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Heidet M, Benjamin Leung KH, Bougouin W, Alam R, Frattini B, Liang D, Jost D, Canon V, Deakin J, Hubert H, Christenson J, Vivien B, Chan T, Cariou A, Dumas F, Jouven X, Marijon E, Bennington S, Travers S, Souihi S, Mermet E, Freyssenge J, Arrouy L, Lecarpentier E, Derkenne C, Grunau B. Improving EMS response times for out-of-hospital cardiac arrest in urban areas using drone-like vertical take-off and landing air ambulances: An international, simulation-based cohort study. Resuscitation 2023; 193:109995. [PMID: 37813148 DOI: 10.1016/j.resuscitation.2023.109995] [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: 07/26/2023] [Revised: 09/12/2023] [Accepted: 10/02/2023] [Indexed: 10/11/2023]
Abstract
BACKGROUND Advances in vertical take-off and landing (VTOL) technologies may enable drone-like crewed air ambulances to rapidly respond to out-of-hospital cardiac arrest (OHCA) in urban areas. We estimated the impact of incorporating VTOL air ambulances on OHCA response intervals in two large urban centres in France and Canada. METHODS We included adult OHCAs occurring between Jan. 2017-Dec. 2018 within Greater Paris in France and Metro Vancouver in Canada. Both regions utilize tiered OHCA response with basic (BLS)- and advanced life support (ALS)-capable units. We simulated incorporating 1-2 ALS-capable VTOL air ambulances dedicated to OHCA response in each study region, and computed time intervals from call reception by emergency medical services (EMS) to arrival of the: (1) first ALS unit ("call-to-ALS arrival interval"); and (2) first EMS unit ("call-to-first EMS arrival interval"). RESULTS There were 6,217 OHCAs included during the study period (3,760 in Greater Paris and 2,457 in Metro Vancouver). Historical median call-to-ALS arrival intervals were 21 min [IQR 16-29] in Greater Paris and 12 min [IQR 9-17] in Metro Vancouver, while median call-to-first EMS arrival intervals were 11 min [IQR 8-14] and 7 min [IQR 5-8] respectively. Incorporating 1-2 VTOL air ambulances improved median call-to-ALS arrival intervals to 7-9 min and call-to-first EMS arrival intervals to 6-8 min in both study regions (all P < 0.001). CONCLUSION VTOL air ambulances dedicated to OHCA response may improve EMS response intervals, with substantial improvements in ALS response metrics.
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Affiliation(s)
- Matthieu Heidet
- Assistance Publique-Hôpitaux de Paris (AP-HP), SAMU 94, Henri Mondor University Hospital, Créteil, France; Université Paris-Est Créteil (UPEC), CIR/TincNet (EA-3956), Créteil, France.
| | - K H Benjamin Leung
- Department of Mechanical and Industrial Engineering University of Toronto, Toronto, Canada
| | - Wulfran Bougouin
- Université de Paris, INSERM U970, Paris Cardiovascular Research Center (PARCC), European Georges Pompidou Hospital, Paris, France; Paris Sudden Death Expertise Center, Paris, France; Medical Intensive Care Unit, Ramsay Générale de Santé, Hôpital Privé Jacques Cartier, Massy, France
| | - Rejuana Alam
- Department of Mechanical and Industrial Engineering University of Toronto, Toronto, Canada
| | | | - Danny Liang
- Department of Emergency Medicine, University of Calgary, Calgary, Canada
| | - Daniel Jost
- Paris Fire Brigade (BSPP), Paris, France; Paris Sudden Death Expertise Center, Paris, France
| | | | | | | | - Jim Christenson
- Centre for Health Evaluation and Outcome Sciences (CHEOS), Vancouver, Canada; Department of Emergency Medicine, St Paul's Hospital and University of British Columbia, Vancouver, Canada
| | - Benoît Vivien
- AP-HP, SAMU 75, Necker University Hospital, Paris, France
| | - Timothy Chan
- Department of Mechanical and Industrial Engineering University of Toronto, Toronto, Canada
| | - Alain Cariou
- Paris Sudden Death Expertise Center, Paris, France; AP-HP, Medical Intensive Care Unit, Cochin University Hospital, Paris, France
| | - Florence Dumas
- Université de Paris, INSERM U970, Paris Cardiovascular Research Center (PARCC), European Georges Pompidou Hospital, Paris, France; Paris Sudden Death Expertise Center, Paris, France; AP-HP, Emergency Department, Cochin-Hotel-Dieu University Hospital, Paris, France
| | - Xavier Jouven
- Université de Paris, INSERM U970, Paris Cardiovascular Research Center (PARCC), European Georges Pompidou Hospital, Paris, France; Paris Sudden Death Expertise Center, Paris, France; AP-HP, Cardiology Department, European Georges Pompidou University Hospital, Paris, France
| | - Eloi Marijon
- Université de Paris, INSERM U970, Paris Cardiovascular Research Center (PARCC), European Georges Pompidou Hospital, Paris, France; Paris Sudden Death Expertise Center, Paris, France; AP-HP, Cardiology Department, European Georges Pompidou University Hospital, Paris, France
| | - Steven Bennington
- Assistance Publique-Hôpitaux de Paris (AP-HP), SAMU 94, Henri Mondor University Hospital, Créteil, France
| | | | - Sami Souihi
- Université Paris-Est Créteil (UPEC), CIR/TincNet (EA-3956), Créteil, France
| | - Eric Mermet
- Centre National pour la Recherche scientifique (CNRS), TSE-R, UMR 5314, Toulouse, France; Toulouse School of Economics (TSE), Toulouse, France
| | - Julie Freyssenge
- Université Claude Bernard Lyon 1, INSERME U1290, Research on Healthcare Performance (RESHAPE), Lyon, France; Urgences-ARA Network, ARS Auvergne Rhône-Alpes, Lyon, France
| | - Laurence Arrouy
- AP-HP, Emergency Department, Paris Ile-de-France Ouest University Hospitals, Ambroise Paré University Hospital, Boulogne-Billancourt, France
| | - Eric Lecarpentier
- Assistance Publique-Hôpitaux de Paris (AP-HP), SAMU 94, Henri Mondor University Hospital, Créteil, France
| | - Clément Derkenne
- Medical Intensive Care Unit, Ramsay Générale de Santé, Hôpital Privé Jacques Cartier, Massy, France
| | - Brian Grunau
- Centre for Health Evaluation and Outcome Sciences (CHEOS), Vancouver, Canada; Department of Emergency Medicine, St Paul's Hospital and University of British Columbia, Vancouver, Canada
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Jung E, Ryu HH, Ro YS, Shin SD. Association between post-cardiac arrest treatments and clinical outcomes according to scene time interval in out-of-hospital cardiac arrest: Retrospective cross-sectional study. Am J Emerg Med 2023; 72:27-33. [PMID: 37467557 DOI: 10.1016/j.ajem.2023.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 06/24/2023] [Accepted: 07/09/2023] [Indexed: 07/21/2023] Open
Abstract
BACKGROUND Previous studies have reported that Post-Cardiac arrest (PCA) treatments including targeted temperature management (TTM), coronary reperfusion therapy (CRT), and extracorporeal membrane oxygenation (ECMO) are time-sensitive; however, there are no reports of the clinical outcomes of PCA treatment according to the scene time interval (STI). Our study aimed to investigated the clinical outcomes of PCA treatment according to the STI. METHODS We used a Korean nationwide OHCA cohort database from January 2017 to December 2020. The inclusion criteria were all adult OHCA patients with a presumed cardiac etiology, bystander-witnessed arrest, and prehospital return of spontaneous circulation (ROSC). The outcomes were survival to discharge and good neurological recovery. The main exposure of interest was PCA treatment. We compared the outcomes using multivariable logistic regression, and interaction terms were included in the final model to assess whether the STI modified the effect of PCA treatment on clinical outcomes of OHCA. RESULTS TTM and CRT were associated with high survival to discharge and good neurological recovery. In the interaction analysis, ECMO had an interaction effect with the STI on a good CPC among patients with OHCA [short STI (0 to 11 min) (1.16 (0.77-1.75)), middle STI (12 to 15 min) (0.66 (0.41-1.06)), and long STI (16 to 30 min) (0.59 (0.40-0.88)) (p for interaction <0.05)]. CONCLUSION In adult bystander-witnessed patients with OHCA with prehospital ROSC, an STI of >16 min was a risk factor for poor neurological outcome in those patients who underwent ECMO.
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Affiliation(s)
- Eujene Jung
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Hyun Ho Ryu
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea; Medicine, Chonnam National University, Gwangju, Republic of Korea.
| | - Young Sun Ro
- Department of Emergency Medicine, Seoul National University hospital, Seoul, Republic of Korea
| | - Sang Do Shin
- Department of Emergency Medicine, Seoul National University, Seoul, Republic of Korea
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Yang HC, Park SM, Lee KJ, Jo YH, Kim YJ, Lee DK, Jang DH. Delayed arrival of advanced life support adversely affects the neurological outcome in a multi-tier emergency response system. Am J Emerg Med 2023; 71:1-6. [PMID: 37315438 DOI: 10.1016/j.ajem.2023.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 06/16/2023] Open
Abstract
AIM Prehospital management of out-of-hospital cardiac arrest (OHCA) is based on basic life support, with the addition of advanced life support (ALS) if possible. This study aimed to investigate the effect of delayed arrival of ALS on neurological outcomes of patients with OHCA at hospital discharge. METHODS This was a retrospective study of a registry of patients with OHCA. A multi-tier emergency response system was established in the study area. ALS was initiated when the second-arrival team arrived at the scene. A restricted cubic spline curve was used to investigate the relationship between the response time interval of the second-arrival team and neurological outcomes at hospital discharge. Multivariable logistic regression analysis was performed to assess the independent association between the response time interval of the second-arrival team and neurological outcomes of patients at hospital discharge. RESULTS A total of 3186 adult OHCA patients who received ALS at the scene were included in the final analysis. A restricted cubic spline curve showed that a long response time interval of the second-arrival team was correlated with a high likelihood of poor neurological outcomes. Meanwhile, multivariable logistic regression analysis showed that a long response time interval of the second-arrival team was independently associated with poor neurological outcomes (odds ratio, 1.10; 95% confidence interval, 1.03-1.17). CONCLUSION In a multi-tiered prehospital emergency response system, the delayed arrival of ALS was associated with poor neurological outcomes at hospital discharge.
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Affiliation(s)
- Hae Chul Yang
- Department of Emergency Medicine, Seoul National University Bundang Hospital 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do 13620, Republic of Korea; Ajou University Graduate School of Public Health 206, World Cup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16499, Republic of Korea
| | - Seung Min Park
- Department of Emergency Medicine, Seoul National University Bundang Hospital 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do 13620, Republic of Korea; Department of Emergency Medicine, Seoul National University College of Medicine 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Kui Ja Lee
- Department of Emergency Medical Services, Kyungdong University, Wonju, Gangwon 26495, 815, Gyeonhwon-ro, Munmak-eup, Wonju-si, Gangwon-do 26495, Republic of Korea
| | - You Hwan Jo
- Department of Emergency Medicine, Seoul National University Bundang Hospital 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do 13620, Republic of Korea; Department of Emergency Medicine, Seoul National University College of Medicine 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Yu Jin Kim
- Department of Emergency Medicine, Seoul National University Bundang Hospital 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do 13620, Republic of Korea; Department of Emergency Medicine, Seoul National University College of Medicine 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Dong Keon Lee
- Department of Emergency Medicine, Seoul National University Bundang Hospital 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do 13620, Republic of Korea; Department of Emergency Medicine, Seoul National University College of Medicine 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea.
| | - Dong-Hyun Jang
- Department of Public Healthcare Service, Seoul National University Bundang Hospital 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do 13620, Republic of Korea.
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Omatsu K, Uchiyama M, Shimizu U, Ling Y, Okuda S, Koyama Y. Impact of Heavy Snowfall on Emergency Transport and Prognosis of Out-of-Hospital Cardiac Arrest Patients: A Nation-Wide Cohort Study. Prehosp Disaster Med 2023; 38:436-443. [PMID: 37448197 PMCID: PMC10445114 DOI: 10.1017/s1049023x23006040] [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: 04/25/2023] [Revised: 05/31/2023] [Accepted: 06/08/2023] [Indexed: 07/15/2023]
Abstract
BACKGROUND Out-of-hospital cardiac arrest (OHCA) is a significant global cause of mortality, and Emergency Medical Services (EMS) response interval is critical for survival and a neurologically-favorable outcome. Currently, it is unclear whether EMS response interval, neurologically-intact survival, and overall survival differ between snowy and non-snowy periods at heavy snowfall areas. METHODS A nation-wide population-based cohort of OHCA patients, registered from 2017 through 2019 in the All-Japan Utstein Registry, was divided into four groups according to areas (heavy snowfall area or other area) and seasons (winter or non-winter): heavy snowfall-winter, heavy snowfall-non-winter, other area-winter, and other area-non-winter. The first coprimary outcome was EMS response interval, and the secondary coprimary outcome was one-month survival and a neurologically-favorable outcome at one month. RESULTS A total of 337,781 OHCA patients were divided into four groups: heavy snowfall-winter (N = 15,627), heavy snowfall-non-winter (N = 97,441), other area-winter (N = 32,955), and other area-non-winter (N = 191,758). Longer EMS response intervals (>13 minutes) were most likely in the heavy snowfall-winter group (OR = 1.86; 95% CI, 1.76 to 1.97), and also more likely in heavy snowfall areas in non-winter (OR = 1.44; 95% CI, 1.38 to 1.50). One-month survival in winter was worse not only in the heavy snowfall area (OR = 0.86; 95% CI, 0.78 to 0.94) but also in other areas (OR = 0.91; 95% CI, 0.87 to 0.94). One-month neurologically-favorable outcomes were also comparable between heavy snowfall-winter and other area-non-winter groups. CONCLUSIONS This study showed OHCA in heavy snowfall areas in winter resulted in longer EMS response intervals. However, heavy snowfall had little effect on one-month survival or neurologically-favorable outcome at one month.
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Affiliation(s)
- Kentaro Omatsu
- Department of Nursing, Niigata University Graduate School of Health Sciences, Niigata, Japan
- Department of Emergency Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - Mieko Uchiyama
- Department of Nursing, Niigata University Graduate School of Health Sciences, Niigata, Japan
| | - Utako Shimizu
- Department of Nursing, Niigata University Graduate School of Health Sciences, Niigata, Japan
| | - Yiwei Ling
- Bioinformatics Laboratory, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Shujiro Okuda
- Bioinformatics Laboratory, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yu Koyama
- Department of Nursing, Niigata University Graduate School of Health Sciences, Niigata, Japan
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Influence of advanced life support response time on out-of-hospital cardiac arrest patient outcomes in Taipei. PLoS One 2022; 17:e0266969. [PMID: 35421162 PMCID: PMC9009650 DOI: 10.1371/journal.pone.0266969] [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: 11/25/2021] [Accepted: 03/30/2022] [Indexed: 11/19/2022] Open
Abstract
Background The association between out-of-hospital cardiac arrest patient survival and advanced life support response time remained controversial. We aimed to test the hypothesis that for adult, non-traumatic, out-of-hospital cardiac arrest patients, a shorter advanced life support response time is associated with a better chance of survival. We analyzed Utstein-based registry data on adult, non-traumatic, out-of-hospital cardiac arrest patients in Taipei from 2011 to 2015. Methods Patients without complete data, witnessed by emergency medical technicians, or with response times of ≥ 15 minutes, were excluded. We used logistic regression with an exposure of advanced life support response time. Primary and secondary outcomes were survival to hospital discharge and favorable neurological outcomes (cerebral performance category ≤ 2), respectively. Subgroup analyses were based on presenting rhythms of out-of-hospital cardiac arrest, bystander cardiopulmonary resuscitation, and witness status. Results A total of 4,278 cases were included in the final analysis. The median advanced life support response time was 9 minutes. For every minute delayed in advanced life support response time, the chance of survival to hospital discharge would reduce by 7% and chance of favorable neurological outcome by 9%. Subgroup analysis showed that a longer advanced life support response time was negatively associated with the chance of survival to hospital discharge among out-of-hospital cardiac arrest patients with shockable rhythm and pulse electrical activity groups. Conclusions In non-traumatic, adult, out-of-hospital cardiac arrest patients in Taipei, a longer advanced life support response time was associated with declining odds of survival to hospital discharge and favorable neurologic outcomes, especially in patients presenting with shockable rhythm and pulse electrical activity.
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Salhi RA, Hammond S, Lehrich JL, O'leary M, Kamdar N, Brent C, Mendes de Leon CF, Mendel P, Nelson C, Forbush B, Neumar R, Nallamothu BK, Abir M. The Association of Fire or Police First Responder Initiated Interventions with Out of Hospital Cardiac Arrest Survival. Resuscitation 2022; 174:9-15. [PMID: 35257834 PMCID: PMC9050861 DOI: 10.1016/j.resuscitation.2022.02.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/12/2022] [Accepted: 02/27/2022] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Fire and police first responders are often the first to arrive in medical emergencies and provide basic life support services until specialized personnel arrive. This study aims to evaluate rates of fire or police first responder-initiated cardiopulmonary resuscitation (CPR) and automated external defibrillator (AED) use, as well as their associated impact on out-of-hospital cardiac arrest (OHCA) outcomes. METHODS We completed a secondary data analysis of the MI-CARES registry from 2014 to 2019. We reported rates of CPR initiation and AED use by fire or police first responders. Multilevel modeling was utilized to evaluate the relationship between fire/police first responder-initiated interventions and outcomes of interest: ROSC upon emergency department arrival, survival to hospital discharge, and good neurologic outcome. RESULTS Our cohort included 25,067 OHCA incidents. We found fire or police first responders initiated CPR in 31.8% of OHCA events and AED use in 6.1% of OHCA events. Likelihood of sustained ROSC on ED arrival after CPR initiated by a fire/police first responder was not statistically different as compared to EMS initiated CPR (aOR 1.01, CI 0.93-1.11). However, fire/police first responder interventions were associated with significantly higher odds of survival to hospital discharge and survival with good neurologic outcome (aOR 1.25, 95% CI 1.08-1.45 and aOR 1.40, 95% CI 1.18-1.65, respectively). Similar associations were see when examining fire or police initiated AED use. CONCLUSIONS Fire or police first responders may be an underutilized, potentially powerful mechanism for improving OHCA survival. Future studies should investigate barriers and opportunities for increasing first responder interventions by these groups in OHCA.
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Sirikul W, Piankusol C, Wittayachamnankul B, Riyapan S, Supasaovapak J, Wongtanasarasin W, McNally B. A retrospective multi-centre cohort study: Pre-hospital survival factors of out-of-hospital cardiac arrest (OHCA) patients in Thailand. Resusc Plus 2022; 9:100196. [PMID: 35036967 PMCID: PMC8749449 DOI: 10.1016/j.resplu.2021.100196] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 11/30/2021] [Accepted: 12/13/2021] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE This study aimed to explore significant pre-hospital factors affecting the survivability of Out-of-Hospital Cardiac Arrest (OHCA) patients in countries with developing EMS systems. METHOD A retrospective cohort study was conducted examining data from January 1, 2017 to December 31, 2020 from Utstein Registry databases in Thailand, collected through Pan-Asian Resuscitation Outcomes Study (PAROS). Data were collected from three centres, including regional, suburban-capital, and urban-capital hospitals. The primary endpoint of this study was 30-day survival or discharged alive after an OHCA event. The multivariable risk regression was done by modified Poisson regression with robust error variance to explore the association between 30-day survival and pre-hospital factors with potential confounders adjustments. FINDINGS Of 1,240 OHCA cases transferred by Emergency Medical Services (EMS), 42 patients (3.4%) were discharged alive after 30 days, including 22 (8.6%), 8 (3.0%), and 12 (1.7%) from regional, suburban-capital, and urban-capital centres, respectively. The initial arrest rhythm was 89.7% unshockable, with no significant variations across the three centres. Overall, bystander Cardiopulmonary Resuscitation (CPR) was 40.4%. However, bystander CPR with Automated External Defibrillator (AED) application was 0.8%. Bystander CPR significantly increased 30-day survival probability (aRR 1.88, 95% CI 1.01 to 3.51; p 0.049). Additionally, reducing the EMS response time by one minute significantly increased OHCA survivability (aRR 1.12, 95% CI 1.04 to 1.20; p 0.001). CONCLUSIONS Response time and bystander CPR are the factors that improve the 30-day survival outcomes of OHCA patients. In contrast, scene time, transport time, and pre-hospital advanced airway management didn't improve 30-day OHCA survival.
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Affiliation(s)
| | - Chanodom Piankusol
- Faculty of Medicine, Chiang Mai University, Thailand
- Corresponding author at: Department of Community Medicine, Faculty of Medicine, Chiang Mai University, 110 Intawaroros, Muang, Chiang Mai 50200, Thailand.
| | | | - Sattha Riyapan
- Faculty of Medicine Siriraj Hospital, Mahidol University, Thailand
| | | | | | - Bryan McNally
- Emory University School of Medicine, Emory University, United States
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Kim DK, Kim TH, Shin SD, Ro YS, Song KJ, Hong KJ, Jeong J. Impact of crowding in local ambulance demand on call-to-ambulance scene arrival in out-of-hospital cardiac arrest. Am J Emerg Med 2021; 52:105-109. [PMID: 34920390 DOI: 10.1016/j.ajem.2021.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/03/2021] [Accepted: 12/03/2021] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Rapid emergency medical service (EMS) response is an important prognostic factor in out-of-hospital cardiac arrest (OHCA). This study aims to evaluate the association between local hourly EMS demand and ambulance response in OHCA. METHODS OHCA occurring in 24 districts of Seoul from 2013 to 2018 was analyzed. Hourly ambulance demand per ambulance in each local district of patient location at the hour of cardiac arrest was calculated as the crowding index. The crowding index was categorized according to quartiles (1Q: ≤0.43, 2Q: 0.44-0.67, 3Q: 0.68-0.99, 4Q: ≥1.0 calls/h\r/ambulance). The primary outcome was ambulance dispatched within 1 km of the OHCA scene. Multivariable logistic regression analysis was performed to test the association between the local hourly ambulance demand and outcomes. RESULTS A total of 26,479 patients were analyzed. The rate of ambulance dispatched within 1 km decreased according to the crowding quartile (1Q: 31.3%, 2Q: 30.0%, 3Q: 28.8%, and 4Q: 26.6%). Compared to 1Q, adjusted odds ratios (95% CIs) of dispatch distance within 1 km in 2Q, 3Q, and 4Q were 0.92 (0.86-0.99), 0.86 (0.80-0.94), and 0.77 (0.71-0.84), respectively. CONCLUSION Crowding in local ambulance demand was associated with less ambulance dispatched within 1 km and delayed response to the scene in OHCA. Strategies to mitigate and adjust to ambulance demand crowding may be considered for better EMS response performance.
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Affiliation(s)
- Dae Kon Kim
- Department of Emergency Medicine, Seoul National University Bundang Hospital, South Korea; Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, South Korea
| | - Tae Han Kim
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, South Korea; Department of Emergency Medicine, Seoul National University Boramae Medical Center, South Korea.
| | - Sang Do Shin
- Department of Emergency Medicine, Seoul National University Hospital, South Korea
| | - Young Sun Ro
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, South Korea; Department of Emergency Medicine, Seoul National University Hospital, South Korea
| | - Kyoung Jun Song
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, South Korea; Department of Emergency Medicine, Seoul National University Boramae Medical Center, South Korea
| | - Ki Jeong Hong
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, South Korea; Department of Emergency Medicine, Seoul National University Hospital, South Korea
| | - Joo Jeong
- Department of Emergency Medicine, Seoul National University Bundang Hospital, South Korea; Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, South Korea
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Morales-Gabardino J, Redondo-Lobato L, Ribeiro J, Buitrago F. Geographical Distribution of Emergency Services Times in Traffic Accidents in Extremadura. PORTUGUESE JOURNAL OF PUBLIC HEALTH 2021. [DOI: 10.1159/000519858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Objective: To analyze the response time and transport time taken by the emergency medical services (EMS), considering their urban or rural location, to attend traffic accident casualties that occurred in the different geographical areas of Extremadura (Spain) from 2012 to 2015. Methods: This was a cross-sectional study of the data recorded by the Emergency Response Coordination Center 112 (ERCC-112) from traffic accidents attended by EMS. Response time was defined as the time elapsed from the request-for-care receipt until arrival of the EMS at the accident scene, and transport time as that from leaving the scene until arrival to the referral hospital. Rural EMS were those based in locations where there is no hospital, and urban EMS those located in towns or cities with a hospital. Results: During the 4-year period studied, 5,572 traffic accidents requested assistance through the ERCC-112. From the 2,875 accidents (51.9%) in which EMS were mobilized, 55.4% occurred in urban roads and the remaining in interurban ones. A total of 113 people (mean age 48.4 ± 19.0 years, range 15–84 years) died at the accident scene or before arrival to the hospital, 88.5% of them in interurban accidents. The average response time of urban and rural EMS was 10.7 ± 7.3 and 18.0 ± 12.6 min (p < 0.001), respectively, and the average transport time was 13.2 ± 11.7 and 45.2 ± 25.0 min (p = 0.009). Response time was longer than the 30-min optimum only in the most peripheral areas of Extremadura, while transport time exceeded the optimum of 90 min in the eastern regions of two health areas (Cáceres and Don Benito-Villanueva). 19.1% of the victims attended by rural EMS were classified as having a serious prognosis or as having died, as compared with 11.2% (p = 0.048) of those attended by urban EMS. Conclusions: The geographical location of EMS in Extremadura (Spain) guarantees adequate response times in traffic accidents, both in rural and urban areas. However, recommended transport times were occasionally exceeded in the most peripheral areas, due to hospital location.
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Lupton JR, Neth MR, Sahni R, Wittwer L, Le N, Jui J, Newgard CD, Daya MR. The Association Between the Number of Prehospital Providers On-Scene and Out-of-Hospital Cardiac Arrest Outcomes. PREHOSP EMERG CARE 2021; 26:782-791. [PMID: 34669565 DOI: 10.1080/10903127.2021.1995799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Objective: The ideal number of emergency medical services (EMS) providers needed on-scene during an out-of-hospital cardiac arrest (OHCA) resuscitation is unknown. Our objective was to evaluate the association between the number of providers on-scene and OHCA outcomes. Methods: This was a secondary analysis of adults (≥18 years old) with non-traumatic OHCA from a 10-site North American prospective cardiac arrest registry (Resuscitation Outcomes Consortium) including a 2005-2011 cohort and a 2011-2015 cohort. The primary outcome was survival to hospital discharge. We calculated the median number of EMS providers on-scene during the first 10 minutes of the resuscitation and used multivariable logistic regression adjusting for age, sex, witness status, bystander CPR, arrest location, initial rhythm, and dispatch to EMS arrival time. Results: There were 30,613 and 41,946 patients with necessary variables in the 2005-2011 and 2011-2015 cohorts, respectively. Survival to hospital discharge (95% CI) was higher with 9 or more providers on-scene (17.2% [15.8-18.5] and 14.0% [12.6-15.4]) compared to 7-8 (14.1% [13.4-14.8] and 10.5% [9.9-11.1]), 5-6 (10.0% [9.5-10.5] and 8.5% [8.1-8.9]), 3-4 (10.5% [9.3-11.6] and 9.3% [8.5-10.1]), and 1-2 (8.6% [7.2-10.0] and 8.0% [7.1-9.0]) providers for the 2005-2011 and 2011-2015 cohorts, respectively. In multivariable logistic regressions, compared to 5-6 providers, there were no significant differences in survival to hospital discharge for 1-2 or 3-4 providers, while having 7-8 (adjusted odds ratios (aORs) 1.53 [1.39-1.67] and 1.31 [1.20-1.44]) and 9 or more (aORs 1.76 [1.56-1.98] and 1.63 [1.41-1.89]) providers were associated with improved survival in both the 2005-2011 and 2011-2015 cohorts, respectively. Conclusions: The presence of seven or more prehospital providers on-scene was associated with significantly greater adjusted odds of survival to hospital discharge after OHCA compared to fewer on-scene providers.
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Nord-Ljungquist H, Bohm K, Fridlund B, Elmqvist C, Engström Å. "Time that save lives" while waiting for ambulance in rural environments. Int Emerg Nurs 2021; 59:101100. [PMID: 34781156 DOI: 10.1016/j.ienj.2021.101100] [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: 09/20/2020] [Revised: 09/15/2021] [Accepted: 09/29/2021] [Indexed: 10/19/2022]
Abstract
AIM Firefighters perform first aid before the ambulance arrives in areas with a long response time in Sweden; this is called 'While Waiting for the Ambulance' (WWFA). The aim was to describe WWFA assignments in rural environments, focusing on frequency, event time, actions and survival >30 days after cardiopulmonary resuscitation (CPR) was performed. METHODS Retrospective descriptive and comparative design. RESULTS Firefighters in the northern part of Sweden were involved in 518 WWFA assignments between 2012 and 2016. From alarm call until ambulance dispatch, median time was 2:20 min; for firefighters, nearly four minutes. Median dispatch time at out-of-hospital cardiac arrests (OHCA) (n = 52) was 1:40 min for ambulance and three minutes for firefighters. Maximal dispatch time was nearly 10 min for ambulance and 44 min for firefighters. Firefighters arrived first at the scene, after 17 min' median, for 95 % of assignments, while the ambulance took nearly twice the amount of time. In OHCA situations, time for firefighters was over 19 min versus ambulance at nearly twice the time. CPR was terminated by ambulance staff at 83% (n = 43) of 52 when firefighters performed prolonged CPR. Return to spontaneous circulation after OHCA was 17%, and 9% were alive after >30 days. CONCLUSION The efficiency of incident time and utilisation rate for WWFA assignments can be increased for the benefit of affected persons, especially in OHCA.
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Affiliation(s)
- Helena Nord-Ljungquist
- Centre of Interprofessional Collaboration within Emergency Care (CICE), Linnaeus University, Växjö, Sweden; Division of Nursing and Medical Technology, Department of Health Science, Luleå University of Technology, Luleå, Sweden.
| | - Katarina Bohm
- Karolinska Institute, Department of Clinical Science and Education, Södersjukhuset, Stockholm, Sweden; Department of Emergency Medicine, Södersjukhuset, Stockholm, Sweden.
| | - Bengt Fridlund
- Centre of Interprofessional Collaboration within Emergency Care (CICE), Linnaeus University, Växjö, Sweden
| | - Carina Elmqvist
- Centre of Interprofessional Collaboration within Emergency Care (CICE), Linnaeus University, Växjö, Sweden; Head of Research in County Council Kronoberg and Research Manager for the Centre of Interprofessional Collaboration within Emergency Care (CICE) at the Department of Health and Caring Science, Linnaeus University, Sweden.
| | - Åsa Engström
- Division of Nursing and Medical Technology, Department of Health Science, Luleå University of Technology, Luleå, Sweden.
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Jang DH, Jo YH, Park SM, Lee KJ, Kim YJ, Lee DK. Association of the duration of on-scene advanced life support with good neurological recovery in out-of-hospital cardiac arrest. Am J Emerg Med 2021; 50:486-491. [PMID: 34517174 DOI: 10.1016/j.ajem.2021.09.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/19/2021] [Accepted: 09/01/2021] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND As advanced life support (ALS) provided by emergency medical services (EMS) on scene becomes more common, the scene time interval (STI) for which EMS providers stay on scene tends to lengthen. We investigated the relationship between the STI and neurological outcome of patients at hospital discharge when ALS was provided by EMS on scene. METHODS We conducted a retrospective analysis of prospectively collected out-of-hospital cardiac arrest (OHCA) data between August 2015 and December 2018. A restricted cubic spline curve was used to investigate the relationship between the STI and neurologic outcome, and patients were divided into two groups based on the cut-off value obtained through receiver operating characteristic (ROC) analysis. Comparisons of outcomes between the two groups were performed before and after propensity score matching. RESULTS 4548 patients were included in the analysis. In ROC analysis, the optimal cut-off value for STI was 19 min. For the group with an STI <19 min, survival admission, survival discharge, and good neurologic outcome at hospital discharge were all higher than for the group with STI ≥19 min before and after propensity score matching. The multivariable model also showed that the STI ≥19 min was significantly associated with poor neurologic outcome at hospital discharge compared with the STI <19 min (adjusted odds ratio, 2.00; 95% CI, 1.40-2.88). CONCLUSIONS A duration of on-scene ALS more than 19 min was associated with a poor neurologic outcome of patients at hospital discharge in OHCA.
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Affiliation(s)
- Dong-Hyun Jang
- Department of Emergency Medicine, Korea University Anam Hospital, Seoul, Republic of Korea
| | - You Hwan Jo
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Seung Min Park
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kui Ja Lee
- Department of Emergency Medical Services, Kyungdong University, Wonju, Republic of Korea
| | - Yu Jin Kim
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
| | - Dong Keon Lee
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
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Payot C, Fehlmann CA, Suppan L, Niquille M, Lardi C, Sarasin FP, Larribau R. Factors Influencing Physician Decision Making to Attempt Advanced Resuscitation in Asystolic Out-of-Hospital Cardiac Arrest. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18168323. [PMID: 34444071 PMCID: PMC8391446 DOI: 10.3390/ijerph18168323] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 08/03/2021] [Accepted: 08/04/2021] [Indexed: 11/16/2022]
Abstract
The objective of this study was to identify the key elements used by prehospital emergency physicians (EP) to decide whether or not to attempt advanced life support (ALS) in asystolic out-of-hospital cardiac arrest (OHCA). From 1 January 2009 to 1 January 2017, all adult victims of asystolic OHCA in Geneva, Switzerland, were retrospectively included. Patients with signs of “obvious death” or with a Do-Not-Attempt-Resuscitation order were excluded. Patients were categorized as having received ALS if this was mentioned in the medical record, or, failing that, if at least one dose of adrenaline had been administered during cardiopulmonary resuscitation (CPR). Prognostic factors known at the time of EP’s decision were included in a multivariable logistic regression model. Included were 784 patients. Factors favourably influencing the decision to provide ALS were witnessed OHCA (OR = 2.14, 95% CI: 1.43–3.20) and bystander CPR (OR = 4.10, 95% CI: 2.28–7.39). Traumatic aetiology (OR = 0.04, 95% CI: 0.02–0.08), age > 80 years (OR = 0.14, 95% CI: 0.09–0.24) and a Charlson comorbidity index greater than 5 (OR = 0.12, 95% CI: 0.06–0.27) were the factors most strongly associated with the decision not to attempt ALS. Factors influencing the EP’s decision to attempt ALS in asystolic OHCA are the relatively young age of the patients, few comorbidities, presumed medical aetiology, witnessed OHCA and bystander CPR.
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Affiliation(s)
- Charles Payot
- Division of Emergency Medicine, Department of Anaesthesiology, Clinical Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, 1211 Geneva, Switzerland; (C.P.); (C.A.F.); (L.S.); (M.N.); (F.P.S.)
| | - Christophe A. Fehlmann
- Division of Emergency Medicine, Department of Anaesthesiology, Clinical Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, 1211 Geneva, Switzerland; (C.P.); (C.A.F.); (L.S.); (M.N.); (F.P.S.)
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, ON K1G 5Z3, Canada
- Emergency Medicine, Research Group, Ottawa Hospital Research Institute, Ottawa, ON K1Y 4E9, Canada
| | - Laurent Suppan
- Division of Emergency Medicine, Department of Anaesthesiology, Clinical Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, 1211 Geneva, Switzerland; (C.P.); (C.A.F.); (L.S.); (M.N.); (F.P.S.)
| | - Marc Niquille
- Division of Emergency Medicine, Department of Anaesthesiology, Clinical Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, 1211 Geneva, Switzerland; (C.P.); (C.A.F.); (L.S.); (M.N.); (F.P.S.)
| | - Christelle Lardi
- University Center of Legal Medicine (CURML), Geneva University Hospitals, 1211 Geneva, Switzerland;
| | - François P. Sarasin
- Division of Emergency Medicine, Department of Anaesthesiology, Clinical Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, 1211 Geneva, Switzerland; (C.P.); (C.A.F.); (L.S.); (M.N.); (F.P.S.)
| | - Robert Larribau
- Division of Emergency Medicine, Department of Anaesthesiology, Clinical Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, 1211 Geneva, Switzerland; (C.P.); (C.A.F.); (L.S.); (M.N.); (F.P.S.)
- Correspondence: ; Tel.: +41-79-553-9400
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Response Time Threshold for Predicting Outcomes of Patients with Out-of-Hospital Cardiac Arrest. Emerg Med Int 2021; 2021:5564885. [PMID: 33628510 PMCID: PMC7892213 DOI: 10.1155/2021/5564885] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 01/30/2021] [Accepted: 02/04/2021] [Indexed: 01/06/2023] Open
Abstract
Ambulance response time is a prognostic factor for out-of-hospital cardiac arrest (OHCA), but the impact of ambulance response time under different situations remains unclear. We evaluated the threshold of ambulance response time for predicting survival to hospital discharge for patients with OHCA. A retrospective observational analysis was conducted using the emergency medical service (EMS) database (January 2015 to December 2019). Prehospital factors, underlying diseases, and OHCA outcomes were assessed. Receiver operating characteristic (ROC) curve analysis with Youden Index was performed to calculate optimal cut-off values for ambulance response time that predicted survival to hospital discharge. In all, 6742 cases of adult OHCA were analyzed. After adjustment for confounding factors, age (odds ratio [OR] = 0.983, 95% confidence interval [CI]: 0.975-0.992, p < 0.001), witness (OR = 3.022, 95% CI: 2.014-4.534, p < 0.001), public location (OR = 2.797, 95% CI: 2.062-3.793, p < 0.001), bystander cardiopulmonary resuscitation (CPR, OR = 1.363, 95% CI: 1.009-1.841, p=0.044), EMT-paramedic response (EMT-P, OR = 1.713, 95% CI: 1.282-2.290, p < 0.001), and prehospital defibrillation using an automated external defibrillator ([AED] OR = 3.984, 95% CI: 2.920-5.435, p < 0.001) were statistically and significantly associated with survival to hospital discharge. The cut-off value was 6.2 min. If the location of OHCA was a public place or bystander CPR was provided, the threshold was prolonged to 7.2 min and 6.3 min, respectively. In the absence of a witness, EMT-P, or AED, the threshold was reduced to 4.2, 5, and 5 min, respectively. The adjusted OR of EMS response time for survival to hospital discharge was 1.217 (per minute shorter, CI: 1.140-1299, p < 0.001) and 1.992 (<6.2 min, 95% CI: 1.496-2.653, p < 0.001). The optimal response time threshold for survival to hospital discharge was 6.2 min. In the case of OHCA in public areas or with bystander CPR, the threshold was prolonged, and without witness, the optimal response time threshold was shortened.
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15
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Huang JB, Lee KH, Ho YN, Tsai MT, Wu WT, Cheng FJ. Association between prehospital prognostic factors on out-of-hospital cardiac arrest in different age groups. BMC Emerg Med 2021; 21:3. [PMID: 33413131 PMCID: PMC7792209 DOI: 10.1186/s12873-020-00400-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 12/28/2020] [Indexed: 11/13/2022] Open
Abstract
Background The prognosis of out-of-hospital cardiac arrest (OHCA) is very poor. While several prehospital factors are known to be associated with improved survival, the impact of prehospital factors on different age groups is unclear. The objective of the study was to access the impact of prehospital factors and pre-existing comorbidities on OHCA outcomes in different age groups. Methods A retrospective observational analysis was conducted using the emergency medical service (EMS) database from January 2015 to December 2019. We collected information on prehospital factors, underlying diseases, and outcome of OHCAs in different age groups. Kaplan-Meier type survival curves and multivariable logistic regression were used to analyze the association between modifiable pre-hospital factors and outcomes. Results A total of 4188 witnessed adult OHCAs were analyzed. For the age group 1 (age ≦75 years old), after adjustment for confounding factors, EMS response time (odds ratio [OR] = 0.860, 95% confidence interval [CI]: 0.811–0.909, p < 0.001), public location (OR = 1.843, 95% CI: 1.179–1.761, p < 0.001), bystander CPR (OR = 1.329, 95% CI: 1.007–1.750, p = 0.045), attendance by an EMT-Paramedic (OR = 1.666, 95% CI: 1.277–2.168, p < 0.001), and prehospital defibrillation by automated external defibrillator (AED)(OR = 1.666, 95% CI: 1.277–2.168, p < 0.001) were prognostic factors for survival to hospital discharge in OHCA patients. For the age group 2 (age > 75 years old), age (OR = 0.924, CI:0.880–0.966, p = 0.001), EMS response time (OR = 0.833, 95% CI: 0.742–0.928, p = 0.001), public location (OR = 4.290, 95% CI: 2.450–7.343, p < 0.001), and attendance by an EMT-Paramedic (OR = 2.702, 95% CI: 1.704–4.279, p < 0.001) were independent prognostic factors for survival to hospital discharge in OHCA patients. Conclusions There were variations between younger and older OHCA patients. We found that bystander CPR and prehospital defibrillation by AED were independent prognostic factors for younger OHCA patients but not for the older group.
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Affiliation(s)
- Jyun-Bin Huang
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 123, Dapi Road, Niaosong Township, Kaohsiung County, 833, Kaohsiung City, Taiwan
| | - Kuo-Hsin Lee
- Department of Emergency Medicine, E-Da Hospital, I-Shou University, No. 1, Yi-Da Road, Jiao-Su Village, Yan-Chao District, Kaohsiung City, 824, Taiwan.,School of Medicine for International Student, I-Shou University, No. 8, Yi-Da Road, Jiao-Su Village, Yan-Chao District, Kaohsiung City, 824, Taiwan
| | - Yu-Ni Ho
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 123, Dapi Road, Niaosong Township, Kaohsiung County, 833, Kaohsiung City, Taiwan
| | - Ming-Ta Tsai
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 123, Dapi Road, Niaosong Township, Kaohsiung County, 833, Kaohsiung City, Taiwan
| | - Wei-Ting Wu
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 123, Dapi Road, Niaosong Township, Kaohsiung County, 833, Kaohsiung City, Taiwan
| | - Fu-Jen Cheng
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 123, Dapi Road, Niaosong Township, Kaohsiung County, 833, Kaohsiung City, Taiwan.
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16
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Hsu YC, Wu WT, Huang JB, Lee KH, Cheng FJ. Association between prehospital prognostic factors and out-of-hospital cardiac arrest: Effect of rural-urban disparities. Am J Emerg Med 2020; 46:456-461. [PMID: 33143958 DOI: 10.1016/j.ajem.2020.10.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/02/2020] [Accepted: 10/25/2020] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND Out-of-hospital cardiac arrest (OHCA) is associated with a poor prognosis and a highly variable survival rate. Few studies have focused on outcomes in rural and urban groups while also evaluating underlying diseases and prehospital factors for OHCAs. OBJECTIVE To investigate the relationship between the patient's underlying disease and outcomes of OHCAs in urban areas versus those in rural areas. METHODS We reviewed the emergency medical service (EMS) database for information on OHCA patients treated between January 2015 and December 2019, and collected data on pre-hospital factors, underlying diseases, and outcomes of OHCAs. Univariate and multivariate logistic regression analyses were used to evaluate the prognostic factors for OHCA. RESULTS Data from 4225 OHCAs were analysed. EMS response time was shorter and the rate of attendance by EMS paramedics was higher in urban areas (p < 0.001 for both). Urban area was a prognostic factor for >24-h survival (odds ratio [OR] = 1.437, 95% confidence interval [CI]: 1.179-1.761). Age (OR = 0.986, 95% CI: 0.979-0.993). EMS response time (OR = 0.854, 95% CI: 0.811-0.898), cardiac arrest location (OR = 2.187, 95% CI: 1.707-2.795), attendance by paramedics (OR = 1.867, 95% CI: 1.483-2.347), and prehospital defibrillation (OR = 2.771, 95% CI: 2.154-3.556) were independent risk factors for survival to hospital discharge, although the influence of an urban area was not significant (OR = 1.211, 95% CI: 0.918-1.584). CONCLUSIONS Compared with rural areas, OHCA in urban areas are associated with a higher 24-h survival rate. Shorter EMS response time and a higher probability of being attended by paramedics were noted in urban areas. Although shorter EMS response time, younger age, public location, defibrillation by an automated external defibrillator, and attendance by Emergency Medical Technician-paramedics were associated with a higher rate of survival to hospital discharge, urban area was not an independent prognostic factor for survival to hospital discharge in OHCA patients.
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Affiliation(s)
- Ying-Chen Hsu
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 123, Dapi Rd., Niaosong District, Kaohsiung County 833, Taiwan
| | - Wei-Ting Wu
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 123, Dapi Rd., Niaosong District, Kaohsiung County 833, Taiwan.
| | - Jyun-Bin Huang
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 123, Dapi Rd., Niaosong District, Kaohsiung County 833, Taiwan
| | - Kuo-Hsin Lee
- Department of Emergency Medicine, E-Da Hospital, I-Shou University, No.1, Yida Rd, Yanchao District, Kaohsiung City 824, Taiwan; School of Medicine for International Students, I-Shou University, No. 8, Yi-Da Road, Jiao-Su Village, Yan-Chao District, Kaohsiung City 824, Taiwan
| | - Fu-Jen Cheng
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 123, Dapi Rd., Niaosong District, Kaohsiung County 833, Taiwan.
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17
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Moon S, Ryoo HW, Ahn JY, Lee DE, Shin SD, Park JH. Association of response time interval with neurological outcomes after out-of-hospital cardiac arrest according to bystander CPR. Am J Emerg Med 2020; 38:1760-1766. [DOI: 10.1016/j.ajem.2020.05.108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 04/22/2020] [Accepted: 05/27/2020] [Indexed: 12/30/2022] Open
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Out of hospital cardiac arrest, there’s an app for that. Resuscitation 2020; 152:199-200. [DOI: 10.1016/j.resuscitation.2020.01.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 01/18/2020] [Indexed: 11/19/2022]
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Sagisaka R, Nakagawa K, Kayanuma M, Tanaka S, Takahashi H, Komine T, Tanaka H. Sustaining improvement of dispatcher-assisted cardiopulmonary resuscitation for out-of-hospital cardiac arrest patients in Japan: An observational study. Resusc Plus 2020; 3:100013. [PMID: 34223297 PMCID: PMC8244355 DOI: 10.1016/j.resplu.2020.100013] [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: 03/27/2020] [Revised: 05/25/2020] [Accepted: 06/12/2020] [Indexed: 11/28/2022] Open
Abstract
Objectives We aimed to estimate the relationship between the promotion of bystander cardiopulmonary resuscitation (CPR) with dispatcher-assistance over time and good cerebral function after out-of-hospital cardiac arrests (OHCAs). Methods This was a retrospective observational study, using a nationwide OHCA database in Japan. The eligible 267,193 witnessed cardiogenic OHCA patients between 2005 and 2016 were analysed. Multivariable logistic regression models were performed to estimate the effect of dispatcher-assisted bystander CPR per year. In addition, we calculated the number of patients with good cerebral function, which was attributed to dispatcher-assisted bystander CPR. Results Dispatcher-assisted bystander CPR was performed to 84,076 (31.5%), those without dispatcher-assistance were 48,389 (18.1%), and non-bystander CPR were 134,728 (50.4%). The adjusted odds ratio (AOR) of dispatcher-assisted bystander CPR vs. non-bystander CPR was significantly related to good cerebral function, regardless of the year (AOR, 1.47, 1.62; 95%CI, 1.19-1.80, 1.42-1.85, 2005 and 2016, respectively). The association of dispatcher-assisted bystander CPR with good cerebral function tended to increase (AOR, 1.11, 2.97; 95%CI, 0.99-1.24, 2.69-3.28, 2006 and 2016, based on 2005, respectively). Estimating the number of patients with good cerebral function who attributed to dispatcher-assisted bystander CPR was a significant increase from 41 in 2005 to 580 in 2016 (p < .0001, r = 0.98). Furthermore, chest compression consistently contributed to higher number of patients with good cerebral function than that with a combination of chest compression and shock with public-access-defibrillation. Conclusion We found that the increased dispatcher-assisted bystander CPR rate was related to good cerebral function at 1-month post OHCA. Chest compression without public-access-defibrillation was most helpful to that number, explaining the effects of dispatcher-assistance and sustaining improvement.
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Affiliation(s)
- R Sagisaka
- Department of Integrated Science and Engineering for Sustainable Society, Chuo University, Toyo, Japan.,Research and Development Initiative, Chuo University, Tokyo, Japan.,Research Institute of Disaster Management and Emergency Medical System, Kokushikan University, Tokyo, Japan
| | - K Nakagawa
- Graduate School of Emergency Medical System, Kokushikan University, Tokyo, Japan
| | - M Kayanuma
- Graduate School of Emergency Medical System, Kokushikan University, Tokyo, Japan.,Fujugoko Fire Department, Yamanashi, Japan
| | - S Tanaka
- Research Institute of Disaster Management and Emergency Medical System, Kokushikan University, Tokyo, Japan.,Tokai University School of Medicine, Kanagawa, Japan
| | - H Takahashi
- Graduate School of Emergency Medical System, Kokushikan University, Tokyo, Japan.,Department of Sports Medicine and Science, Kokushikan University, Tokyo, Japan
| | - T Komine
- Department of Integrated Science and Engineering for Sustainable Society, Chuo University, Toyo, Japan.,Research and Development Initiative, Chuo University, Tokyo, Japan
| | - H Tanaka
- Research Institute of Disaster Management and Emergency Medical System, Kokushikan University, Tokyo, Japan.,Graduate School of Emergency Medical System, Kokushikan University, Tokyo, Japan.,Department of Sports Medicine and Science, Kokushikan University, Tokyo, Japan
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20
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Sinden S, Heidet M, Scheuermeyer F, Kawano T, Helmer JS, Christenson J, Grunau B. The association of scene-access delay and survival with favourable neurological status in patients with out-of-hospital cardiac arrest. Resuscitation 2020; 155:211-218. [PMID: 32522699 DOI: 10.1016/j.resuscitation.2020.05.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/21/2020] [Accepted: 05/29/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND Rapid emergency medical service (EMS) response after out-of-hospital cardiac arrest (OHCA) is a major determinant of survival, however this is typically measured until EMS vehicle arrival. We sought to investigate whether the interval from EMS vehicle arrival to patient attendance (curb-to-care interval [CTC]) was associated with patient outcomes. METHODS We performed a secondary analysis of the "CCC Trial" dataset, which includes EMS-treated adult non-traumatic OHCA. We fit an adjusted logistic regression model to estimate the association between CTC interval (divided into quartiles) and the primary outcome (survival with favourable neurologic status at hospital discharge; mRS ≤ 3). We described the CTC interval distribution among enrolling clusters. RESULTS We included 24,685 patients: median age was 68 (IQR 56-81), 23% had initial shockable rhythms, and 7.6% survived with favourable neurological status. Compared to the first quartile (≤62 s), longer CTC quartiles (63-115, 116-180, and ≥181 s) demonstrated the following associations with survival with favourable neurological status: adjusted odds ratios 0.95, 95% CI 0.83-1.09; 0.77, 95% CI 0.66-0.89; 0.66, 95% CI 0.56-0.77, respectively. Of the 49 study clusters, median CTC intervals ranged from 86 (IQR 58-130) to 179 s (IQR 112-256). CONCLUSION A lower CTC interval was associated with improved patient outcomes. These results demonstrate a wide range of access metrics within North America, and provide a rationale to create protocols to mitigate access obstacles. A 2-min CTC threshold may represent an appropriate target for quality improvement.
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Affiliation(s)
- Sean Sinden
- Centre for Health Evaluation and Outcome Sciences, St. Paul's Hospital, Vancouver, British Columbia, Canada
| | - Matthieu Heidet
- Assistance Publique-Hôpitaux de Paris (AP-HP), SAMU 94 and Emergency Department, University Hospital Henri Mondor, Créteil, France; University Paris-Est Créteil (UPEC), EA-4390 (ARCHeS), Créteil, France; Department of Emergency Medicine, University of British Columbia, British Columbia, Canada
| | - Frank Scheuermeyer
- Centre for Health Evaluation and Outcome Sciences, St. Paul's Hospital, Vancouver, British Columbia, Canada; Department of Emergency Medicine, University of British Columbia, British Columbia, Canada; St. Paul's Hospital, Vancouver, British Columbia, Canada
| | - Takahisa Kawano
- Department of Emergency Medicine, University of Fukui Hospital, Fukui Prefecture, Japan
| | - Jennie S Helmer
- BC Emergency Health Services, Vancouver, British Columbia, Canada
| | - Jim Christenson
- Centre for Health Evaluation and Outcome Sciences, St. Paul's Hospital, Vancouver, British Columbia, Canada; Department of Emergency Medicine, University of British Columbia, British Columbia, Canada; St. Paul's Hospital, Vancouver, British Columbia, Canada
| | - Brian Grunau
- Centre for Health Evaluation and Outcome Sciences, St. Paul's Hospital, Vancouver, British Columbia, Canada; Department of Emergency Medicine, University of British Columbia, British Columbia, Canada; St. Paul's Hospital, Vancouver, British Columbia, Canada; BC Emergency Health Services, Vancouver, British Columbia, Canada.
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Does second EMS unit response time affect outcomes of OHCA in multi-tiered system? A nationwide observational study. Am J Emerg Med 2020; 42:161-167. [PMID: 32111405 DOI: 10.1016/j.ajem.2020.02.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 02/13/2020] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVES The time dependence of a multi-tier response for out-of-hospital cardiac arrest (OHCA) is unclear. The aim of this study was to evaluate the time-dependent effect of EMS response type in a multi-tiered system on the clinical outcomes of OHCA. METHODS Adult EMS-treated OHCA of presumed cardiac etiology who were not witnessed by EMS between January 2015 and December 2017 were included. The main exposure was EMS response type: single-tier response, early multi-tier response (0-18 min from call to second EMS arrival), and late multi-tier response (19 min from call to second EMS arrival). The primary outcome was good neurologic recovery at the time of discharge from the hospital. Multivariate logistic regression analysis was performed, adjusting for patient-community and prehospital variables. RESULTS Among 54,436 patients, 29,995 patients (55.1%), 21,552 patients (39.6%), and 2889 patients (5.3%) were treated by single-tiered EMS, early multi-tiered EMS, and late multi-tiered EMS, respectively. Good neurological recovery and survival to discharge were more frequent in the early multi-tiered response group (6.4% and 9.7%) than in the single-tiered response group (4.8% and 7.5%) or late multi-tiered response group (3.1% and 5.8%). Compared to the single-tiered response group, the early multi-tiered response group was more likely to have good neurological recovery (adjusted OR, 95% CI: 1.15 [1.06-1.26]), but the late multi-tiered response group was less likely to have good neurological recovery (adjusted OR, 95% CI: 0.76 [0.61-0.96]). CONCLUSION In our basic to intermediate-tiered EMS system, early multi-tier response was associated with improved survival and good neurological recovery.
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Kim JH, Ryoo HW, Kim JY, Ahn JY, Moon S, Lee DE, Mun YH. Application of a Dual-Dispatch System for Out-of-Hospital Cardiac Arrest Patients: Will More Hands Save More Lives? J Korean Med Sci 2019; 34:e141. [PMID: 31456379 PMCID: PMC6717243 DOI: 10.3346/jkms.2019.34.e141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 04/30/2019] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Recovery after out-of-hospital cardiac arrest (OHCA) is difficult, and emergency medical services (EMS) systems apply various strategies to improve outcomes. Multi-dispatch is one means of providing high-quality cardiopulmonary resuscitation (CPR), but no definitive best-operation guidelines are available. We assessed the effects of a basic life support (BLS)-based dual-dispatch system for OHCA. METHODS This prospective observational study of 898 enrolled OHCA patients, conducted in Daegu, Korea from March 1, 2015 to June 30, 2016, involved patients > 18 years old with suspected cardiac etiology OHCA. In Daegu, EMS started a BLS-based dual-dispatch system in March 2015, for cases of cardiac arrest recognition by a dispatch center. We assessed the association between dual-dispatch and OHCA outcomes using multivariate logistic regressions. We also analyzed the effect of dual-dispatch according to the stratified on-scene time. RESULTS Of 898 OHCA patients (median, 69.0 years; 65.5% men), dual-dispatch was applied in 480 (53.5%) patients. There was no difference between the single-dispatch group (SDG) and the dual-dispatch group (DDG) in survival at discharge and neurological outcomes (survival discharge, P = 0.176; neurological outcomes, P = 0.345). In the case of less than 10 minutes of on-scene time, the adjusted odds ratio was 1.749 (95% confidence interval [CI], 0.490-6.246) for survival discharge and 6.058 (95% CI, 1.346-27.277) for favorable neurological outcomes in the DDG compared with the SDG. CONCLUSION Dual-dispatch was not associated with better OHCA outcomes for the entire study population, but showed favorable neurological outcomes when the on-scene time was less than 10 minutes.
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Affiliation(s)
- Jung Ho Kim
- Department of Emergency Medicine, Yeungnam University Hospital, Yeungnam University College of Medicine, Daegu, Korea
| | - Hyun Wook Ryoo
- Department of Emergency Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea.
| | - Jong Yeon Kim
- Department of Preventive Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
| | - Jae Yun Ahn
- Department of Emergency Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Sungbae Moon
- Department of Emergency Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Dong Eun Lee
- Department of Emergency Medicine, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - You Ho Mun
- Department of Emergency Medicine, Yeungnam University Hospital, Yeungnam University College of Medicine, Daegu, Korea
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Lee DW, Moon HJ, Heo NH. Association between ambulance response time and neurologic outcome in patients with cardiac arrest. Am J Emerg Med 2019; 37:1999-2003. [PMID: 30795948 DOI: 10.1016/j.ajem.2019.02.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 02/12/2019] [Accepted: 02/14/2019] [Indexed: 11/29/2022] Open
Abstract
PURPOSE Emergency medical services (EMS) response time is one of prehospital factors associated with survival rate of patients with out-of-hospital cardiac arrest (OHCA). The objective of this study was to determine whether short EMS response time was associated with improved neurologic outcome of patients with OHCA through prospective analysis. METHODS We performed a prospective observational analysis of collected data from KoCARC registry between October 2015 and December 2016. OHCA patients aged 18 years or older with presumed cardiac etiology by emergency physicians in emergency department were included in this study. RESULTS Of 3187 cardiac arrest patients enrolled in the KoCARC registry, 2309 patients were included in the final analysis. Response time threshold was 11.5 min for prehospital return of spontaneous circulation and 7.5 min for survival to discharge and favorable neurologic outcome. Patients in the ≤7.5 min response time group showed increased odds of survival to discharge (OR: 1.54, 95% CI: 1.13-2.10, p = .006) and favorable neurologic recovery (OR: 2.01, 95% CI: 1.36-2.99, p = .001). When response time was decreased by 1 min, all outcomes were improved (survival to discharge, OR: 1.08; 95% CI: 1.04-1.12, p < .001; favorable neurological outcome, OR: 1.14, 95% CI: 1.07-1.21, p < .001). CONCLUSION We found that shorter EMS response time could lead to favorable neurologic outcome in patients with OHCA of presumed cardiac origin. EMS response time threshold associated with improved favorable outcome was ≤7.5 min.
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Affiliation(s)
- Dong Wook Lee
- Department of Emergency Medicine, College of Medicine, Soonchunhyang University, Republic of Korea
| | - Hyung Jun Moon
- Department of Emergency Medicine, College of Medicine, Soonchunhyang University, Republic of Korea.
| | - Nam Hun Heo
- Clinical Trial Center, Soonchunhyang University Cheonan Hospital, Republic of Korea
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Cabral ELDS, Castro WRS, Florentino DRDM, Viana DDA, Costa Junior JFD, Souza RPD, Rêgo ACM, Araújo-Filho I, Medeiros AC. Response time in the emergency services. Systematic review. Acta Cir Bras 2019; 33:1110-1121. [PMID: 30624517 DOI: 10.1590/s0102-865020180120000009] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 11/03/2018] [Indexed: 11/22/2022] Open
Abstract
The growth of the urban population raises concern about municipal public managers in the sense of providing emergency medical services (EMS) that are aligned with the needs of prehospital emergency medical care demanded by the population. The literature review aims at presenting the response time of emergency medical services in several parts of the world and discussing some factors that interfere in the result of this indicator such as GDP (Gross Domestic Product) percentage spent on health and life expectancy of countries. The study will also show that in some of the consulted articles, authors suggest to EMS recommendations for decreasing the response time using simulations, heuristics and metaheuristics. Response time is a basic indicator of emergency medical services, in such a way that researchers use the descriptive statistics to evaluate this parameter. Europe and the USA outstand in the publication of studies that present this information. Some articles use stochastic and mathematical methods to suggest models that simulate scenarios of response time reduction and suggest such proposals to the local EMS. Countries in which the response time was identified have a high index of human development and life expectancy between 74.7 and 83.7 years.
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Affiliation(s)
- Eric Lucas Dos Santos Cabral
- Fellow Master degree, Postgraduate Program in Production Engineering, Universidade Federal do Rio Grande do Norte (UFRN), Natal-RN, Brazil. Acquisition, interpretation and analysis of data; manuscript writing
| | - Wilkson Ricardo Silva Castro
- Fellow Master degree, Postgraduate Program in Production Engineering, Universidade Federal do Rio Grande do Norte (UFRN), Natal-RN, Brazil. Acquisition, interpretation and analysis of data; manuscript writing
| | - Davidson Rogério de Medeiros Florentino
- Fellow Master degree, Postgraduate Program in Production Engineering, Universidade Federal do Rio Grande do Norte (UFRN), Natal-RN, Brazil. Acquisition, interpretation and analysis of data; manuscript writing
| | - Danylo de Araújo Viana
- Fellow Master degree, Postgraduate Program in Production Engineering, Universidade Federal do Rio Grande do Norte (UFRN), Natal-RN, Brazil. Acquisition, interpretation and analysis of data; manuscript writing
| | - João Florêncio da Costa Junior
- Fellow Master degree, Postgraduate Program in Production Engineering, Universidade Federal do Rio Grande do Norte (UFRN), Natal-RN, Brazil. Acquisition, interpretation and analysis of data; manuscript writing
| | - Ricardo Pires de Souza
- Fellow Master degree, Postgraduate Program in Production Engineering, UFRN, Natal-RN, Brazil. Acquisition, interpretation and analysis of data; critical revision
| | - Amália Cinthia Meneses Rêgo
- PhD, Health Sciences, Natal-RN, Brazil. Design of the study, interpretation and analysis of data, manuscript writing, critical revision
| | - Irami Araújo-Filho
- Full Professor, Department of Surgery, UFRN and Universidade Potiguar (UnP), Natal-RN, Brazil. Design of the study, interpretation and analysis of data, manuscript writing, critical revision
| | - Aldo Cunha Medeiros
- PhD, Full Professor, Department of Surgery, UFRN, Natal-RN, Brazil. Design of the study, interpretation and analysis of data, manuscript writing, critical revision
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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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Kim KH, Shin SD, Song KJ, Ro YS, Kim YJ, Hong KJ, Jeong J. Scene time interval and good neurological recovery in out-of-hospital cardiac arrest. Am J Emerg Med 2017; 35:1682-1690. [DOI: 10.1016/j.ajem.2017.05.049] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 05/18/2017] [Accepted: 05/28/2017] [Indexed: 10/19/2022] Open
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Kim YT, Shin SD, Hong SO, Ahn KO, Ro YS, Song KJ, Hong KJ. Effect of national implementation of utstein recommendation from the global resuscitation alliance on ten steps to improve outcomes from Out-of-Hospital cardiac arrest: a ten-year observational study in Korea. BMJ Open 2017; 7:e016925. [PMID: 28827263 PMCID: PMC5724141 DOI: 10.1136/bmjopen-2017-016925] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVES The Utstein ten-step implementation strategy (UTIS) proposed by the Global Resuscitation Alliance, a bundle of community cardiopulmonary resuscitation (CPR) programs to improve outcomes after out-of-hospital cardiac arrests (OHCAs), has been developed. However, it is not documented whether UTIS programs are associated with better outcomes or not. The study aimed to test the association between the UTIS programme and better outcomes after OHCA. METHODS The study was a before- and after-intervention study. Adults OHCAs treated by emergency medical service (EMS) from 2006 to 2015 in Korea were collected, excluding patients witnessed by ambulance personnel and without outcomes. Phase 1 (2009-2011) after implementing three programs (national OHCA registry, obligatory CPR education, and public report of OHCA outcomes), and phase 2 (2012-2015) after implementing two programs (telephone-assisted CPR and EMS quality assurance programme) were compared with the control period (2006-2008) when no UTIS programme were implemented. The primary outcome was good neurological recovery (cerebral performance scale 1 or 2). We tested the association between the phases and outcomes, adjusting for confounders using a multivariate logistic regression model to calculate adjusted odds ratios (AORs) with 95% confidence intervals (CIs). RESULTS A total of 1 28 888 eligible patients were analysed. The control, phase 1, and phase two study groups were 19.4%, 30.5%, and 50.0% of the whole, respectively. There were significant changes in pre-hospital ROSC (0.8% in 2006 and 7.1% in 2015), survival to discharge (3.0% in 2006 and 6.1% in 2015), and good neurological recovery (1.2% in 2006 and 4.1% in 2015). The AORs (95% CIs) for good neurological recovery were 1.82 (1.53-2.15) or phase 1 and 2.21 (1.78-2.75) for phase two compared with control phase. CONCLUSION The national implementation of the five UTIS programs was significantly associated with better OHCA outcomes in Korea.
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Affiliation(s)
- Young Taek Kim
- Division of Chronic Disease Management, Korea Centers for Disease Control and Prevention, Cheongju, Korea
| | - Sang Do Shin
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sung Ok Hong
- Division of Chronic Disease Management, Korea Centers for Disease Control and Prevention, Cheongju, Korea
| | - Ki Ok Ahn
- Department of Emergency Medicine, Myongji Hospital, Goyang, Korea
| | - Young Sun Ro
- Laboratory of Emergency Medical Services, Seoul National University Hospital, Seoul, Korea
| | - Kyoung Jun Song
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Ki Jeong Hong
- Department of Emergency Medicine, Seoul National University Boramae Medical Center, Seoul, Korea
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Tsai SL, Chaou CH, Huang CH, Tzeng IS, Kuo CW, Weng YM, Chien CY. Features of hospital and emergency medical service in out-of-hospital cardiac arrest patients with shockable rhythm. Am J Emerg Med 2017; 35:1222-1227. [PMID: 28341188 DOI: 10.1016/j.ajem.2017.03.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 03/07/2017] [Accepted: 03/15/2017] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Predicting the outcome of out-of-hospital cardiac arrest (OHCA) patients is crucial. We examined hospital characteristics and parameters of emergency medical service (including scene time interval and direct ambulance delivery to intensive heart hospitals) as survival or outcome predictors. STUDY DESIGN Data from 546 consecutive OHCA shockable patients treated between January 2012 and December 2015 in Taoyuan City (Taiwan, ROC) were collected. In addition to demographic data, location of arrest, initial rhythm, availability of a hospital with or without 24/7 percutaneous coronary intervention (PCI), emergency medical service (EMS) time, provision of cardiopulmonary resuscitation by a bystander, presence of a witness at collapse, and level of life support were analysed. RESULTS Multivariate analysis showed that hospitalisation with immediate PCI availability was an independent predictor (OR: 4.32; 95% CI: 1.27-14.70) solely for the outcome of survival until discharge. The presence of a witness while collapsing (OR: 3.52; 95% CI: 1.03-11.98), EMS response time (OR: 0.83; 95% CI: 0.70-0.98), and scene time interval (STI; OR: 0.89; 95% CI: 0.81-0.99) were valuable for predicting the neurological outcome. CONCLUSIONS Direct ambulance delivery to intensive heart hospitals that had 24/7 PCI availability was associated with a higher probability of surviving until discharge in OHCA patients with shockable rhythms. Similarly, a witnessed collapse was correlated with being discharged alive from hospital and recovering with good cerebral performance. In addition, longer response time and scene time interval indicated poorer survival and neurological outcome.
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Affiliation(s)
- Shang-Li Tsai
- Department of Emergency Medicine, Linkou Chang Gung Memorial Hospital, 5 Fuxing Street, Guishan District, Taoyuan 333, Taiwan
| | - Chung-Hsien Chaou
- Chang Gung University College of Medicine, 259 Wen-Hwa 1st Road, Guishan District, Taoyuan 333, Taiwan; Department of Emergency Medicine and Medical Education, Taipei Chang Gung Memorial Hospital, 199 Tunghwa Road, Taipei 105, Taiwan
| | - Chien-Hsiung Huang
- Department of Emergency Medicine, Keelung Chang Gung Memorial Hospital, 222 Maijin Rd, Anle District, Keelung 204, Taiwan
| | - I-Shiang Tzeng
- Institute of Epidemiology and Preventive Medicine, National Taiwan University, Room 501, 17 Xu-Zhou Road, Taipei 100, Taiwan
| | - Chan-Wei Kuo
- Department of Emergency Medicine, Linkou Chang Gung Memorial Hospital, 5 Fuxing Street, Guishan District, Taoyuan 333, Taiwan
| | - Yi-Ming Weng
- Department of Emergency Medicine, Linkou Chang Gung Memorial Hospital, 5 Fuxing Street, Guishan District, Taoyuan 333, Taiwan
| | - Cheng-Yu Chien
- Department of Emergency Medicine, Linkou Chang Gung Memorial Hospital, 5 Fuxing Street, Guishan District, Taoyuan 333, Taiwan; Department of Emergency Medicine, Keelung Chang Gung Memorial Hospital, 222 Maijin Rd, Anle District, Keelung 204, Taiwan.
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Becker TK, Bernhard M, Böttiger BW, Rittenberger JC, Epitropoulos MFG, Becker SL. Bystander Cardiopulmonary Resuscitation: A Civic Duty. THE AMERICAN JOURNAL OF BIOETHICS : AJOB 2017; 17:51-53. [PMID: 28112624 DOI: 10.1080/15265161.2016.1265173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
| | | | | | | | | | - Sören L Becker
- e Swiss Tropical and Public Health Institute, University of Basel, and Saarland University
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