Publications by authors named "Olasveengen T"

Background: In some regions, females are less likely to receive public-initiated resuscitation, potentially due to the need to expose the chest and breasts for proper automated external defibrillator (AED) pad placement. We conducted a scoping review to investigate the breadth of the existing literature and knowledge gaps on bra (brassière) removal and AED pad application.

Methods: Studies that examined bra removal and outcomes associated with AED pad placement and defibrillation in cardiac arrest were eligible.

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Introduction: Cardiac arrest registries can benchmark, enhance quality of care and provide data for research. Key stakeholders from Emergency Medical Communication Centre (EMCC), Emergency Medical Services (EMS), In-Hospital Care Providers (IHCP) and Recovery and Rehabilitation Providers (RRP) have different perspectives, and registry results and patient cohorts should be tailored to facilitate benchmarking, quality improvement projects and research in all sections of the chain of survival. In this paper, we describe different cohorts of interest, exemplified by data from the Norwegian Cardiac Arrest Registry (NorCAR).

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Unlabelled: Out-of-hospital cardiac arrest (OHCA) remains a critical health concern, where prompt access to automated external defibrillators (AEDs) significantly improves survival. This scoping review broadly investigates the feasibility and impact of dronedelivered AEDs for OHCA response.

Methods: PubMed, Cochrane, and Web of Science were searched from inception to August 6, 2024, with eligibility broadly including empirical data.

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Article Synopsis
  • The eighth annual summary from the International Liaison Committee on Resuscitation (ILCOR) focuses on the latest findings in cardiopulmonary resuscitation (CPR) and emergency cardiovascular care, building on a comprehensive review from 2020.
  • This summary is based on the evaluation of recent resuscitation evidence by experts from six different ILCOR task forces, who utilized specific criteria to assess the quality of evidence and reached consensus treatment recommendations.
  • The document also identifies key areas where more research is needed, sharing insights into the task forces’ discussions through sections like Justification and Evidence-to-Decision Framework Highlights.
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This is the eighth annual summary of the International Liaison Committee on Resuscitation International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations; a more comprehensive review was done in 2020. This latest summary addresses the most recent published resuscitation evidence reviewed by the International Liaison Committee on Resuscitation task force science experts. Members from 6 International Liaison Committee on Resuscitation task forces have assessed, discussed, and debated the quality of the evidence, using Grading of Recommendations Assessment, Development, and Evaluation criteria, and their statements include consensus treatment recommendations.

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Article Synopsis
  • Neuroimaging using MRI can help assess brain injuries in comatose adults after cardiac arrest, but data on its use is limited.
  • In a study involving 1,639 patients from the TAME trial, only 9% underwent MRI, showing key differences in age, time to resuscitation, and lactate levels compared to those who did not.
  • Six months later, only 16% of MRI patients had a favorable neurological outcome, highlighting concerns about the effectiveness of MRI in this context.
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Background: Rapid public defibrillation with automated external defibrillators (AEDs) is critical to improving out-of-hospital cardiac arrest survival. Concerns about AED theft and vandalism have led to implementing security measures, including locked cabinets. This scoping review, conducted as part of the evidence review for the International Liaison Committee on Resuscitation, explores the impact of securing AEDs in locked cabinets.

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Aim: To summarize existing literature and identify knowledge gaps regarding barriers and enablers of telecommunicators' recognition of out-of-hospital cardiac arrest (OHCA).

Methods: This scoping review was undertaken by an International Liaison Committee on Resuscitation (ILCOR) Basic Life Support scoping review team and guided by the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for scoping reviews (PRISMA-ScR). Studies were eligible for inclusion if they were peer-reviewed and explored barriers and enablers of telecommunicator recognition of OHCA.

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Background: There is an increasing prevalence of durable mechanical circulatory supported patients in both the in-and-out of hospital communities. The scientific literature regarding the approach to patients supported by durable mechanical circulatory devices who suffer acutely impaired perfusion has not been well explored.

Methods: The International Liaison Committee on Resuscitation Advanced, Basic, and Pediatric Life Support Task Forces conducted a scoping review of the literature using a population, context, and concept framework.

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Background: Ultraportable automated external defibrillators (AEDs) are a new generation of defibrillators that are small, lightweight, easy to carry on one's person, and affordable for personal and home use. They offer the opportunity to increase AED availability in case of out-of-hospital cardiac arrest (OHCA) and therefore improve outcomes.We aimed to review evidence supporting the potential effect on outcomes and the performance of these ultraportable AEDs.

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Aim: To review and summarize existing literature and knowledge gaps regarding interventions that have been tested to optimize dispatcher-assisted CPR (DA-CPR) instruction protocols for out-of-hospital cardiac arrest (OHCA).

Methods: This scoping review was undertaken by an International Liaison Committee on Resuscitation (ILCOR) Basic Life Support scoping review team and guided by the ILCOR methodological framework and the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for scoping reviews (PRISMA-ScR). Studies were eligible for inclusion if they were published in peer-reviewed journals and evaluated interventions used to improve DA-CPR.

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Article Synopsis
  • Mild hypercapnia, compared to normocapnia, was studied to see if it affects myocardial injury in comatose patients who had a cardiac arrest and underwent emergency intervention.
  • The study found that mild hypercapnia led to significantly lower levels of high-sensitive cardiac troponin T (hs-cTnT), indicating less myocardial injury, particularly in patients with acute myocardial infarction (AMI).
  • Overall, mild hypercapnia did not worsen injury in resuscitated cardiac arrest patients and even showed benefits in cardiac performance and lactate levels in those with AMI.
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This scientific statement presents a conceptual framework for the pathophysiology of post-cardiac arrest brain injury, explores reasons for previous failure to translate preclinical data to clinical practice, and outlines potential paths forward. Post-cardiac arrest brain injury is characterized by 4 distinct but overlapping phases: ischemic depolarization, reperfusion repolarization, dysregulation, and recovery and repair. Previous research has been challenging because of the limitations of laboratory models; heterogeneity in the patient populations enrolled; overoptimistic estimation of treatment effects leading to suboptimal sample sizes; timing and route of intervention delivery; limited or absent evidence that the intervention has engaged the mechanistic target; and heterogeneity in postresuscitation care, prognostication, and withdrawal of life-sustaining treatments.

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This scientific statement presents a conceptual framework for the pathophysiology of post-cardiac arrest brain injury, explores reasons for previous failure to translate preclinical data to clinical practice, and outlines potential paths forward. Post-cardiac arrest brain injury is characterized by 4 distinct but overlapping phases: ischemic depolarization, reperfusion repolarization, dysregulation, and recovery and repair. Previous research has been challenging because of the limitations of laboratory models; heterogeneity in the patient populations enrolled; overoptimistic estimation of treatment effects leading to suboptimal sample sizes; timing and route of intervention delivery; limited or absent evidence that the intervention has engaged the mechanistic target; and heterogeneity in postresuscitation care, prognostication, and withdrawal of life-sustaining treatments.

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Introduction: The Utstein reporting template classifies the etiology of OHCA into "presumed cardiac" and "obvious non-cardiac" or "medical" and "non-medical" categories; however, the accuracy of these classifications is unclear. Ascertaining more accurately the etiology of OHCA is important to tailor advanced life support and identify etiologically consistent patient cohorts for reporting incidence and outcome and enrollment in clinical trials. This scoping review was proposed to identify the state of agreement on etiological classification based on emergency medical service (EMS) data using the Utstein format against other sources.

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Aim: To determine whether targeting mild hypercapnia (PaCO 7 kPa) would yield improved cerebral blood flow and metabolism compared to normocapnia (PaCO 5 kPa) with and without targeted temperature management to 33 °C (TTM33) in a porcine post-cardiac arrest model.

Methods: 39 pigs were resuscitated after 10 minutes of cardiac arrest using cardiopulmonary bypass and randomised to TTM33 or no-TTM, and hypercapnia or normocapnia. TTM33 was managed with intravasal cooling.

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Aim: Compare lung injury and hemodynamic effects in synchronized ventilations (between two chest compressions) vs. unsynchronized ventilations during cardiopulmonary resuscitation (CPR) in a porcine model of cardiac arrest.

Methods: Twenty pigs were randomized to either synchronized or unsynchronized group.

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Introduction: Automated cardiac arrest diagnosis offers the possibility to significantly shorten the interval between onset of out-of-hospital cardiac arrest (OHCA) and notification of EMS, providing the opportunity for earlier resuscitation and possibly increased survival.

Methods: Automated cardiac arrest diagnosis was one of six focus topics for the Wolf Creek XVII Conference held on June 14-17 2023 in Ann Arbor, Michigan, USA. Conference invitees included international thought leaders and scientists in the field of cardiac arrest resuscitation from academia and industry.

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The International Liaison Committee on Resuscitation engages in a continuous review of new, peer-reviewed, published cardiopulmonary resuscitation and first aid science. Draft Consensus on Science With Treatment Recommendations are posted online throughout the year, and this annual summary provides more concise versions of the final Consensus on Science With Treatment Recommendations from all task forces for the year. Topics addressed by systematic reviews this year include resuscitation of cardiac arrest from drowning, extracorporeal cardiopulmonary resuscitation for adults and children, calcium during cardiac arrest, double sequential defibrillation, neuroprognostication after cardiac arrest for adults and children, maintaining normal temperature after preterm birth, heart rate monitoring methods for diagnostics in neonates, detection of exhaled carbon dioxide in neonates, family presence during resuscitation of adults, and a stepwise approach to resuscitation skills training.

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The International Liaison Committee on Resuscitation engages in a continuous review of new, peer-reviewed, published cardiopulmonary resuscitation and first aid science. Draft Consensus on Science With Treatment Recommendations are posted online throughout the year, and this annual summary provides more concise versions of the final Consensus on Science With Treatment Recommendations from all task forces for the year. Topics addressed by systematic reviews this year include resuscitation of cardiac arrest from drowning, extracorporeal cardiopulmonary resuscitation for adults and children, calcium during cardiac arrest, double sequential defibrillation, neuroprognostication after cardiac arrest for adults and children, maintaining normal temperature after preterm birth, heart rate monitoring methods for diagnostics in neonates, detection of exhaled carbon dioxide in neonates, family presence during resuscitation of adults, and a stepwise approach to resuscitation skills training.

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Article Synopsis
  • The study investigated the effects of mild hypercapnia versus normocapnia on heart performance in patients who survived out-of-hospital cardiac arrest (OHCA).
  • Patients were randomly assigned to experience either mild hypercapnia or normocapnia for 24 hours, with comprehensive monitoring of heart function and blood gases.
  • The findings indicated that while mild hypercapnia did not lead to increased pulmonary vascular resistance or deteriorate right ventricular function, it enhanced cardiac output and overall oxygen levels in the blood.
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Article Synopsis
  • - Despite advancements in cardiovascular medicine, sudden cardiac death (SCD) remains a major global issue, with millions of deaths annually and low survival rates from sudden cardiac arrest.
  • - Efforts to combat SCD are hindered by poor risk assessment and a lack of effective arrhythmia treatments, highlighting the need for improved community intervention and emergency response systems.
  • - The Lancet Commission on SCD has formed a group of experts to propose a comprehensive strategy for prevention, emphasizing the need for policy changes, community-based programs, and international collaboration to enhance survival rates and support families affected by SCD.
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