Structured Callouts, the Shared Mental Model, and Teamwork: A Video-Based Study in a Pediatric Emergency Department.

OBJECTIVES: The shared mental model is essential to high-quality resuscitations. A structured callout (SCO) is often performed to establish the shared mental model, but the literature on SCOs is limited. The objectives of this study are to describe performance of SCOs during pediatric medical emergencies and to determine whether a SCO is associated with better teamwork. METHODS: This was a retrospective study in the resuscitation area of an academic pediatric emergency department, where performance of a SCO is a standard expectation. Only medical or nontrauma patients were eligible for inclusion. Data collection was performed by structured video review by 2 observers and verified by a third blinded observer. A SCO was defined as team leader (Pediatric Emergency Medicine fellow or faculty physician) verbalization of at least 1 element of the patient history/examination or an assessment of patient physiology and 1 element of the diagnostic or therapeutic plan. We independently measured teamwork using the Teamwork Emergency Assessment Measure (TEAM) tool. RESULTS: We reviewed 60 patient encounters from the pediatric emergency department resuscitation area between April 2018 and June 2020. Median patient age was 6 years; the team leader was a Pediatric Emergency Medicine fellow in 55% of encounters. The physician team leader performed a SCO in 38 (63%) of patient encounters. The TEAM scores were collected for 46 encounters. Mean TEAM score (SD) was 42.3 (1.7) in patients with a SCO compared with 40.0 (3.0) in those without a SCO ( P = 0.007). CONCLUSIONS: Performance of a SCO was associated with better teamwork, but the difference was of unclear clinical significance.

The Importance of Median Glossoepiglottic Fold Engagement on Laryngeal View and Tracheal Intubation Success in Children.

STUDY OBJECTIVE: Our study objective was to determine if the location of laryngoscope blade tip placement is associated with clinically important tracheal intubation outcomes in a pediatric emergency department. METHODS: We conducted a video-based observational study of pediatric emergency department patients undergoing tracheal intubation with standard geometry Macintosh and Miller video laryngoscope blades (Storz C-MAC, Karl Storz). Our main exposures were direct lifting of the epiglottis versus blade tip placement within the vallecula and median glossoepiglottic fold engagement versus not when the blade tip was placed in the vallecula. Our main outcomes were glottic visualization and procedural success. We compared measures of glottic visualization between successful and unsuccessful attempts using generalized linear mixed models. RESULTS: Proceduralists placed the blade tip in the vallecula (indirectly lifting the epiglottis) during 123 (71.9%) of 171 attempts. When compared with indirectly lifting the epiglottis, directly lifting the epiglottis was associated with improved visualization-by percentage of glottic opening (POGO) (adjusted odds ratio [AOR], 11.0; 95% confidence interval [CI], 5.1 to 23.6) and modified Cormack-Lehane (AOR, 21.5; 95% CI, 6.6 to 69.9). When in the vallecula, engagement of the median glossoepiglottic fold was associated with improved POGO (AOR, 3.6; 95% CI, 1.9 to 6.8), modified Cormack-Lehane (AOR, 3.9; 95% CI, 1.1 to 14.1), and success (AOR, 9.9; 95% CI, 2.3 to 43.7). CONCLUSIONS: Emergency tracheal intubation can be performed in children at a high level by directly or indirectly lifting the epiglottis. If indirectly lifting the epiglottis, median glossoepiglottic fold engagement is helpful in maximizing glottic visualization and procedural success.

Video-Assisted Laryngoscopy for Pediatric Tracheal Intubation in the Emergency Department: A Multicenter Study of Clinical Outcomes.

STUDY OBJECTIVE: To explore the association between video-assisted laryngoscopy (use of a videolaryngoscope regardless of where laryngoscopists direct their gaze), first-attempt success, and adverse airway outcomes. METHODS: We conducted an observational study using data from 2 airway consortiums that perform prospective surveillance: the National Emergency Airway Registry for Children (NEAR4KIDS) and a pediatric emergency medicine airway education collaborative. Data collected included patient and procedural characteristics and procedural outcomes. We performed multivariable analyses of the association of video-assisted laryngoscopy with individual patient outcomes and evaluated the association between site-level video-assisted laryngoscopy use and tracheal intubation outcomes. RESULTS: The study cohort included 1,412 tracheal intubation encounters performed from January 2017 to March 2021 across 11 participating sites. Overall, the first-attempt success was 70.0%. Video-assisted laryngoscopy was associated with increased odds of first-attempt success (odds ratio [OR] 2.01; 95% confidence interval [CI], 1.48 to 2.73) and decreased odds of severe adverse airway outcomes (OR 0.70; 95% CI, 0.58 to 0.85) including decreased severe hypoxia (OR 0.69; 95% CI, 0.55 to 0.87). Sites varied substantially in the use of video-assisted laryngoscopy (range from 12.9% to 97.8%), and sites with high use of video-assisted laryngoscopy (> 80%) experienced increased first-attempt success even after adjusting for individual patient laryngoscope use (OR 2.30; 95% CI, 1.79 to 2.95). CONCLUSION: Video-assisted laryngoscopy is associated with increased first-attempt success and fewer adverse airway outcomes for patients intubated in the pediatric emergency department. There is wide variability in the use of video-assisted laryngoscopy, and the high use is associated with increased odds of first-attempt success.

A Video-Based Study of Emergency Medical Services Handoffs to a Pediatric Emergency Department.

BACKGROUND: Emergency medical services (EMS) to emergency department (ED) handoffs are important moments in patient care, but patient information is communicated inconsistently. OBJECTIVE: The aim of this study was to describe the duration, completeness, and communication patterns of patient handoffs from EMS to pediatric ED clinicians. METHODS: We conducted a video-based, prospective study in the resuscitation suite of an academic pediatric ED. All patients 25 years and younger transported via ground EMS from the scene were eligible. We completed a structured video review to assess frequency of transmission of handoff elements, handoff duration, and communication patterns. We compared outcomes between medical and trauma activations. RESULTS: We included 156 of 164 eligible patient encounters from January to June 2022. Mean (SD) handoff duration was 76 (39) seconds. Chief symptom and mechanism of injury were included in 96% of handoffs. Most EMS clinicians communicated prehospital interventions (73%) and physical examination findings (85%). However, vital signs were reported for fewer than one-third of patients. EMS clinicians were more likely to communicate prehospital interventions and vital signs for medical compared with trauma activations (p < 0.05). Communication challenges between EMS clinicians and the ED were common; ED clinicians interrupted EMS or requested information already communicated by EMS in nearly one-half of handoffs. CONCLUSIONS: EMS to pediatric ED handoffs take longer than recommended and frequently lack important patient information. ED clinicians engage in communication patterns that may hinder organized, efficient, and complete handoff. This study highlights the need for standardizing EMS handoff and ED clinician education regarding communication strategies to ensure active listening during EMS handoff.

Videographic Assessment of Tracheal Intubation Technique in a Network of Pediatric Emergency Departments: A Report by the Videography in Pediatric Resuscitation (VIPER) Collaborative.

STUDY OBJECTIVE: We sought to describe the tracheal intubation technique across a network of children's hospitals and explore the association between intubation technical adjuncts and first-attempt success as well as between laryngoscopy duration and the incidence of hypoxemia. METHODS: We conducted a prospective observational study in 4 tertiary pediatric emergency departments of the Videography in Pediatric Resuscitation Collaborative. Children undergoing tracheal intubation captured on video were eligible for inclusion. Data on intubator background, patient characteristics, technical characteristics (eg, use of videolaryngoscopy and apneic oxygenation), and procedural outcomes were obtained through a video review. RESULTS: We obtained complete data on first attempts in 494 patients. The first-attempt success rate was 67%, the median laryngoscopy duration was 35 seconds (interquartile range 25 to 40), and hypoxemia occurred in 15% of the patients. Videolaryngoscopy was used for at least a part of the procedure in 48% of the attempts, and it had no association with success or the incidence of hypoxemia. Attempts in which videolaryngoscopy was used for the entire procedure (compared with direct laryngoscopy for the entire procedure) had a longer duration (the difference between the medians was 6 seconds; 95% confidence interval, 1 to 12 seconds). Intubation attempts longer than 45 seconds had a greater incidence of hypoxemia (29% versus 6%). Furthermore, apneic oxygenation was used in 8% of the first attempts. CONCLUSION: Among children undergoing tracheal intubation in a group of pediatric emergency departments, first-attempt success occurred in 67% of the patients. Videolaryngoscopy use was associated with longer laryngoscopy durations but was not associated with success or the incidence of hypoxemia.

Video Laryngoscope Screen Visualization and Tracheal Intubation Performance: A Video-Based Study in a Pediatric Emergency Department.

STUDY OBJECTIVE: Our study objectives were to describe patterns of video laryngoscope screen visualization during tracheal intubation in a pediatric emergency department (ED) and to determine their associations with procedural performance. METHODS: We conducted a prospective, observational, video-based study of pediatric ED patients undergoing tracheal intubation with a standard geometry video laryngoscope (Storz C-MAC; Karl Storz, Tuttlingen, Germany). Our primary exposure was video screen visualization patterns, measured by the percentage of each attempt spent viewing the screen and the number of times the proceduralist changed their gaze between the patient and screen (gaze switches). Our primary outcome was first-pass success. We compared measures of screen visualization between successful and unsuccessful first attempts using a generalized linear mixed model. RESULTS: From December 2019 to October 2021, we collected data on 153 patients. The first-pass success rate was 79.1%. Proceduralists viewed the video screen during 80.4% of attempts; the median percentage of each attempt spent viewing the video screen was 42.1% (interquartile range 8.7% to 65.5%). The median number of gaze switches per attempt was 3 (interquartile range 1 to 6, maximum 22). The percentage of each attempt spent viewing the video screen was not associated with success (adjusted odds ratio 1.00, 95% confidence interval 0.93 to 1.08); additional gaze switches were associated with a lower likelihood of success (adjusted odds ratio 0.80, 95% confidence interval 0.71 to 0.90). CONCLUSION: We found wide variation in how proceduralists viewed the video laryngoscope screen during intubations in a pediatric ED. We illustrate the application of 2 objective screen visualization measures to quantify and understand how clinicians actually use video laryngoscopy.

Fraction of Expired Oxygen as a Measure of Preoxygenation Prior to Rapid Sequence Intubation in the Pediatric Emergency Department.

BACKGROUND: Pulse oximetry (SpO2) is a flawed measure of adequacy of preoxygenation prior to intubation. The fraction of expired oxygen (FeO2) is a promising but understudied alternative. OBJECTIVE: To investigate FeO2 as a measure of preoxygenation prior to intubation in a pediatric emergency department. METHODS: We conducted a prospective, observational study of patients 18 and younger. We collected data using video review, and FeO2 was measured via inline sampling. The main outcomes were FeO2 and SpO2 at the start of preoxygenation, end of preoxygenation/start of intubation attempt, and the end of intubation attempt. We compared FeO2 and SpO2 at the end of preoxygenation for patients with and without oxyhemoglobin desaturation. RESULTS: We enrolled 85 of 88 eligible patients during the 14-month study period. FeO2 data were available at the start of preoxygenation for 53 of 85 patients (62%), and for the end of preoxygenation for 59 of 85 patients (69%). Median FeO2 at the start and end of preoxygenation was 90% (interquartile range [IQR] 88, 92) and 90% (IQR 88, 92). Median SpO2 at the start and end of preoxygenation was 100% (IQR 100, 100). There were 11 episodes of desaturation, with median FeO2 at the start of intubation attempt of 89.5 (IQR 54.5, 91.5) and median SpO2 of 100 (IQR 99, 100). Patients who did not have a desaturation event had a median FeO2 of 90.0 (IQR 88.0, 92.0). CONCLUSIONS: Measuring FeO2 during rapid sequence intubation is challenging with feasibility limitations, but may be a more discriminatory metric of adequate preoxygenation.

Don't Hold Your Breath-A Video-Based Study of Procedural Intervals During Pediatric Rapid Sequence Intubation.

OBJECTIVE: Develop a framework for data collection to determine the contributions of both laryngoscopy and tube delivery intervals to the apneic period in unsuccessful and successful attempts among patients undergoing rapid sequence intubation (RSI) in a pediatric emergency department (PED). DESIGN: This was a retrospective, observational study of RSI. SETTING: An academic PED. PATIENTS: A consecutive sample of all intubations attempts of first provider physicians performing RSI in the shock trauma suite over a 10-month period in 2018-2019. MEASUREMENT AND MAIN RESULTS: Data were collected by structured video review. The main outcome was the duration of the laryngoscopy and tube delivery intervals per attempt. We compared interval duration between successful and unsuccessful attempts, adjusting for age, accounting for repeated measures, and clustering by provider. There were 69 patients with 89 total intubation attempts. Sixty-three patients were successfully intubated by the first provider (91%). Pediatric emergency medicine fellows performed 54% of the attempts. The median duration of the apneic period per attempt was longer in unsuccessful attempts (57 vs 44 seconds; median of difference, -10.5; 95% confidence interval [CI], -17.0 to -4.0). The duration of laryngoscopy was similar (18 vs 13 seconds; median of difference, -3.5; 95% CI, -8.0 to 1.0), but tube delivery was longer in unsuccessful attempts (25.5 vs. 11 seconds; median of difference, -12.5; 95% CI, -17.0 to -4.0). These results did not change when adjusting for age or clustering by provider. CONCLUSIONS: We successfully developed a specific, time-based framework for the contributors to prolonged apnea in RSI. Prolonged tube delivery accounted for more of the apneic period. Future studies and improvement should focus on problems during tube delivery in the PED.

The Medical Resuscitation Committee: Interprofessional Program Development to Optimize Care for Critically Ill Medical Patients in an Academic Pediatric Emergency Department.

ABSTRACT: Provision of optimal care to critically ill patients in a pediatric emergency department is challenging. Specific challenges include the following: (a) patient presentations are highly variable, representing the full breadth of human disease and injury, and are often unannounced; (b) care team members have highly variable experience and skills and often few meaningful opportunities to practice care delivery as a team; (c) valid data collection, for quality assurance/improvement and clinical research, is limited when relying on traditional approaches such as medical record review or self-report; (d) specific patient presentations are relatively uncommon for individual providers, providing few opportunities to establish and refine the requisite knowledge and skill; and (e) unscientific or random variation in care delivery. In the current report, we describe our efforts for the last decade to address these challenges and optimize care delivery to critically ill patients in a pediatric emergency department. We specifically describe the grassroots development of an interprofessional medical resuscitation program. Key components of the program are as follows: (a) a database of all medical patients undergoing evaluation in the resuscitation suite, (b) peer review and education through video-based case review, (c) a program of emergency department in situ simulation, and (d) the development of cognitive aids for high-acuity, low-frequency medical emergencies.

Development of a Hand Motion-based Assessment System for Endotracheal Intubation Training.

Endotracheal intubation (ETI) is a procedure to manage and secure an unconscious patient's airway. It is one of the most critical skills in emergency or intensive care. Regular training and practice are required for medical providers to maintain proficiency. Currently, ETI training is assessed by human supervisors who may make inconsistent assessments. This study aims at developing an automated assessment system that analyzes ETI skills and classifies a trainee into an experienced or a novice immediately after training. To make the system more available and affordable, we investigate the feasibility of utilizing only hand motion features as determining factors of ETI proficiency. To this end, we extract 18 features from hand motion in time and frequency domains, and also 12 force features for comparison. Subsequently, feature selection algorithms are applied to identify an ideal feature set for developing classification models. Experimental results show that an artificial neural network (ANN) classifier with five hand motion features selected by a correlation-based algorithm achieves the highest accuracy of 91.17% while an ANN with five force features has only 80.06%. This study corroborates that a simple assessment system based on a small number of hand motion features can be effective in assisting ETI training.

A Video-Based, Case-Control Study of Factors Associated With Intraosseous Catheterization During Pediatric Resuscitation.

STUDY OBJECTIVE: Factors associated with intraosseous (IO) catheterization are not well described. Our objective is to identify factors associated with the attempt and timing of IO catheterization in a pediatric emergency department (ED) resuscitation setting. METHODS: We completed a video-based, case-control study (1:3 ratio) of children undergoing IO catheterization in the resuscitation area of a high-volume, academic, pediatric ED. We selected 8 independent factors a priori for analysis: younger than 2 years, Glasgow Coma Scale score less than 8, cardiopulmonary resuscitation (CPR), parent or caregiver presence, physician team leader with greater than 5 years of pediatric ED experience, 2 or more IO-catheterization-capable staff, ultrasonographically trained nurse vascular access team presence, and resuscitation occurring during the evening (4 pm to midnight) or overnight (midnight to 8 am) shift. We fit linear regression models to analyze for associations with IO access attempts and timing. RESULTS: One hundred fourteen patients were enrolled; 40 encounters involved IO catheterization (35.1%). Only CPR was associated with IO catheterization (odds ratio 39.0; 95% confidence interval 12.5 to 121.6). Mean time to IO attempt was shorter with CPR (3.2 versus 14.2 minutes) and longer with vascular access team presence (23.5 versus 3.4 minutes) or caregiver presence (10.5 versus 2.6 minutes). Of resuscitations that achieved peripheral intravenous access, only 1 (1.1%) did so in less than 90 seconds. CONCLUSION: CPR was the only factor associated with IO access attempts, whereas providers may have been more hesitant to attempt IO catheterization with vascular access team or caregiver presence. Future studies should include a larger, multicenter sample and use qualitative methods to explore reasons for IO catheterization hesitancy, especially in the nonarrest scenario.

Resident Performance of the Rapid Cardiopulmonary Assessment in the Emergency Department.

OBJECTIVES: The rapid cardiopulmonary assessment (RCPA) is an essential first step in effective resuscitation of critically ill children. Pediatric residents may not be achieving competency with resuscitative skills, including RCPA. Our objective was to determine how often pediatric residents complete the RCPA for actual patients. METHODS: This was an observational, cross-sectional study of senior residents (≥postgraduate year 2) performing the RCPA in the resuscitation area of a high-volume pediatric emergency department (PED), where pediatric residents are expected to perform the bedside examination and assessment for all medical (nontrauma) patients. Data were collected primarily by video review on a standard form. The primary outcome was completion of the RCPA, defined as both examination and verbalized assessment of the airway, breathing, and circulation. We explored the association between RCPA completion and both residency year and number of previous PED rotations. RESULTS: Complete data were collected from one randomly selected patient for 71 (95%) of 75 of eligible senior residents who rotated in the PED between January and June 2013. Two residents (3%) performed a complete RCPA. Verbalized assessment of circulation was especially rare (7/71; 10%). There was no association between RCPA completion and year of training or previous PED experience (P > 0.05). CONCLUSIONS: Senior pediatric resident performance of the RCPA in the resuscitation area of a high-volume PED was poor. There was no association between RCPA completion and greater resident experience, including in the PED. These findings add to a growing body of literature suggesting that pediatric residents are not achieving competency with the RCPA and resuscitation skills.

Videography in Pediatric Emergency Research: Establishing a Multicenter Collaborative and Resuscitation Registry.

OBJECTIVES: High-quality clinical research of resuscitations in a pediatric emergency department is challenging because of the limitations of traditional methods of data collection (chart review, self-report) and the low frequency of cases in a single center. To facilitate valid and reliable research for resuscitations in the pediatric emergency department, investigators from 3 pediatric centers, each with experience completing successful single-center, video-based studies, formed the Videography In Pediatric Emergency Research (VIPER) collaborative. METHODS: Our initial effort was the development of a multicenter, video-based registry and simulation-based testing of the feasibility and reliability of the VIPER registry. Feasibility of data collection was assessed by the frequency of an indeterminate response for all data elements in the registry. Reliability was assessed by the calculation of Cohen κ for dichotomous data elements and intraclass correlation coefficients for continuous data elements. RESULTS: Video-based data collection was completed for 8 simulated pediatric resuscitations, with at least 2 reviewers per case. Data were labeled as indeterminate by at least 1 reviewer for 18 (3%) of 524 relevant data fields. The Cohen κ for all dichotomous data fields together was 0.81 (95% confidence interval, 0.61-1.0). For all continuous (time-based) variables combined, the intraclass correlation coefficient was 0.88 (95% confidence interval, 0.70-0.96). CONCLUSIONS: Initial simulation-based testing suggests video-based data collection using the VIPER registry is feasible and reliable. Our next step is to assess feasibility and reliability for actual pediatric resuscitations and to complete several prospective, hypothesis-based studies of specific aspects of resuscitative care, including of cardiopulmonary resuscitation, tracheal intubation, and teamwork and communication.

Apneic oxygenation to prevent oxyhemoglobin desaturation during rapid sequence intubation in a pediatric emergency department.

BACKGROUND: Apneic oxygenation is the delivery of oxygen to the nasopharynx during intubation. It may mitigate the risk of oxyhemoglobin desaturation but has not been well-studied in children. METHODS: We conducted a retrospective, observational study of patients undergoing rapid sequence intubation (RSI) in a pediatric emergency department. We compared patients who received apneic oxygenation, delivered via simple nasal cannula at age-specific flow rates, to patients who did not receive apneic oxygenation. The main outcome was occurrence of oxyhemoglobin desaturation during RSI, defined as oxyhemoglobin saturation dropping to <90% at any time after the administration of paralytic medication and before the endotracheal tube was secured. Data were analyzed using logistic regression, with groups as a fixed effect and patients' age and number of attempts as covariates. RESULTS: Data were collected for 305 of 323 patients who underwent RSI over a 49 month period. Oxyhemoglobin desaturation occurred for 50 patients when apneic oxygenation was used (22%, 95% CI 17% to 28%) and 11 patients without apneic oxygenation (14%, 95% CI 7% to 24%; p > 0.05). There was no difference in the median duration of desaturation or depth of desaturation for the apneic oxygenation group (52 s, 71%) compared to the group without apneic oxygenation (65 s, 79%; p > 0.05). Controlling for covariates, apneic oxygenation was not associated with a lower risk of oxyhemoglobin desaturation, time to desaturation, or depth/duration of desaturation episodes. CONCLUSIONS: In an observational, video-based study of pediatric patients, apneic oxygenation was not associated with a lower risk of oxyhemoglobin desaturation during RSI.

A Survey Assessment of Perceived Importance and Methods of Maintenance of Critical Procedural Skills in Pediatric Emergency Medicine.

OBJECTIVE: The aim of this study was to delineate pediatric emergency medicine provider opinions regarding the importance of, and to ascertain existing processes by which practitioners maintain, the following critical procedural skills: oral endotracheal intubation, intraosseous line placement, pharmacologic and electrical cardioversion, tube thoracostomy, and defibrillation. METHODS: A customized survey was administered to all members of the Listserv for the American Academy of Pediatrics Section on Emergency Medicine. Perceived importance of maintaining critical pediatric procedural skills was measured using a 5-point Likert-type scale. Secondary outcomes included presence and type of mandatory training, availability of on-site backup, and perceived barriers to maintenance of skills. RESULTS: Two hundred sixty-two members (25%) responded representing 106 different institutions, 70% of freestanding children's hospitals that received graduate medical education payments in 2014, and 68% of pediatric emergency medicine fellowship programs. More than 90% of respondents felt it was either very or extremely important to maintain competency for 5 of the 6 critical procedures, but no more than 49% of respondents felt that clinical care alone provided opportunity to maintain skills. The proportion of respondents indicating no mandatory training for each critical procedural skill was as follows: oral endotracheal intubation (23%), intraosseous line placement (30%), pharmacologic cardioversion (32%), electrical cardioversion (32%), tube thoracostomy (40%), and defibrillation (32%). CONCLUSIONS: Critical procedural skills are perceived by emergency providers who care for children as extremely important to maintain. Direct care of pediatric patients likely does not provide sufficient opportunity to maintain these skills. There are widespread deficiencies relating to mandatory maintenance of critical procedural skill training.

Toxicological Emergencies in the Resuscitation Area of a Pediatric Emergency Department: A 12-Month Review.

OBJECTIVE: Few studies of children with toxicological emergencies describe those undergoing acute resuscitation, and most describe exposures to single agents. We describe a 12-month sample of patients evaluated in the resuscitation area of a pediatric emergency department (ED) for a toxicological emergency. METHODS: We conducted a retrospective chart review of patients in a high-volume, academic pediatric ED. We identified patients evaluated in the ED resuscitation area for toxicological exposure and conducted structured chart reviews to collect relevant data. For all variables of interest, we calculated standard descriptive statistics. RESULTS: Of 2999 patients evaluated in the resuscitation area through 12 months (March 2009 to April 2010), we identified 80 (2.7%) whose primary ED diagnosis was toxicological. The mean age was 11.4 years. Eighty-six percent of patients were triaged to the resuscitation area for significantly altered mental status. The most frequent single exposures were ethanol (25%), clonidine (10%), and acetaminophen (5%). At least 1 laboratory test was performed for almost all patients (97%). Interventions performed in the resuscitation area included intravenous access placement (97%), activated charcoal (20%), naloxone (19%), and endotracheal intubation (12%). Eighty-two percent of patients were admitted to the hospital; 37% to the intensive care unit. No patients studied in this sample died and most received only supportive care. CONCLUSIONS: In a high-volume pediatric ED, toxicological emergencies requiring acute resuscitation were rare. Ethanol and clonidine were the most frequent single exposures. Most patients received diagnostic testing and were admitted. Further studies are needed to describe regional differences in pediatric toxicological emergencies.

Use of Oral Contrast for Abdominal Computed Tomography in Children With Blunt Torso Trauma.

STUDY OBJECTIVE: We compare test characteristics of abdominal computed tomography (CT) with and without oral contrast for identifying intra-abdominal injuries. METHODS: This was a planned subanalysis of a prospective, multicenter study of children (<18 years) with blunt torso trauma. Children imaged in the emergency department with abdominal CT using intravenous contrast were eligible. Oral contrast use was based on the participating centers' guidelines and discretions. Clinical courses were followed to identify patients with intra-abdominal injuries. Abdominal CTs were considered positive for intra-abdominal injury if a specific intra-abdominal injury was identified and considered abnormal if any findings suggestive of intra-abdominal injury were identified on the CT. RESULTS: A total of 12,044 patients were enrolled, with 5,276 undergoing abdominal CT with intravenous contrast. Of the 4,987 CTs (95%) with documented use or nonuse of oral contrast, 1,010 (20%) were with and 3,977 (80%) were without oral contrast; 686 patients (14%) had intra-abdominal injuries, including 127 CTs (19%) with and 559 (81%) without oral contrast. The sensitivity in the detection of any intra-abdominal injury in the oral contrast versus no oral contrast groups was sensitivitycontrast 99.2% (95% confidence interval [CI] 95.7% to 100.0%) versus sensitivityno contrast 97.7% (95% CI 96.1% to 98.8%), difference 1.5% (95% CI -0.4% to 3.5%). The specificity of the oral contrast versus no oral contrast groups was specificitycontrast 84.7% (95% CI 82.2% to 87.0%) versus specificityno contrast 80.8% (95% CI 79.4% to 82.1%), difference 4.0% (95% CI 1.3% to 6.7%). CONCLUSION: Oral contrast is still used in a substantial portion of children undergoing abdominal CT after blunt torso trauma. With the exception of a slightly better specificity, test characteristics for detecting intra-abdominal injury were similar between CT with and without oral contrast.