2023 American Heart Association focused update on the management of patients with cardiac arrest or life-threatening toxicity due to poisoning: an update to the American Heart Association guidelines for cardiopulmonary resuscitation and emergency cardiovascular care

In this focused update, the American Heart Association provides updated guidance for resuscitation of patients with cardiac arrest, respiratory arrest, and refractory shock due to poisoning. Based on structured evidence reviews, guidelines are provided for the treatment of critical poisoning from benzodiazepines, ß-adrenergic receptor antagonists (also known as ß-blockers), L-type calcium channel antagonists (commonly called calcium channel blockers), cocaine, cyanide, digoxin and related cardiac glycosides, local anesthetics, methemoglobinemia, opioids, organophosphates and carbamates, sodium channel antagonists (also called sodium channel blockers), and sympathomimetics. Recommendations are also provided for the use of venoarterial extracorporeal membrane oxygenation. These guidelines discuss the role of atropine, benzodiazepines, calcium, digoxin-specific immune antibody fragments, electrical pacing, flumazenil, glucagon, hemodialysis, hydroxocobalamin, hyperbaric oxygen, insulin, intravenous lipid emulsion, lidocaine, methylene blue, naloxone, pralidoxime, sodium bicarbonate, sodium nitrite, sodium thiosulfate, vasodilators, and vasopressors for the management of specific critical poisonings.

Principales recomendaciones de reanimación cardiopulmonar y atención cardiovascular de emergencia para el año 2020 / Best practice recommendations for cardiopulmonary resuscitation and emergency cardiovascular care for 2020

Las altas tasas de letalidad y mortalidad a causa del paro cardiorespiratorio por fibrilación ventricular son considerados un problema de salud pública, cobrando gran relevancia la posibilidad de que sean revertidos rápidamente con la presencia de profesionales capacitados o por personal "lego" actualizados en reanimación cardiopulmonar. El objetivo del presente artículo de revisión fue analizar las nuevas recomendaciones de la American Heart Association para reanimación cardiopulmonar y atención cardiovascular de emergencia para el año 2020.

High rates of lethality and mortality due to ventricular fibrillation cardiorespiratory arrest are considered a public health problem, Thus, the possibility of reversed quickly by trained professionals or updated "lego" staff in cardiopulmonary resuscitation is taking great relevance. The objective of this review article was to discuss the New Recommendations of the American Heart Association for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care for 2020.

Evaluating pediatric advanced life support in emergency medical services with a performance and safety scoring tool.

INTRODUCTION: Pediatric out-of-hospital cardiac arrests (P-OHCA) are infrequent, have low survival rates, and often have poor neurologic outcomes. Recent evidence indicates that high-performance emergency medical service (EMS) care can improve outcomes. OBJECTIVES: To evaluate Pediatric Advanced Life Support (PALS) guideline performance in the out of hospital setting and introduce an easy-to-use tool that scores guideline compliance and patient safety. METHODS: We observed EMS teams responding to standardized pediatric resuscitation simulations. Teams were dispatched to a mock assisted living home for a choking 6-year-old with a complex medical history. The child manikin was presented as unconscious and apneic, with bradycardic pulse. Teams were expected to monitor vitals; initiate airway management and cardiopulmonary resuscitation (CPR); and establish vascular access and administer epinephrine based on PALS guidelines. We developed a tool to score the quality of care for critical tasks and had a clinical expert evaluate technical performance using blinded video review. RESULTS: We observed 34 EMS teams providing care in P-OHCA simulations. Teams were proficient at assessing vitals, using correct-sized equipment, intubation, and confirmation of tube placement. Teams were delayed in initiating positive pressure ventilation (PPV) and chest compressions. Many teams (53%) deviated from guidelines in chest compressions with 17 (50%) performing continuous compressions before establishing an advanced airway and one (3%) not performing compressions. Similarly, 20 (59%) teams deviated from medication guidelines with 12 (35%) failing to administer epinephrine, six (18%) underdosing, and two (6%) overdosing by more than 20%. CONCLUSION: EMS teams were successful in selecting the appropriate equipment but delayed initiating ventilations in a child with severe bradycardia. We also noted frequent use of continuous chest CC rather than the AHA recommended 15:2 ratio. We developed a scoring tool with time-based criteria that can be used to assess guideline compliance, individual performance, and/or educational effectiveness.

Optimizing airway management and ventilation during prehospital advanced life support in out-of-hospital cardiac arrest: A narrative review.

Airway management and ventilation are essential components of cardiopulmonary resuscitation to achieve oxygen delivery in order to prevent hypoxic injury and increase the chance of survival. Weighing the relative benefits and downsides, the best approach is a staged strategy; start with a focus on high-quality chest compressions and defibrillation, then optimize mask ventilation while preparing for advanced airway management with a supraglottic airway device. Endotracheal intubation can still be indicated, but has the largest downsides of all advanced airway techniques. Whichever stage of airway management, ventilation and chest compression quality should be closely monitored. Capnography has many advantages and should be used routinely. Optimizing ventilation strategies, harmonizing ventilation with mechanical chest compression devices, and implementation in complex and stressful environments are challenges we need to face through collaborative innovation, research, and implementation.

An evaluation of manual tidal volume and respiratory rate delivery during simulated resuscitation.

INTRODUCTION: Excessive minute ventilation during cardiac arrest may cause lung injury and decrease the effectiveness of cardiopulmonary resuscitation (CPR). However, little is known about how clinicians deliver tidal volumes and respiratory rates during CPR. METHODS: In this cross-sectional study, licensed practitioners attending an American Heart Association (AHA) Advanced Cardiac Life Support (ACLS) course performed CPR and manual ventilation on a high-fidelity simulator during the megacode portion of the course. Delivered tidal volumes and respiratory rates were measured on a monitor. During the first scenario, results were not displayed to participants, but were displayed during the second scenario. RESULTS: Fifty-two clinicians participated in this study. Average height was 169 (157,178) cm. Pre-monitor display tidal volumes delivered were larger in male participants compared to female participants (684.6 ± 134.4 vs 586.7 ± 167.6 ml, P = 0.05). Those using medium-sized gloves delivered smaller tidal volumes than those using small or large gloves. Twenty-two (42.3%) delivered tidal volume in the range of 5-8 ml/kg of predicted body weight for the simulation manikin, and 35 (67.3%) delivered tidal volumes with >20% variability among breaths. All participants met the target respiratory rate around 10 breaths/min. CONCLUSION: Tidal volume delivery varied greatly during manual ventilation and fewer than half participants delivered tidal volume at 5-8 ml/kg to the manikin. Sex and glove size appeared to impact tidal volume delivery when the participants were unaware of what they were delivering. Participants were able to meet the target respiratory rate around 10 without audio or visual feedback.

Innovation in resuscitation: A novel clinical decision display system for advanced cardiac life support.

INTRODUCTION: The Advanced Cardiac Life Support (ACLS) Clinical Decision Display System (CDDS) is a novel application designed to optimize team organization and facilitate decision-making during ACLS resuscitations. We hypothesized that resuscitation teams would more consistently adhere to ACLS guideline time intervals in simulated resuscitation scenarios with the CDDS compared to without. METHODS: We conducted a simulation-based, non-blinded, randomized, crossover-design study with resuscitation teams comprised of Emergency Medicine physicians, registered nurses, critical care technicians, and paramedics. Each team performed 4 ACLS scenarios in randomized sequences, half with the CDDS and half without. We analyzed the resuscitations and recorded the times of interventions that have defined intervals by ACLS: rhythm checks, epinephrine administration, and shock delivery. In addition, we surveyed each resuscitation team regarding their experience using the CDDS. RESULTS: On average, teams performed rhythm checks 4.9 s closer to ACLS guidelines with the CDDS (p = 0.0358). Teams were also more consistent; on average, teams reduced the variation of time between consecutive doses of epinephrine by 45% (p = 0.0001) and defibrillation by 47% (p < 0.0001). Ninety-eight percent of participants indicated they would use the CDDS if available in real cardiac arrests. CONCLUSIONS: This study demonstrates that the CDDS improves the accuracy and precision of timed ACLS interventions in a simulated setting. Resuscitation teams were strongly in favor of utilizing the CDDS in clinical practice. Further investigations of the introduction of the platform into real time clinical environments will be needed to assess true efficacy and patient outcomes.

After a century, Epinephrine's role in cardiac arrest resuscitation remains controversial.

BACKGROUND: Epinephrine is recommended in contemporary educational efforts by the American Heart Association (AHA) as central to adult Advanced Cardiac Life Support (ACLS). However, the International Liaison Committee on Resuscitation (ILCOR) 2019 recommendations update describes large evidentiary gaps for epinephrine use in cardiopulmonary resuscitation, highlighting that clinical and experimental evidence do not support the current AHA recommendations. OBJECTIVE: This controversies article was written as a response to updated AHA and ILCOR adult ACLS recommendations in late 2019. This report summarizes and evaluates the evidence surrounding epinephrine for cardiac arrest with a focus on the historical perspective of epinephrine research. DISCUSSION: According to the 2019 AHA ACLS guidelines, epinephrine is an integral component of adult out-of-hospital cardiac arrest resuscitation. Epinephrine improves rates of return of spontaneous circulation and might provide benefit at different doses or in select resuscitation scenarios, such asystole as an initial rhythm at onset of resuscitation efforts. However, evidence indicates potential harms with routine use of standard dose epinephrine (1 mg/10 mL), with no improvement in neurologic or long-term outcomes. CONCLUSIONS: Despite years of use and inclusion in resuscitation guidelines, epinephrine is not associated with improved neurologic outcomes. The AHA Emergency Cardiovascular Care committee should revise ACLS guidelines reflecting evidence that standard-dose epinephrine offers little benefit to successful patient recovery including neurologic outcomes. Future resuscitation guidelines should reflect this important consideration.

2020 EACTS/ELSO/STS/AATS Expert Consensus on Post-Cardiotomy Extracorporeal Life Support in Adult Patients.

Post-cardiotomy extracorporeal life support (PC-ECLS) in adult patients has been used only rarely but recent data have shown a remarkable increase in its use, almost certainly due to improved technology, ease of management, growing familiarity with its capability and decreased costs. Trends in worldwide in-hospital survival, however, rather than improving, have shown a decline in some experiences, likely due to increased use in more complex, critically ill patients rather than to suboptimal management. Nevertheless, PC-ECLS is proving to be a valuable resource for temporary cardiocirculatory and respiratory support in patients who would otherwise most likely die. Because a comprehensive review of PC-ECLS might be of use for the practitioner, and possibly improve patient management in this setting, the authors have attempted to create a concise, comprehensive and relevant analysis of all aspects related to PC-ECLS, with a particular emphasis on indications, technique, management and avoidance of complications, appraisal of new approaches and ethics, education and training.

Advanced reperfusion strategies for patients with out-of-hospital cardiac arrest and refractory ventricular fibrillation (ARREST): a phase 2, single centre, open-label, randomised controlled trial.

BACKGROUND: Among patients with out-of-hospital cardiac arrest (OHCA) and ventricular fibrillation, more than half present with refractory ventricular fibrillation unresponsive to initial standard advanced cardiac life support (ACLS) treatment. We did the first randomised clinical trial in the USA of extracorporeal membrane oxygenation (ECMO)-facilitated resuscitation versus standard ACLS treatment in patients with OHCA and refractory ventricular fibrillation. METHODS: For this phase 2, single centre, open-label, adaptive, safety and efficacy randomised clinical trial, we included adults aged 18-75 years presenting to the University of Minnesota Medical Center (MN, USA) with OHCA and refractory ventricular fibrillation, no return of spontaneous circulation after three shocks, automated cardiopulmonary resuscitation with a Lund University Cardiac Arrest System, and estimated transfer time shorter than 30 min. Patients were randomly assigned to early ECMO-facilitated resuscitation or standard ACLS treatment on hospital arrival by use of a secure schedule generated with permuted blocks of randomly varying block sizes. Allocation concealment was achieved by use of a randomisation schedule that required scratching off an opaque layer to reveal assignment. The primary outcome was survival to hospital discharge. Secondary outcomes were safety, survival, and functional assessment at hospital discharge and at 3 months and 6 months after discharge. All analyses were done on an intention-to-treat basis. The study qualified for exception from informed consent (21 Code of Federal Regulations 50.24). The ARREST trial is registered with ClinicalTrials.gov, NCT03880565. FINDINGS: Between Aug 8, 2019, and June 14, 2020, 36 patients were assessed for inclusion. After exclusion of six patients, 30 were randomly assigned to standard ACLS treatment (n=15) or to early ECMO-facilitated resuscitation (n=15). One patient in the ECMO-facilitated resuscitation group withdrew from the study before discharge. The mean age was 59 years (range 36-73), and 25 (83%) of 30 patients were men. Survival to hospital discharge was observed in one (7%) of 15 patients (95% credible interval 1·6-30·2) in the standard ACLS treatment group versus six (43%) of 14 patients (21·3-67·7) in the early ECMO-facilitated resuscitation group (risk difference 36·2%, 3·7-59·2; posterior probability of ECMO superiority 0·9861). The study was terminated at the first preplanned interim analysis by the National Heart, Lung, and Blood Institute after unanimous recommendation from the Data Safety Monitoring Board after enrolling 30 patients because the posterior probability of ECMO superiority exceeded the prespecified monitoring boundary. Cumulative 6-month survival was significantly better in the early ECMO group than in the standard ACLS group. No unanticipated serious adverse events were observed. INTERPRETATION: Early ECMO-facilitated resuscitation for patients with OHCA and refractory ventricular fibrillation significantly improved survival to hospital discharge compared with standard ACLS treatment. FUNDING: National Heart, Lung, and Blood Institute.

Part 7: Systems of Care: 2020 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care.

Survival after cardiac arrest requires an integrated system of people, training, equipment, and organizations working together to achieve a common goal. Part 7 of the 2020 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care focuses on systems of care, with an emphasis on elements that are relevant to a broad range of resuscitation situations. Previous systems of care guidelines have identified a Chain of Survival, beginning with prevention and early identification of cardiac arrest and proceeding through resuscitation to post-cardiac arrest care. This concept is reinforced by the addition of recovery as an important stage in cardiac arrest survival. Debriefing and other quality improvement strategies were previously mentioned and are now emphasized. Specific to out-of-hospital cardiac arrest, this Part contains recommendations about community initiatives to promote cardiac arrest recognition, cardiopulmonary resuscitation, public access defibrillation, mobile phone technologies to summon first responders, and an enhanced role for emergency telecommunicators. Germane to in-hospital cardiac arrest are recommendations about the recognition and stabilization of hospital patients at risk for developing cardiac arrest. This Part also includes recommendations about clinical debriefing, transport to specialized cardiac arrest centers, organ donation, and performance measurement across the continuum of resuscitation situations.

Part 2: Evidence Evaluation and Guidelines Development: 2020 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care.

The 2020 American Heart Association (AHA) Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care is based on the extensive evidence evaluation performed in conjunction with the International Liaison Committee on Resuscitation. The Adult Basic and Advanced Life Support, Pediatric Basic and Advanced Life Support, Neonatal Life Support, Resuscitation Education Science, and Systems of Care Writing Groups drafted, reviewed, and approved recommendations, assigning to each recommendation a Class of Recommendation (ie, strength) and Level of Evidence (ie, quality). The 2020 Guidelines are organized in knowledge chunks that are grouped into discrete modules of information on specific topics or management issues. The 2020 Guidelines underwent blinded peer review by subject matter experts and were also reviewed and approved for publication by the AHA Science Advisory and Coordinating Committee and the AHA Executive Committee. The AHA has rigorous conflict-of-interest policies and procedures to minimize the risk of bias or improper influence during development of the guidelines. Anyone involved in any part of the guideline development process disclosed all commercial relationships and other potential conflicts of interest.

P-COSCA (Pediatric Core Outcome Set for Cardiac Arrest) in Children: An Advisory Statement From the International Liaison Committee on Resuscitation.

Studies of pediatric cardiac arrest use inconsistent outcomes, including return of spontaneous circulation and short-term survival, and basic assessments of functional and neurological status. In 2018, the International Liaison Committee on Resuscitation sponsored the COSCA initiative (Core Outcome Set After Cardiac Arrest) to improve consistency in reported outcomes of clinical trials of adult cardiac arrest survivors and supported this P-COSCA initiative (Pediatric COSCA). The P-COSCA Steering Committee generated a list of potential survival, life impact, and economic impact outcomes and assessment time points that were prioritized by a multidisciplinary group of healthcare providers, researchers, and parents/caregivers of children who survived cardiac arrest. Then expert panel discussions achieved consensus on the core outcomes, the methods to measure those core outcomes, and the timing of the measurements. The P-COSCA includes assessment of survival, brain function, cognitive function, physical function, and basic daily life skills. Survival and brain function are assessed at discharge or 30 days (or both if possible) and between 6 and 12 months after arrest. Cognitive function, physical function, and basic daily life skills are assessed between 6 and 12 months after cardiac arrest. Because many children have prearrest comorbidities, the P-COSCA also includes documentation of baseline (ie, prearrest) brain function and calculation of changes after cardiac arrest. Supplementary outcomes of survival, brain function, cognitive function, physical function, and basic daily life skills are assessed at 3 months and beyond 1 year after cardiac arrest if resources are available.

Criterios de triaje para reanimación cardiopulmonar y soporte vital avanzado durante la epidemia COVID-19 / Triage criterio for cardiopulmonary resuscitation and advanced life support during the COVID-19 epidemic

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Evaluation of manual chest compressions according to the updated cardiopulmonary resuscitation guidelines and the impact of feedback devices in an educational resuscitation course.

BACKGROUND: The cardiopulmonary resuscitation guidelines revised in 2015 recommend target chest compression rate (CCR) and chest compression depth (CCD) of 100-120 compressions per minute (cpm) and 5-6 cm, respectively. We hypothesized that the new guidelines are harder to comply with, even with proper feedback. METHODS: This prospective observational study using data collected from the participants of an Immediate Cardiac Life Support course included the evaluation of chest compressions using performance data from a feedback device after the completion of the course. Participants completed chest compressions for 1 min and were provided with feedback, after which they performed another cycle of CC. Primary outcome measures were CCR and CCD as well as the correct CCR percentage and CCD percentage for pre and post feedback. RESULTS: The study included a total of 88 participants. The median pre-CCR was 112.5 cpm (interquartile range [IQR] 108-116 cpm), and the median correct pre-CCR percentage was 96% (IQR 82.5-99.5%). After the feedback, there was a slight increase in the correct CCR percentage (99% [IQR 92.5-100%]). Conversely, the median pre-CCD was 5.4 cm (IQR 4.9-5.8 cm), and the median pre-correct CCD percentage was 66% (IQR 18.5-90%). The increase in the median post-correct CCD percentage to 72% (IQR 27-94%) observed after the feedback was not statistically significant (P = 0.361). CONCLUSIONS: Compliance with the new guidelines for chest compressions, especially those regarding the CCD, might be difficult. However, whether the changes in guidelines affect outcomes in actual clinical settings is uncertain and requires further investigation.