Audience: This simulation case was created for emergency medicine (EM) residents at all levels of training.
Background: Cardiac electrical storm (ES) is commonly defined as three or more episodes of sustainedventricular tachycardia, ventricular fibrillation, or three shocks from an implantable defibrillator within a 24hour period.1 This can occur in up to 30-40% of patients with implantable defibrillators; however, it may alsopresent in a wide variety of patients, including those with structural heart disease, myocardial infarction,electrolyte disturbances, and channelopathies.2,3 With each subsequent episode of ventricular arrhythmia,the arrhythmogenic potential of the heart may increase secondary to increased intracellular calciumdysregulation, myocardial injury, and increased endogenous release of catecholamines. The increased painand catecholamine release from cardioversion/defibrillation and exogenous epinephrine during cardiacarrest further exacerbates ES.2 This carries a significant mortality risk of up to 12% in the first 48 hours.3This case involves a basic knowledge of the Advanced Cardiac Life Support (ACLS) for ventricular tachycardia,both with and without a pulse, and the application of Sgarbossa criteria in a patient with an ST elevationmyocardial infarction (STEMI) which makes it ideal for the PGY-1. However, the case quickly becomesrefractory to the basic management prescribed in ACLS, requiring trouble shooting and quick thinking aboutdeeper pathophysiology, a skill that is crucial for all emergency medicine physicians. There are multiple waysto troubleshoot this case, making for a good variety of discussion and recent literature review on thecomplexities of a relatively common arrhythmia, ventricular tachycardia.
Educational Objectives: By the end of this simulation, learners should be able to: 1) recognize unstableventricular tachycardia and initiate ACLS protocol, 2) practice dynamic decision making by switching betweenvarious ACLS algorithms, 3) create a thoughtful approach for further management of refractory ventriculartachycardia, 4) interpret electrocardiogram (ECG) with ST-segment elevation (STE) and left bundle branchblock (LBBB), 5) appropriately disposition the patient and provide care after return of spontaneous circulation(ROSC), 6) navigate a difficult conversation with the patient’s husband when she reveals that the patient’swishes were to not be resuscitated.
Educational Methods: This simulation was performed using high-fidelity simulation followed by animmediate debriefing with nine learners who directly participated in the SIM and twenty-three residents,who were online observers via Zoom. This case was done during our conference day, and there were a totalof approximately forty total learners comprised of medical students, PGY-1, PGY-2 and PGY-3 residents. Therewere several medical students who also observed via Zoom but were not surveyed, and the survey was sentto 32 learners. The case was run three separate times with each session consisting of three-four learners atthe same level of training, with other learners in the same level of training observing via Zoomä videoplatform. Since we can only have a team of three-four learners participate per group during simulation, therest of the learners were observing the case and the debrief. There was one simulation instructor and one technician.
Research Methods: We sent an online survey to all the participants and the observers after the debrief viasurveymonkey.com. The survey collected responses to the following statements: (1) the case was believable,(2) the case had right amount of complexity, (3) the case helped in improving medical knowledge and patientcare, (4) the simulation environment gave me a real-life experience and, (5) the debriefing session aftersimulation helped improve my knowledge. Likert scale was used to collect the responses.
Results: A total of thirteen participants responded to the survey. One hundred percent of them eitherstrongly agreed or agreed that the case was believable and that it helped in improving medical knowledgeand patient care. Fifty-four percent strongly agreed, 38 percent agreed, and eight percent were neutral aboutthe case having the right amount of complexity. Thirty one percent strongly agreed, 61 percent agreed, andeight percent were neutral about the case giving them real-life experience. All of them agreed that thedebriefing session helped them improve their knowledge.
Discussion: The high-fidelity simulation case was helpful with educating learners with ventricular tachycardiaand fibrillation. Learners learned how to switch between various ACLS algorithms and how to manage apatient with refractory ventricular fibrillation. Learners enforced their knowledge in how to communicatewith patient’s family members when the patient does not want resuscitation.
