difference in the frequency of this documentation was seen between ages zero to nine and = > 10 years (χ2(1,298) = 28.98 p <0.001). No children ages zero to nine years had SBP of < 70 mmHg + (2x age in years) documented by EMS. There were two children aged = > 10 who had a documented SBP < 90 and 12 children with documented EMS heart rate > SBP.

CONCLUSION

Many children transported by EMS in this hospital's catchment area did have a field blood pressure measurement documented, but the frequency was significantly less in younger-aged children. The blood pressure measurements of children determined to have severe injuries in the sample did not meet the inclusion criteria for high risk of serious injury by the newly established national guidelines. This suggests other prehospital criteria, such as mechanism of injury or visual cues, prompted EMS to transport these pediatric trauma patients to a regional trauma center for specialized care.

Validation of motor component of Glasgow coma scale in lieu of total Glasgow coma scale as a pediatric trauma field triage tool

INTRODUCTION

Prehospital trauma triage and disability assessment of pediatric patients can be challenging on the field, especially in the pre-verbal age group. It would be useful if the same triage tool and criteria can be used for both adults and children to risk-stratify the need of higher acuity of trauma care.

STUDY OBJECTIVE

We aimed to investigate if using only the motor component of Glasgow Coma Scale (mGCS), as a quick field trauma triage tool, was non-inferior to total GCS (tGCS), and if mGCS <6 was non-inferior to tGCS <14, in predicting the need for intensive care or mortality in the pediatric population.

METHODS

We performed a retrospective review of patients <18-years-old, who presented to our emergency department (ED) with moderate (Injury Severity Score (ISS) 9-15) to severe (ISS > 15) traumatic injuries from January 2012 to December 2021. Using ED triage data, mortality and the need for intensive care unit (ICU) admission were used as surrogate outcomes to investigate if mGCS <6 was non-inferior to tGCS <14, and the area-under-the-receiver-operating-characteristic curve (AUROC) was used as a measure of comparability.

RESULTS

Among 582 included for analysis, the median age was 7-years-old (2-12), and most were male (63.4%). 22.4% patients demised or required ICU care. mGCS <6 had an AUROC of 0.75 (95% CI 0.70 to 0.79), which was non-inferior to tGCS <14; AUROC 0.76, (95% CI 0.72 to 0.81), for identifying children requiring ICU management or demised. The results shown here were based on the AUROCs that were used to evaluate the discriminatory ability of tGCS <14 and mGCS <6 in prediction of mortality and the need for ICU care.

CONCLUSION

Our study showed that mGCS was significantly associated with tGCS, and was non- inferior to the latter as a triage tool in pediatric trauma. It validated the use of mGCS <6 in lieu of tGCS <14 in the pre-hospital field triage of pediatric patients, in identification of children at risk of death or requiring ICU care. Larger prospective, observational studies using on-scene data would be required for more robust validation and determine optimal cut-offs.

Completeness of Pediatric Versus Adult Patient Assessment Documentation in the National Emergency Medical Services Information System

BACKGROUND

Pediatric prehospital encounters are proportionally low-frequency events. National pediatric readiness initiatives have targeted gaps in prehospital pediatric assessment and management. Regional studies suggest that pediatric vital signs are inconsistently obtained and documented. We aimed to assess national emergency medical services (EMS) data to evaluate completeness of assessment documentation for pediatric versus adult patients and to identify the documentation of condition-specific assessments.

METHODS

We performed a retrospective cross-sectional analysis of EMS encounters from the National Emergency Medical Services Information System for 2019, including all 9-1-1 encounters resulting in transport. Our primary outcome was the proportion of encounters with complete vital signs (heart rate, respiratory rate, and systolic blood pressure) documented by pediatric age category relative to adult encounters. Pediatric patients were considered as those less than 18 years old. Our secondary outcome was condition-specific assessments for encounters with respiratory emergencies, cardiac complaints, and trauma. We performed multivariable logistic regression to calculate odds ratios (OR) and 95% confidence intervals (95% CI) for vital signs documentation by age after adjusting for sex, injury status, transport type (advanced vs basic life support), census region, urbanicity, organization nonprofit status, and organization type.

RESULTS

Of 18,918,914 EMS encounters, 6.4% involved pediatric patients. Documentation of complete vital signs was lowest in those <1 month old (30.8%) and rose with increasing age (highest in adults; 91.8%). Relative to adults, the adjusted odds of documented complete vital signs in patients <1 month old was 0.03 (95% CI 0.03-0.03) and increased with age to 0.76 (95% CI 0.75-0.77) in those 12-17 years old. Among those patients with respiratory, cardiac, and traumatic complaints, children had lower proportions of documented pulse oximetry, monitor use, and pain scores, respectively, compared to adults.

CONCLUSION

Documentation of complete vital signs and condition-specific assessments occurs less frequently in children, especially in younger age groups, as compared to adults, which is a finding that exists across urbanicity, region, and level of response. These findings provide a benchmark for clinical care, quality improvement, and research in the prehospital setting.