Use of a SimBox, a Video-Augmented, Newborn Resuscitation Simulation for Prehospital Providers to Measure Clinical Performance and Educational Experience.

OBJECTIVES: Few studies have described the current clinical practices, adherence to guidelines, and outcomes of newborn resuscitations attended by emergency medical services (EMS). SimBox, a novel, video-augmented simulation, was used to describe the adherence of prehospital providers to Neonatal Resuscitation Program guidelines, to measure satisfaction with the simulation intervention, and to describe the self-reported improvement in knowledge, skills, and attitudes after the simulation. METHODS: A prospective observational cohort study of EMS providers was designed and conducted using SimBox, an open-access simulation platform, and facilitated by EMS educators. Clinical performance measures were collected using a five-item checklist. Simulation satisfaction measures were collected through net promoter scores. Learners' demographics, and self-reported knowledge, skills, and attitudes were measured using a retrospective survey of 25 questions. RESULTS: In total, 33 facilitator and 55 learner surveys were collected across Connecticut, Colorado, and Alaska between July 2021 and September 2022. At least one deviation from clinical guidelines occurred in 22/30 (73.3%) of the sessions, with 10/30 (33.3%) teams inappropriately performing chest compressions, 5/31 (16.1%) teams not warming, drying, stimulating, and suctioning the newborn, and 7/31 (22.6%) teams not performing positive pressure ventilation correctly. Lastly, 10/30 (33.3%) teams administered an incorrect dose of dextrose-containing fluids. Very high levels of satisfaction were reported with net promoter scores of 97 and 82 out of 100 for the facilitator and learner surveys, respectively. Finally, all 55/55 (100%) of the learners strongly or somewhat agreed that the simulation improved their knowledge, teamwork, communication, and psychomotor skills. CONCLUSIONS: In this cohort of prehospital providers, clinical management decisions during a newborn resuscitation simulation often deviated from the gold-standard, newborn resuscitation guidelines. Free, online, open-access simulation resources like SimBox can be used to identify and measure practice deviations from standardized resuscitation protocols in the prehospital setting.

Competencies of junior medical doctors in managing seriously ill and injured children: time to rethink our current training approach?

BACKGROUND: The correct treatment of very ill and injured children is critical, yet little is known about the competencies of South African (SA) junior doctors in managing these children. METHODS: This survey documents SA junior doctors' reported resuscitation training opportunities, experience, skills and knowledge. RESULTS: A total of 118 doctors (interns, medical officers and registrars) from paediatric departments affiliated with 7 medical schools, participated. Resuscitations were not rare events with 71% (84/118) reporting participation in >10 resuscitations during the preceding 2 years. Yet a third of doctors have not attended an accredited resuscitation training course within the last 2 years; 34% (12/35) medical officers and 29% (18/63) registrars, respectively, with 42% (49/118) of all participants never receiving any formal resuscitation training during employment. Feedback on performance is not standard practice with only 8% (10/118) reporting consistent debriefing after a resuscitation. Although 72% (85/118) reported their resuscitation knowledge as adequate, 56% (66/118) passed the knowledge test. CONCLUSION: This study recognized missed learning opportunities in junior doctors' training, assessment, debriefing and knowledge which may adversely affect the quality of care in managing paediatric emergencies. This has implications for departmental and post-graduate training programmes.

The correct treatment of very ill and injured children is critical, yet little is known about the competencies of South African (SA) junior doctors in managing these children. This study surveyed SA junior doctors' reported life-saving training opportunities, experience, skills and knowledge, with 118 doctors working at hospitals affiliated with 7 medical schools participating. Resuscitations were not rare events with 71% (84/118) reporting participation in >10 resuscitations during the preceding 2 years. Yet about one-third of medical officers (34%; 12/35) and paediatric registrars (29%; 18/63) have not attended an accredited resuscitation training course within the last 2 years, and 42% (49/118) of all participants reportedly did not receive any formal resuscitation training during employment. Feedback on performance after resuscitations is not standard practice and only 8% (10/118) reported consistent debriefing afterwards. Although 72% (85/118) reported their resuscitation knowledge as adequate, only 56% (66/118) passed the knowledge test. Inadequate knowledge of the treatment of very ill and injured children may adversely affect the quality of care provided in paediatric emergencies. There appear to be several missed formal and informal learning opportunities which may improve both quality of care and doctor wellbeing. This has implications for training programmes.

[Consideration of parents when caring for children in acute situations]. / La considération des parents lors de la prise en charge de l'enfant en situation aiguë.

A child's illness and hospitalization have repercussions for parents and siblings. Caregivers have a duty not only to care for their young patient, but also to welcome the family, whose dynamics are disrupted. Beyond the somatic and technical aspects, the challenge lies in caring for each member of the family, particularly the parents. The complexities of supporting parents when dealing with a child in an emergency situation will be explored through the testimony of a nursery nurse.

Trauma-informed and family-centered paediatric resuscitation: Defining domains and practices.

Aim: For paediatric patients and families, resuscitation can be an extremely stressful experience with significant medical and psychological consequences. Psychological sequelae may be reduced when healthcare teams apply patient- and family-centered care and trauma-informed care, yet there are few specific instructions for effective family-centered or trauma-informed behaviours that are observable and teachable. We aimed to develop a framework and tools to address this gap. Methods: We reviewed relevant policy statements, guidelines, and research to define core domains of family-centered and trauma-informed care, and identified observable evidence-based practices in each domain. We refined this list of practices via review of provider/team behaviours in simulated paediatric resuscitation scenarios, then developed and piloted an observational checklist. Results: Six domains were identified: (1) Sharing information with patient and family; (2) Promoting family involvement in care and decisions; (3) Addressing family needs and distress; (4) Addressing child distress; (5) Promoting effective emotional support for child; (6) Practicing developmental and cultural competence. A 71-item observational checklist assessing these domains was feasible for use during video review of paediatric resuscitation. Conclusion: This framework can guide future research and provide tools for training and implementation efforts to improve patient outcomes through patient- and family-centered and trauma-informed care.

Novelties in the pediatric cardiopulmonary resuscitation recommendations and lines of development in Spain.

OBJECTIVES: To analyse the 2020 international and European recommendations for Paediatric cardiopulmonary resuscitation (CPR), highlighting the most important changes and propose lines of development in Spain. METHODS: Critical analysis of the paediatric cardiopulmonary resuscitation recommendations of the European Resuscitation Council. RESULTS: The most relevant changes in the CPR recommendations for 2020 are in basic CPR the possibility of activating the emergency system after performing the five rescue ventilations with the mobile phone on loudspeaker, and in advanced CPR, bag ventilation between two rescuers if possible, the administration of epinephrine as soon as a vascular access is obtained, the increase in the respiratory rate in intubated children between 10 and 25 bpm according to their age and the importance of controlling the quality and coordination of CPR. In CPR training, the importance of training non-technical skills such as teamwork, leadership and communication and frequent training to reinforce and maintain competencies is highlighted. CONCLUSIONS: It is essential that training in Paediatric CPR in Spain follows the same recommendations and is carried out with a common methodology, adapted to the characteristics of health care and the needs of the students. The Spanish Paediatric and Neonatal Cardiopulmonary Resuscitation Group should coordinate this process, but the active participation of all paediatricians and health professionals who care for children is also essential.

Novedades en las recomendaciones de reanimación cardiopulmonar pediátrica y líneas de desarrollo en España / Novelties in the paediatric cardiopulmonary resuscitation recommendations and lines of development in Spain

Objetivos: Analizar las recomendaciones internacionales y europeas de reanimación cardiopulmonar (RCP) pediátrica del 2020, resaltar los cambios más importantes y plantear líneas de desarrollo en España. Métodos: Análisis crítico de las recomendaciones de RCP pediátrica del European Resuscitation Council. Resultados: Los cambios más relevantes en las recomendaciones de RCP del año 2020 son: en la RCP básica, la posibilidad de activar el sistema de emergencias tras realizar las 5 ventilaciones de rescate con el teléfono móvil en altavoz, y en la RCP avanzada, la ventilación con bolsa entre 2 reanimadores si es posible, la administración de adrenalina en cuanto se canaliza un acceso vascular en los ritmos no desfibrilables, el aumento de la frecuencia respiratoria en los niños intubados entre 10 y 25rpm de acuerdo a su edad y la importancia de controlar la calidad y coordinación de la RCP. En la formación en RCP se destaca la importancia de la formación de las habilidades no técnicas como el trabajo en equipo, liderazgo y la comunicación, y el entrenamiento frecuente para reforzar y mantener las competencias. Conclusiones: Es esencial que la formación en RCP pediátrica en España siga las mismas recomendaciones y se realice con una metodología común, adaptada a las características de la atención sanitaria y las necesidades de los alumnos. El Grupo Español de Reanimación Cardiopulmonar Pediátrica y Neonatal debe coordinar este proceso, pero es esencial la participación activa de todos los pediatras y profesionales sanitarios que atienden a los niños. (AU)

Objectives: To analyse the 2020 international and European recommendations for paediatric cardiopulmonary resuscitation (CPR), highlight the most important changes and propose lines of development in Spain. Methods: Critical analysis of the paediatric cardiopulmonary resuscitation recommendations of the European Resuscitation Council. Results: The most relevant changes in the CPR recommendations for 2020 are in basic CPR the possibility of activating the emergency system after performing the five rescue ventilations with the mobile phone on loudspeaker, and in advanced CPR, bag ventilation between two rescuers if possible, the administration of epinephrine as soon as a vascular access is obtained, the increase in the respiratory rate in intubated children between 10 and 25bpm according to their age and the importance of controlling the quality and coordination of CPR. In CPR training, the importance of training non-technical skills such as teamwork, leadership and communication and frequent training to reinforce and maintain competencies is highlighted. Conclusions: It is essential that training in paediatric CPR in Spain follows the same recommendations and is carried out with a common methodology, adapted to the characteristics of health care and the needs of the students. The Spanish Paediatric and Neonatal Cardiopulmonary Resuscitation Group should coordinate this process, but the active participation of all paediatricians and health professionals who care for children is also essential. (AU)

Associations of initial haemodynamic profiles and neurological outcomes in children with traumatic brain injury: a secondary analysis.

INTRODUCTION: Initial low systolic blood pressure (SBP) in paediatric traumatic brain injury (TBI) is associated with mortality. There is limited literature on how other haemodynamic parameters including heart rate (HR); diastolic blood pressure (DBP); mean arterial pressure (MAP); and shock index, paediatric age-adjusted (SIPA) affect not only mortality but also long-term neurological outcomes in paediatric TBI. We aimed to analyse the associations of these haemodynamic variables (HR, SBP, MAP, DBP and SIPA) with mortality and long-term neurological outcomes in isolated moderate-to-severe paediatric TBI. METHODS: This was a secondary analysis of our primary study that analysed the association of TBI-associated coagulopathy with mortality and neurological outcome in isolated, moderate-to-severe paediatric head injury. A trauma registry-based, retrospective study of children <18 years old who presented to the emergency department with isolated, moderate-to-severe TBI from January 2010 to December 2016 was conducted. The association between initial haemodynamic variables and less favourable outcomes using Glasgow Outcome Scale-Extended Paediatric) at 6 months post injury was analysed using logistic regression. RESULTS: Among 152 children analysed, initial systolic and diastolic hypotension (<5th percentile) (OR) for SBP 11.40, 95% CI 3.60 to 36.05, p<0.001; OR for DBP 15.75, 95% CI 3.09 to 80.21, p<0.001) and Glasgow Coma Scale scores <8 (OR 14.50, 95% CI 3.65 to 57.55, p<0.001) were associated with 'moderate-to-severe neurological disabilities', 'vegetative state' and 'death'. After adjusting for confounders, only SBP was significant (adjusted OR 5.68, 95% CI 1.40 to 23.08, p=0.015). CONCLUSIONS: Initial systolic hypotension was independently associated with mortality and moderate-to-severe neurological deficits at 6 months post injury. Further work is required to understand if early correction of hypotension will improve long-term outcomes.

[Novelties in the paediatric cardiopulmonary resuscitation recommendations and lines of development in Spain]. / Novedades en las recomendaciones de reanimación cardiopulmonar pediátrica y líneas de desarrollo en España.

OBJECTIVES: To analyse the 2020 international and European recommendations for paediatric cardiopulmonary resuscitation (CPR), highlight the most important changes and propose lines of development in Spain. METHODS: Critical analysis of the paediatric cardiopulmonary resuscitation recommendations of the European Resuscitation Council. RESULTS: The most relevant changes in the CPR recommendations for 2020 are in basic CPR the possibility of activating the emergency system after performing the five rescue ventilations with the mobile phone on loudspeaker, and in advanced CPR, bag ventilation between two rescuers if possible, the administration of epinephrine as soon as a vascular access is obtained, the increase in the respiratory rate in intubated children between 10 and 25bpm according to their age and the importance of controlling the quality and coordination of CPR. In CPR training, the importance of training non-technical skills such as teamwork, leadership and communication and frequent training to reinforce and maintain competencies is highlighted. CONCLUSIONS: It is essential that training in paediatric CPR in Spain follows the same recommendations and is carried out with a common methodology, adapted to the characteristics of health care and the needs of the students. The Spanish Paediatric and Neonatal Cardiopulmonary Resuscitation Group should coordinate this process, but the active participation of all paediatricians and health professionals who care for children is also essential.

Walking the line: balancing performance barriers and facilitators in an augmented reality mobile application for paediatric code cart training.

An augmented reality (AR) mobile smartphone application was developed for clinicians to improve their knowledge about the contents and organisation of a standardised paediatric code cart, an important tool in safe, effective paediatric resuscitations. This study used focus groups and interviews with 22 clinicians to identify work system barriers and facilitators to use of the application. We identified twelve dimensions of barriers and facilitators: convenience, device ownership, device size and type, gamification, interface design, movement/physical space, perception of others, spatial presence, technological experience, technological glitches, workload, and the perception and attitude towards code cart and resuscitation. These dimensions can guide improvement efforts, e.g. redesigning the interface, providing non-AR modes, improving the tutorial. We propose nine principles to guide the design of other digital health technologies incorporating AR. In particular, the workload demands created by using AR must be considered and accounted for in the design and implementation of such technologies. Practitioner summary: Augmented reality (AR) may prepare workers for situations that do not occur frequently. This study investigates barriers and facilitators to using an AR mobile smartphone application developed to improve clinician knowledge about code carts, leading to improvements to the application and principles to guide the design of other AR-based technologies.

Working with estimation-formulas to predict nasopharyngeal airway insertion depth in children: Looking at magnetic resonance images - A prospective observational study (WEND:LI-Study).

OBJECTIVE: To determine the accuracy of the recently proposed landmark-method 'nostril-to-tragus minus 10 mm' and compare with ERC-recommended distances for nasopharyngeal airway length sizing in children. METHOD: We conducted a prospective observational study in sedated children < 12 years. Nasopharyngeal airways were inserted following 'nostril-to-tragus minus 10 mm'. Primary outcome was the rate of nasopharyngeal airway tips between soft palate and epiglottis on magnetic resonance imaging (MRI) indicated for medical reasons. An optimal placement was defined when the tip lied within 25-75% of the total soft palate-to-epiglottis distance. Between 0-100% of this distance, placement was still considered acceptable, below 0% too proximal or above 100% too distal. Secondary outcomes were the rate of adverse events, the qualitative positions of airway tips, and the comparison of ́nostril-to-tragus minus 10 mm with the ERC-recommended distances 'nostril-to-angle of the mandible' and 'nostril-to-tragus' with objective MRI measurements. RESULTS: We analysed 92 patients with a mean age of 4.3 years. Nasopharyngeal airways were optimally placed in 37.0% (8.7% too proximal-77.2% acceptable-14.1% too distal). Three qualitative malpositions, but no airway-associated adverse event occurred. Objective measurements on MRI revealed the probability of 40.2% optimally placed nasopharyngeal airways (5.4%-67.4%-27.2%) for 'nostril-to-tragus minus 10 mm', 38.0% (17.4%-58.7%-23.9%) for 'nostril-to-mandible' and 13.0% (0%-28.3%-71.7%) for 'nostril-to-tragus', respectively. CONCLUSION: No landmark-method predicted nasopharyngeal airway position reliably. 'Nostril-to-tragus minus 10 mm' seems the least inaccurate one and could be a valuable approximation until another estimation-formula proves more accurate. During insertion, careful clinical evaluation of airway patency is crucial. REGISTERED CLINICAL TRIAL: German Clinical Trials Register; DRKS00021007.

[Hospital management of the child victim of non-accidental head injury]. / Prise en charge hospitalière de l'enfant victime de traumatisme crânien non accidentel.

The baby victim of a shock is not always diagnosed at the time of his first visit to the emergency room. The recommendation for good practice in situations of shaken baby syndrome, published in July 2017 by the French National Authority for Health, helps in the diagnosis and management of these infants by health care providers. When this diagnosis is made, the baby's care pathway is generally long and punctuated by multiple examinations.

["In many cases of shaken babies, there were no difficulties in parent-child interactions"]. / « Dans nombre de cas de bébés secoués, il n'y a aucune difficulté dans les interactions parent-enfant ¼.

The experiences of carers and families of children with suspected shaken baby syndrome change throughout the care process. Elsa Girerd-Potin, a paediatric intensive care nurse for the past seven years at the Couple and Child Hospital in La Tronche, Isère, has followed some of these families. She explains to us how the stay in the intensive care unit of infants suffering from shaken baby syndrome unfolds, while sharing the difficulties of positioning that she may experience with their parents.

Singapore Paediatric Resuscitation Guidelines 2021.

We present the 2021 Singapore Paediatric Resuscitation Guidelines. The International Liaison Committee on Resuscitation's Pediatric Taskforce Consensus Statements on Science and Treatment Recommendations, which was published in October 2020, and the updated resuscitation guidelines from the American Heart Association and European Resuscitation Council, were reviewed and discussed by the committee. These recommendations were derived after deliberation of peer-reviewed evidence updates on paediatric resuscitation and took into consideration the local setting and clinical practice.

Cluster cross-over randomised trial of paediatric airway management devices in the simulation lab and operating room among paramedic students.

OBJECTIVES: The objective of this study was to compare paediatric emergency airway management strategies in the simulation lab and operating room environments. METHODS: This was a two-part cluster cross-over randomised trial including simulation lab and operating room environments conducted between January 2017 and June 2018 in Portland, Oregon, USA. In simulated infant cardiac arrests, paramedic students placed an endotracheal tube, an i-gel or a laryngeal mask airway in random order. In the operating room, paramedic students placed a laryngeal mask airway or i-gel device in random order in sequential patients. The primary outcome for both portions of the study was time to ventilation. In the operating room portion, we also evaluated leak pressures and average initial tidal volumes. RESULTS: There were 58 paramedic students who participated in the simulation lab and 22 who participated in the operating room study. The mean time to airway placement in the simulation lab was 48.5 s for the i-gel, 68.9 s for the laryngeal mask and 129.5 s for the endotracheal tube. In the operating room, mean time to i-gel placement was 34.3 s with 45.2 s for the laryngeal mask. In multivariable analysis of the simulation study, the laryngeal mask and i-gel were significantly faster than the endotracheal tube, and the i-gel was faster than the laryngeal mask. In the operating room, there was no significant difference in time to placement, leak pressure and average volume of the first five breaths between the i-gel and laryngeal mask. CONCLUSIONS: We found that paramedic students were able to place supraglottic devices rapidly with high success rates in simulation lab and operating room environments. Supraglottic devices, particularly the i-gel, were rated as easy to use. The i-gel may be easiest to use since it lacks an inflable cuff and requires fewer steps to place.

Technical factors associated with first-pass success during endotracheal intubation in children: analysis of videolaryngoscopy recordings.

BACKGROUND: First-pass success (FPS) during intubation is associated with lower morbidity for paediatric patients. Using videolaryngoscopy (VL) recordings, we reviewed technical aspects of intubation, including factors associated with FPS in children. METHODS: We performed a retrospective study of intubation attempts performed using video-assisted laryngoscopy in a paediatric ED between January 2014 and December 2018. Data were abstracted from a quality assurance database, the electronic medical record and VL recordings. Our primary outcome was FPS. Intubation practices were analysed using descriptive statistics. Patient and procedural characteristics associated with FPS in univariate testing and clinical factors identified from the literature were included as covariates in a multivariable logistic regression. An exploratory analysis examined the relationship between position of the glottic opening on the video screen and FPS. RESULTS: Intubation was performed during 237 patient encounters, with 231 using video-assisted laryngoscopy. Data from complete video recordings were available for 129 attempts (59%); an additional 31 (13%) had partial recordings. Overall, 173 (73%) of first attempts were successful. Adjusting for patient age, placing the blade tip into the vallecula adjusted OR ((aOR) 7.2 (95% CI 1.7 to 30.1)) and obtaining a grade 1 or 2a-modified Cormack-Lehane glottic view on the videolaryngoscope screen (aOR 6.1 (95% CI 1.5 to 25.7) relative to grade 2b) were associated with increased FPS in the subset of patients with complete recordings. Exploratory analysis suggested that FPS is highest (81%) and duration is shortest when the glottic opening is located in the second quintile of the video screen. CONCLUSIONS: Placement of the blade tip into the vallecula regardless of blade type, sufficient glottic visualisation and locating the glottic opening within the second quintile of the video screen were associated with FPS using video-assisted laryngoscopy in the paediatric ED.

Roll up the tape? Laser and optical technologies improve paediatric weight estimation.

BACKGROUND: A robust estimation method is needed to prevent medication dosing and equipment sizing errors and improve time to administration during paediatric resuscitation. An electronic measurement with computer interface may improve accuracy and alleviate cognitive burden. This study evaluates the accuracy of two electronic height measurement methods, a laser and an optical device, and compares them to the Broselow™ Pediatric Emergency Tape (BT) for weight estimation. METHODS: We enrolled children ages 0-14 years from the emergency department of a free-standing, academic children's hospital. We obtained sex, body habitus, true weight, true height, BT colour, and experimental heights. We converted experimental height measurements into weight estimates using standardised growth charts. We calculated Pearson correlations between experimental and actual measurements and the percentages of weight estimates within 10% and 20% of true weights. We repeated analyses on a restricted cohort of children 0-11 years, the intended BT age range. RESULTS: We enrolled 198 children. The laser, optical device and BT weight estimates had strong positive correlations with the actual weight measurements with Pearson's correlation coefficients of 0.946, p < 0.0001, 0.965, p < 0.0001, and 0.825, p < 0.0001 respectively. 47.8% of optical weight estimates fell within 10% of actual weight and 80.6% within 20%, compared to 40.5% and 75.4% of laser estimates and 39.8% and 65.1% of BT estimates. CONCLUSION: Electronic-based weight estimates were more accurate than the BT. The accuracy of medication dosing and equipment sizing during paediatric resuscitation may be improved by integrating optical height-based weight estimates with electronic clinical decision support.

Factors affecting the course of resuscitation from cardiac arrest with pulseless electrical activity in children and adolescents.

BACKGROUND: Although in-hospital pediatric cardiac arrests and cardiopulmonary resuscitation occur >15,000/year in the US, few studies have assessed which factors affect the course of resuscitation in these patients. We investigated transitions from Pulseless Electrical Activity (PEA) to Ventricular Fibrillation/pulseless Ventricular Tachycardia (VF/pVT), Return of Spontaneous Circulation (ROSC) and recurrences from ROSC to PEA in children and adolescents with in-hospital cardiac arrest. METHODS: Episodes of cardiac arrest at the Children's Hospital of Philadelphia were prospectively registered. Defibrillators that recorded chest compression depth/rate and ventilation rate were applied. CPR variables, patient characteristics and etiology, and dynamic factors (e.g. the proportion of time spent in PEA or ROSC) were entered as time-varying covariates for the transition intensities under study. RESULTS: In 67 episodes of CPR in 59 patients (median age 15 years) with cardiac arrest, there were 52 transitions from PEA to ROSC, 22 transitions from PEA to VF/pVT, and 23 recurrences of PEA from ROSC. Except for a nearly significant effect of mean compression depth beyond a threshold of 5.7 cm, only dynamic factors that evolved during CPR favored a transition from PEA to ROSC. The latter included a lower proportion of PEA over the last 5 min and a higher proportion of ROSC over the last 5 min. Factors associated with PEA to VF/pVT development were age, weight, the proportion spent in VF/pVT or PEA the last 5 min, and the general transition intensity, while PEA recurrence from ROSC only depended on the general transition intensity. CONCLUSION: The clinical course during pediatric cardiac arrest was mainly influenced by dynamic factors associated with time in PEA and ROSC. Transitions from PEA to ROSC seemed to be favored by deeper compressions.

How and Why Paediatric Weight Estimation Systems Fail - A Body Composition Study.

Background Weight estimation during medical emergencies in children is essential, but fraught with errors if the wrong techniques are used, which may result in critical drug dosing errors. Individualised weight estimation is required to allow for accurate dosing in underweight and obese children in particular. This study was designed to evaluate the associations between weight estimations from different systems and body composition in order to establish how and why they may perform well or poorly. Methods A convenience sample of 332 children aged from one month to 16 years had weight estimations using four age-based formulas: the Broselow™ Pediatric Emergency Tape (Armstrong Medical Industries, Inc., Lincolnshire, IL), the Mercy Method, and the Pediatric Advanced Weight Prediction in the Emergency Room, Extra-large/Extra-long Tape (PAWPER XL) Tape. They also had an assessment of body composition using dual x-ray absorptiometry (DXA). The weight estimates were compared against total body weight (TBW), calculated ideal body weight (IBW), and DXA-measured fat-free mass (FFM). Analyses of associations between age, length, weight estimation outcomes, and body composition were performed. Results Age-based formulas were very inaccurate because of the erratic relationship between age and body composition. The Broselow tape estimated IBW well in obese children because of the strong relationship between length and fat-free mass. It predicted TBW poorly in underweight and obese children, however, because of the poor relationship between length and fat mass. The Mercy Method's performance was unrelated to body composition, but estimated TBW reasonably well and could not predict IBW or FFM. The PAWPER XL Tape's performance was the most closely associated with body composition and, therefore, achieved an acceptable accuracy for estimations of TBW, IBW, and FFM. Conclusions Of the systems evaluated, the PAWPER XL Tape has the best association with body composition and the most accurate estimations of TBW, IBW, and FFM.

Randomised simulation trial found an association between rescuers' height and weight and chest compression quality during paediatric resuscitation.

AIM: Our aim was to examine the relationship between rescuers' anthropometric data and chest compression quality during paediatric resuscitation training. METHODS: This study focused on 224 medical students (53% women) who performed 2 minutes of paediatric resuscitation at the Medical University of Vienna, Austria: 116 on a baby manikin and 108 on an adolescent manikin. Skill Reporter software measured chest compression quality by recording compression depth, frequency, hand position and complete recoil. The participants' height, weight and body mass index (BMI) were recorded. RESULTS: Participants with a lower BMI achieved higher total chest compression scores on both the baby and adolescent manikins than participants with a higher BMI. The latter were more likely to exceed the correct compression depth and not achieve complete chest recoil in the adolescent manikin. When it came to the baby manikin, the female participants achieved better chest recoil and the males achieved a higher number of compressions at the correct rate. Males also achieved better chest recoil with the adolescent manikins. Being tall only correlated with incomplete recoil in the adolescent manikin. CONCLUSION: The results indicate that anthropometric variables were associated with chest compression quality in paediatric patients and should be considered by future education programmes.