Emergency Department Thoracotomy: A Cost-Effective Model for Simulation Training

Improving emergency medicine resident pediatric lumbar puncture procedural performance through a brief just-in-time video intervention

BACKGROUND

Emergency medicine (EM) trainee comfort level with lumbar puncture (LP) has decreased over time due to changing practice guidelines, particularly amongst pediatric patients. We implemented a "just in time" (JIT) brief educational video based on a previously published LP Performance Scoring Checklist to improve trainee efficiency and competence in LP performance.

METHODS

Our pilot quasi-experimental study took place January-June 2022 within a large, academic Midwestern emergency department (ED) with an established 3-year EM residency program. All 9 interns performed a timed diagnostic LP on an infant LP model in January, scored according to the LP Performance Scoring Checklist. In June, interns repeated the timed LP procedure directly after watching a brief educational video based on major checklist steps. The study was deemed exempt by the Institutional Review Board.

RESULTS

All interns completed both assessments. At baseline, interns had logged performance of median 2 (IQR 0-5) LPs and spent 12.9 (10.3-14.4) minutes performing the procedure. Post-intervention, interns had logged an additional median 2 (0-5) LPs and completed the procedure faster with an average time of 10.3 (9.7-11.3) minutes (p = 0.004). A median of 5 (4-7) major steps were missed at baseline, compared to 1 (1-2) at time of post-intervention assessment (p = 0.015).

CONCLUSION

Development of a brief educational video improved efficiency and competency amongst our intern class in performing an infant LP when viewed Just-In-Time. Similar efforts may improve education and performance of other rare (or decreasing in frequency) procedures within EM training.

Construction and Evaluation of a Realistic Low-Cost Model for Training in Chest-Tube Insertion

INTRODUCTION

Emergency thoracostomy is applied in life-threatening situations. Simulation plays a pivotal role in training in invasive techniques used mainly in stressful situations. Currently available commercial simulation models for thoracostomy have various drawbacks.

METHODS

We designed a thoracostomy phantom from discarded hospital materials and pigskin with underlying flesh. The phantom can be used alone for developing technical skills or mounted on an actor in simulation scenarios. Medical students, intensive care unit (ICU) and emergency department teams, and thoracostomy experts evaluated its technical fidelity and usefulness for achieving learning objectives in workshops.

RESULTS

The materials used to construct the phantom cost €47. A total of 12 experts in chest-tube placement and 73 workshop participants (12 ICU physicians and nurses, 20 emergency physicians and nurses, and 41 fourth-year medical students) evaluated the model. All groups rated the model's usefulness and the sensation of perforating the pleura highly. Experts rated the air release after pleura perforation lower than other groups. Lung reexpansion was the lowest rated item in all groups. Ratings of the appearance and feel of the model correlated strongly among all groups and experts. The ICU professionals rated the resistance encountered in introducing the chest drain lower than the other groups.

CONCLUSIONS

This low-cost, reusable, transportable, and highly realistic model is an attractive alternative to commercial models for training in chest-tube insertion skills.

Use of Low-Cost Task Trainer for Emergency Department Thoracotomy Training in General Surgery Residency Program

OBJECTIVE

Emergency department thoracotomy (EDT) is an uncommon but potentially lifesaving procedure that warrants familiarity with anatomy, instruments, and indications necessary for completion. To address this need, we developed a low-cost EDT trainer. The primary objective of this study was to compare the effectiveness of a low-cost EDT trainer to teach emergency department thoracotomy with a discussion-based teaching session. Secondary objective was to study the face validity of the low-cost EDT trainer.

DESIGN

A prospective 2-phase randomized control study was conducted. Participants were randomly divided into two groups. In phase one, baseline medical knowledge for both groups was assessed using a multiple-choice question pretest. In Group 1, each participant was taught EDT using a one-on-one discussion with a trauma surgeon, whereas Group 2 used the EDT trainer and debriefing for training. In phase 2 (1 month later), all participants completed a knowledge retention test and performed a videoed EDT using our EDT trainer, the video recordings were later reviewed by content experts blinded to the study participants using a checklist with a maximum score of 22. The participants also completed a reaction survey at the end of phase 2 of the study.

SETTING

OhioHealth Riverside Methodist Hospital, an urban tertiary care academic hospital in Columbus, Ohio.

PARTICIPANTS

Nine senior surgery residents from training years 3 to 5.

RESULTS

The mean score for the performance of the procedure for the simulation-based (Group 2) was significantly higher than that of the discussion-based (Group 1) (Rater 1: 21.2 ± 0.8 vs. 19.0 ± 2.0, p = 0.05, Rater 2: 20.4 ± 1.5 vs. 18.3±1.0, p = 0.04). Group 2 also was quicker than Group 1 in deciding to start the procedure by approximately 56 seconds. When comparing the mean pretest knowledge score to the mean knowledge retention score 30 days after training, the discussion-based group improved from 58.33% to 81.25% (p = 0.01); the simulation-trained group's scores remained at 68.33%. All the participants agreed or strongly agreed that the simulator provided a realistic opportunity to perform EDT and improved their confidence.

CONCLUSIONS

The results of this pilot study support our hypothesis that using a low-cost EDT trainer effectively improves general surgery residents' confidence and procedural skills scores in a simulated environment. Further training with low-cost simulators may provide surgical residents with deliberate practice opportunities and improve performance when learning low-frequency procedures.

Needs Assessment for a Resuscitative Thoracotomy Curriculum for General Surgery Residents in the Northeast Region

INTRODUCTION

Resuscitative thoracotomy (RT) is a high-acuity low occurrence (HALO) procedure with which general surgical resident (GSR) experience and confidence are unknown. We sought to identify and describe this educational gap by conducting a targeted needs assessment for an RT curriculum for GSRs.

METHODS

An online regional needs assessment survey was conducted for an RT curriculum for GSRs. The survey was developed by a group of trauma stakeholders and revised after being piloted on a small, representative group of GSRs. We surveyed GSRs in the Northeast region regarding their experience and confidence with RT; interest in an RT curriculum; and content, format, and scope for an RT curriculum.

RESULTS

The survey response rate was 43%, reflecting the viewpoints of GSRs at 8 major training centers across the Northeast. Only 13% of respondents were interested in pursuing a career in Trauma and Critical Care despite 97% of them training at a Level I Trauma Center. Twenty-nine percent and 33% of GSRs had ever assisted with or performed RT, respectively. Twenty-one percent of GSRs reported feeling confident performing RT. Most respondents (98%) agreed or strongly agreed that an RT curriculum would add value to their general surgery education. The most positively rated content topics were resuscitative maneuvers (100% positive responses [PR]), when to cease resuscitative efforts (100% PR), and morbidity and mortality associated with RT (98% PR). The most highly rated learning methods were individual RT simulation time (97% PR) and a tour of the trauma bay equipment (97% PR).

CONCLUSIONS

This needs assessment demonstrates a lack of experience and confidence with RT, a strong learner interest in an RT curriculum, and a desire for experiential learning methods. Learning objectives are defined herein, and the next steps involve developing educational materials for an RT curriculum for GSRs.

Development of a Gastight Thoracotomy Model for Investigation of Carbon Dioxide Field-Flooding Efficacy

Carbon dioxide (CO₂) field-flooding during cardiac surgery is a prevention technique to avoid blood-air contact and subsequent embolization. Although it was first used more than 60 years ago, there is still some perplexity around its efficacy, mainly because the gas is invisible and air embolization is difficult to quantify.

An accurate assessment of field-flooding can, therefore, best be performed in models where various methods can be tried in a controlled environment and evaluated with industrial-grade sensors. Multiple options are available for anatomically correct models that reproduce a sternotomy situation, but models for minimally invasive cardiac surgery are expensive and normally meant for training of surgical techniques where only the top side of the model is important.

We created a low-cost and “home-made” gastight mini-thoracotomy model with internal organs and left atrial incision to investigate CO₂ insufflation in a simulated minimally invasive mitral valve surgery. The model was validated with CO₂ field-flooding tests with a commercial diffuser, while three sensors continuously registered the local concentration of CO₂ gas.