Advanced Pediatric Airway Simulation

Simulation based education in paediatric resuscitation

There is increasing use of clinical Simulation Based Education (SBE) in healthcare due to an increased focus on patient safety, the call for a new training model not based solely on apprenticeship, a desire for standardised educational opportunities that are available on-demand, and a need to practice and hone skills in a controlled environment. SBE programs should be evaluated against Kirkpatrick level 3 or 4 criteria to ensure they improve patient or staff outcomes in the real world. SBE programs have been shown to improve outcomes in neonatology - reductions in hypoxic ischaemic encephalopathy, in brachial plexus injury, rates of school age cerebral palsy, reductions in 24hr mortality and improvements in first pass intubation rates. In paediatrics SBE programs have shown improvements in paediatric cardiac arrest survival, PICU survival, reduced PICU admissions, reduced PICU length of stay and reduced time to critical operations. SBE can improve the non-technical tasks of teamwork, leadership and communication (within the team and with patients and carers). Simulation is a useful tool in Quality and Safety and is used to identify latent safety issues that can be addressed by future programs. In high stakes assessment simulation can be a mode of assessment, however, care needs to be taken to ensure the tool is validated carefully.

Multidisciplinary Advanced Surgical Planning for Slide Tracheoplasty Using 3D-Printed Models

OBJECTIVE

The objective of this study was to develop and assess multidisciplinary advanced surgical planning (ASP) sessions using three dimensional (3D) printed models for cervicothoracic slide tracheoplasty (CST). We hypothesized that these sessions would improve surgeon confidence, streamline intraoperative planning, and highlight the utility of 3D modeling.

METHODS

3D-printed patient-specific trachea models were used in pre-operative ASP sessions consisting of a multidisciplinary case discussion and hands-on slide tracheoplasty simulation. Participants completed a survey rating realism, utility, impact on the final surgical plan, and pre- and post-session confidence. Statistical analysis was performed via Wilcoxon and Kruskal-Wallis tests.

RESULTS

Forty-eight surveys were collected across nine sessions and 27 different physicians. On a 5-point Likert scale, models were rated as "very realistic", "very useful" (both median of 4, IQR 3-4 and 4-5, respectively). Overall confidence increased by 1.4 points (+/- 0.7, p < 0.0001), with the largest change seen in those with minimal prior slide tracheoplasty experience (p = 0.005). Participants felt that the sessions "strongly" impacted their surgical plan or anticipated performance (median 4, IQR 4-5), regardless of training level or experience.

CONCLUSION

3D-printed patient-specific models were successfully implemented in ASP sessions for CST. Models were deemed very realistic and very useful by surgeons across multiple specialties and training levels. Surgical planning sessions also strongly impacted the final surgical plan and increased surgeon confidence for CST.

LEVEL OF EVIDENCE

4 Laryngoscope, 134:3395-3401, 2024.

Operative Airway Exposure in an Otolaryngology-Head and Neck Surgery Training Program. A Survey of Current Trainees

To survey Otolaryngology residents to evaluate their operative airway exposure during their training and to assess if the exposure was adequate to decide whether to pursue fellowship in pediatric. A modified and validated survey was distributed among otolaryngology trainees in the Western region of Kingdom of Saudi Arabia. It assesses operative airway exposure during training, adequacy of experience to decide on whether to pursue fellowship in pediatric otolaryngology, and plan to perform the following six procedures (diagnostic rigid bronchoscopy, diagnostic flexible bronchoscopy, endoscopic airway foreign body removal, rigid esophagoscopy with or without foreign body removal, suspension microlaryngoscopy procedures, open tracheostomy) in practice. Only 24/60 (60%) of respondents perceived that they had adequate training as to whether or not to make them decide to pursue fellowship in pediatric. In regard to over all assessment of the level of exposure: the vast majority of trainees regarded the training as adequate 30/60 (50%), 3/60 (5%) thought it was excellent, 6/60 (10%) thought it was good, and 21/60 (35%)assessed the training adequacy as poor. 24/33 (72.7%) perceived that the presence of a pediatric fellow with them enhanced their training. In regards to performing surgeries after training, 78% were planning to perform rigid bronchoscopy, flexible bronchoscopy (58%), endoscopic airway FB removal (92%), esophagoscopy (54%), suspension microlaryngoscopy (82%), and open tracheostomy (100%). The presence of a pediatric fellow in service was thought of by most residents as being beneficial, however, the exposure to airway surgeries were not adequate as to inform trainees if they want to pursue fellowship in pediatric, when they were not exposed to a fellow.

Development of a Cost-Effective Pediatric Intubation Task Trainer for Rural Medical Education

Pediatric intubation and airway management (PIAM) is a life-saving, emergent procedure that is performed by a variety of healthcare practitioners. Securing the pediatric airway in a time-sensitive fashion is a specialized skill that declines with lack of practice, leading to a precarious gap in clinical competency and healthcare delivery. However, current training models for PIAM, such as live animals, human cadavers, and simulators, are not adequately accessible or reliable due to their combination of high cost, unrealistic simulation, lack of standardization, and ethical concerns. Task trainers pose an ethically and fiscally sustainable training model for experiential learning through repetitive practice, which has been shown to dramatically improve trainee proficiency and confidence in performing high-acuity low-occurrence procedures such as pediatric intubation. This work aims to report the development process and initial validation evidence of a prototype cost-effective pediatric intubation task trainer that can be used for post-graduate education, especially in resource-challenged settings.

A novel, low fidelity simulator for laryngotracheal reconstruction

INTRODUCTION

Open airway reconstruction is a highly specialized skill. Simulation affords the opportunity to practice surgical skills in a low stakes environment which is particularly important for a high acuity, low frequency operation. Although animal models have been described, these present ethical and financial barriers, and therefore are not ideal to expose residents to airway reconstruction techniques. To our knowledge there is not a commercially available simulator for laryngotracheal reconstruction.

OBJECTIVES

This study describes a novel, low-fidelity simulation technique for laryngotracheal reconstruction using a cartilage graft.

METHODS

We designed a low-fidelity simulator to represent the trachea, esophagus, and cartilage graft using tubing from a Luken's trap, vinyl backwash hose, and pig's ears from a non-specialty grocery store. The model was evaluated with a Likert scale (1 = strongly disagree to 5 = strongly agree).

RESULTS

Twelve participants attended simulation sessions. Participants reported a mean score (+/-SD) 4.25 ± 0.75 that the tissue characteristics were adequate and 4.50 ± 0.79 that sutures could be placed. There was universal strong agreement that the tissue could be manipulated appropriately (5 ± 0). The cost per resident was less than 4 dollars.

CONCLUSION

We present a readily available, easy to construct, and low cost simulation model for open airway reconstruction that can be used as a stand-alone simulator or in preparation for an animal dissection course. Our participants reported that the model had acceptable tissue characteristics to practice performing laryngotracheal reconstruction with a cartilage graft.

Residual airway foreign bodies in children who underwent rigid bronchoscopy

OBJECTIVE

To analyze the causes of residual airway foreign bodies in children who underwent rigid bronchoscopy in order to improve the success rate of primary surgery.

METHODS

Clinical data from 1130 children with airway foreign bodies, including 736 males and 394 females aged 0.42-14 years, who underwent rigid bronchoscopy in our hospital from January 2015 to May 2018 were retrospectively collected and analyzed by cluster sampling. Clinical characteristics including sex, age, time of onset, location of the foreign body, type of foreign body and experience of surgeon were gathered. All patients were classified into two groups as Group A (with residual airway foreign bodies) and Group B (without residual airway foreign bodies) according to chest CT scans and fiberoptic bronchoscope examinations after rigid bronchoscopy. The values were compared between the two groups.

RESULTS

Thirty-one patients with residual foreign bodies were confirmed by fiberoptic bronchoscopy among 1130 children with airway foreign bodies who underwent rigid bronchoscopy under general anesthesia. The percentage of residual airway foreign body was 2.7%. The mean age was 1.55 ± 0.46 years (range 1-3 years). There were 24 male patients (77.4%), and 7 female patients (22.6%), with a male/female ratio of 3.43:1. The time of onset was 1.0 (interquartile range: 1.0-8.0) day. There were no significant difference in age, sex and time of onset between the two groups. Most residual foreign bodies were food-related: nuts (n = 27, 87.1%), beans (n = 3, 9.7%), and one case was unclear in nature (3.2%). The residual incidence of fragile foreign bodies was higher than non-friable foreign bodies (P = 0.028). The most common residual foreign body locations were left superior lobar bronchi (32.3%), left inferior lobar bronchi (25.8%) and right inferior lobar bronchi (25.8%). The residual rate of foreign bodies for surgeons with more than 5 years of operative experience was 1.92%, and 4.25% for surgeons with less than 5 years of operation experience, showing a significant difference (P = 0.022).

CONCLUSION

Friable foods, the complicated structure of the bronchus tree and the surgeon's experience are important causes of residual foreign bodies in the airway. Surgeons with sufficient experience are important for the success of the procedure, which is supported by chest CT and flexible bronchoscopy.