Evaluation of a Bochdalek diaphragmatic hernia rabbit model for pediatric thoracoscopic training

Enhancing neonatal thoracoscopic surgical training with rabbit model

Background

Thoracoscopy, which has an increasing role in the treatment of indexed neonatal surgical conditions, requires adequate training. To support this, the current study aimed to evaluate the feasibility and effectiveness of using live rabbit models in neonatal thoracoscopic skills training among paediatric surgeons.

Methods

Following didactic lectures and demonstrations, the participants were given hands-on opportunities to perform thoracoscopic procedures. The feasibility and effectiveness of using live rabbit models in neonatal thoracoscopic skills training among paediatric surgeons were evaluated with pre-/post-course procedural confidence scores and a questionnaire.

Results

This study included 13 paediatric surgeons-2 (15 %) males and 11 (85 %) females-who were evenly distributed. There were four basic surgical trainees, five higher surgical trainees and four fellows in paediatric surgery (mean surgical practice experience: 4.5 ± 3.7 years). Most had experience assisting paediatric (70 %) and neonatal (62 %) thoracoscopic surgery. Only 30 % had experience as the chief surgeon of paediatric thoracoscopic surgery, with none on neonates. Significant improvement was seen in procedural confidence as the assistant and chief surgeon of all procedures post-workshop. The surgeons rated the model positively.

Conclusion

The procedural confidence level of paediatric surgeons improved significantly after workshop participation. This realistic and easily reproducible model can help perfect thoracoscopic skills. Therefore, its integration into paediatric surgical training would promote surgical skill proficiency and could improve surgeons' confidence in neonate operations.

Validated simulation models in pediatric surgery: A review

INTRODUCTION

This review evaluates the validation and availability of simulation models in the field of pediatric surgery that can be used for training purposes.

METHODS

MEDLINE and EMBASE were searched for studies describing a simulation models in pediatric surgery. Articles were included if face, content and/or construct validity was described. Additionally, the costs and availability were assessed. Validation scores for each model were depicted as percentage (0-100), based on the reported data, to compare the outcomes. A score of >70% was considered adequate.

RESULTS

Forty-three studies were identified, describing the validation process of 38 simulation models. Face validity was evaluated in 33 articles, content in 36 and construct in 19. Twenty-two models received adequate validation scores (>70%). The majority (27/38, 70%) was strictly inanimate. Five models were available for purchase and eleven models were replicable based on the article.

CONCLUSION

The number of validated inanimate simulation models for pediatric surgery procedures is growing, however, few are replicable or available for widespread training purposes.

LEVEL OF EVIDENCE

Level II.

Evaluation methods and impact of simulation-based training in pediatric surgery: a systematic review

PURPOSE

The aim of this study was to identify (1) the type of skill evaluation methods and (2) how the effect of training was evaluated in simulation-based training (SBT) in pediatric surgery.

METHODS

Databases of PubMed, Cochrane Library, and Web of Science were searched for articles published from January 2000 to January 2017. Search concepts of Medical Subject Heading terms were "surgery," "pediatrics," "simulation," and "training, evaluation."

RESULTS

Of 5858 publications identified, 43 were included. Twenty papers described simulators as assessment tools used to evaluate technical skills. Reviewers differentiated between experts and trainees using a scoring system (45%) and/or a checklist (25%). Simulators as training tools were described in 23 papers. While the training's effectiveness was measured using performance assessment scales (52%) and/or surveys (43%), no study investigated the improvement of the clinical outcomes after SBT.

CONCLUSION

Scoring, time, and motion analysis methods were used for the evaluation of basic techniques of laparoscopic skills. Only a few SBT in pediatric surgery have definite goals with clinical effect. Future research needs to demonstrate the educational effect of simulators as assessment or training tools on SBT in pediatric surgery.

Simulation and Deliberate Practice in a Porcine Model for Congenital Heart Surgery Training

BACKGROUND

Surgeons in training for congenital cardiac surgery face considerable challenges owing to procedure complexity, closely scrutinized outcomes, and a steep learning curve. Simulation methods have been initiated in other surgical specialties, but have yet to be established for congenital cardiac surgery trainees. The purpose of this study was to assess high-fidelity simulation as a method to train and improve skills of resident trainees learning critical components of index congenital cardiac surgical procedures.

METHODS

Using 5 neonatal piglets over a period of 2.5 days, the following procedures were simulated: Norwood procedure, arterial switch operation, neonatal Ross procedure, tetralogy of Fallot repair, systemic to pulmonary artery shunt procedures, transmediastinal coarctation repair, atrial septal defect repair, ventricular septal defect repair, and right ventricular to pulmonary artery conduit. Anastomoses were tested with saline, all procedures were timed and video recorded, and resident trainee techniques and skills were critiqued by the instructor.

RESULTS

All aspects of the procedures were simulated with minimal modifications. Anastomoses were tested, and the procedure successfully replicated without the pressures of operative time. Operative techniques involving suture placement in neonatal tissue, depth perception, and patch size estimation were corrected in real time, resulting in observed improvement of surgical skills. Video review allowed for further pedagogic value through examination and documentation of competency.

CONCLUSIONS

This neonatal porcine simulation model allows surgical trainees in congenital heart surgery to make and correct mistakes in a safe and controlled learning environment without compromising patient safety, thereby fostering surgeon competence and confidence.