Experiences from a cluster-randomized trial (ParaNASPP) exploring triage and diagnostic accuracy in paramedic-suspected stroke: a qualitative interview study.

BACKGROUND AND PURPOSE: Timely prehospital stroke recognition was explored in the Paramedic Norwegian Acute Stroke Prehospital Project (ParaNASPP) by implementation of stroke education for paramedics and use of the National Institutes of Health Stroke Scale (NIHSS) through a mobile application. The study tested triage and facilitated communication between paramedics and stroke physicians. To complement the quantitative results of the clinical trial, a qualitative approach was used to identify factors that influence triage decisions and diagnostic accuracy in prehospital stroke recognition experienced by paramedics and stroke physicians. METHOD: Semi-structured qualitative individual interviews were performed following an interview guide. Informants were recruited from the enrolled paramedics and stroke physicians who participated in the ParaNASPP trial from Oslo University Hospital. Interviews were audio recorded, transcribed verbatim and approached inductively using the principles of thematic analysis. RESULTS: Fourteen interviews were conducted, with seven paramedics and seven stroke physicians. Across both groups two overarching themes were identified related to triage decisions and diagnostic accuracy in prehospital stroke recognition: prehospital NIHSS reliably improves clinical assessment and communication quality; overtriage is widely accepted whilst undertriage is not. CONCLUSION: Paramedics and stroke physicians described how prehospital NIHSS improved communication quality and reliably improved prehospital clinical assessment. The qualitative results support a rationale of an application algorithm to decide which NIHSS items should prompt immediate prenotification rather than a complete NIHSS as default.

Telephone triage and dispatch of ambulances to patients with suspected and verified acute stroke - a descriptive study.

OBJECTIVES: In this study we aimed to explore EMCC triage of suspected and confirmed stroke patients to gain more knowledge about the initial phase of the acute stroke response chain. Accurate dispatch at the Emergency Medical Communication Center (EMCC) is crucial for optimal resource utilization in the prehospital service, and early identification of acute stroke is known to improve patient outcome. MATERIALS AND METHODS: We conducted a descriptive retrospective study based on data from the Emergency Department and EMCC records at a comprehensive stroke center in Oslo, Norway, during a six-month period (2019-2020). Patients dispatched with EMCC stroke criteria and/or discharged with a stroke diagnosis were included. We identified EMCC true positive, false positive and false negative stroke patients and estimated EMCC stroke sensitivity and positive predictive value (PPV). Furthermore, we analyzed prehospital time intervals and identified patient destinations to gain knowledge on ambulance services assessments. RESULTS: We included 1298 patients. EMCC stroke sensitivity was 77% (95% CI: 72 - 82%), and PPV was 16% (95% CI: 14 - 18%). EMCC false negative stroke patients experienced an increased median prehospital delay of 11 min (p < 0.001). Upon arrival at the scene, 68% of the EMCC false negative patients were identified as suspected stroke cases by the ambulance services. Similarly, 68% of the false positive stroke patients were either referred to a GP, out-of-hours GP acute clinic, local hospitals or left at the scene by the ambulance services, indicating that no obvious stroke symptoms were identified by ambulance personnel upon arrival at the scene. CONCLUSIONS: This study reveals a high EMCC stroke sensitivity and an extensive number of false positive stroke dispatches. By comparing the assessments made by both the EMCC and the ambulance service, we have identified specific patient groups that should be the focus for future research efforts aimed at improving the sensitivity and specificity of stroke recognition in the EMCC.

Nursing students' attitudes towards the use of digital technology in the healthcare of older adults- a cross-sectional study in Norway and Sweden.

BACKGROUND: Implementation of digital technology has been suggested as a potential solution to future healthcare challenges. Healthcare personnel's attitudes are important in the acceptance and implementation of digital technologies. AIM: The aims of this study were to (1) translate and validate two different questionnaires to Norwegian and Swedish respectively, and then (2) use these to examine nursing students' attitudes towards digital technology in healthcare, as well as their attitudes towards older adults' abilities to use digital technology. DESIGN: Cross-sectional. METHODS: A web-based questionnaire was distributed in first year nursing students in a Norwegian and a Swedish university college, respectively. The questionnaire consisted of the short form of the 'Information Technology Attitude Scales for Health (ITASH)' and the 'Attitudes Towards Older Adults Using Digital technology (ATOAUT-11)' questionnaire. The questionnaires were translated and validated in both countries. Frequencies, Student's t-test, and one-way ANOVA were used to analyze the data. RESULTS: In total 236 students responded to the questionnaire in the period September 2022 to April 2023. Students mainly reported positive attitudes towards digital technology use in general. They most agreed with the items 'Using digital technology devices makes my communication with other health professionals faster', 'The sort of information I can get from the digital technology devices helps me give better care to patient', and 'Digital technology skills are becoming more and more necessary for healthcare professionals'. However, they reported more negative attitudes towards older adults using digital technology. They most agreed with the items 'One needs a lot of patience to explain to an older adult how to use digital technologies', 'It's hard to explain to older adults how to use digital technology', 'Using digital technology is harder for most older adults', and 'Most older adults fear using digital technology because they fear of being scammed or cheated'. CONCLUSION: The ITASH and the ATOAUT-11 is appropriate for use in a Norwegian and Swedish setting. Even if nursing students are positive to digital technology in healthcare in general, they are sceptical to older adults using digital technology. This may impact on their attitudes to using digital technology in the healthcare of older adults. These aspects need emphasis when revising nursing education curricula focusing on developing technological competencies in nursing, and gaining knowledge regarding older adults' use of digital technology.

The aftermath of surviving a sudden cardiac arrest for young exercisers - a qualitative study in Norway.

BACKGROUND: When surviving a sudden cardiac arrest (SCA), physical, cognitive, and emotional effects of surviving may be present for months or years. The survivors' family and colleagues are also highly affected by the incident. There is little knowledge about experiences of surviving SCA in individuals who prior to the incident were young and reported to exercise regularly. Consequently, the aim of this study was to explore the aftermath of surviving a SCA in young, regular exercisers. METHODS: The study had a qualitative design, conducting in-depth individual interviews with SCA survivors < 50 years of age reporting to exercise ≥ 5 h/week and/or who suffered SCA during or less than 60 min after exercise. The data were analysed using systematic text condensation in-line with recommendations from Malterud. RESULTS: 18 of 31 eligible participants were included in the study. Through analysis we identified 'Establishing a new everyday life' as superordinate category, with subordinate categories a) being part of my surroundings, b) expecting normality but facing a new reality and c) lucky to be alive! CONCLUSION: This study adds knowledge about young and regular exercisers' experiences after surviving a SCA. The obligations of everyday life in young survivors of SCA often imply a high work load and complex tasks, e.g. due to being in the beginning of their career or even still studying. Healthcare personnel, as well as the society, need to acknowledge that although lucky to be alive and apparently well-functioning, young survivors of SCA may have persistent challenges that cause frustration and reduced quality of life.

Patient experiences with technology enabled care across healthcare settings- a systematic review.

BACKGROUND: Healthcare services are facing extensive challenges due to the increased proportion of elderly persons and persons with chronic disease. Technology enabled care (TEC) is a collective term for telecare, telehealth, telemedicine, mobile (m)-, digital- and electronic (e) health services. TEC is increasingly seen as a solution to many of the challenges facing the health sector. Patient perspectives may provide a useful evaluation tool for new healthcare technologies that have limited clinical data to support their effectiveness. More studies need to be done to better understand the acceptance of technology in healthcare. This review aim to summarize empirical studies exploring patient experiences with TEC. Findings in this study can be used to better understand what is needed to develop, implement and improve such services. METHODS: Systematic searches were conducted in the Pubmed, Psycinfo, Cinahl, Embase, Cochrane systematic reviews and Cochrane clinical trials databases. These studies were systematically reviewed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, subjected to quality appraisals using the Critical Appraisal Skills Program (CASP), and synthesized via integrative analysis. RESULTS: After removal of duplicates, languages other than English, and non-scientific records, 4087 titles and abstracts were screened. After assessment against inclusion and exclusion criteria, 69 records were screened in full-text, and underwent quality appraisal. 21 records were included in the integrative analysis. Patients' experiences with TEC related to 1) technological features, namely functionality and appearance, and 2) evolving independence, namely empowerment, autonomy and security. Technological challenges lead to frustrations and negative experiences, while a stigmatizing appearance lead to patients not using the solution. Through the use of TECs, patients felt more empowered, learning about their condition, increasing awareness to their symptoms and treatment, and feeling more safe and self-efficient. Patient participation was seen as a central aspect of the development of the TECT, as well as when using it. CONCLUSION: This review deepens the understanding of patients' experiences with technology enabled care solutions. Patients' experiences not only relate to the practical/technical element of the device or solution, but to how this impact on their everyday life. Patient participation in development and planned use of such solutions should be considered an integral part in healthcare quality initiatives.

Exploring individual and work organizational peculiarities of working in emergency medical communication centers in Norway- a qualitative study.

BACKGROUND: Emergency Medical call-takers working in Emergency Medical Communication Centers (EMCCs) are addressing complex and potentially life threatening problems. The call-takers have to make fast decisions, responding to problems described in phone calls. Recent studies focus mainly on individual aspects of call-takers' work. The objectives of this study were to explore 1) What characterizes individual work performance of call takers in EMCCs? and 2) What characterizes work organizational factors call takers see as most relevant to the performance of their work? METHODS: The research is based upon in-depth interviews with call takers at three EMCCs in Norway (n = 19). Interviews were performed during the period May 2013 to September 2014. Data was analyzed using thematic analysis. RESULTS: Two main themes that related to individual work performance and to work organizational factors in EMCCs were identified, namely: 1) "Core technologies" and 2) "Environmental issues" . The theme "Core technologies" included the subthemes a) multiple tasks, b) critical incidents, and c) unpredictability. The theme "Environmental issues" included the subthemes a) lack of support, b) lack of resources, c) exposure to complaints, and d) an invisible service. CONCLUSION: At the individual level, multiple tasks, how to cope with critical incidents, and the unpredictability of daily work when calls are received, make the work of call takers both stressful and challenging. The individual call taker's ability to interprete the situation by intuition and experience when calls are received, is the main factor behind the peculiarities working in the centers at the individual level. At the organizational level, the lack of resources and managerial support seems to provoke concerns about the quality of services rendered by the centers. These aspects should be taken into account in the managing of these services, making them a more integrated part of the health service system.

Ad hoc digital communication and assessment during clinical placements in nursing education; a qualitative research study of students', clinical instructors', and teachers' experiences.

BACKGROUND: There was a concern about the shortage of nurses that resulted from the Covid-19 pandemic. Therefore, universities and university colleges were instructed to continue educating nursing professionals but were challenged by the social distancing and the limitations of clinical placements and clinical-field instructors. Clinical placement is essential in the students' development of practical skills and knowledge. Thus, transitioning to a digital follow-up platform of communication with the students between the universities/college and the clinical practice sites became necessary. PURPOSE: To obtain knowledge about the experiences from the university/college teachers, students, and clinical-field instructors regarding the transition to a digital learning environment that resulted from the COVID-19 pandemic. METHODS: Qualitative individual digital interviews were conducted for data collection at three different nursing education programs from three Norwegian university/university college sites. Five students, four clinical-field instructors, and nine university/college teachers participated (n = 18). RESULTS: The inductive analyses identified two main themes: (1) Efficiency compromising pedagogical quality, and (2) Digital alienation. CONCLUSIONS: Students and university/college teachers were worried about fluctuating quality with digital pedagogical. There were concerns that the students educated during this period will have reduced clinical competencies.

Healthcare personnel self-assessed competence and knowledge following implementation of a new guideline on maternal resuscitation in Norway. A repeated measure study.

Introduction: Cardiac arrest in pregnancy is a rare, yet extremely challenging condition to manage for all healthcare personnel involved. Knowledge deficits and poor resuscitation skills can affect outcomes in cardiac arrest in pregnancy, but research exploring healthcare personnel competence and knowledge about maternal resuscitation is limited. Aims: The aim of this study was to explore (1) healthcare personnel self-assessed competence and knowledge about cardiopulmonary resuscitation (CPR) in pregnancy as well as perimortem caesarean section, before and after implementation of a new guideline, (2) whether there were any interprofessional differences in knowledge about maternal resuscitation, and (3) potential differences between different implementation strategies. Research Methodology: The study had a prospective repeated measure implementation design, utilizing a questionnaire before and after implementation of a new guideline on maternal resuscitation after cardiac arrest. Setting: All healthcare personnel potentially involved in CPR in six hospital wards, were invited to participate (n = 527). The guideline was implemented through either simulation, table-top discussions and/or an electronical learning course. Results: In total, 251 (48%) participants responded to the pre-questionnaire, and 182 (35%) to the postquestionnaire. The need for education and training/simulation concerning maternal resuscitation were significantly lowered after implementation of the guideline, yet still the majority of respondents reported a high to medium need for education and training/simulation. Participants' self-assessed overall competence in maternal resuscitation increased significantly postimplementation. Regardless of professional background, knowledge about CPR and perimortem caesarean section increased significantly in most items in the questionnaire after implementation. Differences in level of knowledge based on implementation strategy was identified, but varied between items, and was therefore inconclusive. Conclusion: This study adds knowledge about healthcare personnel self-assessed competence and knowledge about maternal resuscitation and perimortem caesarean section in pregnancy. Our findings indicate that there is still a need for more education and training in this rare incident.

Person-Centeredness in Digital Primary Healthcare Services-A Scoping Review.

Background: Transformation toward digital services offers unique opportunities to meet the challenges of responding to changing public healthcare needs and health workforce shortages. There is a knowledge gap regarding digital health and person or patient-centered care. Aim: The aim of the current scoping review was to obtain an overview of existing research on person or patient centeredness in digital primary healthcare services. Design: A scoping review following the five stages by Arksey and O'Malley. Methods: Literature searches were conducted in the databases PubMed, Scopus (Elsevier), APA PsychInfo (Ovid), Embase (Ovid), Cinahl (Ovid) and Cochrane Library in June 2022. The Preferred Reporting Items for Systematic reviews and Meta-Analyzes extension for Scoping Reviews (PRISMA-ScR) Checklist was followed. Results: The electronic database searches identified 782 references. A total of 116 references were assessed in full text against the inclusion and exclusion criteria. Finally, a total of 12 references were included. The included papers represent research from 2015 to 2021 and were conducted in eight different countries, within a variety of populations, settings and digital solutions. Four themes providing knowledge about current research on patient or person centeredness and digital primary health care were identified: 'Accessibility', 'Self-management', 'Digitalization at odds with patient centeredness' and 'Situation awareness'. The review underlines the need for further research on these issues.

The Use of Robotic Technology in the Healthcare of People above the Age of 65-A Systematic Review.

AIM: The integration of robots can help provide solutions in regards to the need for an increase in resources in healthcare. The aim of this review was to identify how robots are utilized in the healthcare of people who are over the age of 65 and how this population experiences interacting with healthcare robots. DESIGN: A systematic literature review with an integrated design was conducted. METHODS: A literature search was performed in the electronic databases CINAHL via EBSCO, EMBASE, and Medline via Ovid. Content analysis was performed to assess the studies that were included in this review. RESULTS: A total of 14 articles were included. Participants in the studies included 453 older people ranging from 65 to 108 years of age. Nine of the studies focused on people with dementia or cognitive impairment. Seven studies included different types of socially assistive human-like robots, six of the studies included two different types of animal-like robots, and one study focused on a robotic rollator. The robots mainly served as social assistive- or engagement robots.

Experiences of cardiac arrest survivors among young exercisers in Norway: A qualitative study.

Aim: To explore how young exercisers experience surviving sudden cardiac arrest (SCA), focusing on interpretation of warning signs and experiences with the healthcare system. Methods: The study had a qualitative design, and data was collected using individual, semi-structured interviews. Inclusion criteria were SCA survivors aged 18-50 years old who reported at least five hours of exercise/week prior to SCA, or who suffered SCA during or ≤60 min after exercise. Results: 18 interviews were performed (4 females), age range 19-49 years old. Analysis identified the themes [1] neglected warning signs, [2] fluctuating between gratitude and criticism and [3] one size does not fit all. When young exercisers experienced symptoms such as fainting, chest pain, arrythmia, shortness of breath and fatigue, these were often ignored by either the participants, healthcare personnel or both. SCA survivors were grateful to the healthcare system and for the efforts made by healthcare personnel, but experienced a mismatch between what patients needed and could utilize, and what they actually received regarding both information and individualised services. Being young exercisers, the participants reported to have individual needs, but treatment and rehabilitation were not adapted and were mainly targeted to rehabilitation of older patients. Conclusion: Patients and healthcare personnel should be aware of cardiac related symptoms and warning signs for SCA, and these should be properly assessed in the population of young exercisers. SCA survivors need useful and repeated information. The needs of SCA survivors among young exercisers require individualisation of services.

Description of call handling in emergency medical dispatch centres in Scandinavia: recognition of out-of-hospital cardiac arrests and dispatcher-assisted CPR.

BACKGROUND: The European resuscitation council have highlighted emergency medical dispatch centres as an important key player for early recognition of Out-of-Hospital Cardiac Arrest (OHCA) and in providing dispatcher assisted cardiopulmonary resuscitation (CPR) before arrival of emergency medical services. Early recognition is associated with increased bystander CPR and improved survival rates. The aim of this study is to describe OHCA call handling in emergency medical dispatch centres in Copenhagen (Denmark), Stockholm (Sweden) and Oslo (Norway) with focus on sensitivity of recognition of OHCA, provision of dispatcher-assisted CPR and time intervals when CPR is initiated during the emergency call (NO-CPRprior), and to describe OHCA call handling when CPR is initiated prior to the emergency call (CPRprior). METHODS: Baseline data of consecutive OHCA eligible for inclusion starting January 1st 2016 were collected from respective cardiac arrest registries. A template based on the Cardiac Arrest Registry to Enhance Survival definition catalogue was used to extract data from respective cardiac arrest registries and from corresponding audio files from emergency medical dispatch centres. Cases were divided in two groups: NO-CPRprior and CPRprior and data collection continued until 200 cases were collected in the NO-CPRprior-group. RESULTS: NO-CPRprior OHCA was recognised in 71% of the calls in Copenhagen, 83% in Stockholm, and 96% in Oslo. Abnormal breathing was addressed in 34, 7 and 98% of cases and CPR instructions were started in 50, 60, and 80%, respectively. Median time (mm:ss) to first chest compression was 02:35 (Copenhagen), 03:50 (Stockholm) and 02:58 (Oslo). Assessment of CPR quality was performed in 80, 74, and 74% of the cases. CPRprior comprised 71 cases in Copenhagen, 9 in Stockholm, and 38 in Oslo. Dispatchers still started CPR instructions in 41, 22, and 40% of the calls, respectively and provided quality assessment in 71, 100, and 80% in these respective instances. CONCLUSIONS: We observed variations in OHCA recognition in 71-96% and dispatcher assisted-CPR were provided in 50-80% in NO-CPRprior calls. In cases where CPR was initiated prior to emergency calls, dispatchers were less likely to start CPR instructions but provided quality assessments during instructions.

Development and validation of a questionnaire to assess healthcare personnel competence in cardiac arrest and resuscitation in pregnancy.

BACKGROUND: Cardiac arrest is rare in pregnancy, and up-to date competence can be difficult to assess and maintain. The objective of this study was to develop and validate a questionnaire to assess healthcare personnel experiences, self-assessed competence and perception of role and resposibility related to cardiac arrest and cardio-pulmonary resuscitation (CPR) in pregnancy. METHODS: The study had a cross-sectional design, developing and validating a questionnaire: the Competence in cardiac arrest and CPR in pregnancy (ComCA-P). Development and validation of the ComCA-P was conducted in three stages: 1) Literature review and expert group panel inputs, 2) a pilot study and 3) a cross-sectional questionnaire study. In stage one, the ComCA-P was developed over several iterations between the researchers, including inputs from an expert group panel consisting of highly competent professionals (n = 11). In stage two, the questionnaire was piloted in a group of healthcare personnel with relevant competence (n = 16). The ComCA-P was then used in a baseline study including healthcare personnel potentially involved in CPR in pregnancy (n = 527) in six hospital wards. Based on these data, internal consistency, intra-class correlations, and confirmatory factor analysis were utilized to validate the questionnaire. RESULTS: The expert group and pilot study participants evaluated the appropriateness, relevance and accuracy to be high. Formulation of the items was considered appropriate, with no difficulties identified related to content- or face validity. Cronbach's alpha was 0.8 on the thematic area self-assessment, and 0.73 on the theoretical knowledge area of the ComCA-P. On both the self-assessed competence items and the teoretical knowledge items, Kaiser-Meyer-Olkin was 0.8. Moreover, the Bertletts' test of sphericity was greater than the critical value for chi-square, and significant (p < .0001). CONCLUSIONS: Findings indicate that the ComCA-P is a valid questionnaire that can be used to assess healthcare personnel competence in cardiac arrest and resuscitation in pregnancy.

Targeted simulation and education to improve cardiac arrest recognition and telephone assisted CPR in an emergency medical communication centre.

AIM: Recognition of cardiac arrest and prompt activation time by emergency medical dispatch are key process measures that have been associated with improved survival after out-of-hospital cardiac arrest (OHCA). The aim of this study is to improve recognition of OHCA and time to initiation of telephone assisted chest compressions in an emergency medical communication centre (EMCC). METHODS: A prospective, interventional study implementing targeted interventions in an EMCC. Interventions included: (1) lectures focusing on agonal breathing and interrogation strategy (2) simulation training (3) structured dispatcher feedback (4) web-based telephone assisted CPR training program. All ambulance-confirmed OHCA calls in the study period were assessed and relevant process and result measures were recorded pre- and post-intervention. Cardiac arrest was reported as (1) recognised, (2) not recognised or (3) delayed recognition. RESULTS: We included 331 and 230 calls pre- and post-intervention, respectively. Recognition of cardiac arrest improved significantly after intervention (89 vs. 95%, p=0.024). Delayed recognition was significantly reduced (21 vs. 6%, p>0.001), as was misinterpretation of agonal breathing (25 vs. 10%, p<0.001). Telephone assisted compressions increased (71% vs. 83%, p=0.002) whereas bystander performed ventilations decreased after intervention (23% vs. 15%, p=0.016). Time intervals for initiation of chest compression instructions (2.6 vs. 2.3min, p=0.042) and delivery of telephone assisted chest compressions (3.3 vs. 2.8min, p=0.015) were significantly shortened after intervention. CONCLUSION: Targeted simulation, education and feedback significantly improved recognition of OHCA and reduced time to first chest compression. Continuous measurement of key quality metrics can facilitate development of targeted education and training.

Factors impacting upon timely and adequate allocation of prehospital medical assistance and resources to cardiac arrest patients.

AIM: Explore, understand and address issues that impact upon timely and adequate allocation of prehospital medical assistance and resources to out-of-hospital cardiac arrest (OHCA) patients. METHODS: Mixed-methods design obtaining data for one year in three emergency medical communication centres (EMCC); Oslo-Akershus (OA), Vestfold-Telemark (VT) and Østfold (Ø). Data collection included quantitative data from analysis of dispatch logs, ambulance records and audio files. Qualitative data were collected through in-depth interviews and non-participant observations. RESULTS: OA-, VT- and Ø-EMCC responded to 1095 OHCAs and 579 of these calls were included for further analysis (333, 143 and 103, respectively). There were significant site differences in their recognition of OHCA (89, 94 and 78%, respectively, p<0.001), provision of CPR instructions (83, 83 and 61%, respectively, p<0.001), time from call answered to initial CPR instructions (1.4min (1.2, 1.6), 1.1min (0,9, 1.2) and 1.3 (1.2, 1.7) respectively, p=0.002). The most frequent reason for delayed or failed recognition of OHCA was misinterpretation of agonal breathing. Interviews and observations revealed individual differences in protocol use, interrogation strategy and assessment of breathing. Use of protocol was only part of decision making, dispatchers trusted their own clinical experience and intuition, and used assumptions about the patient and the situation as part of decision making. CONCLUSION: Agonal breathing continues to be the main barrier to recognition of cardiac arrest. Individual differences among dispatchers' strategies can directly impact on performance, mainly due to the wide definition of cardiac arrest and lack of uniform tools for assessment of breathing.

Comparison of Medical Priority Dispatch (MPD) and Criteria Based Dispatch (CBD) relating to cardiac arrest calls.

BACKGROUND: Prompt emergency medical service (EMS) system activation with rapid delivery of pre-hospital treatment is essential for patients suffering out-of-hospital cardiac arrest (OHCA). The two most commonly used dispatch tools are Medical Priority Dispatch (MPD) and Criteria Based Dispatch (CBD). We compared cardiac arrest call processing using these two dispatch tools in two different dispatch centres. METHODS: Observational study of adult EMS confirmed (non-EMS witnessed) OHCA calls during one year in Richmond, USA (MPD) and Oslo, Norway (CBD). Patients receiving CPR prior to call, interrupted calls or calls where the caller did not have access to the patients were excluded from analysis. Dispatch logs, ambulance records and digitalized dispatcher and caller voice recordings were compared. RESULTS: The MPDS-site processed 182 cardiac arrest calls and the CBD-site 232, of which 100 and 140 calls met the inclusion criteria, respectively. The recognition of cardiac arrest was not different in the MPD and CBD systems; 82% vs. 77% (p=0.42), and pre-EMS arrival CPR instructions were offered to 81% vs. 74% (p=0.22) of callers, respectively. Time to ambulance dispatch was median (95% confidence interval) 15 (13, 17) vs. 33 (29, 36) seconds (p<0.001) and time to chest compression delivery; 4.3 (3.7, 4.9) vs. 3.7 (3.0, 4.1)min for the MPD and CBD systems, respectively (p=0.05). CONCLUSION: Pre-arrival CPR instructions were offered faster and more frequently in the CBD system, but in both systems chest compressions were delayed 3-4min. Earlier recognition of cardiac arrest and improved CPR instructions may facilitate earlier lay rescuer CPR.