Comparison of success rates using video laryngoscopy versus direct laryngoscopy by residents during a simulated pediatric emergency

Direct laryngoscopy versus indirect videolaryngoscopy for intubating newborn manikins: a randomised crossover study

Gaining and maintaining proficiency at endotracheal intubation is challenging. Recent clinical trials suggest videolaryngoscopy is beneficial for teaching inexperienced clinicians to intubate newborn infants, but may take longer compared to standard laryngoscopy. Preferences for devices among clinicians are unclear. Simulation studies using manikins have shown that use of videolaryngoscopes (VLs) likely improves intubation outcomes, at least in the short term. This study is the first to compare different VLs and SL as they are designed in clinicians with varying levels of experience in term and preterm manikins. This setup more closely mimics real-life clinical practice in comparison to trials exclusively of novices or using VL devices to intubate directly. Our study is relevant to members of the perinatal and neonatal clinical care team and related to using technology to improve neonatal outcomes. It is of particular importance in the current environment of reduced opportunities to learn and maintain neonatal intubation skills due to changes in neonatal practice and clinical care.

Augmented Reality-Assisted Video Laryngoscopy and Simulated Neonatal Intubations: A Pilot Study

BACKGROUND

For novice providers, achieving competency in neonatal intubation is becoming increasingly difficult, possibly because of fewer intubation opportunities. In the present study, we compared intubation outcomes on manikins using direct laryngoscopy (DL), indirect video laryngoscopy (IVL) using a modified disposable blade, and augmented reality-assisted video laryngoscopy (ARVL), a novel technique using smart glasses to project a magnified video of the airway into the intubator's visual field.

METHODS

Neonatal intensive care nurses (n = 45) with minimal simulated intubation experience were randomly assigned (n = 15) to the following 3 groups: DL, IVL, and ARVL. All participants completed 5 intubation attempts on a manikin using their assigned modalities and received verbal coaching by a supervisor, who viewed the video while assisting the IVL and ARVL groups. The outcome and time of each attempt were recorded.

RESULTS

The DL group successfully intubated on 32% of attempts compared to 72% in the IVL group and 71% in the ARVL group (P < .001). The DL group intubated the esophagus on 27% of attempts, whereas there were no esophageal intubations in either the IVL or ARVL groups (P < .001). The median (interquartile range) time to intubate in the DL group was 35.6 (22.9-58.0) seconds, compared to 21.6 (13.9-31.9) seconds in the IVL group and 20.7 (13.2-36.5) seconds in the ARVL group (P < .001).

CONCLUSIONS

Simulated intubation success of neonatal intensive care nurses was significantly improved by using either IVL or ARVL compared to DL. Future prospective studies are needed to explore the potential benefits of this technology when used in real patients.

Evolution of videolaryngoscopy in pediatric population

Direct laryngoscopy has remained the sole method for securing airway ever since the inception of endotracheal intubation. The recent introduction of video-laryngoscopes has brought a paradigm shift in the pratice of airway management. It is claimed that they improve the glottic view and first pass success rates in adult population. The airway management in children is more challenging than adults. The role of videolaryngoscopy for routine intubation in children is not clearly proven. This review attempts to discuss various videolaryngosocpes available for use in pediatric patients.

Video Versus Direct and Augmented Direct Laryngoscopy in Pediatric Tracheal Intubations

OBJECTIVES

With respect to first-attempt intubation success, the pediatric literature demonstrates either clinical equipoise or superiority of direct laryngoscopy (DL) when compared to video laryngoscopy (VL). Furthermore, it is unknown how VL compares to DL, when DL is "augmented" by maneuvers, such as optimal external laryngeal manipulation (OELM), upright or ramped positioning, or the use of the bougie. The objective of our study was to compare first-attempt success between VL and all DL, including "augmented DL" for pediatric intubations.

METHODS

We analyzed the National Emergency Airway Registry database of intubations of patients < 16 years. Variables collected included patient demographics, body habitus, impression of airway difficulty, intubating position, reduced neck mobility, airway characteristics, device, medications, and operator characteristics, adjusted for clustering by center. Primary outcome was the difference in first-attempt success for DL and augmented DL versus VL. Secondary outcomes included adverse events. In a planned sensitivity analysis, a propensity-adjusted analysis for first-attempt success and a subgroup analysis of children < 2 years was also performed.

RESULTS

Of 625 analyzable pediatric encounters, 294 (47.0%, 95% confidence interval [CI] = 25.1% to 69.0%) were DL; 332 (53.1%, 95% CI = 31.0% to 74.9%) were VL. Median age was 4 years (interquartile range = 1 to 10 years); 225 (36.0%, 95% CI = 30.8% to 41.2%) were < 2 years. Overall first-pass success was 79.6% (95% CI = 74.1% to 84.9%). VL first-pass success was 278/331 (84.0%) versus 219/294 for DL (74.5%), adjusted for clustering (odds ratio [OR] = 1.7, 95% CI = 1.3 to 2.5). Multivariable regression showed that VL yielded a higher odds of first-attempt success than DL augmented by OELM or use of a bougie (adjusted OR = 5.5, 95% CI = 1.7 to 18.1). Propensity-adjusted analyses supported the main results. Subgroup analysis of age < 2 years also demonstrated VL superiority (OR = 2.0, 95% CI = 1.1 to 3.3) compared with DL. Adverse events were comparable in both univariate and multivariable analysis.

CONCLUSIONS

When compared to DL, VL was associated with higher first-pass success in this pediatric population, even in the subgroup of patients < 2 years, as well as when DL was augmented. There were no differences in adverse effects between DL and VL.

Process conformance is associated with successful first intubation attempt and lower odds of adverse events in a paediatric emergency setting

BACKGROUND

Intubation is an essential, life-saving skill but associated with a high risk for adverse outcomes. Intubation protocols have been implemented to increase success and reduce complications, but the impact of protocol conformance is not known. Our study aimed to determine association between conformance with an intubation process model and outcomes.

METHODS

An interdisciplinary expert panel developed a process model of tasks and sequencing deemed necessary for successful intubation. The model was then retrospectively used to review videos of intubations from 1 February, 2014, to 31 January, 2016, in a paediatric emergency department at a time when no process model or protocol was in existence.

RESULTS

We evaluated 113 patients, 77 (68%) were successfully intubated on first attempt. Model conformance was associated with a higher likelihood of first attempt success when using direct laryngoscopy (OR 1.09, 95% CI 1.01 to 1.18). The use of video laryngoscopy was associated with an overall higher likelihood of success on first attempt (OR 2.54, 95% CI 1.10 to 5.88). Thirty-seven patients (33%) experienced adverse events. Model conformance was the only factor associated with a lower odds of adverse events (OR 0.94, 95% CI 0.88 to 0.99).

CONCLUSIONS

Conformance with a task-based expert-derived process model for emergency intubation was associated with a higher rate of success on first intubation attempt when using direct laryngoscopy and a lower odds of associated adverse events. Further evaluation of the impact of human factors, such as teamwork and decision-making, on intubation process conformance and success and outcomes is needed.

What Do NICU Fellows Identify as Important for Achieving Competency in Neonatal Intubation?

BACKGROUND

Tracheal intubation (TI) is one of the most important interventions for the stabilization of critically ill neonates. Competency in airway management is essential for neonatal fellows. No studies have assessed which educational models, techniques, or instructions are perceived by neonatal fellows as the most beneficial for achieving competency in TI.

OBJECTIVES

This study identifies which factors are considered most helpful in achieving intubation competency.

METHOD

This was a mixed-method study. Semi-structured phone interviews addressed training experience for neonatal intubation. Through qualitative analysis, common themes were identified. RedCap electronic surveys and procedure logs were used to assess procedural experience.

RESULTS

Forty-two fellows from 5 programs completed phone interviews. Fellows recalled 6-10 intubation attempts before fellowship. Independent statements related to achieving intubation competency were analyzed and coded into 5 main themes (Procedure, Practice, Perceptual Environment, Personnel, and Preparation). A large proportion of the statements focused on the use of video laryngoscopy.

CONCLUSIONS

The themes identified by neonatal-perinatal medicine (NPM) fellows as being the most beneficial in achieving proficiency in neonatal TI are categorized as "The 5 Ps." Careful review of these themes may be utilized to develop validated curriculums that enhance the teaching of TI and optimize the achievement of TI competency among NPM fellows.

Procedure rates performed by emergency medicine residents: a retrospective review

BACKGROUND

The purpose of our study is to investigate rates of individual procedures performed by residents in our emergency medicine (EM) residency program. Different programs expose residents to different training environments. Our hypothesis is that ultrasound examinations are the most commonly performed procedure in our residency.

METHODS

The study took place in an academic level I trauma center with multiple residency and fellowship programs including surgery, surgical critical care, trauma, medicine, pulmonary/critical care, anesthesiology and others. Also, the hospital provides a large emergency medical services program providing basic and advanced life support and critical care transport, which is capable of performing rapid sequence intubation. Each EM residency class, except for the first 2 months of the inaugural class, used New Innovations to log procedures. New Innovations is an online database for tracking residency requirements, such as procedures and hours. For the first 3 months, procedures were logged by hand on a log sheet. In addition, our department has a wireless electronic system (Qpath) for recording and logging ultrasound images. These logs were reviewed retrospectively without any patient identifiers. Actual procedures and simulation procedures were combined for analysis as they were only logged separately halfway through the study period. Procedures were summed and the average procedure rate per resident per year was calculated.

RESULTS

In total, 66 full resident years were analyzed. Overall, ultrasound was the most commonly performed procedure, with each resident performing 125 ultrasounds per year. Removing "resuscitations," the second most common was endotracheal intubation, performed 28.91 times per year, and third most was laceration repair, which was performed 17.39 times per year. Our lowest performed procedure was thoracentesis, which was performed on average 0.11 times per resident per year.

CONCLUSIONS

Residents performed a variety of procedures each year. Ultrasound examinations were the most frequent procedure performed. The number of ultrasound procedures performed may reflect the changing training landscape and influence future Accreditation Council of Graduate Medical Education requirements.

Comparison Between Direct and Video-assisted Laryngoscopy for Intubations in a Pediatric Emergency Department

OBJECTIVES

The objective was to compare video-assisted laryngoscopy (VAL) to direct laryngoscopy (DL) on success rate and complication rate of intubations performed in a pediatric emergency department (ED).

METHODS

This is a retrospective cohort study of attempted intubations of children aged 0-18 years in a pediatric ED between 2004 and 2014 with first attempt by an ED provider. In VAL, the laryngoscopist attempts direct visualization of the glottis with a C-MAC video laryngoscope while the video monitor is used for real-time guidance by a supervisor, back-up visualization for the laryngoscopist should the direct view be inadequate, and confirmation of endotracheal tube passage through the vocal cords. We performed univariate comparisons of intubations using DL to intubations using VAL on rates of first-pass success, complications, and whether the patient was successfully intubated by an ED provider. We then created a logistic regression model to adjust for provider experience level, difficult airway characteristics, and indications for intubation to compare intubations using DL to intubations using VAL for each outcome.

RESULTS

We identified 452 endotracheal intubations of 422 unique patients, of which 445 intubations had a first attempt by an ED provider. Six intubations were excluded due to insufficient information available in the record. Of the included intubations, 240 (55%) were attempted with DL and 199 (45%) with VAL. The overall first-pass success rate was 71% in the DL group and 72% in the VAL group. After adjustment for covariates, the first-pass success rate was similar between laryngoscopy approaches (adjusted odds ratio = 1.23, 95% confidence interval = 0.78 to 1.94).

CONCLUSIONS

We found no difference between DL and VAL with regard to first-pass intubation success rate, complication rate, or rate of successful intubation by ED providers for children undergoing intubation in a pediatric ED.

Using Video-recorded Laryngoscopy to Evaluate Laryngoscopic Blade Approach and Adverse Events in Children

OBJECTIVES

Using recordings of endotracheal intubation attempts obtained with a video-enabled laryngoscope with Miller and Macintosh blades, the authors sought to evaluate the association between laryngoscopic approach (right-sided vs. midline) and intubation success, as well as adverse event rates in the pediatric emergency department (ED).

METHODS

This was a retrospective cohort study of children younger than 21 years who underwent endotracheal intubation with a C-MAC video laryngoscope in a tertiary care ED between August 2009 and May 2013. The primary outcome was successful endotracheal intubation on the first attempt. The secondary outcomes included time to intubation, video-recorded adverse events (oropharyngeal mucosal injury and aspiration), and physiologic adverse events. Multivariate regression models were used to determine the relationship between laryngoscope blade position and outcome measures adjusted for patient and provider factors.

RESULTS

The cohort consisted of complete video recordings for 105 of 143 (73%) patient encounters with intubations. The first-pass success rate did not significantly differ based on laryngoscopic approach (adjusted odds ratio [aOR] = 0.76, 95% confidence interval [CI] = 0.29 to 2.0). Among patients successfully intubated on the first attempt, the median time to intubation was longer for the right-sided approach compared to the midline approach (42 seconds vs. 31.5 seconds; p < 0.05). The odds of mucosal injury and aspiration were higher among patients intubated using a right-sided approach compared to a midline approach (aOR = 4.1, 95% CI = 1.2 to 14.5; aOR = 7.7, 95% CI = 1.5 to 39.5, respectively). Rates of physiologic adverse events did not differ based on approach.

CONCLUSIONS

First-pass success rate did not differ based upon laryngoscopic approach type; however, a right-sided approach was associated with a longer time to intubation, as well as higher rates of mucosal injury and aspiration among patients undergoing video-enabled intubation in a pediatric ED.

Do you see what I see? A randomised pilot study to evaluate the effectiveness and efficiency of simulation-based training with videolaryngoscopy for neonatal intubation

Introduction

Direct laryngoscopy (DL) and airway intubation are critical for neonatal resuscitation. A challenge in teaching DL is that the instructor cannot assess the learners’ airway view. Videolaryngoscopy (VL), which allows display of a patient's airway on a monitor, enables the instructor to view the airway during the procedure. This pilot study compared deliberate practice using either VL with instruction (I-VL) or traditional DL. We hypothesised that I-VL would improve the efficiency and effectiveness of neonatal intubation (NI) training.

Methods

Participants (students, paediatric interns and neonatal fellows) were randomised to I-VL or DL. Baseline technical skills were assessed using a skills checklist and global skills assessment. Following educational sessions, deliberate practice was performed on mannequins using the Storz C-MAC. With I-VL, the instructor could guide training using a real-time airway monitor view. With DL, feedback was based solely on technique or direct visual confirmation, but the instructor and learner views were not concurrent. During summative assessment, procedural skills checklists were used to evaluate intubation ability on a neonatal airway trainer. The duration of attempts was recorded, and recorded airway views were blindly reviewed for airway grade. ‘Effectiveness’ reflected achievement of the minimum passing score (MPS). ‘Efficiency’ was the duration of training for learners achieving the MPS.

Results

58 learners were randomised. Baseline demographics were similar. All participants had a significant improvement in knowledge, skills and comfort/confidence following training. There were no significant differences between randomised groups in efficiency or effectiveness, but trends towards improvement in each were noted. Fellows were more likely to achieve ‘competency’ postinstruction compared to non-fellows (p<0.001).

Conclusions

This educational intervention to teach NI increased the learner's knowledge, technical skills and confidence in procedural performance in both groups. I-VL did not improve training effectiveness. The small sample size and participant diversity may have limited findings, and future work is indicated.

Predicting neonatal intubation competency in trainees

BACKGROUND AND OBJECTIVES

Pediatric residency training programs are graduating residents who are not competent in neonatal intubation, a vital skill needed for any pediatrician involved in delivery room resuscitations. However, a precise definition of competency during training is lacking. The objective of this study was to more precisely define the trajectory toward competency in neonatal intubation for pediatric residents, as a framework for later evaluating complementary training tools.

METHODS

This is a retrospective single-center observational study of resident-performed neonatal intubations at Duke University Medical Center between 2005 and 2013. Using a Bayesian statistical model, intubation competency was defined when the resident attained a 75% likelihood of intubating their next patient successfully.

RESULTS

A total of 477 unique intubation attempts by 105 residents were analyzed. The path to proficiency was defined by a categorical or milestone learning event after which all learners move toward competency in a similar manner. In our cohort, 4 cumulative successes were needed to achieve competency. Only 24 of 105 (23%) achieved competency during the study period. Residents who failed their first 2 opportunities, compared with those successful on their first 2 opportunities, needed nearly double the intubation exposure to achieve competency.

CONCLUSIONS

Bayesian statistics may be useful to more precisely describe neonatal intubation competency in residents. Achieving competency in neonatal intubation appears to be a categorical or milestone learning event whose timing varies between residents. The current educational environment does not provide adequate procedural exposure to achieve competency for most residents.

Critical appraisal of emergency medicine education research: the best publications of 2013

OBJECTIVES

The objective was to critically appraise and highlight methodologically superior medical education research articles published in 2013 whose outcomes are pertinent to teaching and education in emergency medicine (EM).

METHODS

A search of the English-language literature in 2013 querying Education Resources Information Center (ERIC), PsychINFO, PubMed, and Scopus identified 251 EM-related studies using hypothesis-testing or observational investigations of educational interventions. Two reviewers independently screened all of the publications and removed articles using established exclusion criteria. Six reviewers then independently scored the remaining 43 publications using either a qualitative a or quantitative scoring system, based on the research methodology of each article. Each scoring system consisted of nine criteria. Selected criteria were based on accepted educational review literature and chosen a priori. Both scoring systems used parallel scoring metrics and have been used previously within this annual review.

RESULTS

Forty-three medical education research papers (37 quantitative and six qualitative studies) met the a priori criteria for inclusion and were reviewed. Six quantitative and one qualitative study were scored and ranked most highly by the reviewers as exemplary and are summarized in this article.

CONCLUSIONS

This annual critical appraisal article aims to promote superior research in EM-related education, by reviewing and highlighting seven of 43 major education research studies, meeting a priori criteria, and published in 2013. Common methodologic pitfalls in the 2013 papers are noted, and current trends in medical education research in EM are discussed.

Utilization of exploration-based learning and video-assisted learning to teach GlideScope videolaryngoscopy

BACKGROUND

GlideScope (GS) is used in pediatric endotracheal intubation (ETI) but requires a different technique compared to direct laryngoscopy (DL).

PURPOSES

This article was written to evaluate the efficacy of exploration-based learning on procedural performance using GS for ETI of simulated pediatric airways and establish baseline success rates and procedural duration using DL in airway trainers among pediatric providers at various levels.

METHODS

Fifty-five pediatric residents, fellows, and faculty from Pediatric Critical Care, NICU, and Pediatric Emergency Medicine were enrolled. Nine physicians from Pediatric Anesthesia benchmarked expert performance. Participants completed a demographic survey and viewed a video by the GS manufacturer. Subjects spent 15 minutes exploring GS equipment and practicing the intubation procedure. Participants then intubated neonatal, infant, child, and adult airway simulators, using GS and DL, in random order. Time to ETI was recorded.

RESULTS

Procedural performance after exploration-based learning, measured as time to successful ETI, was shorter for DL than for GS for neonatal and child airways at the.05 significance level. Time to ETI in adult airway using DL was correlated with experience level (p =.01). Failure rates were not different among subgroups.

CONCLUSIONS

A brief video and period of exploration-based learning is insufficient for implementing a new technology. Pediatricians at various levels of training intubated simulated airways faster using DL than GS.