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Aldridge ES, Ball S, Birnie T, Perera N, Whiteside A, Bray J, Finn J. The association of out-of-hospital cardiac arrest barriers to cardiopulmonary resuscitation initiation and continuation during the emergency call: A retrospective cohort study. Resusc Plus 2024; 19:100702. [PMID: 39035412 PMCID: PMC11260372 DOI: 10.1016/j.resplu.2024.100702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Accepted: 06/16/2024] [Indexed: 07/23/2024] Open
Abstract
Background In a previous study, we identified eight types of potential barriers to bystander cardiopulmonary resuscitation (CPR) initiation and continuation until the arrival of emergency medical services (EMS) on scene, in the context of emergency calls for out-of-hospital cardiac arrest (OHCA). Many cases had multiple barriers. In this study, we aimed to estimate the independent effects of these barriers after adjusting for case characteristics. Methods We used data for the 295 non-trauma OHCAs from the St John Western Australian (SJ-WA) OHCA Database. Excluded cases were: EMS-witnessed OHCA, callers not with/close to the patient, OHCA not recognised during the emergency call, bystander CPR in progress prior to the call and calls coded as obvious death by SJ-WA. We conducted two multivariable logistic regression models including the eight barriers (callers: 1) perceived inappropriateness of CPR, 2) emotional distress, 3) reluctance to perform CPR, 4) physical limitations, 5) access to the patient, 6) leaving the scene, 7) communication failure, and 8) on-scene distractions) and case characteristics. Results The callers perceiving CPR as inappropriate (adjusted odds ratio [AOR] = 0.20, 0.11-0.37) and witnessed arrest (AOR = 2.88, 95% CI 1.48-5.60) were independently associated with CPR initiation. Caller distractions such as performing other tasks or relaying information to other bystanders were negatively significantly associated with callers continuing CPR to EMS arrival (AOR = 0.27, 0.10-0.73). Conclusions Perceptions of inappropriateness and caller distractions were independent risk factors for the delivery of bystander CPR. Further research around how call-takers navigate these barriers and encourage callers should be performed.
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Affiliation(s)
- Emogene S Aldridge
- Prehospital, Resuscitation and Emergency Care Research Unit, School of Nursing, Curtin University, Western Australia, Australia
| | - Stephen Ball
- Prehospital, Resuscitation and Emergency Care Research Unit, School of Nursing, Curtin University, Western Australia, Australia
- St John Western Australia, Western Australia, Australia
| | - Tanya Birnie
- Prehospital, Resuscitation and Emergency Care Research Unit, School of Nursing, Curtin University, Western Australia, Australia
| | - Nirukshi Perera
- Prehospital, Resuscitation and Emergency Care Research Unit, School of Nursing, Curtin University, Western Australia, Australia
| | - Austin Whiteside
- Prehospital, Resuscitation and Emergency Care Research Unit, School of Nursing, Curtin University, Western Australia, Australia
- St John Western Australia, Western Australia, Australia
| | - Janet Bray
- Prehospital, Resuscitation and Emergency Care Research Unit, School of Nursing, Curtin University, Western Australia, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Victoria, Australia
| | - Judith Finn
- Prehospital, Resuscitation and Emergency Care Research Unit, School of Nursing, Curtin University, Western Australia, Australia
- St John Western Australia, Western Australia, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Victoria, Australia
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Park DH, Park GJ, Kim YM, Chai HS, Kim SC, Kim H, Lee SW. Barriers to successful dispatcher-assisted cardiopulmonary resuscitation in out-of-hospital cardiac arrest in Korea. Resusc Plus 2024; 19:100725. [PMID: 39091585 PMCID: PMC11293587 DOI: 10.1016/j.resplu.2024.100725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 07/04/2024] [Accepted: 07/08/2024] [Indexed: 08/04/2024] Open
Abstract
Introduction Dispatcher-assisted cardiopulmonary resuscitation (DA-CPR) improves bystander CPR rates and survival outcomes. This study aimed to identify barriers to successful DA-CPR in patients with out-of-hospital cardiac arrest (OHCA). Methods This retrospective observational study used data from a nationwide OHCA database from 2017 to 2021. Adult emergency medical services (EMS)-treated patients with OHCA with a presumed cardiac etiology were enrolled. The main exposure variable was compliance with DA-CPR. The primary outcome was good neurological recovery at hospital discharge. Multivariable logistic regression analysis was conducted to identify the major factors associated with unsuccessful DA-CPR with and without multiple imputations. Causal mediation analysis was conducted using witnessed status as a mediator. Results In the final analysis, 49,165 patients with OHCA were included. A total of 36,865 (75.0%) patients successfully underwent DA-CPR. A higher proportion of good neurological recovery was observed in the successful DA-CPR group than in the non-successful DA-CPR group (P < 0.001). The following factors were identified as risk factors for unsuccessful DA-CPR: age > 65 years, male sex, OHCA occurring in a non-metropolitan area or private place, unwitnessed status, whether the bystander was a non-family member or non-cohabitant, female sex or had not received CPR training, and primary call dispatchers not receiving any first-aid training. Additional analyses after multiple imputations showed similar results. Mediation effect was significant for most risk factors for unsuccessful DA-CPR. Conclusions Bystander characteristics (non-family member or non-cohabitant, female, and uneducated status for CPR) and primary call dispatchers not receiving first-aid training were identified as risk factors for unsuccessful DA-CPR.
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Affiliation(s)
- Dong Hyun Park
- Department of Emergency Medicine, Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - Gwan Jin Park
- Department of Emergency Medicine, Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - Young Min Kim
- Department of Emergency Medicine, Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - Hyun Seok Chai
- Department of Emergency Medicine, Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - Sang Chul Kim
- Department of Emergency Medicine, Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - Hoon Kim
- Department of Emergency Medicine, Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - Suk Woo Lee
- Department of Emergency Medicine, Chungbuk National University Hospital, Cheongju, Republic of Korea
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Chen YJ, Chen CY, Kang CW, Tzeng DW, Wang CC, Hsu CF, Huang TL, Liu CY, Tsai YT, Weng SJ. Dispatchers trained in persuasive communication techniques improved the effectiveness of dispatcher-assisted cardiopulmonary resuscitation. Resuscitation 2024; 196:110120. [PMID: 38266768 DOI: 10.1016/j.resuscitation.2024.110120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 01/26/2024]
Abstract
BACKGROUND Early recognition of cardiac arrest and early initiation of bystander cardiopulmonary resuscitation can increase the survival of patients with out-of-hospital cardiac arrest (OHCA). We compared dispatcher-assisted cardiopulmonary resuscitation (DACPR) effectiveness before and after using different communication models in the dispatching center. METHOD We analyzed dispatch recordings of non-trauma origin OHCA cases received by the Taichung dispatch center between May 1 to September 30, 2021, and November 1, 2021, to March 31, 2022. The dispatchers underwent an 8-hour training intervention consisting of targeted education using a new communication model for DACPR. Several outcome measures were evaluated, including the sustained return of spontaneous circulation and the time to first chest compression. RESULTS We included 640 cases in the preintervention group and 580 cases in the postintervention group. The return of spontaneous circulation (ROSC) rate, the time to first chest compression, and good neurological outcome were significantly improved in the postintervention group (20.9% vs. 31.0%, p < 0.001;168 seconds vs. 151 seconds, p = 0.004; 2.8% vs. 5.3%, p = 0.024, respectively). In subgroup analyses, the intervention was related to a statistical improvement in ROSC rate among patients whose caller was a family member (18.7% vs. 31.4%, p < 0.001). Among patients whose caller was female, both ROSC and good neurological outcome significantly improved after the intervention (19.8% vs. 36.6%, p < 0.001; 2.7% vs. 7.5%, p = 0.006, respectively). There was a statistical difference between the pre-intervention and post-intervention group with respect to ROSC rate among patients whose caller was family (the adjusted odds ratio:1.78, 95% CI: 0.59-1.25], p < 0.001.) or female (the adjusted odds ratio:3.18,95% CI: 1.77-5.70], p = 0.008.) in the multivariable regression model. CONCLUSION The new communication model has enhanced the effectiveness of DACPR in terms of the ROSC rate, particularly when the caller was a family member or female, leading to improved rates of ROSC and favorable neurological outcomes.
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Affiliation(s)
- Yen-Ju Chen
- Department of Emergency Medicine, Asia University Hospital, Taichung 413, Taiwan.
| | - Chih-Yu Chen
- Department of Emergency Medicine, Everan Hospital, Taichung 411, Taiwan; Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung 407, Taiwan.
| | - Chao-Wei Kang
- Department of Information Management, Chung Chou University of Science and Technology, Changhua 510, Taiwan; Fire Bureau of Taichung City Government, Taichung 408, Taiwan.
| | - Da-Wei Tzeng
- Fire Bureau of Taichung City Government, Taichung 408, Taiwan.
| | - Chia-Chin Wang
- Department of Leisure and Recreation Management, Asia University, Taichung 413, Taiwan; Fire Bureau of Taichung City Government, Taichung 408, Taiwan
| | - Chien-Feng Hsu
- Department of Business Administration, Asia University, Taichung 413, Taiwan; Fire Bureau of Taichung City Government, Taichung 408, Taiwan.
| | - Tai-Lin Huang
- Tungs' Taichung Metroharbor Hospital, Taichung 435, Taiwan.
| | - Chien-Yu Liu
- Department of Emergency Medicine, China Medical University Hospital, Taichung 404, Taiwan; Department of Bioinformatics and Medical Engineering, Asia University, Taichung 413, Taiwan.
| | - Yao-Te Tsai
- Department of Information Management, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan.
| | - Shao-Jen Weng
- Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung 407, Taiwan.
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Nishimura T, Suga M, Hongo T, Yumoto T, Nakao A, Ishihara S, Naito H. Comparison of outcomes of out-of-hospital cardiac arrest patients: Emergency calls placed from mobile phones vs. landline phones. Resusc Plus 2023; 15:100434. [PMID: 37583510 PMCID: PMC10423887 DOI: 10.1016/j.resplu.2023.100434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/11/2023] [Accepted: 07/13/2023] [Indexed: 08/17/2023] Open
Abstract
Background Until recently, calls to the emergency medical service (EMS) from landline phones, which display the caller's exact location at the dispatch center, had been common. Since the use of mobile phones has become widespread, many emergency calls are now made from mobile phones. Differences in outcomes of out-of-hospital cardiac arrest (OHCA) patients for whom EMS was called from mobile versus landline phones has not yet been fully elucidated. Methods We performed a retrospective, population-based analysis in Kobe, Japan to examine whether EMS calls from mobiles improved the prognosis of OHCA patients over EMS calls placed from landlines. The primary outcome was favorable neurological outcome, defined as Cerebral Performance Category (CPC) scores of 1 or 2 at discharge. Secondary outcomes were survival at one-month, survival at discharge, and time durations between call and EMS activities. Results Of 4,231 OHCA cases, 2,194 cases (706 landline cases vs. 1,488 mobile cases) were included in this study. The percentages of favorable neurological outcomes were 0.7% (5/706) in the landline group and 3.8% (56/1,488) in the mobile group. Adjusted multivariable logistic regression revealed that favorable neurological outcomes (odds ratio [OR] 3.03, 95% confidence interval [CI] 1.12-8.17, p = 0.03) were better in the mobile group, while one-month survival (OR 1.30, 95% CI 0.80-2.14, p = 0.29) was not significantly different. Bystander CPR was more frequently administered in the mobile group (landlines 61.3% vs. mobiles 68.4%, p < 0.01). Time durations between call to EMS dispatch (184.5 [IQR 157-220 s] vs. 205 [IQR 174-248 s], p < 0.01) and EMS arrival (476.5 [IQR 377-599 s] vs. 491 [IQR 407.5-611.5 s], p < 0.01) were shorter in the landline group. Conclusions Although the landline caller location display system seems effective for shorter times between EMS call and EMS arrival, mobile phone use was associated with better neurological outcomes.
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Affiliation(s)
- Takeshi Nishimura
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan
- Department of Emergency and Critical Care Medicine, Hyogo Emergency Medical Center, Japan
| | - Masafumi Suga
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan
- Department of Emergency and Critical Care Medicine, Hyogo Emergency Medical Center, Japan
| | - Takashi Hongo
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan
| | - Tetsuya Yumoto
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan
| | - Atsunori Nakao
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan
| | - Satoshi Ishihara
- Department of Emergency and Critical Care Medicine, Hyogo Emergency Medical Center, Japan
| | - Hiromichi Naito
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan
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Missel AL, Drucker CJ, Kume K, Shin J, Hergert L, Neumar RW, Kudenchuk PJ, Rea T. Association Between Bystander Physical Limitations, Delays in Chest Compression During Telecommunicator-Assisted Cardiopulmonary Resuscitation, and Outcome After Out-of-Hospital Cardiac Arrest. Resuscitation 2023; 188:109816. [PMID: 37146672 DOI: 10.1016/j.resuscitation.2023.109816] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/07/2023]
Abstract
BACKGROUND Promptly initiated bystander cardiopulmonary resuscitation (CPR) improves survival from out-of-hospital cardiac arrest (OHCA). Many OHCA patients require repositioning to a firm surface. We examined the association between repositioning, chest compression (CC) delay, and patient outcomes. METHODS We used a quality improvement registry from review of 9-1-1 dispatch audio recordings of OHCA among adults eligible for telecommunicator-assisted CPR (T-CPR) between 2013 and 2021. OHCA was categorized into 3 groups: CC not delayed, CC delayed due to bystander physical limitations to reposition the patient, or CC delayed for other (non-physical) reasons. The primary outcome was the repositioning interval, defined as the interval between the start of positioning instructions and CC onset. We used logistic regression to assess the odds ratio of survival according to CPR group, adjusting for potential confounders. RESULTS Of the 3,482 OHCA patients eligible for T-CPR, CPR was not delayed in 1,223 (35%), delayed due to repositioning in 1,413 (41%), and delayed for other reasons in 846 (24%). The repositioning interval was longest for the physical limitation delay group (137 secs, IQR-148) compared to the other delay group (81 secs, IQR-70) and the no delay group (51 secs, IQR-32) (p<0.001). Unadjusted survival was lowest in the physical limitation delay group (11%) versus the no delay (17%) and other delay (19%) groups and persisted after adjustment (p =0.009). CONCLUSION Bystander physical limitations are a common barrier to repositioning patients to begin CPR and are associated with lower likelihood of receiving CPR, longer times to begin CC, and lower survival.
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Affiliation(s)
- Amanda L Missel
- Department of Learning Health Sciences, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - Christopher J Drucker
- Emergency Medical Services Division, Public Health Seattle and King County, Seattle WA, USA
| | - Kosuke Kume
- Emergency Medical Services Division, Public Health Seattle and King County, Seattle WA, USA
| | - Jenny Shin
- Emergency Medical Services Division, Public Health Seattle and King County, Seattle WA, USA
| | - Lindsey Hergert
- Emergency Medical Services Division, Public Health Seattle and King County, Seattle WA, USA
| | - Robert W Neumar
- Department of Emergency Medicine, University of Michigan Medical School, Ann Arbor, MI, USA; Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, Ann Arbor, MI
| | - Peter J Kudenchuk
- Emergency Medical Services Division, Public Health Seattle and King County, Seattle WA, USA; Department of Medicine, Division of Cardiology, University of Washington, Seattle, Washington, USA
| | - Thomas Rea
- Emergency Medical Services Division, Public Health Seattle and King County, Seattle WA, USA; Department of Medicine, University of Washington, Seattle, Washington
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Farquharson B, Dixon D, Williams B, Torrens C, Philpott M, Laidlaw H, McDermott S. The psychological and behavioural factors associated with laypeople initiating CPR for out-of-hospital cardiac arrest: a systematic review. BMC Cardiovasc Disord 2023; 23:19. [PMID: 36639764 PMCID: PMC9840280 DOI: 10.1186/s12872-022-02904-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/17/2022] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Prompt, effective CPR greatly increases the chances of survival in out-of-hospital c ardiac arrest. However, it is often not provided, even by people who have previously undertaken training. Psychological and behavioural factors are likely to be important in relation to CPR initiation by lay-people but have not yet been systematically identified. METHODS Aim: to identify the psychological and behavioural factors associated with CPR initiation amongst lay-people. DESIGN Systematic review Data sources: Cochrane Library, MEDLINE, EMBASE, CINAHL, PsycInfo and Google Scholar. STUDY ELIGIBILITY CRITERIA Primary studies reporting psychological or behavioural factors and data on CPR initiation involving lay-people published (inception to 31 Dec 2021). STUDY APPRAISAL AND SYNTHESIS METHODS Potential studies were screened independently by two reviewers. Study characteristics, psychological and behavioural factors associated with CPR initiation were extracted from included studies, categorised by study type and synthesised narratively. RESULTS One hundred and five studies (150,820 participants) comprising various designs, populations and of mostly weak quality were identified. The strongest and most ecologically valid studies identified factors associated with CPR initiation: the overwhelming emotion of the situation, perceptions of capability, uncertainty about when CPR is appropriate, feeling unprepared and fear of doing harm. Current evidence comprises mainly atheoretical cross-sectional surveys using unvalidated measures with relatively little formal testing of relationships between proposed variables and CPR initiation. CONCLUSIONS Preparing people to manage strong emotions and increasing their perceptions of capability are likely important foci for interventions aiming to increase CPR initiation. The literature in this area would benefit from more robust study designs. SYSTEMATIC REVIEW REGISTRATION PROSPERO: CRD42018117438.
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Affiliation(s)
- Barbara Farquharson
- grid.11918.300000 0001 2248 4331NMAHP Research Unit, University of Stirling, Stirling, FK9 4LA UK
| | - Diane Dixon
- grid.7107.10000 0004 1936 7291University of Aberdeen, Aberdeen, UK
| | - Brian Williams
- grid.23378.3d0000 0001 2189 1357University of Highlands and Islands, Inverness, UK
| | - Claire Torrens
- grid.11918.300000 0001 2248 4331University of Stirling, Stirling, UK
| | - Melanie Philpott
- grid.11918.300000 0001 2248 4331University of Stirling, Stirling, UK
| | - Henriette Laidlaw
- grid.23378.3d0000 0001 2189 1357University of Highlands and Islands, Inverness, UK
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Ngo H, Birnie T, Finn J, Ball S, Perera N. Emotions in telephone calls to emergency medical services involving out-of-hospital cardiac arrest: A scoping review. Resusc Plus 2022; 11:100264. [PMID: 35801232 PMCID: PMC9253842 DOI: 10.1016/j.resplu.2022.100264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/25/2022] [Accepted: 06/15/2022] [Indexed: 11/25/2022] Open
Abstract
Aims The purpose of this scoping review was to identify and synthesise existing research evidence on emotions in the context of emergency phone calls to emergency medical services (EMS) involving out-of-hospital cardiac arrest (OHCA). The specific objectives were to identify studies that (1) described emotions during emergency OHCA calls; (2) specified an instrument or method for measuring/assessing emotions; and (3) examined the relationship between emotions and call outcomes or patient outcomes. Methods/Data sources Five databases were searched on 18 November 2021: Medline, Embase, PsycInfo, CINAHL, and the Cochrane Review Database. Included studies required the following three concepts to be addressed: emotions in the context of EMS calls that involved OHCA. Calls also needed to be made by a ‘second-party’ caller; and each study needed to address at least one of the three specific objectives, as outlined above. The review was conducted in accordance with the Joanna Briggs Institute guidelines for evidence synthesis for scoping reviews. Results Thirteen eligible studies were included for synthesis. All studies met Objective 1; six studies met Objective 2; and seven met Objective 3. One study reported patient fatality due to heightened emotions and ensuing ineffective communications between callers and call-takers. Conclusion The review highlights a significant gap in the evidence base of emotions in emergency OHCA-related calls, and the need for a more comprehensive and effective method in assessing and measuring emotions in this context. Relationships between emotions (their expressions and perceptions) and call outcomes (including patient outcomes) also need more rigorous investigation.
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Dowker SR, Smith G, O'Leary M, Missel AL, Trumpower B, Hunt N, Herbert L, Sams W, Kamdar N, Coulter-Thompson EI, Shields T, Swor R, Domeier R, Abir M, Friedman CP, Neumar RW, Nallamothu BK. Assessment of telecommunicator cardiopulmonary resuscitation performance during out-of-hospital cardiac arrest using a standardized tool for audio review. Resuscitation 2022; 178:102-108. [PMID: 35483496 PMCID: PMC11249783 DOI: 10.1016/j.resuscitation.2022.04.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/14/2022] [Accepted: 04/18/2022] [Indexed: 12/29/2022]
Abstract
OBJECTIVE Telecommunicator cardiopulmonary resuscitation (T-CPR) is a critical component of optimized out-of-hospital cardiac arrest (OHCA) care. We assessed a pilot tool to capture American Heart Association (AHA) T-CPR measures and T-CPR coaching by telecommunicators using audio review. METHODS Using a pilot tool, we conducted a retrospective review of 911 call audio from 65 emergency medical services-treated out-of-hospital cardiac arrest (OHCA) patients. Data collection included events (e.g., OHCA recognition), time intervals, and coaching quality measures. We calculated summary statistics for all performance and quality measures. RESULTS Among 65 cases, the patients' mean age was 64.7 years (SD: 14.6) and 17 (26.2%) were women. Telecommunicator recognition occurred in 72% of cases (47/65). Among 18 non-recognized cases, reviewers determined 12 (66%) were not recognizable based on characteristics of the call. Median time-to-recognition was 76 seconds (n = 40; IQR:39-138), while median time-to-first-instructed-compression was 198 seconds (n = 26; IQR:149-233). In 36 cases where coaching was needed, coaching on compression-depth occurred in 27 (75%); -rate in 28 (78%); and chest recoil in 10 (28%) instances. In 30 cases where repositioning was needed, instruction to position the patient's body flat occurred in 18 (60%) instances, on-back in 22 (73%) instances, and on-ground in 22 (73%) instances. CONCLUSIONS Successful collection of data to calculate AHA T-CPR measures using a pilot tool for audio review revealed performance near AHA benchmarks, although coaching instructions did not occur in many instances. Application of this standardized tool may aid in T-CPR quality review.
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Affiliation(s)
- Stephen R Dowker
- Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan Medical School, 1500 East Medical Center Drive, 2139 Cardiovascular Center, Ann Arbor, MI 48109, United States; Department of Learning Health Sciences, University of Michigan Medical School, 209 Victor Vaughan Building, 2054, 1111 East Catherine Street, Ann Arbor, MI 48109, United States; Institute for Healthcare Policy and Innovation, University of Michigan, 2800 Plymouth Road, North Campus Research Complex (NCRC), Building 16, Ann Arbor, MI 48109, United States
| | - Graham Smith
- Department of Emergency Medicine, University of Michigan Medical School, 1500 East Medical Center Drive, Ann Arbor, MI 48109, United States; Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, Building 10-A103, North Campus Research Complex (NCRC), 2800 Plymouth Road, Ann Arbor, MI 48109, United States
| | - Michael O'Leary
- Institute for Healthcare Policy and Innovation, University of Michigan, 2800 Plymouth Road, North Campus Research Complex (NCRC), Building 16, Ann Arbor, MI 48109, United States
| | - Amanda L Missel
- Department of Learning Health Sciences, University of Michigan Medical School, 209 Victor Vaughan Building, 2054, 1111 East Catherine Street, Ann Arbor, MI 48109, United States
| | - Brad Trumpower
- Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan Medical School, 1500 East Medical Center Drive, 2139 Cardiovascular Center, Ann Arbor, MI 48109, United States
| | - Nathaniel Hunt
- Department of Emergency Medicine, University of Michigan Medical School, 1500 East Medical Center Drive, Ann Arbor, MI 48109, United States; Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, Building 10-A103, North Campus Research Complex (NCRC), 2800 Plymouth Road, Ann Arbor, MI 48109, United States
| | - Logan Herbert
- Department of Emergency Medicine, University of Michigan Medical School, 1500 East Medical Center Drive, Ann Arbor, MI 48109, United States
| | - Woodrow Sams
- Department of Emergency Medicine, University of Michigan Medical School, 1500 East Medical Center Drive, Ann Arbor, MI 48109, United States
| | - Neil Kamdar
- Institute for Healthcare Policy and Innovation, University of Michigan, 2800 Plymouth Road, North Campus Research Complex (NCRC), Building 16, Ann Arbor, MI 48109, United States; Department of Obstetrics and Gynecology, University of Michigan Medical School, L4001 Women's Hospital, 1500, East Medical Center Drive, Ann Arbor, MI 48109, United States; Department of Surgery, University of Michigan Medical School, 2101 Taubman Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109, United States
| | - Emilee I Coulter-Thompson
- Department of Learning Health Sciences, University of Michigan Medical School, 209 Victor Vaughan Building, 2054, 1111 East Catherine Street, Ann Arbor, MI 48109, United States; Institute for Healthcare Policy and Innovation, University of Michigan, 2800 Plymouth Road, North Campus Research Complex (NCRC), Building 16, Ann Arbor, MI 48109, United States
| | - Theresa Shields
- Department of Emergency Medicine, University of Michigan Medical School, 1500 East Medical Center Drive, Ann Arbor, MI 48109, United States
| | - Robert Swor
- Department of Emergency Medicine, William Beaumont Hospital, 3601 West 13 Mile Road, Royal Oak, MI 48073, United States
| | - Robert Domeier
- Saint Joseph Mercy Emergency Center - Ann Arbor, 5301 McAuley Drive, Ypsilanti, MI 48197, United States
| | - Mahshid Abir
- Department of Emergency Medicine, University of Michigan Medical School, 1500 East Medical Center Drive, Ann Arbor, MI 48109, United States; Institute for Healthcare Policy and Innovation, University of Michigan, 2800 Plymouth Road, North Campus Research Complex (NCRC), Building 16, Ann Arbor, MI 48109, United States; Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, Building 10-A103, North Campus Research Complex (NCRC), 2800 Plymouth Road, Ann Arbor, MI 48109, United States; RAND Corporation, 1776 Main Street, Santa Monica, CA 90401, United States
| | - Charles P Friedman
- Department of Learning Health Sciences, University of Michigan Medical School, 209 Victor Vaughan Building, 2054, 1111 East Catherine Street, Ann Arbor, MI 48109, United States
| | - Robert W Neumar
- Department of Emergency Medicine, University of Michigan Medical School, 1500 East Medical Center Drive, Ann Arbor, MI 48109, United States; Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, Building 10-A103, North Campus Research Complex (NCRC), 2800 Plymouth Road, Ann Arbor, MI 48109, United States
| | - Brahmajee K Nallamothu
- Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan Medical School, 1500 East Medical Center Drive, 2139 Cardiovascular Center, Ann Arbor, MI 48109, United States; Institute for Healthcare Policy and Innovation, University of Michigan, 2800 Plymouth Road, North Campus Research Complex (NCRC), Building 16, Ann Arbor, MI 48109, United States; Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, Building 10-A103, North Campus Research Complex (NCRC), 2800 Plymouth Road, Ann Arbor, MI 48109, United States.
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Aldridge ES, Perera N, Ball S, Finn J, Bray J. A scoping review to determine the barriers and facilitators to initiation and performance of bystander cardiopulmonary resuscitation during emergency calls. Resusc Plus 2022; 11:100290. [PMID: 36034637 PMCID: PMC9403560 DOI: 10.1016/j.resplu.2022.100290] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/02/2022] [Accepted: 08/02/2022] [Indexed: 11/28/2022] Open
Affiliation(s)
- Emogene S. Aldridge
- Prehospital, Resuscitation and Emergency Care Research Unit, School of Nursing, Curtin University, Western Australia, Australia
- Corresponding author.
| | - Nirukshi Perera
- Prehospital, Resuscitation and Emergency Care Research Unit, School of Nursing, Curtin University, Western Australia, Australia
| | - Stephen Ball
- Prehospital, Resuscitation and Emergency Care Research Unit, School of Nursing, Curtin University, Western Australia, Australia
- St John Western Australia, Western Australia, Australia
| | - Judith Finn
- Prehospital, Resuscitation and Emergency Care Research Unit, School of Nursing, Curtin University, Western Australia, Australia
- St John Western Australia, Western Australia, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Victoria, Australia
| | - Janet Bray
- Prehospital, Resuscitation and Emergency Care Research Unit, School of Nursing, Curtin University, Western Australia, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Victoria, Australia
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10
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Breindahl N, Granholm A, Jensen TW, Ersbøll AK, Myklebust H, Lippert F, Lippert A. Assessment of breathing in cardiac arrest: a randomised controlled trial of three teaching methods among laypersons. BMC Emerg Med 2021; 21:114. [PMID: 34627156 PMCID: PMC8502323 DOI: 10.1186/s12873-021-00513-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 09/28/2021] [Indexed: 11/10/2022] Open
Abstract
Background The aim of this trial was to compare a video- and a simulation-based teaching method to the conventional lecture-based method, hypothesizing that the video- and simulation-based teaching methods would lead to improved recognition of breathing patterns during cardiac arrest. Methods In this Danish, investigator-initiated, stratified, randomised controlled trial, adult laypersons (university students, military conscripts and elderly retirees) participating in European Resuscitation Council Basic Life Support courses were randomised to receive teaching on how to recognise breathing patterns using a lecture- (usual practice), a video-, or a simulation-based teaching method. The primary outcome was recognition of breathing patterns in nine videos of actors simulating normal breathing, no breathing, and agonal breathing (three of each). We analysed outcomes using logistic regression models and present results as odds ratios (ORs) with 95% confidence intervals (CIs) and P-values from likelihood ratio tests. Results One hundred fifty-three participants were included in the analyses from February 2, 2018 through May 21, 2019 and recognition of breathing patterns was statistically significantly different between the teaching methods (P = 0.013). Compared to lecture-based teaching (83% correct answers), both video- (90% correct answers; OR 1.77, 95% CI: 1.19–2.64) and simulation-based teaching (88% correct answers; OR 1.48; 95% CI: 1.01–2.17) led to significantly more correct answers. Video-based teaching was not statistically significantly different compared to simulation-based teaching (OR 1.20; 95% CI: 0.78–1.83). Conclusion Video- and simulation-based teaching methods led to improved recognition of breathing patterns among laypersons participating in adult Basic Life Support courses compared to the conventional lecture-based teaching method. Supplementary Information The online version contains supplementary material available at 10.1186/s12873-021-00513-4.
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Affiliation(s)
- Niklas Breindahl
- Copenhagen Academy for Medical Education and Simulation, Centre for HR&U, Borgmester Ib Juuls Vej 1, 2730, Herlev, Capital Region of Denmark, Denmark.
| | - Anders Granholm
- Copenhagen Academy for Medical Education and Simulation, Centre for HR&U, Borgmester Ib Juuls Vej 1, 2730, Herlev, Capital Region of Denmark, Denmark.,Department of Intensive Care, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Theo Walther Jensen
- Copenhagen Academy for Medical Education and Simulation, Centre for HR&U, Borgmester Ib Juuls Vej 1, 2730, Herlev, Capital Region of Denmark, Denmark.,Copenhagen Emergency Medical Services, Copenhagen, Denmark
| | - Annette Kjær Ersbøll
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
| | | | - Freddy Lippert
- Copenhagen Emergency Medical Services, Copenhagen, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anne Lippert
- Copenhagen Academy for Medical Education and Simulation, Centre for HR&U, Borgmester Ib Juuls Vej 1, 2730, Herlev, Capital Region of Denmark, Denmark
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11
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Early recognition of a caller's emotion in out-of-hospital cardiac arrest dispatching: An artificial intelligence approach. Resuscitation 2021; 167:144-150. [PMID: 34461203 DOI: 10.1016/j.resuscitation.2021.08.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 08/11/2021] [Accepted: 08/18/2021] [Indexed: 11/23/2022]
Abstract
AIM This study aimed to develop an AI model for detecting a caller's emotional state during out-of-hospital cardiac arrest calls by processing audio recordings of dispatch communications. METHODS Audio recordings of 337 out-of-hospital cardiac arrest calls from March-April 2011 were retrieved. The callers' emotional state was classified based on the emotional content and cooperative scores. Mel-frequency cepstral coefficients extracted essential information from the voice signals. A support vector machine was utilised for the automatic judgement, and repeated random sub-sampling cross validation (RRS-CV) was applied to evaluate robustness. The results from the artificial intelligence classifier were compared with the consensus of expert reviewers. RESULTS The audio recordings were classified into five emotional content and cooperative score levels. The proposed model had an average positive predictive value of 72.97%, a negative predictive value of 93.47%, sensitivity of 38.76%, and specificity of 98.29%. If only the first 10 seconds of the recordings were considered, it had an average positive predictive value of 84.62%, a negative predictive value of 93.57%, sensitivity of 52.38%, and specificity of 98.64%. The artificial intelligence model's performance maintained preferable results for emotionally stable cases. CONCLUSION Artificial intelligence models can possibly facilitate the judgement of callers' emotional states during dispatch conversations. This model has the potential to be utilised in practice, by pre-screening emotionally stable callers, thus allowing dispatchers to focus on cases that are judged to be emotionally unstable. Further research and validation are required to improve the model's performance and make it suitable for the general population.
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12
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Discrimination between the presence and absence of spontaneous circulation using smartphone seismocardiography: A preliminary investigation. Resuscitation 2021; 166:66-73. [PMID: 34271129 DOI: 10.1016/j.resuscitation.2021.07.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/01/2021] [Accepted: 07/02/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND Seismocardiography measures the vibrations produced by the beating heart using an accelerometer sensor placed on the chest. We evaluated the ability of smartphone seismocardiography to distinguish between the presence and absence of spontaneous circulation. METHODS Seismocardiography signals were obtained using a smartphone placed on the sternum in a convenience sample of 60 adult patients (30 comatose patients with spontaneous circulation and 30 deceased patients). The maximum, minimum, and standard deviation (SD) of acceleration values for head-to-foot, right-to-left, and dorsoventral axes and the three axis-root mean square (RMS) of the acceleration signals were calculated. Blinded observers (n = 156) were each asked to determine the presence or absence of spontaneous circulation based on seismocardiography video clips for each of the 60 patients. RESULTS The seismocardiography revealed periodic large positive peaks in the patients with spontaneous circulation, which were absent in the patients without spontaneous circulation. For each of the four output measurements (three independent axes plus the three-axis RMS), the acceleration maxima and SD were significantly higher and the minima significantly lower in the patients with spontaneous circulation than in those without spontaneous circulation (all P < 0.001 except the minimum of three axis-RMS results [P = 0.009]). The observers accurately identified the seismocardiography signals from patients without spontaneous circulation, with a sensitivity of 97.6% (95% confidence interval, 97.0%-98.2%) and a specificity of 98.4% (95% confidence interval, 97.8%-99.0%). CONCLUSIONS In conclusion, blinded observers accurately distinguished between seismocardiography signals from patients with and without spontaneous circulation.
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13
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14
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Abstract
The European Resuscitation Council (ERC) has produced these Systems Saving Lives guidelines, which are based on the 2020 International Consensus on Cardiopulmonary Resuscitation Science with Treatment Recommendations. The topics covered include chain of survival, measuring performance of resuscitation, social media and smartphones apps for engaging community, European Restart a Heart Day, World Restart a Heart, KIDS SAVE LIVES campaign, lower-resource setting, European Resuscitation Academy and Global Resuscitation Alliance, early warning scores, rapid response systems, and medical emergency team, cardiac arrest centres and role of dispatcher.
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15
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Vaillancourt C, Charette M, Naidoo S, Taljaard M, Church M, Hodges S, Leduc S, Christenson J, Cheskes S, Dainty K, Feldman M, Goldstein J, Tallon J, Helmer J, Sibley A, Spidel M, Blanchard I, Garland J, Cyr K, Brehaut J, Dorian P, Lacroix C, Zambon S, Thiruganasambandamoorthy V. Multi-centre implementation of an Educational program to improve the Cardiac Arrest diagnostic accuracy of ambulance Telecommunicators and survival outcomes for sudden cardiac arrest victims: the EduCATe study design and methodology. BMC Emerg Med 2021; 21:26. [PMID: 33663395 PMCID: PMC7931555 DOI: 10.1186/s12873-021-00416-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 02/11/2021] [Indexed: 12/03/2022] Open
Abstract
Background Sudden cardiac death remains a leading cause of mortality in Canada, resulting in more than 35,000 deaths annually. Most cardiac arrest victims collapse in their own home (85% of the time) and 50% are witnessed by a family member or bystander. Survivors have a quality of life similar to the general population, but the overall survival rate for out-of-hospital cardiac arrest (OHCA) rarely exceeds 8%. Victims are almost four times more likely to survive when receiving bystander CPR, but bystander CPR rates have remained low in Canada over the past decade, not exceeding 15–25% until recently. Telecommunication-assisted CPR instructions have been shown to significantly increase bystander CPR rates, but agonal breathing may be misinterpreted as a sign of life by 9–1-1 callers and telecommunicators, and is responsible for as much as 50% of missed OHCA diagnoses. We sought to improve the ability and speed with which ambulance telecommunicators can recognize OHCA over the phone, initiate timely CPR instructions, and improve survival. Methods In this multi-center national study, we will implement and evaluate an educational program developed for ambulance telecommunicators using a multiple baseline interrupted time-series design. We will compare outcomes 12 months before and after the implementation of a 20-min theory-based educational video addressing barriers to recognition of OHCA while in the presence of agonal breathing. Participating Canadian sites demonstrated prior ability to collect standardized data on OHCA. Data will be collected from eligible 9–1-1 recordings, paramedic documentation and hospital medical records. Eligible cases will include suspected or confirmed OHCA of presumed cardiac origin in patients of any age with attempted resuscitation. Discussion The ability of telecommunication-assisted CPR instructions to improve bystander CPR and survival rates for OHCA victims is undeniable. The ability of telecommunicators to recognize OHCA over the phone is unequivocally impeded by relative lack of training on agonal breathing, and reluctance to initiate CPR instructions when in doubt. Our pilot data suggests the potential impact of this project will be to increase absolute OHCA recognition and bystander CPR rates by at least 10%, and absolute out-of-hospital cardiac arrest survival by 5% or more. Trial registration Prospectively registered on March 28, 2019 at ClinicalTrials.gov identifier: NCT03894059.
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Affiliation(s)
- Christian Vaillancourt
- Clinical Epidemiology Unit, Ottawa Hospital Research Institute, The Ottawa Hospital, Civic Campus, Rm F649, 1053 Carling Ave., Ottawa, Ontario, K1Y 4E9, Canada. .,Department of Emergency Medicine, University of Ottawa, Ottawa, Canada. .,School of Epidemiology & Public Health-Faculty of Medicine, University of Ottawa, Ottawa, Canada.
| | - Manya Charette
- Clinical Epidemiology Unit, Ottawa Hospital Research Institute, The Ottawa Hospital, Civic Campus, Rm F649, 1053 Carling Ave., Ottawa, Ontario, K1Y 4E9, Canada
| | - Sarika Naidoo
- Clinical Epidemiology Unit, Ottawa Hospital Research Institute, The Ottawa Hospital, Civic Campus, Rm F649, 1053 Carling Ave., Ottawa, Ontario, K1Y 4E9, Canada
| | - Monica Taljaard
- Clinical Epidemiology Unit, Ottawa Hospital Research Institute, The Ottawa Hospital, Civic Campus, Rm F649, 1053 Carling Ave., Ottawa, Ontario, K1Y 4E9, Canada.,School of Epidemiology & Public Health-Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Matthew Church
- Cardiac Arrest Survivor, Study Patient Partner, Toronto, Canada
| | - Stephanie Hodges
- Central Ambulance Communications Centre, Ottawa Paramedic Service, Ottawa, Canada
| | | | - Jim Christenson
- Department of Emergency Medicine, University of British Columbia, Vancouver, Canada.,Provincial Health Services Authority, British Columbia Emergency Health Services, Vancouver, Canada.,Center for Health Evaluation and Outcomes Sciences, Providence Health Care Research Institute, Vancouver, Canada
| | - Sheldon Cheskes
- Sunnybrook Centre for Prehospital Medicine, Toronto, Canada.,Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada.,Department of Family and Community Medicine, University of Toronto, Toronto, Canada
| | - Katie Dainty
- Department of Research and Innovation, North York General Hospital, Toronto, Canada.,Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, Canada
| | | | - Judah Goldstein
- Division of Emergency Medical Services, Dalhousie University, Halifax, Canada.,Emergency Health Services Operations, Nova Scotia, Canada
| | - John Tallon
- Department of Emergency Medicine, University of British Columbia, Vancouver, Canada.,Provincial Health Services Authority, British Columbia Emergency Health Services, Vancouver, Canada.,Department of Emergency Medicine, Dalhousie University, Halifax, Canada
| | - Jennie Helmer
- Provincial Health Services Authority, British Columbia Emergency Health Services, Vancouver, Canada
| | - Aaron Sibley
- Department of Emergency Medicine, Dalhousie University, Halifax, Canada.,Division of Paramedicine, University of Prince Edward Island, Charlottetown, Canada
| | - Matthew Spidel
- Island Emergency Medical Services, Prince Edward Island, Charlottetown, Canada
| | - Ian Blanchard
- Department of Emergency Medical Services, Alberta Health Services, Calgary, Canada.,Department of Community Health Sciences-Cumming School of Medicine, University of Calgary, Calgary, Canada
| | | | - Kathryn Cyr
- Clinical Epidemiology Unit, Ottawa Hospital Research Institute, The Ottawa Hospital, Civic Campus, Rm F649, 1053 Carling Ave., Ottawa, Ontario, K1Y 4E9, Canada
| | - Jamie Brehaut
- Clinical Epidemiology Unit, Ottawa Hospital Research Institute, The Ottawa Hospital, Civic Campus, Rm F649, 1053 Carling Ave., Ottawa, Ontario, K1Y 4E9, Canada.,School of Epidemiology & Public Health-Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Paul Dorian
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada.,Division of Cardiology and Division of Clinical Pharmacology, University of Toronto, Toronto, Canada
| | - Colette Lacroix
- International Business Machines (IBM) Canada, Ottawa, Canada
| | - Sandra Zambon
- Heart and Stroke Foundation of Canada, Toronto, Canada
| | - Venkatesh Thiruganasambandamoorthy
- Clinical Epidemiology Unit, Ottawa Hospital Research Institute, The Ottawa Hospital, Civic Campus, Rm F649, 1053 Carling Ave., Ottawa, Ontario, K1Y 4E9, Canada.,Department of Emergency Medicine, University of Ottawa, Ottawa, Canada.,School of Epidemiology & Public Health-Faculty of Medicine, University of Ottawa, Ottawa, Canada
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16
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Riou M, Ball S, Morgan A, Gallant S, Perera N, Whiteside A, Bray J, Bailey P, Finn J. 'I think he's dead': A cohort study of the impact of caller declarations of death during the emergency call on bystander CPR. Resuscitation 2021; 160:1-6. [PMID: 33444705 DOI: 10.1016/j.resuscitation.2021.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 12/04/2020] [Accepted: 01/01/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND In emergency calls for out-of-hospital cardiac arrest (OHCA), dispatchers are instrumental in the provision of bystander cardiopulmonary resuscitation (CPR) through the recruitment of the caller. We explored the impact of caller perception of patient viability on initial recognition of OHCA by the dispatcher, rates of bystander CPR and early patient survival outcomes. METHODS We conducted a retrospective cohort study of 422 emergency calls where OHCA was recognised by the dispatcher and resuscitation was attempted by paramedics. We used the call recordings, dispatch data, and electronic patient care records to identify caller statements that the patient was dead, initial versus delayed recognition of OHCA by the dispatcher, caller acceptance to perform CPR, provision of bystander-CPR, prehospital return of spontaneous circulation (ROSC), and ROSC on arrival at the Emergency Department. RESULTS Initial recognition of OHCA by the dispatcher was more frequent in cases with a declaration of death by the caller than in cases without (92%, 73/79 vs. 66%, 227/343, p < 0.001). Callers who expressed such a view (19% of cases) were more likely to decline CPR (38% vs. 10%, adjusted odds ratio 4.59, 95% confidence interval 2.49-8.52, p < 0.001). Yet, 15% (12/79) of patients described as non-viable by callers achieved ROSC. CONCLUSION Caller statements that the patient is dead are helpful for dispatchers to recognise OHCA early, but potentially detrimental when recruiting the caller to perform CPR. There is an opportunity to improve the rate of bystander-CPR and patient outcomes if dispatchers are attentive to caller statements about viability.
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Affiliation(s)
- Marine Riou
- Centre de Recherche en Linguistique Appliquée (CeRLA), Université Lumière Lyon 2, Lyon, 69007, France; Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia.
| | - Stephen Ball
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia; St John Ambulance WA, Belmont, WA 6104, Australia
| | - Alani Morgan
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia
| | - Sheryl Gallant
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia
| | - Nirukshi Perera
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia
| | | | - Janet Bray
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Victoria 3004, Australia
| | - Paul Bailey
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia; St John Ambulance WA, Belmont, WA 6104, Australia
| | - Judith Finn
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia; St John Ambulance WA, Belmont, WA 6104, Australia; Emergency Medicine, The University of Western Australia, Crawley, WA 6009, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Victoria 3004, Australia
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17
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Diagnosis of out-of-hospital cardiac arrest by emergency medical dispatch: A diagnostic systematic review. Resuscitation 2020; 159:85-96. [PMID: 33253767 DOI: 10.1016/j.resuscitation.2020.11.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 11/01/2020] [Accepted: 11/18/2020] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Cardiac arrest is a time-sensitive condition requiring urgent intervention. Prompt and accurate recognition of cardiac arrest by emergency medical dispatchers at the time of the emergency call is a critical early step in cardiac arrest management allowing for initiation of dispatcher-assisted bystander CPR and appropriate and timely emergency response. The overall accuracy of dispatchers in recognizing cardiac arrest is not known. It is also not known if there are specific call characteristics that impact the ability to recognize cardiac arrest. METHODS We performed a systematic review to examine dispatcher recognition of cardiac arrest as well as to identify call characteristics that may affect their ability to recognize cardiac arrest at the time of emergency call. We searched electronic databases for terms related to "emergency medical dispatcher", "cardiac arrest", and "diagnosis", among others, with a focus on studies that allowed for calculating diagnostic test characteristics (e.g. sensitivity and specificity). The review was consistent with Grading of Recommendations, Assessment, Development and Evaluation (GRADE) method for evidence evaluation. RESULTS We screened 2520 article titles, resulting in 47 studies included in this review. There was significant heterogeneity between studies with a high risk of bias in 18 of the 47 which precluded performing meta-analyses. The reported sensitivities for cardiac arrest recognition ranged from 0.46 to 0.98 whereas specificities ranged from 0.32 to 1.00. There were no obvious differences in diagnostic accuracy between different dispatching criteria/algorithms or with the level of education of dispatchers. CONCLUSION The sensitivity and specificity of cardiac arrest recognition at the time of emergency call varied across dispatch centres and did not appear to differ by dispatch algorithm/criteria used or education of the dispatcher, although comparisons were hampered by heterogeneity across studies. Future efforts should focus on ways to improve sensitivity of cardiac arrest recognition to optimize patient care and ensure appropriate and timely resource utilization.
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18
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Schwarzkoph M, Yin L, Hergert L, Drucker C, Counts CR, Eisenberg M. Seizure-like presentation in OHCA creates barriers to dispatch recognition of cardiac arrest. Resuscitation 2020; 156:230-236. [DOI: 10.1016/j.resuscitation.2020.06.036] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/23/2020] [Accepted: 06/15/2020] [Indexed: 12/14/2022]
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Adult Basic Life Support: International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations. Resuscitation 2020; 156:A35-A79. [PMID: 33098921 PMCID: PMC7576327 DOI: 10.1016/j.resuscitation.2020.09.010] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This 2020 International Consensus on Cardiopulmonary Resuscitation (CPR) and Emergency Cardiovascular Care Science With Treatment Recommendations on basic life support summarizes evidence evaluations performed for 20 topics that were prioritized by the Basic Life Support Task Force of the International Liaison Committee on Resuscitation. The evidence reviews include 16 systematic reviews, 3 scoping reviews, and 1 evidence update. Per agreement within the International Liaison Committee on Resuscitation, new or revised treatment recommendations were only made after a systematic review. Systematic reviews were performed for the following topics: dispatch diagnosis of cardiac arrest, use of a firm surface for CPR, sequence for starting CPR (compressions-airway-breaths versus airway-breaths-compressions), CPR before calling for help, duration of CPR cycles, hand position during compressions, rhythm check timing, feedback for CPR quality, alternative techniques, public access automated external defibrillator programs, analysis of rhythm during chest compressions, CPR before defibrillation, removal of foreign-body airway obstruction, resuscitation care for suspected opioid-associated emergencies, drowning, and harm from CPR to victims not in cardiac arrest. The topics that resulted in the most extensive task force discussions included CPR during transport, CPR before calling for help, resuscitation care for suspected opioid-associated emergencies, feedback for CPR quality, and analysis of rhythm during chest compressions. After discussion of the scoping reviews and the evidence update, the task force prioritized several topics for new systematic reviews.
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20
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Olasveengen TM, Mancini ME, Perkins GD, Avis S, Brooks S, Castrén M, Chung SP, Considine J, Couper K, Escalante R, Hatanaka T, Hung KK, Kudenchuk P, Lim SH, Nishiyama C, Ristagno G, Semeraro F, Smith CM, Smyth MA, Vaillancourt C, Nolan JP, Hazinski MF, Morley PT, Svavarsdóttir H, Raffay V, Kuzovlev A, Grasner JT, Dee R, Smith M, Rajendran K. Adult Basic Life Support: 2020 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations. Circulation 2020; 142:S41-S91. [DOI: 10.1161/cir.0000000000000892] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
This2020 International Consensus on Cardiopulmonary Resuscitation(CPR)and Emergency Cardiovascular Care Science With Treatment Recommendationson basic life support summarizes evidence evaluations performed for 22 topics that were prioritized by the Basic Life Support Task Force of the International Liaison Committee on Resuscitation. The evidence reviews include 16 systematic reviews, 5 scoping reviews, and 1 evidence update. Per agreement within the International Liaison Committee on Resuscitation, new or revised treatment recommendations were only made after a systematic review.Systematic reviews were performed for the following topics: dispatch diagnosis of cardiac arrest, use of a firm surface for CPR, sequence for starting CPR (compressions-airway-breaths versus airway-breaths-compressions), CPR before calling for help, duration of CPR cycles, hand position during compressions, rhythm check timing, feedback for CPR quality, alternative techniques, public access automated external defibrillator programs, analysis of rhythm during chest compressions, CPR before defibrillation, removal of foreign-body airway obstruction, resuscitation care for suspected opioid-associated emergencies, drowning, and harm from CPR to victims not in cardiac arrest.The topics that resulted in the most extensive task force discussions included CPR during transport, CPR before calling for help, resuscitation care for suspected opioid-associated emergencies, feedback for CPR quality, and analysis of rhythm during chest compressions. After discussion of the scoping reviews and the evidence update, the task force prioritized several topics for new systematic reviews.
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21
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Fukushima H, Bolstad F. Telephone CPR: Current Status, Challenges, and Future Perspectives. Open Access Emerg Med 2020; 12:193-200. [PMID: 32982493 PMCID: PMC7490094 DOI: 10.2147/oaem.s259700] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 08/12/2020] [Indexed: 12/16/2022] Open
Abstract
With each successive update of the cardiopulmonary resuscitation (CPR) guidelines, the role of dispatchers in sudden cardiac arrest (CA) has grown. Dispatchers instruct callers in how to perform CPR until the arrival of emergency medical service (EMS) professionals. This is widely known as telephone CPR (TCPR) or dispatch-assisted CPR (DACPR). Studies have shown the efficacy of TCPR in increasing the survival rate of sudden CA. The TCPR process, however, is challenging and needs to be constantly evaluated and refined in order to improve the survival rate of sudden CA victims throughout the world. In this review article, the current status, challenges, and future perspectives of TCPR are discussed with a view to providing a research foundation from which to launch further studies into the effective role of dispatchers in sudden CA.
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Affiliation(s)
- Hidetada Fukushima
- Department of Emergency and Critical Care Medicine, Nara Medical University, Kashihara City, Nara, Japan
| | - Francesco Bolstad
- Department of Clinical English, Nara Medical University, Kashihara City, Nara, Japan
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22
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Siman-Tov M, Strugo R, Podolsky T, Rosenblat I, Blushtein O. Impact of dispatcher assisted CPR on ROSC rates: A National Cohort Study. Am J Emerg Med 2020; 44:333-338. [PMID: 32336582 DOI: 10.1016/j.ajem.2020.04.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 04/11/2020] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION Out of hospital cardiac arrest (OHCA) is a leading cause of mortality. Bystander CPR is associated with increased OHCA survival rates. Dispatcher assisted CPR (DA-CPR) increases rates of bystander CPR, shockable rhythm prevalence, and improves ROSC rates. The aim of this article was to quantify and qualify DA-CPR (acceptance/rejection), ROSC, shockable rhythms, and associations between factors as seen in MDA, Israel, during 2018. METHODS All 2018 OHCA incidents in Israel's national EMS database were studied retrospectively. We identified rates and reasons for DA-CPR acceptance or rejection. Reasons DA-CPR was rejected/non-feasible by caller were categorized into 5 groups. ROSC was the primary outcome. We created two study groups: 1) No DA-CPR (n = 542). 2) DA-CPR & team CPR (n = 1768). RESULTS DA-CPR was accepted by caller 76.5% of incidents. In group 1, ROSC rates were significantly lower compared to patients in group 2 (12.4% vs. 21.3% p < .001). Group 1 had 12.4% shockable rhythms vs. 17.1% in group 2 (DA-CPR and team CPR). Of the total 369 shockable cases, 42.3% (156) achieved ROSC, in the non-shockable rhythms only 14.8% achieved ROSC. CONCLUSIONS OHCA victims receiving dispatcher assisted bystander CPR have higher rates of ROSC and more prevalence of shockable rhythms. MDA dispatchers offer DA-CPR and it is accepted 76.5% of the time. MDA patients receiving DA-CPR had higher ROSC rates and more shockable rhythms. MDA's age demographic is high, possibly affecting ROSC and shockable rhythm rates.
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Affiliation(s)
- Maya Siman-Tov
- Magen David Adom, Tel Aviv, Israel; Sackler Faculty, Public Health School, Tel-Aviv University, Tel-Aviv, Israel.
| | | | | | | | - Oren Blushtein
- Magen David Adom, Tel Aviv, Israel; Sackler Faculty, Public Health School, Tel-Aviv University, Tel-Aviv, Israel
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Tanaka S, Hara T, Tsukigase K, Sagisaka R, Myklebust H, Birkenes TS, Takyu H, Kidokoro Y, Tanaka H. A pilot study of Practice While Watch based 50 min school quality cardiopulmonary resuscitation classroom training: a cluster randomized control trial. Acute Med Surg 2020; 7:e455. [PMID: 31988767 PMCID: PMC6971470 DOI: 10.1002/ams2.455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 08/08/2019] [Indexed: 11/11/2022] Open
Abstract
Aim Cardiopulmonary resuscitation (CPR) training in schools can increase the rate of bystander CPR. We assessed whether a "Quality CPR (QCPR) Classroom" can support CPR performance by students trained by a teacher who is not a CPR instructor. Methods A cluster randomized trial was undertaken to assess the effectiveness of a 50-min Practice While Watch CPR training program enhanced by QCPR Classroom, which used 42 manikins connected by Bluetooth to real-time feedback monitoring. Fifty-seven students were divided into Group 1, taught by a non-CPR-instructor, and Group 2, taught by a CPR instructor. Psychomotor and cognitive tests were administered before and after training. Primary outcomes were post-training compression depth and rate and percent of improvement in adequate depth, recoil, and overall score. The secondary outcome was risk improvement. Results Post-training, Group 1 achieved 62.1 ± 7.7 mm and 118.0 ± 3.6 compressions/min whereas Group 2 achieved 57.4 ± 9.8 mm and 119.8 ± 5.4 compressions/min. The overall score improvement in percentage points was 36.4 ± 25.9% and 27.0 ± 27.7%, respectively (P ≤ 0.001 for both). The adequate depth improvement in percentage points was 22.4 ± 35.4% and 32.5 ± 40.0%, respectively (P = 0.33). Teaching by a non-CPR instructor improved student cognitive knowledge. Conclusions Using a QCPR Classroom to enhance CPR teaching by a non-CPR-instructor results in similar or better outcomes compared to using a CPR instructor. Use of a Practice While Watch QCPR Classroom will provide adequate quality in preparing students for CPR.
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Affiliation(s)
- Shota Tanaka
- Research Institute of Disaster Management and EMS Kokushikan University Tokyo Japan
| | - Takahiro Hara
- Graduate School of EMS System Kokushikan University Tokyo Japan
| | - Kyoko Tsukigase
- Research Institute of Disaster Management and EMS Kokushikan University Tokyo Japan
| | - Ryo Sagisaka
- Graduate School of EMS System Kokushikan University Tokyo Japan
| | | | | | - Hiroshi Takyu
- Graduate School of EMS System Kokushikan University Tokyo Japan
| | - Yutaro Kidokoro
- Research Institute of Disaster Management and EMS Kokushikan University Tokyo Japan
| | - Hideharu Tanaka
- Research Institute of Disaster Management and EMS Kokushikan University Tokyo Japan.,Graduate School of EMS System Kokushikan University Tokyo Japan
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Berg DD, Bobrow BJ, Berg RA. Key components of a community response to out-of-hospital cardiac arrest. Nat Rev Cardiol 2020; 16:407-416. [PMID: 30858511 DOI: 10.1038/s41569-019-0175-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Out-of-hospital cardiac arrest (OHCA) remains a leading cause of death worldwide, with substantial geographical, ethnic and socioeconomic disparities in outcome. Successful resuscitation efforts depend on the 'chain of survival', which includes immediate recognition of cardiac arrest and activation of the emergency response system, early bystander cardiopulmonary resuscitation (CPR) with an emphasis on chest compressions, rapid defibrillation, basic and advanced emergency medical services and integrated post-cardiac arrest care. Well-orchestrated telecommunicator CPR programmes can improve rates of bystander CPR - a critical link in the chain of survival. High-performance CPR by emergency medical service providers includes minimizing interruptions in chest compressions and ensuring adequate depth of compressions. Developing local, regional and statewide systems with dedicated high-performing cardiac resuscitation centres for post-resuscitation care can substantially improve survival after OHCA. Innovative digital tools for recognizing cardiac arrest where and when it occurs, notifying potential citizen rescuers and providing automated external defibrillators at the scene hold the promise of improving survival after OHCA. Improved implementation of the chain of survival can save thousands of lives each year.
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Affiliation(s)
- David D Berg
- Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Bentley J Bobrow
- Department of Emergency Medicine, College of Medicine, University of Arizona, Tucson, AZ, USA
| | - Robert A Berg
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
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Chien CY, Chien WC, Tsai LH, Tsai SL, Chen CB, Seak CJ, Chou YS, Ma M, Weng YM, Ng CJ, Lin CY, Tzeng IS, Lin CC, Huang CH. Impact of the caller’s emotional state and cooperation on out-of-hospital cardiac arrest recognition and dispatcher-assisted cardiopulmonary resuscitation. Emerg Med J 2019; 36:595-600. [PMID: 31439715 DOI: 10.1136/emermed-2018-208353] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 07/24/2019] [Accepted: 08/02/2019] [Indexed: 11/04/2022]
Abstract
ObjectiveThis study determined the impact of the caller’s emotional state and cooperation on out-of-hospital cardiac arrest (OHCA) recognition and dispatcher-assisted cardiopulmonary resuscitation (DA-CPR) performance metrics.MethodsThis was a retrospective study using data from November 2015 to October 2016 from the emergency medical service dispatching centre in northern Taiwan. Audio recordings of callers contacting the centre regarding adult patients with non-traumatic OHCA were reviewed. The reviewers assigned an emotional content and cooperation score (ECCS) to the callers. ECCS 1–3 callers were graded as cooperative and ECCS 4–5 callers as uncooperative and highly emotional. The relation between ECCS and OHCA recognition, time to key events and DA-CPR delivery were investigated.ResultsOf the 367 cases, 336 (91.6%) callers were assigned ECCS 1–3 with a good inter-rater reliability (k=0.63). Dispatchers recognised OHCA in 251 (68.4%) cases. Compared with callers with ECCS 1, callers with ECCS 2 and 3 were more likely to give unambiguous responses about the patient’s breathing status (adjusted OR (AOR)=2.6, 95% CI 1.1 to 6.4), leading to a significantly higher rate of OHCA recognition (AOR=2.3, 95% CI 1.1 to 5.0). Thirty-one callers were rated uncooperative (ECCS 4–5) but had shorter median times to OHCA recognition and chest compression (29 and 122 s, respectively) compared with the cooperative caller group (38 and 170 s, respectively). Nevertheless, those with ECCS 4–5 had a significantly lower DA-CPR delivery rate (54.2% vs 85.9%) due to ‘caller refused’ or ‘overly distraught’ factors.ConclusionsThe caller’s high emotional state is not a barrier to OHCA recognition by dispatchers but may prevent delivery of DA-CPR instruction. However, DA-CPR instruction followed by first chest compression is possible despite the caller’s emotional state if dispatchers are able to skilfully reassure the emotional callers.
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Abstract
Out-of-hospital cardiac arrest is a leading cause of death worldwide. Rapid diagnosis and initiation of cardiopulmonary resuscitation (CPR) is the cornerstone of therapy for victims of cardiac arrest. Yet a significant fraction of cardiac arrest victims have no chance of survival because they experience an unwitnessed event, often in the privacy of their own homes. An under-appreciated diagnostic element of cardiac arrest is the presence of agonal breathing, an audible biomarker and brainstem reflex that arises in the setting of severe hypoxia. Here, we demonstrate that a support vector machine (SVM) can classify agonal breathing instances in real-time within a bedroom environment. Using real-world labeled 9-1-1 audio of cardiac arrests, we train the SVM to accurately classify agonal breathing instances. We obtain an area under the curve (AUC) of 0.9993 ± 0.0003 and an operating point with an overall sensitivity and specificity of 97.24% (95% CI: 96.86–97.61%) and 99.51% (95% CI: 99.35–99.67%). We achieve a false positive rate between 0 and 0.14% over 82 h (117,985 audio segments) of polysomnographic sleep lab data that includes snoring, hypopnea, central, and obstructive sleep apnea events. We also evaluate our classifier in home sleep environments: the false positive rate was 0–0.22% over 164 h (236,666 audio segments) of sleep data collected across 35 different bedroom environments. We prototype our proof-of-concept contactless system using commodity smart devices (Amazon Echo and Apple iPhone) and demonstrate its effectiveness in identifying cardiac arrest-associated agonal breathing instances played over the air.
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27
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Lee CA, Kim GW, Kim YJ, Moon HJ, Park YJ, Lee KM, Woo JH, Jeong WJ, Choi IK, Choi HJ, Choi HJ. The effects of cardiac arrest recognition by dispatcher on Smart Advanced Life Support. HONG KONG J EMERG ME 2019. [DOI: 10.1177/1024907919844867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Objectives: The purpose of this study was to analyze the effect of cardiac arrest recognition by emergency medical dispatch on the pre-hospital advanced cardiac life support and to investigate the outcome of out-of-hospital cardiac arrest. Method: This study was conducted to evaluate the out-of-hospital cardiac arrest patients over 18 years of age, excluding trauma and poisoning patients, from 1 August 2015 to 31 July 2016. We investigated whether it was a cardiac-arrest recognition at dispatch. We compared the pre-hospital return of spontaneous circulation, the rate of survival admission and discharge, good neurological outcome, and also analyzed the time of securing vein, time of first epinephrine administration, and arrival time of paramedics. Results: A total of 3695 out-of-hospital cardiac arrest patients occurred during the study period, and 1468 patients were included in the study. Resuscitation rate by caller was significantly higher in the recognition group. The arrival interval between the first and second emergency service unit was shorter as 5.1 min on average, and the connection rate of paramedics and physicians before the arrival was 32.3%, which was significantly higher than that of the unrecognized group. The mean time required to first epinephrine administration was 13.1 min, which was significantly faster in the recognition group. However, there was no statistically significant difference between the two groups in patients with good neurological outcome, and rather the rate of return of spontaneous circulation and survival discharge was significantly higher in the non-recognition group. Conclusion: Although the recognition of cardiac arrest at dispatch does not directly affect survival rate and good neurological outcome, the activation of pre-hospital advanced cardiac life support and the shortening the time of epinephrine administration can increase pre-hospital return of spontaneous circulation. Therefore, effort to increase recognition by dispatcher is needed.
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Affiliation(s)
- Choung Ah Lee
- Department of Emergency Medicine, College of Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea
| | - Gi Woon Kim
- Department of Emergency Medicine, College of Medicine, Soon Chun Hyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Yu Jin Kim
- Department of Emergency Medicine, College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Hyung Jun Moon
- Department of Emergency Medicine, College of Medicine, Soon Chun Hyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - Yong Jin Park
- Department of Emergency Medicine, College of Medicine, Chosun University Hospital, Gwangju, Republic of Korea
| | - Kyoung Mi Lee
- Department of Emergency Medicine, Myongji Hospital, Goyang, Republic of Korea
| | - Jae Hyug Woo
- Department of Emergency Medicine, College of Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Won Jung Jeong
- Department of Emergency Medicine, College of Medicine, The Catholic University of Korea St. Vincent’s Hospital, Suwon, Republic of Korea
| | - Il Kug Choi
- Department of Emergency Medicine, Cheonan Chungmu Hospital, Cheonan, Republic of Korea
| | - Han Joo Choi
- Department of Emergency Medicine, College of Medicine, Dankook University Hospital, Cheonan, Republic of Korea
| | - Hyuk Joong Choi
- Department of Emergency Medicine, College of Medicine, Hanyang University Guri Hospital, Guri, Republic of Korea
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Mathiesen WT, Birkenes TS, Lund H, Ushakova A, Søreide E, Bjørshol CA. Public knowledge and expectations about dispatcher assistance in out-of-hospital cardiac arrest. J Adv Nurs 2018; 75:783-792. [PMID: 30375018 DOI: 10.1111/jan.13886] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 08/22/2018] [Accepted: 10/02/2018] [Indexed: 11/30/2022]
Abstract
AIM To assess the factors associated with the knowledge and expectations among the general public about dispatcher assistance in out-of-hospital cardiac arrest incidents. BACKGROUND In medical dispatch centres, emergency calls are frequently operated by specially trained nurses as dispatchers. In cardiac arrest incidents, efficient communication between the dispatcher and the caller is vital for prompt recognition and treatment of the cardiac arrest. DESIGN A cross-sectional observational survey containing six questions and seven demographic items. METHOD From January-June 2017 we conducted standardized interviews among 500 members of the general public in Norway. In addition to explorative statistical methods, we used multivariate logistic analysis. RESULTS Most participants expected cardiopulmonary resuscitation instructions, while few expected "help in deciding what to do." More than half regarded the bystanders present to be responsible for the decision to initiate cardiopulmonary resuscitation. Most participants were able to give the correct emergency medical telephone number. The majority knew that the emergency call would not be terminated until the ambulance arrived at the scene. However, only one-third knew that the emergency telephone number operator was a trained nurse. CONCLUSION The public expect cardiopulmonary resuscitation instructions from the emergency medical dispatcher. However, the majority assume it is the responsibility of the bystanders to make the decision to initiate cardiopulmonary resuscitation or not. Based on these findings, cardiopulmonary resuscitation training initiatives and public campaigns should focus more on the role of the emergency medical dispatcher as the team leader of the first resuscitation team in cardiac arrest incidents.
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Affiliation(s)
- Wenche T Mathiesen
- Critical Care and Anaesthesiology Research Group, Stavanger University Hospital, Stavanger, Norway.,Department of Research and Development, Norwegian Air Ambulance Foundation, Drøbak, Norway
| | | | - Helene Lund
- Emergency Medical Communication Centre, Division of Prehospital Medicine, Stavanger University Hospital, Stavanger, Norway
| | - Anastasia Ushakova
- Department of Research, Stavanger University Hospital, Stavanger, Norway
| | - Eldar Søreide
- Critical Care and Anaesthesiology Research Group, Stavanger University Hospital, Stavanger, Norway.,Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Conrad A Bjørshol
- Department of Clinical Medicine, University of Bergen, Bergen, Norway.,Department of Anesthesiology and Intensive Care, Stavanger University Hospital, Stavanger, Norway.,The Regional Centre for Emergency Medical Research and Development (RAKOS), Clinic of Prehospital Medicine, Stavanger University Hospital, Stavanger, Norway
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29
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Riou M, Ball S, Whiteside A, Bray J, Perkins GD, Smith K, O'Halloran KL, Fatovich DM, Inoue M, Bailey P, Cameron P, Brink D, Finn J. 'We're going to do CPR': A linguistic study of the words used to initiate dispatcher-assisted CPR and their association with caller agreement. Resuscitation 2018; 133:95-100. [PMID: 30316951 DOI: 10.1016/j.resuscitation.2018.10.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 09/27/2018] [Accepted: 10/11/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND In emergency ambulance calls for out-of-hospital cardiac arrest (OHCA), dispatcher-assisted cardiopulmonary resuscitation (CPR) plays a crucial role in patient survival. We examined whether the language used by dispatchers to initiate CPR had an impact on callers' agreement to perform CPR. METHODS We analysed 424 emergency calls relating to cases of paramedic-confirmed OHCA where OHCA was recognised by the dispatcher, the caller was with the patient, and resuscitation was attempted by paramedics. We investigated the linguistic choices used by dispatchers to initiate CPR, and the impact of those choices on caller agreement to perform CPR. RESULTS Overall, CPR occurred in 85% of calls. Caller agreement was low (43%) when dispatchers used terms of willingness ("do you want to do CPR?"). Caller agreement was high (97% and 84% respectively) when dispatchers talked about CPR in terms of futurity ("we are going to do CPR") or obligation ("we need to do CPR"). In 38% (25/66) of calls where the caller initially declined CPR, the dispatcher eventually secured their agreement by making several attempts at initiating CPR. CONCLUSION There is potential for increased agreement to perform CPR if dispatchers are trained to initiate CPR with words of futurity and/or obligation.
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Affiliation(s)
- Marine Riou
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA, 6102, Australia.
| | - Stephen Ball
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA, 6102, Australia
| | | | - Janet Bray
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA, 6102, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Victoria, 3004, Australia
| | - Gavin D Perkins
- Warwick Clinical Trials Unit and Heart of England NHS Foundation Trust, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - Karen Smith
- Department of Epidemiology and Preventive Medicine, Monash University, Victoria, 3004, Australia; Emergency Medicine, The University of Western Australia, Crawley, WA, 6009, Australia; Department of Community Emergency Health and Paramedic Practice, Monash University, Victoria, 3004, Australia; Ambulance Victoria, Blackburn North, Victoria, 3130, Australia
| | - Kay L O'Halloran
- School of Education, Curtin University, Bentley, WA, 6102, Australia
| | - Daniel M Fatovich
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA, 6102, Australia; Emergency Medicine, The University of Western Australia, Crawley, WA, 6009, Australia; Emergency Medicine, Royal Perth Hospital, Perth, WA, 6001, Australia; Centre for Clinical Research in Emergency Medicine, Harry Perkins Institute of Medical Research, Royal Perth Hospital, WA, 6847, Australia
| | - Madoka Inoue
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA, 6102, Australia
| | - Paul Bailey
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA, 6102, Australia; St John Ambulance (WA), Belmont, WA, 6104, Australia
| | - Peter Cameron
- Department of Epidemiology and Preventive Medicine, Monash University, Victoria, 3004, Australia
| | - Deon Brink
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA, 6102, Australia; St John Ambulance (WA), Belmont, WA, 6104, Australia
| | - Judith Finn
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA, 6102, Australia; St John Ambulance (WA), Belmont, WA, 6104, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Victoria, 3004, Australia; Emergency Medicine, The University of Western Australia, Crawley, WA, 6009, Australia
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30
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Chang I, Lee SC, Shin SD, Song KJ, Ro YS, Park JH, Kong SY. Effects of dispatcher-assisted bystander cardiopulmonary resuscitation on neurological recovery in paediatric patients with out-of-hospital cardiac arrest based on the pre-hospital emergency medical service response time interval. Resuscitation 2018; 130:49-56. [DOI: 10.1016/j.resuscitation.2018.06.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 06/15/2018] [Accepted: 06/25/2018] [Indexed: 12/26/2022]
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Abstract
AbstractBackgroundSurvival rates following out-of-hospital cardiac arrest (OHCA) increase two to three times when cardiopulmonary resuscitation (CPR) is started by bystanders, as compared to starting CPR when Emergency Medical Services (EMS) arrives. Municipalities that have implemented dispatcher-assisted bystander CPR programs have seen increased rates of bystander CPR. Cardiopulmonary resuscitation instructions are given for victims of all ages, but it is unknown if offering instructions results in similar rates of EMS-documented bystander CPR across the age continuum in these municipalities.ObjectivesThe aim of this study was to determine if there is a difference in EMS-documented bystander CPR rates based on the age group of the OHCA victim when dispatcher CPR instructions are available in the community.MethodsThis was a three-year, retrospective chart review of OHCA patients in two municipalities within a single county that provided dispatcher-assisted CPR instructions. Bystander CPR and patient age were determined based on EMS documentation. Age was stratified into three groups: child (0-12 years), adult (13-54 years), and geriatric (≥55 years). Chi square was used to compare the rate of bystander CPR in each age group.ResultsDuring the study period, 1,993 patients were identified as being in OHCA at the time of EMS arrival. The overall bystander CPR rate was 10%. The highest rate of bystander CPR was in the child age group (19%). The lowest rate of bystander CPR was in the geriatric age group (9%). There was a statistically significant difference between age groups (P≤.01).ConclusionsThe rate of EMS-documented bystander CPR was low, even though these municipalities provided dispatcher-assisted CPR instructions. The highest rates of bystander CPR were observed in children (0-12 years). Future investigations should determine why this occurs and if there are opportunities to modify dispatcher coaching based on patient age so that bystander CPR rates improve.WeinmeisterKL, LernerEB, GuseCE, AteyyahKA, PirralloRG. Dispatcher CPR instructions across the age continuum. Prehosp Disaster Med. 2018;33(3):342–345.
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Abstract
Sudden out-of-hospital cardiac arrest is the most time-critical medical emergency. In the second paper of this Series on out-of-hospital cardiac arrest, we considered important issues in the prehospital management of cardiac arrest. Successful resuscitation relies on a strong chain of survival with the community, dispatch centre, ambulance, and hospital working together. Early cardiopulmonary resuscitation and defibrillation has the greatest impact on survival. If the community response does not restart the heart, resuscitation is continued by emergency medical services' staff. However, the best approaches for airway management and the effectiveness of currently used drug treatments are uncertain. Prognostic factors and rules for termination of resuscitation could guide the duration of a resuscitation attempt and decision to transport to hospital. If return of spontaneous circulation is achieved, the focus of treatment shifts to stabilisation, restoration of normal physiological parameters, and transportation to hospital for ongoing care.
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Affiliation(s)
- Marcus Eng Hock Ong
- Department of Emergency Medicine, Singapore General Hospital, Singapore; Health Services and Systems Research, Duke-NUS Medical School, Singapore.
| | - Gavin D Perkins
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK; Heart of England NHS Foundation Trust, Birmingham, UK
| | - Alain Cariou
- Medical Intensive Care Unit, AP-HP, Cochin Hospital, Paris, France; Paris Descartes University, Paris, France
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33
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Kurz MC. Telephone CPR: Adopting the standard of care, Just-in-time. Resuscitation 2018; 122:A6-A7. [DOI: 10.1016/j.resuscitation.2017.11.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 11/15/2017] [Indexed: 11/16/2022]
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Riou M, Ball S, Williams TA, Whiteside A, Cameron P, Fatovich DM, Perkins GD, Smith K, Bray J, Inoue M, O'Halloran KL, Bailey P, Brink D, Finn J. 'She's sort of breathing': What linguistic factors determine call-taker recognition of agonal breathing in emergency calls for cardiac arrest? Resuscitation 2017; 122:92-98. [PMID: 29183831 DOI: 10.1016/j.resuscitation.2017.11.058] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 10/27/2017] [Accepted: 11/24/2017] [Indexed: 11/24/2022]
Abstract
BACKGROUND In emergency ambulance calls, agonal breathing remains a barrier to the recognition of out-of-hospital cardiac arrest (OHCA), initiation of cardiopulmonary resuscitation, and rapid dispatch. We aimed to explore whether the language used by callers to describe breathing had an impact on call-taker recognition of agonal breathing and hence cardiac arrest. METHODS We analysed 176 calls of paramedic-confirmed OHCA, stratified by recognition of OHCA (89 cases recognised, 87 cases not recognised). We investigated the linguistic features of callers' response to the question "is s/he breathing?" and examined the impact on subsequent coding by call-takers. RESULTS Among all cases (recognised and non-recognised), 64% (113/176) of callers said that the patients were breathing (yes-answers). We identified two categories of yes-answers: 56% (63/113) were plain answers, confirming that the patient was breathing ("he's breathing"); and 44% (50/113) were qualified answers, containing additional information ("yes but gasping"). Qualified yes-answers were suggestive of agonal breathing. Yet these answers were often not pursued and most (32/50) of these calls were not recognised as OHCA at dispatch. CONCLUSION There is potential for improved recognition of agonal breathing if call-takers are trained to be alert to any qualification following a confirmation that the patient is breathing.
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Affiliation(s)
- Marine Riou
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia.
| | - Stephen Ball
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia
| | - Teresa A Williams
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia; St John Ambulance (WA), Belmont, WA 6104, Australia; Emergency Medicine, The University of Western Australia, Crawley, WA 6009, Australia; Emergency Medicine, Royal Perth Hospital, Perth, WA 6001, Australia
| | | | - Peter Cameron
- Department of Epidemiology and Preventive Medicine, Monash University, Victoria 3004, Australia
| | - Daniel M Fatovich
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia; Emergency Medicine, The University of Western Australia, Crawley, WA 6009, Australia; Emergency Medicine, Royal Perth Hospital, Perth, WA 6001, Australia; Centre for Clinical Research in Emergency Medicine, Harry Perkins Institute of Medical Research, Royal Perth Hospital, WA 6847, Australia
| | - Gavin D Perkins
- Warwick Clinical Trials Unit and Heart of England NHS Foundation Trust, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - Karen Smith
- Emergency Medicine, The University of Western Australia, Crawley, WA 6009, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Victoria 3004, Australia; Department of Community Emergency Health and Paramedic Practice, Monash University, Victoria 3004, Australia; Ambulance Victoria, Blackburn North, Victoria 3130, Australia
| | - Janet Bray
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Victoria 3004, Australia
| | - Madoka Inoue
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia
| | - Kay L O'Halloran
- School of Education, Curtin University, Bentley, WA 6102, Australia
| | - Paul Bailey
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia; St John Ambulance (WA), Belmont, WA 6104, Australia
| | - Deon Brink
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia; St John Ambulance (WA), Belmont, WA 6104, Australia
| | - Judith Finn
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, WA 6102, Australia; St John Ambulance (WA), Belmont, WA 6104, Australia; Emergency Medicine, The University of Western Australia, Crawley, WA 6009, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Victoria 3004, Australia
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Kudenchuk PJ. No, No, GO! A call to arms (and hands) for cardiac arrest. Heart Rhythm 2017; 14:1735-1736. [PMID: 28939207 DOI: 10.1016/j.hrthm.2017.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Indexed: 10/18/2022]
Affiliation(s)
- Peter J Kudenchuk
- Division of Cardiology/Arrhythmia Services, University of Washington, Seattle, Washington; King County Emergency Medical Services, Public Health - Seattle & King County, Seattle, Washington.
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36
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Fukushima H, Panczyk M, Hu C, Dameff C, Chikani V, Vadeboncoeur T, Spaite DW, Bobrow BJ. Description of Abnormal Breathing Is Associated With Improved Outcomes and Delayed Telephone Cardiopulmonary Resuscitation Instructions. J Am Heart Assoc 2017; 6:JAHA.116.005058. [PMID: 28851728 PMCID: PMC5634247 DOI: 10.1161/jaha.116.005058] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background Emergency 9‐1‐1 callers use a wide range of terms to describe abnormal breathing in persons with out‐of‐hospital cardiac arrest (OHCA). These breathing descriptors can obstruct the telephone cardiopulmonary resuscitation (CPR) process. Methods and Results We conducted an observational study of emergency call audio recordings linked to confirmed OHCAs in a statewide Utstein‐style database. Breathing descriptors fell into 1 of 8 groups (eg, gasping, snoring). We divided the study population into groups with and without descriptors for abnormal breathing to investigate the impact of these descriptors on patient outcomes and telephone CPR process. Callers used descriptors in 459 of 2411 cases (19.0%) between October 1, 2010, and December 31, 2014. Survival outcome was better when the caller used a breathing descriptor (19.6% versus 8.8%, P<0.0001), with an odds ratio of 1.63 (95% confidence interval, 1.17–2.25). After exclusions, 379 of 459 cases were eligible for process analysis. When callers described abnormal breathing, the rates of telecommunicator OHCA recognition, CPR instruction, and telephone CPR were lower than when callers did not use a breathing descriptor (79.7% versus 93.0%, P<0.0001; 65.4% versus 72.5%, P=0.0078; and 60.2% versus 66.9%, P=0.0123, respectively). The time interval between call receipt and OHCA recognition was longer when the caller used a breathing descriptor (118.5 versus 73.5 seconds, P<0.0001). Conclusions Descriptors of abnormal breathing are associated with improved outcomes but also with delays in the identification of OHCA. Familiarizing telecommunicators with these descriptors may improve the telephone CPR process including OHCA recognition for patients with increased probability of survival.
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Affiliation(s)
- Hidetada Fukushima
- Arizona Department of Health Services, Phoenix, AZ .,Department of Emergency and Critical Care Medicine, Nara Medical University, Nara, Japan.,Arizona Emergency Medicine Research Center, University of Arizona College of Medicine, Phoenix, AZ
| | | | - Chengcheng Hu
- Department or Epidemiology and Biostatistics, University of Arizona Mel and Enid Zuckerman College of Public Health, Tucson, AZ
| | - Christian Dameff
- Arizona Emergency Medicine Research Center, University of Arizona College of Medicine, Phoenix, AZ
| | | | | | - Daniel W Spaite
- Arizona Emergency Medicine Research Center, University of Arizona College of Medicine, Phoenix, AZ
| | - Bentley J Bobrow
- Arizona Department of Health Services, Phoenix, AZ.,Arizona Emergency Medicine Research Center, University of Arizona College of Medicine, Phoenix, AZ.,Department of Emergency Medicine, University of Arizona College of Medicine, Phoenix, AZ
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Riou M, Ball S, Williams TA, Whiteside A, O’Halloran KL, Bray J, Perkins GD, Cameron P, Fatovich DM, Inoue M, Bailey P, Brink D, Smith K, Della P, Finn J. The linguistic and interactional factors impacting recognition and dispatch in emergency calls for out-of-hospital cardiac arrest: a mixed-method linguistic analysis study protocol. BMJ Open 2017; 7:e016510. [PMID: 28694349 PMCID: PMC5541602 DOI: 10.1136/bmjopen-2017-016510] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION Emergency telephone calls placed by bystanders are crucial to the recognition of out-of-hospital cardiac arrest (OHCA), fast ambulance dispatch and initiation of early basic life support. Clear and efficient communication between caller and call-taker is essential to this time-critical emergency, yet few studies have investigated the impact that linguistic factors may have on the nature of the interaction and the resulting trajectory of the call. This research aims to provide a better understanding of communication factors impacting on the accuracy and timeliness of ambulance dispatch. METHODS AND ANALYSIS A dataset of OHCA calls and their corresponding metadata will be analysed from an interdisciplinary perspective, combining linguistic analysis and health services research. The calls will be transcribed and coded for linguistic and interactional variables and then used to answer a series of research questions about the recognition of OHCA and the delivery of basic life-support instructions to bystanders. Linguistic analysis of calls will provide a deeper understanding of the interactional dynamics between caller and call-taker which may affect recognition and dispatch for OHCA. Findings from this research will translate into recommendations for modifications of the protocols for ambulance dispatch and provide directions for further research. ETHICS AND DISSEMINATION The study has been approved by the Curtin University Human Research Ethics Committee (HR128/2013) and the St John Ambulance Western Australia Research Advisory Group. Findings will be published in peer-reviewed journals and communicated to key audiences, including ambulance dispatch professionals.
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Affiliation(s)
- Marine Riou
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, Australia
| | - Stephen Ball
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, Australia
| | - Teresa A Williams
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, Australia
- St John Ambulance (WA), Belmont, Australia
| | | | | | - Janet Bray
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Victoria, Australia
| | - Gavin D Perkins
- Out of Hospital Cardiac Arrest Outcomes, Warwick Clinical Trials Unit, University of Warwick, Coventry, UK
| | - Peter Cameron
- Department of Epidemiology and Preventive Medicine, Monash University, Victoria, Australia
| | - Daniel M Fatovich
- Emergency Medicine, The University of Western Australia, Crawley, Australia
- Emergency Medicine, Royal Perth Hospital, Perth, Australia
| | - Madoka Inoue
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, Australia
| | - Paul Bailey
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, Australia
- St John Ambulance (WA), Belmont, Australia
| | - Deon Brink
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, Australia
- St John Ambulance (WA), Belmont, Australia
| | - Karen Smith
- Department of Epidemiology and Preventive Medicine, Monash University, Victoria, Australia
- Ambulance Victoria, Blackburn North, Victoria, Australia
| | - Phillip Della
- School of Nursing and Midwifery, Curtin University, Bentley, Australia
| | - Judith Finn
- Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), School of Nursing, Midwifery and Paramedicine, Curtin University, Bentley, Australia
- St John Ambulance (WA), Belmont, Australia
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Perkins G, Handley A, Koster R, Castrén M, Smyth M, Olasveengen T, Monsieurs K, Raffay V, Gräsner JT, Wenzel V, Ristagno G, Soar J. [Adult basic life support and automated external defibrillation.]. Notf Rett Med 2017; 20:3-24. [PMID: 32214897 PMCID: PMC7087749 DOI: 10.1007/s10049-017-0328-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- G.D. Perkins
- Warwick Medical School, University of Warwick, Coventry, UK
- Critical Care Unit, Heart of England NHS Foundation Trust, Birmingham, UK
| | | | - R.W. Koster
- Department of Cardiology, Academic Medical Center, Amsterdam, Niederlande
| | - M. Castrén
- Department of Emergency Medicine and Services, Helsinki University Hospital and Helsinki University, Helsinki, Finnland
| | - M.A. Smyth
- Warwick Medical School, University of Warwick, Coventry, UK
- West Midlands Ambulance Service NHS Foundation Trust, Dudley, UK
| | - T. Olasveengen
- Norwegian National Advisory Unit on Prehospital Emergency Medicine and Department of Anesthesiology, Oslo University Hospital, Oslo, Norwegen
| | - K.G. Monsieurs
- Emergency Medicine, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgien
- Faculty of Medicine and Health Sciences, University of Ghent, Ghent, Belgien
| | - V. Raffay
- Municipal Institute for Emergency Medicine Novi Sad, Novi Sad, Serbien
| | - J.-T. Gräsner
- Department of Anaesthesia and Intensive Care Medicine, University Medical Center Schleswig-Holstein, Kiel, Deutschland
| | - V. Wenzel
- Department of Anesthesiology and Critical Care Medicine, Medical University of Innsbruck, Innsbruck, Österreich
| | - G. Ristagno
- Department of Cardiovascular Research, IRCCS-Istituto di Ricerche Farmacologiche „Mario Negri“, Milan, Italien
| | - J. Soar
- Anaesthesia and Intensive Care Medicine, Southmead Hospital, Bristol, UK
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Bystander capability to activate speaker function for continuous dispatcher assisted CPR in case of suspected cardiac arrest. Resuscitation 2017; 115:52-55. [DOI: 10.1016/j.resuscitation.2017.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 03/15/2017] [Accepted: 04/02/2017] [Indexed: 11/19/2022]
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40
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Improving telephone CPR – The devil is in the details. Resuscitation 2017; 115:A2-A3. [DOI: 10.1016/j.resuscitation.2017.04.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 04/13/2017] [Indexed: 11/20/2022]
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Barriers to patient positioning for telephone cardiopulmonary resuscitation in out-of-hospital cardiac arrest. Resuscitation 2017; 115:163-168. [PMID: 28385638 DOI: 10.1016/j.resuscitation.2017.03.034] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 03/22/2017] [Accepted: 03/27/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND 9-1-1 callers often face barriers preventing them from starting Telephone CPR (TCPR). The most common problem is getting patients to a hard, flat surface. This study describes barriers callers report when trying to move patients to a hard, flat surface and assesses conditions associated with overcoming these barriers. METHODS We audited 2396 out-of-hospital cardiac arrest (OHCA) audio recordings. A barrier was defined as any statement by the caller that the rescuer could not move the patient to the ground and into a supine position. Barriers were recorded and TCPR process metrics compared across the barrier and non-barrier groups. RESULTS There were 802 OHCAs in the study group. Roughly 26% had a barrier. Telecommunicators were less likely to start TCPR instructions in the barrier group than in the non-barrier group (OR: 0.63, 95% CI: 0.45-0.88; p=0.007). Telecommunicator-directed bystander chest compressions were more than twice as likely to start in the non-barrier group (OR: 2.2, 95% CI: 1.6-3.2; p<0.001). Median time to first compression was longer in the barrier group (276s vs 171s; p<0.001). Rescuers were 3.7 times more likely to overcome a barrier and start compressions (OR: 3.7, 95% CI: 2.0-6.8; p<0.001) when multiple bystanders were present. CONCLUSION Inability to move patients to a hard, flat surface is associated with a reduced rate of TCPR and increased time to first compression. Assessing the conditions under which such barriers are overcome is important for telecommunicator training and can help improve rates and timeliness of TCPR.
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Van Aken H, Hessler M, Brinkrolf P, Bohn A, Gottschalk A. Resuscitation Training for Schoolchildren Worldwide. Anesth Analg 2017; 124:1354-1356. [DOI: 10.1213/ane.0000000000001745] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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43
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Deakin CD, England S, Diffey D. Ambulance telephone triage using 'NHS Pathways' to identify adult cardiac arrest. Heart 2016; 103:738-744. [PMID: 28011758 DOI: 10.1136/heartjnl-2016-310651] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 11/26/2016] [Accepted: 11/29/2016] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND UK ambulance services are called to 30 000 cardiac arrests (CAs) annually where resuscitation is attempted. Correct identification by the ambulance service trebles survival by facilitating bystander-cardiopulmonary resuscitation (CPR) and immediate ambulance dispatch. Identification of CA by telephone is challenging and involves algorithms to identify key features. 'NHS Pathways' is now used for triage by six of 12 UK ambulance services, covering a population of 20 million. With the significant improvements in survival when CA is accurately identified, it is vital that 'NHS Pathways' is able to identify CA correctly. METHODS All '999' emergency calls to South Central Ambulance Service (SCAS) over a 12-month period screened by NHS Pathways v9.04 were identified. All actual or presumed CAs identified by the emergency call taker were cross-referenced with the ambulance crew's Patient Report Form to identify all confirmed CAs. RESULTS A total of 469 400 emergency (999) calls were received by SCAS. Of the 3119 CA identified by ambulance crew, 753 were not initially classified as CA by NHS Pathways (24.1%). Overall, sensitivity=0.759 (95% CI 0.743 to 0.773); specificity=0.986 (95% CI 0.9858 to 0.98647); and positive predictive value=26.80% (95% CI 25.88 to 27.73%). CONCLUSIONS NHS Pathways accurately identifies 75.9% of adult CAs. The remainder represents approximately 7500 treatable CAs in the UK annually where the diagnosis is missed, with significant implications for patient outcome. Further work is required to improve this first link in the chain of survival.
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Affiliation(s)
- Charles D Deakin
- NIHR Southampton Respiratory Biomedical Research Unit, University Hospital Southampton, Southampton, UK.,South Central Ambulance Service NHS Foundation Trust, Otterbourne, UK
| | - Simon England
- South Central Ambulance Service NHS Foundation Trust, Otterbourne, UK
| | - Debbie Diffey
- South Central Ambulance Service NHS Foundation Trust, Otterbourne, UK
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Nichol G, Cobb LA, Yin L, Maynard C, Olsufka M, Larsen J, McCoy AM, Sayre MR. Briefer activation time is associated with better outcomes after out-of-hospital cardiac arrest. Resuscitation 2016; 107:139-44. [DOI: 10.1016/j.resuscitation.2016.06.040] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 06/22/2016] [Accepted: 06/30/2016] [Indexed: 10/21/2022]
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45
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Rumsfeld JS, Brooks SC, Aufderheide TP, Leary M, Bradley SM, Nkonde-Price C, Schwamm LH, Jessup M, Ferrer JME, Merchant RM. Use of Mobile Devices, Social Media, and Crowdsourcing as Digital Strategies to Improve Emergency Cardiovascular Care. Circulation 2016; 134:e87-e108. [DOI: 10.1161/cir.0000000000000428] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Maeda T, Yamashita A, Myojo Y, Wato Y, Inaba H. Augmented survival of out-of-hospital cardiac arrest victims with the use of mobile phones for emergency communication under the DA-CPR protocol getting information from callers beside the victim. Resuscitation 2016; 107:80-7. [PMID: 27562948 DOI: 10.1016/j.resuscitation.2016.08.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 08/08/2016] [Accepted: 08/08/2016] [Indexed: 11/30/2022]
Abstract
PURPOSE To investigate the impacts of emergency calls made using mobile phones on the quality of dispatcher-assisted cardiopulmonary resuscitation (DA-CPR) and survival from out-of-hospital cardiac arrests (OHCAs) that were not witnessed by emergency medical service (EMS). METHODS In this prospective study, we collected data for 2530 DA-CPR-attempted medical emergency cases (517 using mobile phones and 2013 using landline phones) and 2980 non-EMS-witnessed OHCAs (600 using mobile phones and 2380 using landline phones). Time factors and quality of DA-CPR, backgrounds of callers and outcomes of OHCAs were compared between mobile and landline phone groups. RESULTS Emergency calls are much more frequently placed beside the arrest victim in mobile phone group (52.7% vs. 17.2%). The positive predictive value and acceptance rate of DA-CPR in mobile phone group (84.7% and 80.6%, respectively) were significantly higher than those in landline group (79.2% and 70.9%). The proportion of good-quality bystander CPR in mobile phone group was significantly higher than that in landline group (53.5% vs. 45.0%). When analysed for all non-EMS-witnessed OHCAs, rates of 1-month survival and 1-year neurologically favourable survival in mobile phone group (7.8% and 3.5%, respectively) were higher than those in landline phone group (4.6% and 1.9%; p<0.05). Multiple logistic regression analysis, including other backgrounds, revealed that mobile phone calls were associated with increased 1-month survival in the subgroup of OHCAs receiving bystander CPR (adjusted odds ratio, 1.84; 95% CI, 1.15-2.92). CONCLUSION Emergency calls made using mobile phones are likely to augment the survival from OHCAs by improving DA-CPR.
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Affiliation(s)
- Tetsuo Maeda
- Department of Circulatory Emergency and Resuscitation Science, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan.
| | - Akira Yamashita
- Department of Circulatory Emergency and Resuscitation Science, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan; Department of Cardiology, Noto General Hospital, Nanao, Ishikawa, Japan.
| | - Yasuhiro Myojo
- Emergency Medical Centre, Ishikawa Prefectural Hospital, Kanazawa, Ishikawa, Japan.
| | - Yukihiro Wato
- Department Emergency Medicine, Kanazawa Medical University, Uchinada, Ishikawa, Japan.
| | - Hideo Inaba
- Department of Circulatory Emergency and Resuscitation Science, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan.
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Fukushima H, Panczyk M, Spaite DW, Chikani V, Dameff C, Hu C, Birkenes TS, Myklebust H, Sutter J, Langlais B, Wu Z, Bobrow BJ. Barriers to telephone cardiopulmonary resuscitation in public and residential locations. Resuscitation 2016; 109:116-120. [PMID: 27521469 DOI: 10.1016/j.resuscitation.2016.07.241] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 07/24/2016] [Accepted: 07/29/2016] [Indexed: 11/25/2022]
Abstract
AIM Emergency medical telecommunicators can play a key role in improving outcomes from out-of-hospital cardiac arrest (OHCA) by providing instructions for cardiopulmonary resuscitation (CPR) to callers. Telecommunicators, however, frequently encounter barriers that obstruct the Telephone CPR (TCPR) process. The nature and frequency of these barriers in public and residential locations have not been well investigated. The aim of this study is to identify the barriers to TCPR in public and residential locations. METHODS We conducted a retrospective study of audio recordings of EMS-confirmed OHCAs from eight regional 9-1-1 dispatch centers between January 2012 and December 2013. RESULTS We reviewed 1850 eligible cases (public location OHCAs: N=223 and residential location OHCAs: N=1627). Telecommunicators less frequently encountered barriers such as inability to calm callers in public than in residential locations (2.1% vs 8.5%, p=0.002) or inability to place victims on a hard flat surface (13.9% vs 25.4%, p<0.001). However, the barrier where callers were not with patients was more frequently observed in public than in residential locations (11.8% vs 2.7%, p<0.001). CONCLUSIONS This study revealed that barriers to TCPR are distributed differently across public and residential locations. Understanding these differences can aid in the development of strategies to enhance bystander CPR and improve overall patient outcomes.
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Affiliation(s)
- Hidetada Fukushima
- Arizona Department of Health Services, Bureau of EMS and Trauma System, 150 North 18th Avenue, Phoenix, AZ 85007, United States; University of Arizona, Department of Emergency Medicine, Arizona Emergency Medicine Research Center, 714 East Van Buren St, Phoenix, AZ 85006, United States; Department of Emergency and Critical Care Medicine, Nara Medical University, Shijo-cho, 840, Kashihara City, Nara 6348522, Japan.
| | - Micah Panczyk
- Arizona Department of Health Services, Bureau of EMS and Trauma System, 150 North 18th Avenue, Phoenix, AZ 85007, United States
| | - Daniel W Spaite
- University of Arizona, Department of Emergency Medicine, Arizona Emergency Medicine Research Center, 714 East Van Buren St, Phoenix, AZ 85006, United States
| | - Vatsal Chikani
- Arizona Department of Health Services, Bureau of EMS and Trauma System, 150 North 18th Avenue, Phoenix, AZ 85007, United States
| | - Christian Dameff
- University of Arizona College of Medicine Phoenix, 550 East Van Buren St, Phoenix, AZ 85004, United States; Maricopa Medical Center, 2601 East Roosevelt St, Phoenix, AZ 85008, United States
| | - Chengcheng Hu
- University of Arizona, Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, 1295 North, Martin Avenue, Tucson, AZ 85724, United States
| | - Tonje S Birkenes
- Laerdal Medical AS, Tanke Svilandsgate 30, N-4002 Stavanger, Norway
| | - Helge Myklebust
- Laerdal Medical AS, Tanke Svilandsgate 30, N-4002 Stavanger, Norway
| | - John Sutter
- University of Arizona College of Medicine Phoenix, 550 East Van Buren St, Phoenix, AZ 85004, United States
| | - Blake Langlais
- Arizona State University, School of Mathematical and Statistical Science, University Drive and Mill Avenue, Tempe, AZ 85287, United States
| | - Zhixin Wu
- Arizona Department of Health Services, Bureau of EMS and Trauma System, 150 North 18th Avenue, Phoenix, AZ 85007, United States; University of Arizona, Department of Emergency Medicine, Arizona Emergency Medicine Research Center, 714 East Van Buren St, Phoenix, AZ 85006, United States
| | - Bentley J Bobrow
- Arizona Department of Health Services, Bureau of EMS and Trauma System, 150 North 18th Avenue, Phoenix, AZ 85007, United States; University of Arizona, Department of Emergency Medicine, Arizona Emergency Medicine Research Center, 714 East Van Buren St, Phoenix, AZ 85006, United States; University of Arizona College of Medicine Phoenix, 550 East Van Buren St, Phoenix, AZ 85004, United States
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48
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Ho AFW, Sim ZJ, Shahidah N, Hao Y, Ng YY, Leong BSH, Zarinah S, Teo WKL, Goh GSY, Jaafar H, Ong MEH. Barriers to dispatcher-assisted cardiopulmonary resuscitation in Singapore. Resuscitation 2016; 105:149-55. [PMID: 27288652 DOI: 10.1016/j.resuscitation.2016.05.006] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 03/31/2016] [Accepted: 05/09/2016] [Indexed: 11/18/2022]
Abstract
BACKGROUND Dispatcher-assisted cardiopulmonary resuscitation (DA-CPR) is effective in increasing bystander CPR in out-of-hospital cardiac arrests (OHCA). Singapore has recently implemented a DA-CPR program. We aimed to characterize barriers to commencement of chest compressions by callers in Singapore. METHODS We analyzed dispatch recordings of OHCA cases received by the ambulance call center between July 2012 and March 2015. Audio recordings of poor quality were excluded. Trained reviewers noted the sequential stages of the dispatcher's recognition of CPR, delivering CPR instructions and caller performing CPR. Time taken to reach these milestones was noted. Barriers to chest compressions were identified. RESULTS A total of 4897 OHCA occurred during the study period, overall bystander CPR rate was 45.7%. 1885 dispatch recordings were reviewed with 1157 cases qualified for dispatcher CPR. In 1128 (97.5%) cases, the dispatcher correctly recognized the need for CPR. CPR instructions were delivered in 1056 (91.3%) cases. Of these, 1007 (87.0%) callers performed CPR to instruction. One or more barriers to chest compressions were identified in 430 (37.2%) cases. The commonest barrier identified was "could not move patient" (27%). Cases where barriers were identified were less likely to have the need for CPR recognized by the dispatcher (94.9% vs. 99.0%, p<0.001), CPR instructions given (79.3% vs. 98.3%, p<0.001) and CPR started (67.9% vs. 98.3%, p<0.001), while the time taken to reach each of these stages were significantly longer (p<0.001). CONCLUSION Barriers were present in 37% of cases. They were associated with lower proportion of CPR started and longer delay to CPR.
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Affiliation(s)
- Andrew Fu Wah Ho
- Emergency Medicine Residency, Singapore Health Services, Singapore, Singapore.
| | - Zariel Jiaying Sim
- Barts and the London School of Medicine and Dentistry, Greater London, United Kingdom
| | - Nur Shahidah
- Department of Emergency Medicine, Singapore General Hospital, Singapore, Singapore
| | - Ying Hao
- Division of Medicine, Singapore General Hospital, Singapore, Singapore
| | - Yih Yng Ng
- Medical Department, Singapore Civil Defence Force, Singapore, Singapore
| | - Benjamin S H Leong
- Emergency Medicine Department, National University Hospital, Singapore, Singapore
| | - Siti Zarinah
- Operations Department, Singapore Civil Defence Force, Singapore, Singapore
| | - Winston K L Teo
- Operations Department, Singapore Civil Defence Force, Singapore, Singapore
| | | | - Hamizah Jaafar
- Operations Department, Singapore Civil Defence Force, Singapore, Singapore
| | - Marcus E H Ong
- Department of Emergency Medicine, Singapore General Hospital, Singapore, Singapore; Health Services & Systems Research, Duke-NUS Medical School, Singapore, Singapore
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Kleinman ME, Brennan EE, Goldberger ZD, Swor RA, Terry M, Bobrow BJ, Gazmuri RJ, Travers AH, Rea T. Part 5: Adult Basic Life Support and Cardiopulmonary Resuscitation Quality: 2015 American Heart Association Guidelines Update for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Circulation 2016; 132:S414-35. [PMID: 26472993 DOI: 10.1161/cir.0000000000000259] [Citation(s) in RCA: 610] [Impact Index Per Article: 76.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Travers AH, Perkins GD, Berg RA, Castren M, Considine J, Escalante R, Gazmuri RJ, Koster RW, Lim SH, Nation KJ, Olasveengen TM, Sakamoto T, Sayre MR, Sierra A, Smyth MA, Stanton D, Vaillancourt C. Part 3: Adult Basic Life Support and Automated External Defibrillation: 2015 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations. Circulation 2016; 132:S51-83. [PMID: 26472859 DOI: 10.1161/cir.0000000000000272] [Citation(s) in RCA: 144] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This review comprises the most extensive literature search and evidence evaluation to date on the most important international BLS interventions, diagnostics, and prognostic factors for cardiac arrest victims. It reemphasizes that the critical lifesaving steps of BLS are (1) prevention, (2) immediate recognition and activation of the emergency response system, (3) early high-quality CPR, and (4) rapid defibrillation for shockable rhythms. Highlights in prevention indicate the rational and judicious deployment of search-and-rescue operations in drowning victims and the importance of education on opioid-associated emergencies. Other 2015 highlights in recognition and activation include the critical role of dispatcher recognition and dispatch-assisted chest compressions, which has been demonstrated in multiple international jurisdictions with consistent improvements in cardiac arrest survival. Similar to the 2010 ILCOR BLS treatment recommendations, the importance of high quality was reemphasized across all measures of CPR quality: rate, depth, recoil, and minimal chest compression pauses, with a universal understanding that we all should be providing chest compressions to all victims of cardiac arrest. This review continued to focus on the interface of BLS sequencing and ensuring high-quality CPR with other important BLS interventions, such as ventilation and defibrillation. In addition, this consensus statement highlights the importance of EMS systems, which employ bundles of care focusing on providing high-quality chest compressions while extricating the patient from the scene to the next level of care. Highlights in defibrillation indicate the global importance of increasing the number of sites with public-access defibrillation programs. Whereas the 2010 ILCOR Consensus on Science provided important direction for the “what” in resuscitation (ie, what to do), the 2015 consensus has begun with the GRADE methodology to provide direction for the quality of resuscitation. We hope that resuscitation councils and other stakeholders will be able to translate this body of knowledge of international consensus statements to build their own effective resuscitation guidelines.
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