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Background: Bolus administration of adrenaline during cardiopulmonary resuscitation (CPR) results in only short-term increases in systemic and cerebral perfusion pressure (CePP) with unclear effects on cerebral oxygenation. The aim of this study was to investigate the effects of bolus compared to continuous adrenaline administration on cerebral oxygenation in a porcine CPR model. Methods: After five minutes of cardiac arrest, mechanical CPR was performed for 15 min. Adrenaline (45 µg/kg) was administered either as a bolus every five minutes or continuously over the same period via an infusion pump. Main outcome parameter was brain tissue oxygen tension (PbtO2), secondary outcome parameters included mean arterial pressure (MAP), intracranial pressure (ICP), CePP and cerebral regional oxygen saturation (rSO2) as well as arterial and cerebral venous blood gases. Results: During CPR, mean MAP (45 ± 8 mmHg vs. 38 ± 8 mmHg; p = 0.0827), mean ICP (27 ± 7 mmHg vs. 20 ± 7 mmHg; p = 0.0653) and mean CePP (18 ± 8 mmHg vs. 18 ± 8 mmHg; p = 0.9008) were similar in the bolus and the continuous adrenaline group. Also, rSO2 (both 24 ± 6 mmHg; p = 0.9903) and cerebral venous oxygen saturation (18 ± 12% versus 27.5 ± 12%; p = 0.1596) did not differ. In contrast, relative PbtO2 reached higher values in the continuous group after five minutes of CPR and remained significantly higher than in the bolus group until the end of resuscitation. Conclusion: Continuous administration of adrenaline improved brain tissue oxygen tension compared with bolus administration during prolonged CPR.

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BACKGROUND: Survival for in-hospital cardiac arrest (IHCA) has declined since the COVID-19 pandemic. Because the burden of COVID-19 was uneven throughout the U.S., it remains unknown if top-performer hospitals in IHCA survival have remained top-performers since the pandemic. METHODS: Within Get With The Guidelines®-Resuscitation, we identified hospitals with at least 2 years of registry participation pre-pandemic (2017-2019) and post-pandemic (July 2020-2022) and with at least 20 IHCA cases in both periods. Using multivariable hierarchical models with hospital as a random effect and adjusting for patient and arrest characteristics, we calculated risk-standardized survival rates to discharge (RSSR) for IHCA at each hospital during the pre- and post-pandemic periods. We then assessed the correlation between a hospital's pre-pandemic and post-pandemic RSSR for IHCA, and whether the correlation differed by the proportion of Black or Hispanic IHCA patients at each hospital. RESULTS: A total of 243 hospitals were included, comprising 122,561 IHCAs (pre-pandemic: 57,601; post-pandemic: 64,960). Pre-pandemic, the mean RSSR was 26.8% (SD, 5.2%) whereas the mean RSSR post-pandemic was 21.7% (SD, 5.5%). There was good correlation between a hospital's pre- and post-pandemic RSSR: correlation of 0.55. When hospitals were categorized into tertiles based on the proportion of their IHCA patients who were Black or Hispanic, this correlation remained similar: 0.48, 0.68, and 0.45 (interaction P-value: 0.69) for hospitals in the upper, middle and lower tertiles, respectively. CONCLUSION: Although the COVID-19 pandemic affected the U.S. unevenly, there was good correlation in a hospital's performance for IHCA survival before and after the pandemic, even at hospitals caring for a larger proportion of Black and Hispanic patients. Future studies are needed to understand what characteristics of high-performing hospitals pre-pandemic allowed many to continue to excel in the post-pandemic period.

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AIM: Given challenges in collecting long-term outcomes for survivors of in-hospital cardiac arrest (IHCA), most studies have focused on in-hospital survival. We evaluated the correlation between a hospital's risk-standardized survival rate (RSSR) at hospital discharge for IHCA with its RSSR for long-term survival. METHODS: We identified patients ≥65 years of age with IHCA at 472 hospitals in Get With The Guidelines®-Resuscitation registry during 2000-2012, who could be linked to Medicare files to obtain post-discharge survival data. We constructed hierarchical logistic regression models to compute RSSR at discharge, and 30-day, 1-year, and 3-year RSSRs for each hospital. The association between in-hospital and long-term RSSR was evaluated with weighted Kappa coefficients. RESULTS: Among 56,231 Medicare beneficiaries (age 77.2 ± 7.5 years and 25,206 [44.8%] women), 10,536 (18.7%) survived to discharge and 8,485 (15.1%) survived to 30 days after discharge. Median in-hospital, 30-day, 1-year, and 3-year RSSRs were 18.6% (IQR, 16.7-20.4%), 14.9% (13.2-16.7%), 10.3% (9.1-12.1%), and 7.6% (6.8-8.8%), respectively. The weighted Kappa coefficient for the association between a hospital's RSSR at discharge with its 30-day, 1-year, and 3-year RSSRs were 0.72 (95% CI, 0.68-0.76), 0.56 (0.50-0.61), and 0.47 (0.41-0.53), respectively. CONCLUSIONS: There was a strong correlation between a hospital's RSSR at discharge and its 30-day RSSR for IHCA, although this correlation weakens over time. Our findings suggest that a hospital's RSSR at discharge for IHCA may be a reasonable surrogate of its 30-day post-discharge survival and could be used by Medicare to benchmark hospital performance for this condition without collecting 30-day survival data.

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DISCLAIMER: In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time. PURPOSE: Vasoactive medications are used during advanced cardiac life support (ACLS) to shunt oxygenated blood to vital organs and after return of spontaneous circulation (ROSC) to maintain hemodynamic goals. However, limited evidence exists to support vasoactive medication recommendations in such scenarios, and it is unknown how practices vary among emergency departments across the US. METHODS: A survey questionnaire (15 questions) was electronically distributed to emergency medicine pharmacists (EMPs) in the US through various professional listservs. Demographic information, American Heart Association ACLS algorithm medication use, and use of continuous vasopressor infusions and adjunct medications following ROSC were assessed and are reported descriptively. RESULTS: The survey was distributed to 764 EMPs, with a 23% response rate from a wide geographic distribution and 48% of respondents practicing in academic medical centers. Epinephrine dosing and administration during cardiac arrest were reported by most to be in accordance with ACLS cardiac arrest algorithms. Calcium, magnesium sulfate, and sodium bicarbonate were the most common adjunct intravenous medications given during cardiac arrest. Norepinephrine was the first-choice vasopressor (81%) for post-ROSC hypotension, while epinephrine was preferred less frequently (17%). Antibiotics and sodium bicarbonate were the most frequently administered post-ROSC adjunct medications. CONCLUSION: This survey of a geographically diverse group of EMPs demonstrated high ACLS algorithm adherence for epinephrine during cardiac arrest with frequent additional administration of nonalgorithm medications. Sodium bicarbonate and calcium were the most frequently administered adjunct medications during cardiac arrest, while sodium bicarbonate and antibiotics were the most frequently used adjunct medications following ROSC. Norepinephrine was the most commonly used vasopressor following ROSC.

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BACKGROUND: Ischemic post-conditioning (IPoC) has been shown to improve outcomes in limited pre-clinical models. As down-time is often unknown, this technique needs to be investigated over a range of scenarios. As this tool limits reperfusion injury, there may be limited benefit or even harm after short arrest and limited ischemia-reperfusion injury. METHODS: Eighteen male Wistar rats underwent 7 min of asphyxial arrest. Animals randomized to IPoC received a 20 s pause followed by 20 s of compressions, repeated four times, initiated 40 s into cardiopulmonary resuscitation. If return of spontaneous circulation (ROSC) was achieved, epinephrine was titrated to mean arterial pressure (MAP) of 70 mmHg. Data were analyzed using t-test or Mann-Whitney test. Significance set at p ≤ 0.05. RESULTS: The rate of ROSC was equivalent in both groups, 88%. There was no statistically significant difference in time to ROSC, epinephrine required post ROSC, carotid flow, or peak lactate at any timepoint. There was a significantly elevated MAP with IPoC, 90.7 mmHg (SD 13.9), as compared to standard CPR, 76.7 mmHg (8.5), 2 h after ROSC, p = 0.03. CONCLUSIONS: IPoC demonstrated no harm in a model of short arrest using a new arrest etiology for CPR based IPoC intervention in a rat model.

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AIMS: To assess the impact of learner-participation and instructor-led simulation videos on nurses' CPR skills, focusing on iterative learning to boost proficiency in ACLS. BACKGROUND: Advanced cardiac life support (ACLS) training is crucial for nurses, especially to improve cardiopulmonary resuscitation (CPR) proficiency, for which an effective training strategy is needed. DESIGN: A quasi-experimental, pretest-posttest design was implemented to assess the impact of self-simulation and model simulation videos on sustaining CPR education. METHODS: The research was carried out at a university hospital in Korea from August 2021 to July 2022. A total of 110 nurses were allocated into three groups based on the building of their workplace in the hospital. Each group watched training videos at 4-month intervals after the simulation training. The self-video group viewed simulations featuring their participation, while the model video group watched instructor-led simulations. A comparison group participated in the simulations without subsequent video boosting. RESULTS: Both the self-video and model video groups exhibited significantly superior ACLS performance compatred with the comparison group at both four months (H = 70.33, p <.001) and eight months (H = 81.52, p <.001) following the intervention, with large effect sizes (self-video vs. comparison: d = 4.73 at four months, d = 12.54 at eight months; model video vs. comparison: d = 4.53 at four months, d = 11.01 at eight months). ACLS knowledge scores also significantly increased over time in both intervention groups (self-video: χ² = 22.09, p <.001; model video: χ² = 24.13, p <.001), but not in the comparison group (χ² = 3.75, p =.153). There were no significant differences among the groups in terms of CPR self-efficacy or stress at either time point. CONCLUSION: Supplementary training using simulation videos is an effective method for maintaining and enhancing nurses' ACLS competency, offering a sustainable approach to repetitive CPR training. This study underscores the value of incorporating recorded simulation videos in clinical training, offering insights into efficient methods for continuous learning and CPR proficiency among nursing professionals.

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BACKGROUND: Cardiopulmonary resuscitation is a crucial skill for emergency medical services. As high-risk-low-frequency events pose an immense mental load to providers, concepts of crew resource management, non-technical skills and the science of human errors are intended to prepare healthcare providers for high-pressure situations. However, medical errors occur, and organizations and institutions face the challenge of providing a blame-free error culture to achieve continuous improvement by avoiding similar errors in the future. In this case, we report a critical medical error during an anaphylaxis-associated cardiac arrest, its handling and the unexpected yet favourable outcome for the patient. CASE PRESENTATION: During an out-of-hospital cardiac arrest due to chemotherapy-induced anaphylaxis, a patient received a 10-fold dose of epinephrine due to shortcomings in communication and standardization via a central venous port catheter. The patient converted from a non-shockable rhythm into a pulseless ventricular tachycardia and subsequently into ventricular fibrillation. The patient was cardioverted and defibrillated and had a return of spontaneous circulation with profound hypotension only 6 min after the administration of 10 mg epinephrine. The patient survived without any residues or neurological impairment. CONCLUSIONS: This case demonstrates the potential deleterious effects of shortcomings in communication and deviation from standard protocols, especially in emergencies. Here, precise instructions, closed-loop communication and unambiguous labelling of syringes would probably have avoided the epinephrine overdose central to this case. Interestingly, this serious error may have saved the patient's life, as it led to the development of a shockable rhythm. Furthermore, as the patient was still in profound hypotension after administering 10 mg of epinephrine, this high dose might have counteracted the severe vasoplegic state in anaphylaxis-associated cardiac arrest. Lastly, as the patient was receiving care for advanced malignancy, the likelihood of termination of resuscitation in the initial non-shockable cardiac arrest was significant and possibly averted by the medication error.

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BACKGROUND: The likelihood of return of spontaneous circulation with conventional advanced life support is known to have an exponential decline and therefore neurological outcome after 20 min in patients with a cardiac arrest is poor. Initiation of venoarterial ExtraCorporeal Membrane Oxygenation (ECMO) during resuscitation might improve outcomes if used in time and in a selected patient category. However, previous studies have failed to significantly reduce the time from cardiac arrest to ECMO flow to less than 60 min. We hypothesize that the initiation of Extracorporeal Cardiopulmonary Resuscitation (ECPR) by a Helicopter Emergency Medical Services System (HEMS) will reduce the low flow time and improve outcomes in refractory Out of Hospital Cardiac Arrest (OHCA) patients. METHODS: The ON-SCENE study will use a non-randomised stepped wedge design to implement ECPR in patients with witnessed OHCA between the ages of 18-50 years old, with an initial presentation of shockable rhythm or pulseless electrical activity with a high suspicion of pulmonary embolism, lasting more than 20, but less than 45 min. Patients will be treated by the ambulance crew and HEMS with prehospital ECPR capabilities and will be compared with treatment by ambulance crew and HEMS without prehospital ECPR capabilities. The primary outcome measure will be survival at hospital discharge. The secondary outcome measure will be good neurological outcome defined as a cerebral performance categories scale score of 1 or 2 at 6 and 12 months. DISCUSSION: The ON-SCENE study focuses on initiating ECPR at the scene of OHCA using HEMS. The current in-hospital ECPR for OHCA obstacles encompassing low survival rates in refractory arrests, extended low-flow durations during transportation, and the critical time sensitivity of initiating ECPR, which could potentially be addressed through the implementation of the HEMS system. When successful, implementing on-scene ECPR could significantly enhance survival rates and minimize neurological impairment. TRIAL REGISTRATION: Clinicaltyrials.gov under NCT04620070, registration date 3 November 2020.

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Objective: In South Korea, the National Fire Agency (NFA) conducted a pilot project on the advanced life support (ALS) protocol, including epinephrine administration, to improve the survival rate of out-of hospital cardiac arrest (OHCA). Therefore, this study aimed to evaluate the effect of the ALS protocol of NFA on prehospital return of spontaneous circulation (PROSC) in patients with OHCA. Methods: This study was conducted on patients with adult-presumed cardiac arrest between January and December 2020. The main factor of interest was ambulance type according to the ALS protocol, which was divided into dedicated ALS(DA), smartphone-based ALS(SALS), and non-dedicated ALS(Non-DA), and the main analysis factor was PROSC. Multivariate logistic regression analysis was performed. Results: During the study period, a total of 18,031 adult patients with OHCA were treated by the emergency medical service (EMS), including 7,520 (41.71 %) DA, 2,622 (14.54 %) SALS, and 7,889 (43.75 %) Non-DA. The prehospital ROSC ratio was 13.19% for the DA, 11.17% for the SALS, and 7.91% for the Non-DA ambulance (P < 0.01). Compared with that of the DA group, the odds ratio (95% confidence interval [CI]) for PROSC ratio in the SALS and Non-DA groups were 0.97 (0.82-1.15) and 0.57 (0.50-0.65), respectively. It was shown that the PROSC ratio of the DA group was higher than that of the Non-DA group and was not lower than that of the SALS group. Conclusion: ALS protocol intervention was associated with difference in PROSC rates. Therefore, continuous efforts on the systemic implementation of the ALS protocol to improve OHCA outcomes are necessary.

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Study objective: To evaluate the cost-effectiveness of EtCO2 monitoring during in-hospital cardiorespiratory arrest (CA) care outside the intensive care unit (ICU) and emergency room department. Design: We performed a cost-effectiveness analysis based on a simple decision model cost analysis and reported the study using the CHEERS checklist. Model inputs were derived from a retrospective Brazilian cohort study, complemented by information obtained through a literature review. Cost inputs were gathered from both literature sources and contacts with hospital suppliers. Setting: The analysis was carried out from the perspective of a tertiary referral hospital in a middle-income country. Participants: The study population comprised individuals experiencing in-hospital CA who received cardiopulmonary resuscitation (CPR) by rapid response team (RRT) in a hospital ward, not in the ICU or emergency room department. Interventions: Two strategies were assumed for comparison: one with an RRT delivering care without capnography during CPR and the other guiding CPR according to the EtCO2 waveform. Main outcome measures: Incremental cost-effectiveness rate (ICER) to return of spontaneous circulation (ROSC), hospital discharge, and hospital discharge with good neurological outcomes. Results: The ICER for EtCO2 monitoring during CPR, resulting in an absolute increase of one more case with ROSC, hospital discharge, and hospital discharge with good neurological outcome, was calculated at Int$ 515.78 (361.57-1201.12), Int$ 165.74 (119.29-248.4), and Int$ 240.55, respectively. Conclusion: In managing in-hospital CA in the hospital ward, incorporating EtCO2 monitoring is likely a cost-effective measure within the context of a middle-income country hospital with an RRT.

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Objective: Blood-based biomarkers play a central role in the diagnosis and treatment of critically ill patients, yet none are routinely measured during the intra-arrest phase of out-of-hospital cardiac arrest (OHCA). Our objective was to describe methodological aspects, sources of evidence, and gaps in research surrounding intra-arrest blood-based biomarkers for OHCA. Methods: We used scoping review methodology to summarize existing literature. The protocol was designed a priori following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Extension for Scoping Reviews. Inclusion criteria were peer-reviewed scientific studies on OHCA patients with at least one blood draw intra-arrest. We excluded in-hospital cardiac arrest and animal studies. There were no language, date, or study design exclusions. We conducted an electronic literature search using PubMed and Embase and hand-searched secondary literature. Data charting/synthesis were performed in duplicate using standardized data extraction templates. Results: The search strategy identified 11,834 records, with 118 studies evaluating 105 blood-based biomarkers included. Only eight studies (7%) had complete reporting. The median number of studies per biomarker was 2 (interquartile range 1-4). Most studies were conducted in Asia (63 studies, 53%).  Only 22 studies (19%) had blood samples collected in the prehospital setting, and only six studies (5%) had samples collected by paramedics. Pediatric patients were included in only three studies (3%). Out of eight predefined biomarker categories of use, only two were routinely assessed: prognostic (97/105, 92%) and diagnostic (61/105, 58%). Conclusions: Despite a large body of literature on intra-arrest blood-based biomarkers for OHCA, gaps in methodology and knowledge are widespread.

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Cardiac arrest (CA) is a common and potentially avoidable cause of death, while constituting a substantial public health burden. Although survival rates for out-of-hospital cardiac arrest (OHCA) have improved in recent decades, the prognosis for refractory OHCA remains poor. The use of veno-arterial extracorporeal membrane oxygenation during cardiopulmonary resuscitation (ECPR) is increasingly being considered to support rescue measures when conventional cardiopulmonary resuscitation (CPR) fails. ECPR enables immediate haemodynamic and respiratory stabilisation of patients with CA who are refractory to conventional CPR and thereby reduces the low-flow time, promoting favourable neurological outcomes. In the case of refractory OHCA, multiple studies have shown beneficial effects in specific patient categories. However, ECPR might be more effective if it is implemented in the pre-hospital setting to reduce the low-flow time, thereby limiting permanent brain damage. The ongoing ON-SCENE trial might provide a definitive answer regarding the effectiveness of ECPR. The aim of this narrative review is to present the most recent literature available on ECPR and its current developments.

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BACKGROUND: It is proposed that patients in single-occupancy patient rooms (SPRs) carry a risk of less surveillance by nursing and medical staff and that resuscitation teams need longer to arrive in case of in-hospital cardiac arrest (IHCA). Higher incidences of IHCA and worse outcomes after cardiopulmonary resuscitation (CPR) may be the result. OBJECTIVES: Our study examines whether there is a difference in incidence and outcomes of IHCA before and after the transition from a hospital with multibedded rooms to solely SPRs. METHODS: In this prospective observational study in a Dutch university hospital, as a part of the Resuscitation Outcomes in the Netherlands study, we reviewed all cases of IHCA on general adult wards in a period of 16.5 months before to 16.5 months after the transition to SPRs. RESULTS: During the study period, 102 CPR attempts were performed: 51 in the former hospital and 51 in the new hospital. Median time between last-seen-well and start basic life support did not differ significantly, nor did median time to arrival of the CPR team. Survival rates to hospital discharge were 30.0% versus 29.4% of resuscitated patients (p = 1.00), with comparable neurological outcomes: 86.7% of discharged patients in the new hospital had Cerebral Performance Category 1 (good cerebral performance) versus 46.7% in the former hospital (p = .067). When corrected for telemetry monitoring, these differences were still nonsignificant. CONCLUSIONS: The transition to a 100% SPR hospital had no negative impact on incidence, survival rates, and neurological outcomes of IHCAs on general adult wards.

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Clinical practice has benefited from new methodologies such as realistic simulation (RS). RS involves recreating lifelike scenarios to more accurately reflect real clinical practice, enhancing learners' skills and decision-making within controlled environments, and experiencing remarkable growth in medical education. However, RS requires substantial financial investments and infrastructure. Hence, it is essential to determine the effectiveness of RS in the development of skills among medical students, which will improve the allocation of resources while optimizing learning. This cross-sectional study was carried out in the simulation laboratory of a medical school, and the performance of students who underwent two different curriculum matrices (without RS and with RS, from 2021 to 2022) in the Advanced Cardiac Life Support (ACLS) course was compared. This test was chosen considering that the competencies involved in cardiac life support are essential, regardless of the medical specialty, and that ACLS is a set of life-saving protocols used worldwide. We observed that the impact of RS can be different for practical abilities when compared with the theoretical ones. There was no correlation between the general academic performance and students' grades reflecting the RS impact. We conclude that RS leads to less remediation and increased competence in practical skills. RS is an important learning strategy that allows repeating, reviewing, and discussing clinical practices without exposing the patient to risks.NEW & NOTEWORTHY Realistic simulation (RS) positively affected the performance of the students differently; it had more influence on practical abilities than theoretical knowledge. No correlation between the general academic performance and grades of the students without RS or with RS was found, providing evidence that RS is an important tool in Advanced Cardiac Life Support education.

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OBJECTIVE: This study aimed to evaluate the impact of American Heart Association (AHA) advanced cardiovascular life support (ACLS) education and training on long-term retention of ACLS knowledge and confidence in Doctor of Pharmacy (PharmD) students. METHODS: This multicenter study included PharmD students who received ACLS training through different means: 1-hour didactic lecture (didactic), 1-hour didactic lecture with 2-hour skills practice (didactic + skills), and comprehensive AHA ACLS certification through an elective course (elective-certification). Students completed a survey before training, immediately after training, and at least 6-12 months after training to assess demographics and ACLS confidence and knowledge. The primary outcome was a passing score, defined as ≥ 84% on the long-term knowledge assessment. Secondary outcomes included overall knowledge score and perceived confidence, assessed using the Dreyfus model. RESULTS: The long-term assessment was completed by 160 students in the didactic group, 66 in the didactic + skills group, and 62 in the elective-certification group. Six (4%), 8 (12%), and 14 (23%) received a passing score on the long-term knowledge assessment in the didactic, didactic + skills, and elective-certification groups, respectively. The median (IQR) scores on the long-term knowledge assessment were 50% (40-60), 60% (50-70), and 65% (40-80) in the 3 groups. On the long-term assessment, confidence was higher in the elective-certification group, demonstrated by more self-ratings of competent, proficient, and expert, and fewer self-ratings of novice and advanced beginner. CONCLUSION: Long-term retention of ACLS knowledge was low in all groups, but was higher in students who received AHA ACLS certification through an ACLS elective course.

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Cardiac arrest is common and deadly, affecting up to 700 000 people in the United States annually. Advanced cardiac life support measures are commonly used to improve outcomes. This "2023 American Heart Association Focused Update on Adult Advanced Cardiovascular Life Support" summarizes the most recent published evidence for and recommendations on the use of medications, temperature management, percutaneous coronary angiography, extracorporeal cardiopulmonary resuscitation, and seizure management in this population. We discuss the lack of data in recent cardiac arrest literature that limits our ability to evaluate diversity, equity, and inclusion in this population. Last, we consider how the cardiac arrest population may make up an important pool of organ donors for those awaiting organ transplantation.

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Introduction: Emergency medicine (EM) trainees must learn to manage multiple patients simultaneously using task-switching. While prior work has demonstrated that multipatient scenarios can be an effective teaching tool for task-switching, few studies have shown how simulation can be used to assess residents' ability to manage multiple patients effectively. The goal of this curriculum was to provide a formative assessment of core EM skills by employing a series of simulations designed to require frequent task-switching. Methods: This exercise consisted of three simulation scenarios running in sequence. The first scenario involved medical resuscitation and advanced cardiac life support, the second required learners to manage two patients involved in a trauma using advanced trauma life support, and the final scenario tested learners' ability to communicate bad news. Faculty observers used scenario-specific checklists to identify gaps in content knowledge, communication skills, and task-switching abilities during reflective debriefs. These checklists were analyzed to identify trends. All participants were sent a postsession evaluation. Items omitted by >50% of participants were flagged for review. Results: Flagged items included asking for finger-stick glucose, verbalizing a backup intubation plan, specifying type of blood products, and asking for team input. Nine of 12 participants completed the postsession evaluation, noting that they agreed or strongly agreed the simulation was relevant and promoted reflection on task-switching skills. Discussion: This simulation provides educators with a tool to facilitate reflective feedback with senior EM learners regarding their core resuscitation, leadership, and task-switching skills and could be further adapted to promote deliberate practice.

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BACKGROUND: Cardiac Arrest (CA) is one of the leading causes of death, either inside or outside hospitals. Recently, the use of creative teaching strategies, such as simulation, has gained popularity in Cardio Pulmonary Resuscitation (CPR) instruction. This study aimed to assess the effect of High-Fidelity Simulation (HFS) training on nursing students' self-efficacy, attitude, and anxiety in the context of Advanced Cardiac Life Support (ACLS). METHODOLOGY: The study design is quasi-experimental employing a pre-test and post-test approach during April and May 2023. A convenient sample of 60 undergraduate nursing students in a 4-year class from a nursing college at the Arab American University/ Palestine (AAUP) participated in this study. The data were analyzed using a paired sample t-test in SPSS program version 26. Three data collection tools were used pre- and post-intervention; the Resuscitation Self-Efficacy Scale (RSES), The Attitudinal instrument, and the State Anxiety Inventory (SAI). RESULTS: The total number of nursing students was 60, out of them (56.7%) were female, while the mean age was (22.2) years. Improvements were seen in all four domains of self-efficacy following HFS training: recognition, debriefing, recording, responding and rescuing, and reporting. (t (59) = 26.80, p < 0.001, confidence interval [29.32, 34.05]). After receiving HFS training on ACLS, the post-intervention for the same group attitude scores significantly increased from 32.83 (SD = 15.35) to 54.58 (SD = 8.540) for emotion, from 6.72 (SD = 2.44) to 10.40 (SD = 1.40) for behavior, and from 7.03 (SD = 2.03) to 10.33 (SD = 1.42) for cognitive. The anxiety level decreased post-simulation from 3.53 (SD = 0.3) to 2.14 (SD = 0.65), which was found to be statistically significant (t(59) = 16.68, p < 0.001, 95% CI [1.22 to 1.55]). Female students (M = 73.18), students who observed a real resuscitation (M = 71.16), and who were satisfied with their nursing major (M = 72.17) had significantly higher self-efficacy scores post-simulation. CONCLUSION: The HFS can be recommended as an effective training strategy among nursing students. The ACLS training-based HFS was effective in improving the students' self-efficacy and attitudes and decreasing their anxiety.

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BACKGROUND: Prehospital factors play a vital role in out-of-hospital cardiac arrest (OHCA) survivability, and they vary between countries and regions. We investigated the prehospital factors associated with OHCA outcomes in a single metropolitan city in the Republic of Korea. METHODS: This study included adult medical OHCA patients enrolled prospectively, using data from the citywide OHCA registry for patients registered between 2018 and 2021. The primary outcome was survival to hospital discharge. Multivariable logistic regression analysis was conducted to determine the factors associated with the study population's clinical outcomes, adjusting for covariates. We performed a sensitivity analysis for clinical outcomes only for patients without prehospital return of spontaneous circulation prior to emergency medical service departure from the scene. RESULTS: In multivariable logistic regression analysis, older age (odds ratio [OR] 0.96; 95% confidence interval [CI] 0.95-0.97), endotracheal intubation (adjusted odds ratio [aOR] 0.29; 95% [CIs] 0.17-0.51), supraglottic airway (aOR 0.29; 95% CI 0.17-0.51), prehospital mechanical chest compression device use (OR 0.13; 95% CI 0.08-0.18), and longer scene time interval (OR 0.96; 95% CI 0.93-1.00) were negatively associated with survival. Shockable rhythm (OR 24.54; 95% CI 12.99-42.00), pulseless electrical activity (OR 3.11; 95% CI 1.74-5.67), and witnessed cardiac arrest (OR 1.59; 95% CI 1.07-2.38) were positively associated with survival. In the sensitivity analysis, endotracheal intubation, supraglottic airway, prehospital mechanical chest compression device use, and longer scene time intervals were associated with significantly lower survival to hospital discharge. CONCLUSIONS: Regional resuscitation protocol should be revised based on the results of this study, and modifiable prehospital factors associated with lower survival of OHCA should be improved.

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