Variability in quality of chest compressions provided during simulated cardiac arrest across nine pediatric institutions

Rapid cycle deliberate practice versus postsimulation debriefing in pediatric cardiopulmonary resuscitation training: a randomized controlled study

OBJECTIVE

Simulation plays an important role in cardiopulmonary resuscitation training. Comparing postsimulation debriefing with rapid cycle deliberate practice could help determine the best simulation strategy for pediatric cardiopulmonary resuscitation training among pediatric residents.

METHODS

This is a single-blind, prospective, randomized controlled study. First- and second year pediatric residents were enrolled and randomized into two groups (1:1 ratio): rapid cycle deliberate practice group (intervention) or postsimulation debriefing group (control). They participated in two rounds of simulated pediatric cardiopulmonary arrest to assess the simulated pediatric cardiopulmonary resuscitation performance gain (round 1) and retention after a 5-6 week washout period (round 2). Scenarios were video-recorded and analyzed by blinded evaluators. The main outcome was the time to initiation of chest compressions. Secondary outcomes included time to recognize a cardiopulmonary arrest, time to recognize a shockable rhythm, time to defibrillation, time to initiation of chest compressions after defibrillation, and chest compression fraction.

RESULTS

Sixteen groups participated in the first round and fifteen groups in the second one. Time to intiation of chest compressions decreased from preintervention scenario to the round 1 testing scenario and increased from round 1 to round 2 testing scenario. However, no interaction effects nor group effects were observed (p=0.885 and p=0.329, respectively). There were no significant differences between the two groups regarding the secondary outcomes.

CONCLUSION

Despite an overall improvement in simulated pediatric cardiopulmonary resuscitation performance, we did not observe significant differences between the two groups regarding the analyzed variables. The decline in simulated pediatric cardiopulmonary resuscitation performance after 5 weeks suggests the need for shorter time intervals between training sessions.

Interdisciplinary training program for pediatric cardiorespiratory arrest using rapid cycle deliberate practice: A descriptive cross-sectional study

BACKGROUND

cardiorespiratory arrest (CRA) is a severe public health concern, and clinical simulation has proven to be a beneficial educational strategy for training on this topic.

OBJECTIVE

To describe the implementation of a program for pediatric cardiac arrest care using rapid-cycle deliberate practice (RCDP), the quality of the technique employed, and participants' opinions on the methodology.

DESIGN AND SETTING

This descriptive cross-sectional study of pre- and post-performance training in cardiopul monary resuscitation (CPR) techniques and reaction evaluation was conducted in a hospital in São Paulo.

METHODS

Multidisciplinary groups performed pediatric resuscitation in a simulated scenario with RCDP mediated by a facilitator. The study sample included professionals working in patient care. During the simulation, the participants were evaluated for their compliance with the CRA care algorithm. Further, their execution of chest compressions was assessed pre- and post-intervention.

RESULTS

In total, 302 professionals were trained in this study. The overall quality of CPR measured pre-intervention was inadequate, and only 26% had adequate technique proficiency, whereas it was 91% (P < 0.01) post-intervention. Of the participants, 95.7% responded to the final evaluation and provided positive comments on the method and their satisfaction with the novel simulation. Of these, 88% considered that repetition of the technique used was more effective than traditional simulation.

CONCLUSIONS

The RCDP is effective for training multidisciplinary teams in pediatric CPR, with an emphasis on the quality of chest compressions. However, further studies are necessary to explore whether this trend translates to differential performances in practical settings.

Data-informed debriefing for cardiopulmonary arrest: A randomized controlled trial

Aim

To determine if data-informed debriefing, compared to a traditional debriefing, improves the process of care provided by healthcare teams during a simulated pediatric cardiac arrest.

Methods

We conducted a prospective, randomized trial. Participants were randomized to a traditional debriefing or a data-informed debriefing supported by a debriefing tool. Participant teams managed a 10-minute cardiac arrest simulation case, followed by a debriefing (i.e. traditional or data-informed), and then a second cardiac arrest case. The primary outcome was the percentage of overall excellent CPR. The secondary outcomes were compliance with AHA guidelines for depth and rate, chest compression (CC) fraction, peri-shock pause duration, and time to critical interventions.

Results

A total of 21 teams (84 participants) were enrolled, with data from 20 teams (80 participants) analyzed. The data-informed debriefing group was significantly better in percentage of overall excellent CPR (control vs intervention: 53.8% vs 78.7%; MD 24.9%, 95%CI: 5.4 to 44.4%, p = 0.02), guideline-compliant depth (control vs. intervention: 60.4% vs 85.8%, MD 25.4%, 95%CI: 5.5 to 45.3%, p = 0.02), CC fraction (control vs intervention: 88.6% vs 92.6, MD 4.0%, 95%CI: 0.5 to 7.4%, p = 0.03), and peri-shock pause duration (control vs intervention: 5.8 s vs 3.7 s, MD -2.1 s, 95%CI: -3.5 to -0.8 s, p = 0.004) compared to the control group. There was no significant difference in time to critical interventions between groups.

Conclusion

When compared with traditional debriefing, data-informed debriefing improves CPR quality and reduces pauses in CPR during simulated cardiac arrest, with no improvement in time to critical interventions.

A Decade Later-Progress and Next Steps for Pediatric Simulation Research

SUMMARY STATEMENT

A decade ago, at the time of formation of the International Network for Pediatric Simulation-based Innovation, Research, and Education, the group embarked on a consensus building exercise. The goal was to forecast the facilitators and barriers to growth and maturity of science in the field of pediatric simulation-based research. This exercise produced 6 domains critical to progress in the field: (1) prioritization, (2) research methodology and outcomes, (3) academic collaboration, (4) integration/implementation/sustainability, (5) technology, and (6) resources/support/advocacy. This article reflects on and summarizes a decade of progress in the field of pediatric simulation research and suggests next steps in each domain as we look forward, including lessons learned by our collaborative grass roots network that can be used to accelerate research efforts in other domains within healthcare simulation science.

The impact of cognitive aids on resuscitation performance in in-hospital cardiac arrest scenarios: a systematic review and meta-analysis

Different cognitive aids have been recently developed to support the management of cardiac arrest, however, their effectiveness remains barely investigated. We aimed to assess whether clinicians using any cognitive aids compared to no or alternative cognitive aids for in-hospital cardiac arrest (IHCA) scenarios achieve improved resuscitation performance. PubMed, EMBASE, the Cochrane Library, CINAHL and ClinicalTrials.gov were systematically searched to identify studies comparing the management of adult/paediatric IHCA simulated scenarios by health professionals using different or no cognitive aids. Our primary outcomes were adherence to guideline recommendations (overall team performance) and time to critical resuscitation actions. Random-effects model meta-analyses were performed. Of the 4.830 screened studies, 16 (14 adult, 2 paediatric) met inclusion criteria. Meta-analyses of eight eligible adult studies indicated that the use of electronic/paper-based cognitive aids, in comparison with no aid, was significantly associated with better overall resuscitation performance [standard mean difference (SMD) 1.16; 95% confidence interval (CI) 0.64; 1.69; I² = 79%]. Meta-analyses of the two paediatric studies, showed non-significant improvement of critical actions for resuscitation (adherence to guideline recommended sequence of actions, time to defibrillation, rate of errors in defibrillation, time to start chest compressions), except for significant shorter time to amiodarone administration (SMD - 0.78; 95% CI - 1.39; - 0.18; I² = 0). To conclude, the use of cognitive aids appears to have benefits in improving the management of simulated adult IHCA scenarios, with potential positive impact on clinical practice. Further paediatric studies are necessary to better assess the impact of cognitive aids on the management of IHCA scenarios.

PediAppRREST: effectiveness of an interactive cognitive support tablet app in reducing deviations from guidelines in the management of paediatric cardiac arrest: protocol for a simulation-based randomised controlled trial

INTRODUCTION

Paediatric cardiac arrest (PCA), despite its low incidence, has a high mortality. Its management is complex and deviations from guideline recommendations occur frequently. We developed a new interactive tablet app, named PediAppRREST, to support the management of PCA. The app received a good usability evaluation in a previous pilot trial. The aim of the study is to evaluate the effectiveness of the PediAppRREST app in reducing deviations from guideline recommendations in PCA management.

METHODS AND ANALYSIS

This is a multicentre, simulation-based, randomised controlled, three-parallel-arm study. Participants are residents in Paediatric, Emergency Medicine, and Anaesthesiology programmes in Italy. All 105 teams (315 participants) manage the same scenario of in-hospital PCA. Teams are randomised by the study statistician into one of three study arms for the management of the PCA scenario: (1) an intervention group using the PediAppRREST app or (2) a control group Paediatric Advanced Life Support (CtrlPALS+) using the PALS pocket reference card; or (3) a control group (CtrlPALS-) not allowed to use any PALS-related cognitive aid. The primary outcome of the study is the number of deviations (delays and errors) in PCA management from PALS guideline recommendations, according to a novel checklist, named c-DEV15plus. The c-DEV15plus scores will be compared between groups with a one-way analysis of variance model, followed by the Tukey-Kramer multiple comparisons adjustment procedure in case of statistical significance.

ETHICS AND DISSEMINATION

The Ethics Committee of the University Hospital of Padova, coordinating centre of the trial, deemed the project to be a negligible risk study and approved it through an expedited review process. The results of the study will be disseminated in peer-reviewed journals, and at national and international scientific conferences. Based on the study results, the PediAppRREST app will be further refined and will be available for download by institutions/healthcare professionals.

TRIAL REGISTRATION NUMBER

NCT04619498; Pre-results.

[Paediatric Life Support]

The European Resuscitation Council (ERC) Paediatric Life Support (PLS) guidelines are based on the 2020 International Consensus on Cardiopulmonary Resuscitation Science with Treatment Recommendations of the International Liaison Committee on Resuscitation (ILCOR). This section provides guidelines on the management of critically ill or injured infants, children and adolescents before, during and after respiratory/cardiac arrest.

European Resuscitation Council Guidelines 2021: Paediatric Life Support

These European Resuscitation Council Paediatric Life Support (PLS) guidelines, are based on the 2020 International Consensus on Cardiopulmonary Resuscitation Science with Treatment Recommendations. This section provides guidelines on the management of critically ill infants and children, before, during and after cardiac arrest.

Caregiver Characteristics Associated With Quality of Cardiac Compressions on an Adult Mannequin With Real-Time Visual Feedback: A Simulation-Based Multicenter Study

INTRODUCTION

Chest compression (CC) quality directly impacts cardiac arrest outcomes. Provider body type can influence the quality of cardiopulmonary resuscitation (CPR); however, the magnitude of this impact while using visual feedback is not well described. The aim of the study was to determine the association between provider anthropometric variables on fatigue and CC adherence to 2015 American Heart Association CPR while receiving visual feedback.

METHODS

This was a planned secondary analysis of healthcare professionals from multiple hospitals performing continuous CC for 2 minutes on an adult CPR mannequin with dynamic visual feedback. Main outcome measures include compression data (depth, rate, and lean) evaluated in 30-second epochs to explore performance fatigue. Multivariable models examined the relationship of provider anthropometrics to CC quality. Binomial mixed effects models were used to characterize fatigue by examining performance for 4 epochs.

RESULTS

Three hundred seventy-seven 2-minute CC episodes were analyzed. Extreme (low and high) BMI and weight are associated with poorer CC. Larger size (height, weight, and BMI) is associated with better depth but worse lean compliance. Performance fatigued for all providers for 2 minutes, but shorter, lighter weight, female participants had the greatest decline. On multivariable analysis, rate compliance did not deteriorate regardless of provider anthropometrics.

CONCLUSIONS

Anthropometrics impact provider CC quality. Despite visual feedback, variable effects are seen on compression depth, rate, recoil, and fatigue depending on the provider sex, weight, and BMI. The 2-minute interval for changing chest compressors should be reconsidered based on individual provider characteristics and risk of fatigue's impact on high-quality CPR.

Development and Usability of a Novel Interactive Tablet App (PediAppRREST) to Support the Management of Pediatric Cardiac Arrest: Pilot High-Fidelity Simulation-Based Study

Background

Pediatric cardiac arrest (PCA), although rare, is associated with high mortality. Deviations from international management guidelines are frequent and associated with poorer outcomes. Different strategies/devices have been developed to improve the management of cardiac arrest, including cognitive aids. However, there is very limited experience on the usefulness of interactive cognitive aids in the format of an app in PCA. No app has so far been tested for its usability and effectiveness in guiding the management of PCA.

Objective

To develop a new audiovisual interactive app for tablets, named PediAppRREST, to support the management of PCA and to test its usability in a high-fidelity simulation-based setting.

Methods

A research team at the University of Padova (Italy) and human–machine interface designers, as well as app developers, from an Italian company (RE:Lab S.r.l.) developed the app between March and October 2019, by applying an iterative design approach (ie, design–prototyping–evaluation iterative loops). In October–November 2019, a single-center nonrandomized controlled simulation–based pilot study was conducted including 48 pediatric residents divided into teams of 3. The same nonshockable PCA scenario was managed by 11 teams with and 5 without the app. The app user’s experience and interaction patterns were documented through video recording of scenarios, debriefing sessions, and questionnaires. App usability was evaluated with the User Experience Questionnaire (UEQ) (scores range from –3 to +3 for each scale) and open-ended questions, whereas participants’ workload was measured using the NASA Raw-Task Load Index (NASA RTLX).

Results

Users’ difficulties in interacting with the app during the simulations were identified using a structured framework. The app usability, in terms of mean UEQ scores, was as follows: attractiveness 1.71 (SD 1.43), perspicuity 1.75 (SD 0.88), efficiency 1.93 (SD 0.93), dependability 1.57 (SD 1.10), stimulation 1.60 (SD 1.33), and novelty 2.21 (SD 0.74). Team leaders’ perceived workload was comparable (P=.57) between the 2 groups; median NASA RTLX score was 67.5 (interquartile range [IQR] 65.0-81.7) for the control group and 66.7 (IQR 54.2-76.7) for the intervention group. A preliminary evaluation of the effectiveness of the app in reducing deviations from guidelines showed that median time to epinephrine administration was significantly longer in the group that used the app compared with the control group (254 seconds versus 165 seconds; P=.015).

Conclusions

The PediAppRREST app received a good usability evaluation and did not appear to increase team leaders’ workload. Based on the feedback collected from the participants and the preliminary results of the evaluation of its effects on the management of the simulated scenario, the app has been further refined. The effectiveness of the new version of the app in reducing deviations from guidelines recommendations in the management of PCA and its impact on time to critical actions will be evaluated in an upcoming multicenter simulation-based randomized controlled trial.

Consistency and variability in human performance during simulate infant CPR: a reliability study

Background

Positive outcomes from infant cardiac arrest depend on the effective delivery of resuscitation techniques, including good quality infant cardiopulmonary resuscitation (iCPR) However, it has been established that iCPR skills decay within weeks or months after training. It is not known if the change in performance should be considered true change or inconsistent performance. The aim of this study was to investigate consistency and variability in human performance during iCPR.

Methods

An experimental, prospective, observational study conducted within a university setting with 27 healthcare students (mean (SD) age 32.6 (11.6) years, 74.1% female). On completion of paediatric basic life support (BLS) training, participants performed three trials of 2-min iCPR on a modified infant manikin on two occasions (immediately after training and after 1 week), where performance data were captured. Main outcome measures were within-day and between-day repeated measures reliability estimates, determined using Intraclass Correlation Coefficients (ICCs), Standard Error of Measurement (SEM) and Minimal Detectable Change (MDC_95%) for chest compression rate, chest compression depth, residual leaning and duty cycle along with the conversion of these into quality indices according to international guidelines.

Results

A high degree of reliability was found for within-day and between-day for each variable with good to excellent ICCs and narrow confidence intervals. SEM values were low, demonstrating excellent consistency in repeated performance. Within-day MDC values were low for chest compression depth and chest compression rate (6 and 9%) and higher for duty cycle (15%) and residual leaning (22%). Between-day MDC values were low for chest compression depth and chest compression rate (3 and 7%) and higher for duty cycle (21%) and residual leaning (22%). Reliability reduced when metrics were transformed in quality indices.

Conclusion

iCPR skills are highly repeatable and consistent, demonstrating that changes in performance after training can be considered skill decay. However, when the metrics are transformed in quality indices, large changes are required to be confident of real change.

Effect of a Cardiopulmonary Resuscitation Coach on Workload During Pediatric Cardiopulmonary Arrest: A Multicenter, Simulation-Based Study

OBJECTIVES

Optimal cardiopulmonary resuscitation can improve pediatric outcomes but rarely is cardiopulmonary resuscitation performed perfectly despite numerous iterations of Basic and Pediatric Advanced Life Support. Cardiac arrests resuscitation events are complex, often chaotic environments with significant mental and physical workload for team members, especially team leaders. Our primary objective was to determine the impact of a cardiopulmonary resuscitation coach on cardiopulmonary resuscitation provider workload during simulated pediatric cardiac arrest.

DESIGN

Multicenter observational study.

SETTING

Four pediatric simulation centers.

SUBJECTS

Team leaders, cardiopulmonary resuscitation coach, and team members during an 18-minute pediatric resuscitation scenario.

INTERVENTIONS

National Aeronautics and Space Administration-Task Load Index.

MEASUREMENTS AND MAIN RESULTS

Forty-one teams (205 participants) were recruited with one team (five participants) excluded from analysis due to protocol violation. Demographic data revealed no significant differences between the groups in regard to age, experience, distribution of training (nurse, physician, and respiratory therapist). For most workload subscales, there were no significant differences between groups. However, cardiopulmonary resuscitation providers had a higher physical workload (89.3 vs 77.9; mean difference, -11.4; 95% CI, -17.6 to -5.1; p = 0.001) and a lower mental demand (40.6 vs 55.0; mean difference, 14.5; 95% CI, 4.0-24.9; p = 0.007) with a coach (intervention) than without (control). Both the team leader and coach had similarly high mental demand in the intervention group (75.0 vs 73.9; mean difference, 0.10; 95% CI, -0.88 to 1.09; p = 0.827). When comparing the cardiopulmonary resuscitation quality of providers with high workload (average score > 60) and low to medium workload (average score < 60), we found no significant difference between the two groups in percentage of guideline compliant cardiopulmonary resuscitation (42.5% vs 52.7%; mean difference, -10.2; 95% CI, -23.1 to 2.7; p = 0.118).

CONCLUSIONS

The addition of a cardiopulmonary resuscitation coach increases physical workload and decreases mental workload of cardiopulmonary resuscitation providers. There was no change in team leader workload.

Quality of chest compressions during pediatric resuscitation with 15:2 and 30:2 compressions-to-ventilation ratio in a simulated scenario

The main objetive was to compare 30:2 and 15:2 compression-to-ventilation ratio in two simulated pediatric cardiopulmonary resuscitation (CPR) models with single rescuer. The secondary aim was to analyze the errors or omissions made during resuscitation. A prospective randomized parallel controlled study comparing 15:2 and 30:2 ratio in two manikins (child and infant) was developed. The CPR was performed by volunteers who completed an basic CPR course. Each subject did 4 CPR sessions of 3 minutes each one. Depth and rate of chest compressions (CC) during resuscitation were measured using a Zoll Z series defibrillator. Visual assessment of resuscitation was performed by an external researcher. A total of 26 volunteers performed 104 CPR sessions. Between 54–62% and 44–53% of CC were performed with an optimal rate and depth, respectively, with no significant differences. No differences were found in depth or rate of CC between 15:2 and 30:2 compression-to-ventilation ratio with both manikins. In the assessment of compliance with the ERC CPR algorithm, 69.2–80.8% of the subjects made some errors or omissions during resuscitation, the most frequent was not asking for help and not giving rescue breaths. The conclusions were that a high percentage of CC were not performed with optimal depth and rate. Errors or omissions were frequently made by rescuers during resuscitation.

Using clinical simulation to study how to improve quality and safety in healthcare

Simulation can offer researchers access to events that can otherwise not be directly observed, and in a safe and controlled environment. How to use simulation for the study of how to improve the quality and safety of healthcare remains underexplored, however. We offer an overview of simulation-based research (SBR) in this context. Building on theory and examples, we show how SBR can be deployed and which study designs it may support. We discuss the challenges of simulation for healthcare improvement research and how they can be tackled. We conclude that using simulation in the study of healthcare improvement is a promising approach that could usefully complement established research methods.

Standardising communication to improve in-hospital cardiopulmonary resuscitation

AIM

Recommendations for standardised communication to reduce chest compression (CC) pauses are lacking. We aimed to achieve consensus and evaluate feasibility and efficacy using standardised communication during cardiopulmonary resuscitation (CPR) events.

METHODS

Modified Delphi consensus process to design standardised communication elements. Feasibility was pilot tested in 16 simulated CPR scenarios (8 scenarios with physician team leaders and 8 with chest compressors) randomized (1:1) to standardised [INTERVENTION] vs. closed-loop communication [CONTROL]. Adherence and efficacy (duration of CC pauses for defibrillation, intubation, rhythm check) was assessed by audiovisual recording. Mental demand and frustration were assessed by NASA task load index subscales.

RESULTS

Consensus elements for standardised communication included: 1) team preparation 15-30 s before CC interruption, 2) pre-interruption countdown synchronized with last 5 CCs, 3) specific action words for defibrillation, intubation, and interrupting/resuming CCs. Median (Q1,Q3) adherence to standardised phrases was 98% (80%,100%). Efficacy analysis showed a median [Q1,Q3] peri-shock pause of 5.1 s. [4.4; 5.8] vs. 7.5 s. [6.3; 8.8] seconds, p < 0.001, intubation pause of 3.8 s. [3.6; 5.0] vs. 6.9 s. [4.8; 10.1] seconds, p = 0.03, rhythm check pause of 4.2 [3.2,5.7] vs. 8.6 [5.0,10.5] seconds, p < 0.001, median frustration index of 10/100 [5,20] vs. 35/100 [25,50], p < 0.001, and median mental demand load of 55/100 [30,70] vs. 65/100 [50,85], p = 0.41 for standardised vs. closed loop communication.

CONCLUSION

This pilot study demonstrated feasibility of using consensus-based standardised communication that was associated with shorter CC pauses for defibrillation, intubation, and rhythm checks without increasing frustration index or mental demand compared to current best practice, closed loop communication.

Just-in-Time Training for Intraosseous Needle Placement and Defibrillator Use in a Pediatric Emergency Department

OBJECTIVES

Just-in-time training (JITT) is a method of simulation-based training where the training occurs within the clinical environment in a concise manner. Just-in-time training has shown effects at the learner, patient, and system-wide levels. We evaluated a JITT curriculum for the procedures of intraosseous (IO) needle placement and defibrillator use in a pediatric emergency department (ED) by comparing the trainees' comfort level in performing those procedures independently (Kirkpatrick level 2a) and trainees' knowledge of the procedures/equipment (Kirkpatrick level 2b) before and after the JITT.

METHODS

The study enrolled all fourth year medical students and residents (family medicine and pediatrics) who rotated through a children's hospital ED. The JITT curriculum included group discussion on storage locations of procedure equipment in the ED and clinical indications/contraindications followed by hands-on procedure training. One of 2 attending physicians facilitated the 10- to 20-minute JITT in the ED during their shifts. Trainees completed an anonymous survey to delineate medical training level, previous procedure experiences, procedure-related knowledge, and comfort level to perform the procedures independently. Identical surveys were completed before and after the JITT. The data were analyzed using percentage for categorical variables. For comparisons between pre-JITT and post-JITT survey data, χ tests or Fisher exact tests were used.

RESULTS

There were 65 surveys included (34 pre-JITT and 31 post-JITT surveys). The comfort level to perform procedures independently increased from pre-JITT 0% to post-JITT 48% (P < 0.001) for IO needle placement and from pre-JITT 3% to post-JITT 32% (P = 0.0016) for defibrillator use. The procedure-related knowledge also increased by ##greater than or equal to 50% post-JITT (P < 0.0001).

CONCLUSIONS

Our JITT curriculum significantly increased the comfort level of the trainees to perform IO needle insertion and defibrillator use independently. Procedure-related knowledge also increased. By increasing their comfort to perform these procedures independently, we aim to increase the likelihood that trainees can be competent contributing members of an acute medical response team in these respective roles.

Pauses in compressions during pediatric CPR: Opportunities for improving CPR quality

OBJECTIVE

Minimizing pauses in chest compressions during cardiopulmonary resuscitation (CPR) is recommended by the American Heart Association (AHA) and is associated with improved patient outcomes. We studied the quality of pediatric CPR performed in a tertiary pediatric emergency department (ED) with a focus on pauses in chest compressions.

METHODS

We conducted an observational study of CPR quality in two pediatric EDs using video review during pediatric cardiac arrest. Events were reviewed for AHA guideline adherence. Parameters of CPR performance were described according to individual compressor segment. Pauses in compressions were analyzed for duration and pause activities.

RESULTS

From a 30-month period, 81 cardiac arrests were analyzed, including 1003 individual compressor segments and 900 pauses. Median chest compression fraction was 91%, with a median pause duration of 4 s (IQR 2, 10); 22% of pauses were prolonged (>10 s). Pulse checks occurred in 23% of pauses; 62% were prolonged. Checking a single pulse site (p < 0.001) and having fingers ready pre-pause (p = 0. 001) were associated with significantly shorter pause duration. Pause duration was correlated with the number of pause tasks (r = 0.559, p < 0.001). "Coordinated pauses" (pulse check, rhythm check and compressor change) were rare (6%) and long in duration (19 s; IQR 11, 30).

CONCLUSIONS

Prolonged pauses in chest compressions occurred frequently during CPR and were associated with pulse checks and multiple simultaneous tasks. Checking a single pulse site with fingers ready on the pulse site pre-pause could decrease pause duration and improve CPR quality.

A randomized education trial of spaced versus massed instruction to improve acquisition and retention of paediatric resuscitation skills in emergency medical service (EMS) providers

AIM

Resuscitation courses are typically taught in a massed format despite existing evidence suggesting skill decay as soon as 3 months after training. Our study explored the impact of spaced versus massed instruction on acquisition and long-term retention of provider paediatric resuscitation skills.

METHODS

Providers were randomized to receive a paediatric resuscitation course in either a spaced (four weekly sessions) or massed format (two sequential days). Infant and adult chest compressions [CC], bag mask ventilation [BMV], and intraosseous insertion [IO] performance was measured using global rating scales.

RESULTS

Forty-eight participants completed the study protocol. Skill performance improved from baseline in both groups immediately following training. 3-months post-training the infant and adult CC scores remained significantly improved from baseline testing in both the massed and spaced groups; however, the infant BMV and IO scores remained significantly improved from baseline testing in the spaced: BMV (pre, 1.8 ± 0.7 vs post-3-months, 2.2 ± 7; P = 0.005) IO (pre, 2.5 ± 1 vs post-3-months, 3.1 ± 0.5; P = 0.04) but not in the massed groups: BMV (pre, 1.6 ± 0.5 vs post-3-months, 1.8 ± 0.5; P = 0.98) IO (pre, 2.6 ± 1.1 vs post-3-months, 2.7 ± 0.2; P = 0.98).

CONCLUSION

3-month retention of CC skills are similar regardless of training format; however, retention of other resuscitation skills may be better when taught in a spaced format.

Bedside chest compression skills: Performance and skills retention in in-hospital trained pediatric providers. A simulation study

PURPOSE

To assess the effects of a real-time feedback device and refresher sessions in acquiring and retaining chest compression skills.

METHODS

Healthcare providers participated in refresher sessions at 3-time points (blocks) over 1-year. At each block, chest compression (CC) skills were assessed on an infant and adult task trainer, in one 2-min trial without feedback (blinded), and up to three 2-min trials with feedback (unblinded). Skills retention over time was explored at three time lags: 1-3, 3-6, >6 months. Data collected included chest compression rate (100-120/min), depth (4 cm for infants and 5 cm for adults), and recoil between compressions.

RESULTS

Among 194 participants, achievement of excellent CC (≥90% of adequate compressions for all parameters) increased with feedback. Linear mixed models found significant (p < 0.05) improvement in rate, depth, and recoil. Performance between last unblinded trial in block 1 with the following blinded trial in block 2 significantly decayed in rate on both task trainers irrespective of time passed, while depth and recoil performance were maintained only for infants.

CONCLUSIONS

A real-time visual feedback device improved CC skills with better results in infants. Skills decayed over time despite two refresher sessions with feedback.

Effect of Emergency Department Mattress Compressibility on Chest Compression Depth Using a Standardized Cardiopulmonary Resuscitation Board, a Slider Transfer Board, and a Flat Spine Board: A Simulation-Based Study

INTRODUCTION

Cardiopulmonary resuscitation (CPR) performed on a mattress decreases effective chest compression depth. Using a CPR board partially attenuates mattress compressibility. We aimed to determine the effect of a CPR board, a slider transfer board, a CPR board with a slider transfer board, and a flat spine board on chest compression depth with a mannequin placed on an emergency department mattress.

METHODS

The study used a cross-over study design. The CPR-certified healthcare providers performed 2 minutes of compressions on a mannequin in five conditions, an emergency department mattress with: (a) no hard surface, (b) a CPR board, (c) a slider transfer board, (d) a CPR board and slider transfer board, and (e) a flat spine board. Compression depths were measured from two sources for each condition: (a) an internal device measuring sternum-to-spine compression and (b) an external device measuring sternum-to-spine compression plus mattress compression. The difference of the two measures (ie, depleted compression depth) was summarized and compared between conditions.

RESULTS

A total of 10,203 individual compressions from 10 participants were analyzed. The mean depleted compression depths (percentage depletion) secondary to mattress effect were the following: 23.6 mm (29.7%) on a mattress only, 13.7 mm (19.5%) on a CPR board, 16.9 mm (23.1%) on a slider transfer board, 11.9 mm (17.3%) on a slider transfer board plus backboard, and 10.3 mm (15.4%) on a flat spine board. The differences in percentage depletion across conditions were statistically significant.

CONCLUSION

Cardiopulmonary resuscitation providers should use a CPR board and slider transfer board or a flat spine board alone because these conditions are associated with the smallest amount of mattress compressibility.

Optimizing CPR performance with CPR coaching for pediatric cardiac arrest: A randomized simulation-based clinical trial

AIM

To determine if integrating a trained CPR Coach into resuscitation teams can improve CPR quality during simulated pediatric cardiopulmonary arrest (CPA).

METHODS

We conducted a multicenter, prospective, randomized trial. An 18-minute simulated CPA scenario was run for resuscitation teams comprised of CPR-certified professionals from four International Network for Simulation-based Pediatric Innovation, Research & Education (INSPIRE) institutions. Forty teams (200 participants) were randomized to having a trained CPR Coach vs. no CPR Coach. CPR Coaches were responsible for providing real-time verbal feedback of CPR performance to compressors. All teams utilized CPR feedback technology. We report the proportion of overall excellent CPR, proportion of chest compressions (CC) with depth 50-60 mm, the proportion of CC with rate 100-120 per minute, CC fraction, and pre-, post-, and peri-shock pause duration.

RESULTS

CPR coached teams compared with teams without a CPR Coach resulted in an absolute improvements in overall excellent CPR by 31.8% (95% CI, 17.7, 35.9; p < 0.001), mean CC depth compliance by 31.5% (15.7, 47.4; p < 0.001), mean CC depth by 4.6 mm (1.6, 7.5; p < 0.001), mean CC fraction by 5.4% (0.2, 10.6; p = 0.04), and mean pre-, post- and peri-shock pause duration by -2.7 s (-5.1, -0.4; p = 0.02), -1.0 s (-1.8, -0.2; p = 0.01); and -3.8 (-6.6, -1.0; p = 0.008), respectively. Changes in mean CC rate compliance and mean CC rate were not statistically significant.

CONCLUSIONS

In the presence of CPR feedback technology, the integration of a trained CPR coach into resuscitation teams enhances CPRquality metrics associated with improved survival outcomes from pediatric cardiac arrest.

Impact of a CPR feedback device on healthcare provider workload during simulated cardiac arrest

OBJECTIVE

We aimed to describe the differences in workload between team leaders and CPR providers during a simulated pediatric cardiac arrest, to evaluate the impact of a CPR feedback device on provider workload, and to describe the association between provider workload and the quality of CPR.

METHODS

We conducted secondary analysis of data from a randomized trial comparing CPR quality in teams with and without use of a real-time visual CPR feedback device [1]. Healthcare providers (team leaders and CPR providers) completed the NASA Task Load Index survey after participating in a simulated cardiac arrest scenario. The effect of provider roles and real-time feedback on workload were compared with independent t-tests.

RESULTS

Team leaders reported higher levels of mental demand, temporal demand, performance-related workload and frustration, while CPR providers reported comparatively higher physical workload. CPR providers reported significantly higher average workload (control 58.5 vs. feedback 62.3; p = 0.035) with real-time feedback provided compared to the group without feedback. Providers with high workloads (average score >60) had an increased percentage of time with guideline-compliant CPR depth versus those with low workloads (average score <60) (p = 0.034).

CONCLUSIONS

Healthcare providers reported high workloads during a simulated pediatric cardiac arrest. Physical and mental workloads differed based on provider role. CPR providers using a CPR feedback device reported increased average workloads. The quality of CPR improved with higher reported physical workloads.

Improving CPR quality with distributed practice and real-time feedback in pediatric healthcare providers - A randomized controlled trial

OBJECTIVES

Guideline compliant CPR is associated with improved survival for patients with cardiac arrest. Conventional Basic Life Support (BLS) training results in suboptimal CPR competency and skill retention. We aimed to compare the effectiveness of distributed CPR training with real-time feedback to conventional BLS training for CPR skills in pediatric healthcare providers.

METHODS

Healthcare providers were randomized into receiving annual BLS training (control) or distributed training with real-time feedback (intervention). The intervention group was asked to practice CPR for 2 min on mannequins while receiving real-time CPR feedback, at least once per month. Control group participants were not asked to practice CPR during the study period. Excellent CPR was defined as 90% guideline-compliance for depth, rate and recoil of chest compressions. CPR performance of participants was assessed (on infant and adult-sized mannequins) every 3 months for a duration of 12 months. CPR performance was compared between the 2 groups.

RESULTS

A total of 87 healthcare providers were included in the analyses (control n = 41, intervention n = 46). Baseline assessment showed no significant difference in CPR performance across the 2 groups. The intervention group has a significantly greater proportion of participants with excellent CPR compared with the control group on an adult sized mannequin (14.6% vs. 54.3%, p < 0.001) and infant-sized mannequin (19.5% vs. 71.7%, p < 0.001) at the end of the study. In the intervention group, all CPR metrics except infant depth were improved and retained over the course of the study.

CONCLUSION

Distributed CPR training with real-time feedback improves the compliance of AHA guidelines of quality of CPR.

Comparison between manual and mechanical chest compressions during resuscitation in a pediatric animal model of asphyxial cardiac arrest

Aims

Chest compressions (CC) during cardiopulmonary resuscitation are not sufficiently effective in many circumstances. Mechanical CC could be more effective than manual CC, but there are no studies comparing both techniques in children. The objective of this study was to compare the effectiveness of manual and mechanical chest compressions with Thumper device in a pediatric cardiac arrest animal model.

Material and methods

An experimental model of asphyxial cardiac arrest (CA) in 50 piglets (mean weight 9.6 kg) was used. Animals were randomized to receive either manual CC or mechanical CC using a pediatric piston chest compressions device (Life-Stat®, Michigan Instruments). Mean arterial pressure (MAP), arterial blood gases and end-tidal CO2 (etCO2) values were measured at 3, 9, 18 and 24 minutes after the beginning of resuscitation.

Results

There were no significant differences in MAP, DAP, arterial blood gases and etCO2 between chest compression techniques during CPR. Survival rate was higher in the manual CC (15 of 30 = 50%) than in the mechanical CC group (3 of 20 = 15%) p = 0.016. In the mechanical CC group there was a non significant higher incidence of haemorrhage through the endotracheal tube (45% vs 20%, p = 0.114).

Conclusions

In a pediatric animal model of cardiac arrest, mechanical piston chest compressions produced lower survival rates than manual chest compressions, without any differences in hemodynamic and respiratory parameters.

Reducing the impact of intensive care unit mattress compressibility during CPR: a simulation-based study

BACKGROUND

The depth of chest compression (CC) during cardiac arrest is associated with patient survival and good neurological outcomes. Previous studies showed that mattress compression can alter the amount of CCs given with adequate depth. We aim to quantify the amount of mattress compressibility on two types of ICU mattresses and explore the effect of memory foam mattress use and a backboard on mattress compression depth and effect of feedback source on effective compression depth.

METHODS

The study utilizes a cross-sectional self-control study design. Participants working in the pediatric intensive care unit (PICU) performed 1 min of CC on a manikin in each of the following four conditions: (i) typical ICU mattress; (ii) typical ICU mattress with a CPR backboard; (iii) memory foam ICU mattress; and (iv) memory foam ICU mattress with a CPR backboard, using two different sources of real-time feedback: (a) external accelerometer sensor device measuring total compression depth and (b) internal light sensor measuring effective compression depth only. CPR quality was concurrently measured by these two devices. The differences of the two measures (mattress compression depth) were summarized and compared using multilevel linear regression models. Effective compression depths with different sources of feedback were compared with a multilevel linear regression model.

RESULTS

The mean mattress compression depth varied from 24.6 to 47.7 mm, with percentage of depletion from 31.2 to 47.5%. Both use of memory foam mattress (mean difference, MD 11.7 mm, 95%CI 4.8-18.5 mm) and use of backboard (MD 11.6 mm, 95% CI 9.0-14.3 mm) significantly minimized the mattress compressibility. Use of internal light sensor as source of feedback improved effective CC depth by 7-14 mm, compared with external accelerometer sensor.

CONCLUSION

Use of a memory foam mattress and CPR backboard minimizes mattress compressibility, but depletion of compression depth is still substantial. A feedback device measuring sternum-to-spine displacement can significantly improve effective compression depth on a mattress.

TRIAL REGISTRATION

Not applicable. This is a mannequin-based simulation research.

Continuous capnography monitoring during resuscitation in a transitional large mammalian model of asphyxial cardiac arrest

BACKGROUND

In neonates requiring chest compression (CC) during resuscitation, neonatal resuscitation program (NRP) recommends against relying on a single feedback device such as end-tidal carbon dioxide (ETCO₂) or saturations (SpO₂) to determine return of spontaneous circulation (ROSC) until more evidence becomes available.

METHODS

We evaluated the role of monitoring ETCO₂ during resuscitation in a lamb model of cardiac arrest induced by umbilical cord occlusion (n = 21). Lambs were resuscitated as per NRP guidelines. Systolic blood pressure (SBP), carotid and pulmonary blood flows along with ETCO₂ and blood gases were continuously monitored. Resuscitation was continued for 20 min or until ROSC (whichever was earlier). Adequate CC was arbitrarily defined as generation of 30 mmHg SBP during resuscitation. ETCO₂ thresholds to predict adequacy of CC and detect ROSC were determined.

RESULTS

Significant relationship between ETCO₂ and adequate CC was noted during resuscitation (AUC-0.735, P < 0.01). At ROSC (n = 12), ETCO₂ rapidly increased to 57 ± 20 mmHg with a threshold of ≥32 mmHg being 100% sensitive and 97% specific to predict ROSC.

CONCLUSION

In a large mammalian model of perinatal asphyxia, continuous ETCO₂ monitoring predicted adequacy of CC and detected ROSC. These findings suggest ETCO₂ in conjunction with other devices may be beneficial during CC and predict ROSC.

Utility of a simple lighting device to improve chest compressions learning

INTRODUCTION

The recommendations on cardiopulmonary resuscitation (CPR) emphasize the quality of the manoeuvres, especially chest compressions (CC). Audiovisual feedback devices could improve the quality of the CC during CPR. The aim of this study was to evaluate the usefulness of a simple lighting device as a visual aid during CPR on a mannequin.

MATERIAL AND METHODS

Twenty-two paediatricians who attended an accredited paediatric CPR course performed, in random order, 2min of CPR on a mannequin without and with the help of a simple lighting device, which flashes at a frequency of 100 cycles per minute. The following CC variables were analyzed using a validated compression quality meter (CPRmeter^®): depth, decompression, rate, CPR time and percentage of compressions.

RESULTS

With the lighting device, participants increased average quality (60.23±54.50 vs. 79.24±9.80%; P=.005), percentage in target depth (48.86±42.67 vs. 72.95±20.25%; P=.036) and rate (35.82±37.54 vs. 67.09±31.95%; P=.024).

CONCLUSIONS

A simple light device that flashes at the recommended frequency improves the quality of CC performed by paediatric residents on a mannequin. The usefulness of this CPR aid system should be assessed in real patients.

The effect of step stool use and provider height on CPR quality during pediatric cardiac arrest: A simulation-based multicentre study

OBJECTIVES

We aimed to explore whether a) step stool use is associated with improved cardiopulmonary resuscitation (CPR) quality; b) provider adjusted height is associated with improved CPR quality; and if associations exist, c) determine whether just-in-time (JIT) CPR training and/or CPR visual feedback attenuates the effect of height and/or step stool use on CPR quality.

METHODS

We analysed data from a trial of simulated cardiac arrests with three study arms: No intervention; CPR visual feedback; and JIT CPR training. Step stool use was voluntary. We explored the association between 1) step stool use and CPR quality, and 2) provider adjusted height and CPR quality. Adjusted height was defined as provider height + 23 cm (if step stool was used). Below-average height participants were ≤ gender-specific average height; the remainder were above average height. We assessed for interaction between study arm and both adjusted height and step stool use.

RESULTS

One hundred twenty-four subjects participated; 1,230 30-second epochs of CPR were analysed. Step stool use was associated with improved compression depth in below-average (female, p=0.007; male, p<0.001) and above-average (female, p=0.001; male, p<0.001) height providers. There is an association between adjusted height and compression depth (p<0.001). Visual feedback attenuated the effect of height (p=0.025) on compression depth; JIT training did not (p=0.918). Visual feedback and JIT training attenuated the effect of step stool use (p<0.001) on compression depth.

CONCLUSIONS

Step stool use is associated with improved compression depth regardless of height. Increased provider height is associated with improved compression depth, with visual feedback attenuating the effects of height and step stool use.

Conducting multicenter research in healthcare simulation: Lessons learned from the INSPIRE network

Simulation-based research has grown substantially over the past two decades; however, relatively few published simulation studies are multicenter in nature. Multicenter research confers many distinct advantages over single-center studies, including larger sample sizes for more generalizable findings, sharing resources amongst collaborative sites, and promoting networking. Well-executed multicenter studies are more likely to improve provider performance and/or have a positive impact on patient outcomes. In this manuscript, we offer a step-by-step guide to conducting multicenter, simulation-based research based upon our collective experience with the International Network for Simulation-based Pediatric Innovation, Research and Education (INSPIRE). Like multicenter clinical research, simulation-based multicenter research can be divided into four distinct phases. Each phase has specific differences when applied to simulation research: (1) Planning phase, to define the research question, systematically review the literature, identify outcome measures, and conduct pilot studies to ensure feasibility and estimate power; (2) Project Development phase, when the primary investigator identifies collaborators, develops the protocol and research operations manual, prepares grant applications, obtains ethical approval and executes subsite contracts, registers the study in a clinical trial registry, forms a manuscript oversight committee, and conducts feasibility testing and data validation at each site; (3) Study Execution phase, involving recruitment and enrollment of subjects, clear communication and decision-making, quality assurance measures and data abstraction, validation, and analysis; and (4) Dissemination phase, where the research team shares results via conference presentations, publications, traditional media, social media, and implements strategies for translating results to practice. With this manuscript, we provide a guide to conducting quantitative multicenter research with a focus on simulation-specific issues.

So you want to conduct a randomised trial? Learnings from a 'failed' feasibility study of a Crisis Resource Management prompt during simulated paediatric resuscitation

BACKGROUND

No study has tested a Crisis Resource Management prompt on resuscitation performance.

METHODS

We conducted a feasibility, unblinded, parallel-group, randomised controlled trial at one Australian paediatric hospital (June-September 2014). Eligible participants were any doctor, nurse, or nurse manager who would normally be involved in a Medical Emergency Team simulation. The unit of block randomisation was one of six scenarios (3 control:3 intervention) with or without a verbal prompt. The primary outcomes tested the feasibility and utility of the intervention and data collection tools. The secondary outcomes measured resuscitation quality and team performance.

RESULTS

Data were analysed from six resuscitation scenarios (n=49 participants); three control groups (n=25) and three intervention groups (n=24). The ability to measure all data items on the data collection tools was hindered by problems with the recording devices both in the mannequins and the video camera.

CONCLUSIONS

For a pilot study, greater training for the prompt role and pre-briefing participants about assessment of their cardio-pulmonary resuscitation quality should be undertaken. Data could be analysed in real time with independent video analysis to validate findings. Two cameras would strengthen reliability of the methods.