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Wang SA, Chang CJ, Do Shin S, Chu SE, Huang CY, Hsu LM, Lin HY, Hong KJ, Jamaluddin SF, Son DN, Ramakrishnan TV, Chiang WC, Sun JT, Huei-Ming Ma M. Development of a prediction model for emergency medical service witnessed traumatic out-of-hospital cardiac arrest: A multicenter cohort study. J Formos Med Assoc 2024; 123:23-35. [PMID: 37573159 DOI: 10.1016/j.jfma.2023.07.011] [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: 02/02/2023] [Revised: 06/04/2023] [Accepted: 07/17/2023] [Indexed: 08/14/2023] Open
Abstract
BACKGROUND/PURPOSE To develop a prediction model for emergency medical technicians (EMTs) to identify trauma patients at high risk of deterioration to emergency medical service (EMS)-witnessed traumatic cardiac arrest (TCA) on the scene or en route. METHODS We developed a prediction model using the classical cross-validation method from the Pan-Asia Trauma Outcomes Study (PATOS) database from 1 January 2015 to 31 December 2020. Eligible patients aged ≥18 years were transported to the hospital by the EMS. The primary outcome (EMS-witnessed TCA) was defined based on changes in vital signs measured on the scene or en route. We included variables that were immediately measurable as potential predictors when EMTs arrived. An integer point value system was built using multivariable logistic regression. The area under the receiver operating characteristic (AUROC) curve and Hosmer-Lemeshow (HL) test were used to examine discrimination and calibration in the derivation and validation cohorts. RESULTS In total, 74,844 patients were eligible for database review. The model comprised five prehospital predictors: age <40 years, systolic blood pressure <100 mmHg, respiration rate >20/minute, pulse oximetry <94%, and levels of consciousness to pain or unresponsiveness. The AUROC in the derivation and validation cohorts was 0.767 and 0.782, respectively. The HL test revealed good calibration of the model (p = 0.906). CONCLUSION We established a prediction model using variables from the PATOS database and measured them immediately after EMS personnel arrived to predict EMS-witnessed TCA. The model allows prehospital medical personnel to focus on high-risk patients and promptly administer optimal treatment.
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Affiliation(s)
- Shao-An Wang
- Department of Emergency Medicine, Far Eastern Memorial Hospital, No. 21, Sec. 2, Nan Ya South Rd, Banqiao Dist, New Taipei City, Taiwan
| | - Chih-Jung Chang
- Department of Emergency Medicine, Far Eastern Memorial Hospital, No. 21, Sec. 2, Nan Ya South Rd, Banqiao Dist, New Taipei City, Taiwan
| | - Shan Do Shin
- Department of Emergency Medicine, Seoul National University College of Medicine and Hospital, Seoul, South Korea
| | - Sheng-En Chu
- Department of Emergency Medicine, Far Eastern Memorial Hospital, No. 21, Sec. 2, Nan Ya South Rd, Banqiao Dist, New Taipei City, Taiwan
| | - Chun-Yen Huang
- Department of Emergency Medicine, Far Eastern Memorial Hospital, No. 21, Sec. 2, Nan Ya South Rd, Banqiao Dist, New Taipei City, Taiwan
| | - Li-Min Hsu
- Department of Traumatology and Critical Care, National Taiwan University Hospital, Taipei, Taiwan
| | - Hao-Yang Lin
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Ki Jeong Hong
- Department of Emergency Medicine, Seoul National University College of Medicine and Hospital, Seoul, South Korea
| | | | - Do Ngoc Son
- Center for Emergency Medicine, Bach Mai Hospital, Hanoi, Viet Nam
| | - T V Ramakrishnan
- Emergency Medicine, Sri Ramachandra Medical College, Chennai, India
| | - Wen-Chu Chiang
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan; Department of Emergency Medicine, National Taiwan University Hospital, Yun-Lin Branch, Taipei, Taiwan.
| | - Jen-Tang Sun
- Department of Emergency Medicine, Far Eastern Memorial Hospital, No. 21, Sec. 2, Nan Ya South Rd, Banqiao Dist, New Taipei City, Taiwan; Department of Nursing, Cardinal Tien Junior College of Healthcare and Management, Yilan, Taiwan.
| | - Matthew Huei-Ming Ma
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan; Department of Emergency Medicine, National Taiwan University Hospital, Yun-Lin Branch, Taipei, Taiwan
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Wolthers SA, Breindahl N, Jensen TW, Holgersen MG, Møller TP, Blomberg SNF, Andersen LB, Mikkelsen S, Steinmetz J, Christensen HC. Prehospital interventions and outcomes in traumatic cardiac arrest: a population-based cohort study using the Danish Helicopter Emergency Medical Services data. Eur J Emerg Med 2023:00063110-990000000-00106. [PMID: 38100645 DOI: 10.1097/mej.0000000000001108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
BACKGROUND AND IMPORTANCE Traumatic cardiac arrest is associated with poor prognosis, and timely evidence-based treatment is paramount for increasing survival rates. Physician-staffed helicopter emergency medical service use in major trauma has demonstrated improved outcomes. However, the sparsity of data highlights the necessity for a comprehensive understanding of the epidemiology of traumatic cardiac arrest. OBJECTIVES The primary objective of the present study was to evaluate survival and return of spontaneous circulation (ROSC) and to investigate the characteristics of patients with traumatic cardiac arrest assessed by the Danish HEMS. DESIGN This was a population-based cohort study based on data from the Danish helicopter emergency medical service database. SETTINGS AND PARTICIPANTS The study included all patients assessed by the Danish helicopter emergency medical services between 2016 and 2021. OUTCOME MEASURES AND ANALYSIS Data were analysed using descriptive statistics, non-parametric testing and logistic regression analyses. Descriptive analysis of prehospital interventions included cardiopulmonary resuscitation, defibrillation, airway management, administration of blood products, and thoracic decompression. The primary outcome was 30-day survival, and the key secondary outcome was prehospital ROSC. MAIN RESULTS A total of 223 patients with TCA were included. The median age was 54 years (IQR 34-68), and the majority were males. Overall, 23% of patients achieved prehospital ROSC, and the 30-day survival rate was 4%. Factors associated with an increased likelihood of ROSC were an initial shockable cardiac rhythm, odds ratio (OR) of 3.78 (95% CI 1.33-11.00) and endotracheal intubation, OR 7.10 (95% CI 2.55-22.85). CONCLUSION This study highlights the low survival rates observed among patients with traumatic cardiac arrest assessed by helicopter emergency medical services. The findings support the positive impact of an initial shockable cardiac rhythm and endotracheal intubation in improving the likelihood of ROSC. The study contributes to the limited literature on traumatic cardiac arrests assessed by physician-staffed helicopter emergency services. Finally, the findings emphasise the need for further research to understand and improve outcomes in this subgroup of cardiac arrest.
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Affiliation(s)
- Signe Amalie Wolthers
- Prehospital Center, Region Zealand, Næstved
- Department of Clinical Medicine, University of Copenhagen
| | - Niklas Breindahl
- Prehospital Center, Region Zealand, Næstved
- Department of Clinical Medicine, University of Copenhagen
- Department of Neonatal and Paediatric Intensive Care, Copenhagen University Hospital, Rigshospitalet, Copenhagen
| | - Theo Walther Jensen
- Prehospital Center, Region Zealand, Næstved
- Department of Anaesthesiology and Intensive care Medicine, Copenhagen University Hospital, Herlev
| | - Mathias Geldermann Holgersen
- Department of Clinical Medicine, University of Copenhagen
- Paediatric Pulmonary Service, Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen
| | - Thea Palsgaard Møller
- Prehospital Center, Region Zealand, Næstved
- Department of Anesthesiology and Intensive Care Medicine, Holbæk hospital, Region Zealand
| | | | | | - Søren Mikkelsen
- Prehospital Research Unit, Department of Anaesthesiology and Intensive Care, Odense University Hospital, Odense
| | - Jacob Steinmetz
- Department of Anaesthesia and Trauma Centre, Centre of Head and Orthopaedics, Copenhagen University Hospital, Rigshospitalet, Copenhagen
- Danish Air Ambulance
- Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Helle Collatz Christensen
- Prehospital Center, Region Zealand, Næstved
- Department of Clinical Medicine, University of Copenhagen
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Lugnet V, McDonough M, Gordon L, Galindez M, Mena Reyes N, Sheets A, Zafren K, Paal P. Termination of Cardiopulmonary Resuscitation in Mountain Rescue: A Scoping Review and ICAR MedCom 2023 Recommendations. High Alt Med Biol 2023; 24:274-286. [PMID: 37733297 DOI: 10.1089/ham.2023.0068] [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] [Indexed: 09/22/2023] Open
Abstract
Lugnet, Viktor, Miles McDonough, Les Gordon, Mercedes Galindez, Nicolas Mena Reyes, Alison Sheets, Ken Zafren, and Peter Paal. Termination of cardiopulmonary resuscitation in mountain rescue: a scoping review and ICAR MedCom 2023 recommendations. High Alt Med Biol. 24:274-286, 2023. Background: In 2012, the International Commission for Mountain Emergency Medicine (ICAR MedCom) published recommendations for termination of cardiopulmonary resuscitation (CPR) in mountain rescue. New developments have necessitated an update. This is the 2023 update for termination of CPR in mountain rescue. Methods: For this scoping review, we searched the PubMed and Cochrane libraries, updated the recommendations, and obtained consensus approval within the writing group and the ICAR MedCom. Results: We screened a total of 9,102 articles, of which 120 articles met the inclusion criteria. We developed 17 recommendations graded according to the strength of recommendation and level of evidence. Conclusions: Most of the recommendations from 2012 are still valid. We made minor changes regarding the safety of rescuers and responses to primary or traumatic cardiac arrest. The criteria for termination of CPR remain unchanged. The principal changes include updated recommendations for mechanical chest compression, point of care ultrasound (POCUS), extracorporeal life support (ECLS) for hypothermia, the effects of water temperature in drowning, and the use of burial times in avalanche rescue.
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Affiliation(s)
- Viktor Lugnet
- International Commission for Mountain Emergency Medicine (ICAR MedCom), Kloten, Switzerland
- Department of Anesthesiology and Intensive Care, Östersund Hospital, Östersund, Sweden
- Swedish Mountain Guides Association (SBO), Gällivare, Sweden
| | - Miles McDonough
- International Commission for Mountain Emergency Medicine (ICAR MedCom), Kloten, Switzerland
- Department of Emergency Medicine, UCSF Fresno, Fresno, California, USA
| | - Les Gordon
- International Commission for Mountain Emergency Medicine (ICAR MedCom), Kloten, Switzerland
- Langdale Ambleside Mountain Rescue Team, Ambleside, United Kingdom
- Department of Anaesthesia, University Hospitals of Morecambe Bay Trust, Lancaster, United Kingdom
| | - Mercedes Galindez
- International Commission for Mountain Emergency Medicine (ICAR MedCom), Kloten, Switzerland
- Department of Internal Medicine, Hospital Zonal Ramón Carrillo, San Carlos de Bariloche, Argentina
- Comisión de Auxilio Club Andino Bariloche, San Carlos de Bariloche, Argentina
| | - Nicolas Mena Reyes
- International Commission for Mountain Emergency Medicine (ICAR MedCom), Kloten, Switzerland
- Department of Emergency Medicine, Sótero del Río Hospital, Santiago de Chile, Chile
- Grupo de Rescate Médico en Montaña (GREMM), Santiago, Chile
- Emegency Medicine Section, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alison Sheets
- International Commission for Mountain Emergency Medicine (ICAR MedCom), Kloten, Switzerland
- Emergency Medicine, Boulder Community Health, Boulder, Colorado, USA
- Wilderness Medicine Section, University of Colorado Health Sciences Center, Aurora, Colorado, USA
| | - Ken Zafren
- International Commission for Mountain Emergency Medicine (ICAR MedCom), Kloten, Switzerland
- Himalayan Rescue Association, Kathmandu, Nepal
- Department of Emergency Medicine, Stanford University Medical Center, Stanford, California, USA
- Alaska Native Medical Center, Anchorage, Alaska, USA
| | - Peter Paal
- International Commission for Mountain Emergency Medicine (ICAR MedCom), Kloten, Switzerland
- Department of Anaesthesiology and Intensive Care Medicine, St. John of God Hospital, Paracelsus Medical University, Salzburg, Austria
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Lee MHM, Chia MYC, Fook-Chong S, Shahidah N, Tagami T, Ryu HH, Lin CH, Karim SA, Jirapong S, Rao HVR, Cai W, Velasco BP, Khan NU, Son DN, Naroo GY, El Sayed M, Ong MEH. Characteristics and Outcomes of Traumatic Cardiac Arrests in the Pan-Asian Resuscitation Outcomes Study. PREHOSP EMERG CARE 2022; 27:978-986. [PMID: 35994382 DOI: 10.1080/10903127.2022.2113941] [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: 04/11/2022] [Accepted: 08/02/2022] [Indexed: 10/15/2022]
Abstract
OBJECTIVE Little is known about survival outcomes after traumatic cardiac arrest in Asia, or the association of Utstein factors with survival after traumatic cardiac arrests. This study aimed to describe the epidemiology and outcomes of traumatic cardiac arrests in Asia, and analyze Utstein factors associated with survival. METHODS Traumatic cardiac arrest patients from 13 countries in the Pan-Asian Resuscitation Outcomes Study registry from 2009 to 2018 were analyzed. Multilevel logistic regression was performed to identify factors associated with the primary outcomes of survival to hospital discharge and favorable neurological outcome (Cerebral Performance Category (CPC) 1-2), and the secondary outcome of return of spontaneous circulation (ROSC). RESULTS There were 207,455 out-of-hospital cardiac arrest cases, of which 13,631 (6.6%) were trauma patients aged 18 years and above with resuscitation attempted and who had survival outcomes reported. The median age was 57 years (interquartile range 39-73), 23.0% received bystander cardiopulmonary resuscitation (CPR), 1750 (12.8%) had ROSC, 461 (3.4%) survived to discharge, and 131 (1.0%) had CPC 1-2. Factors associated with higher rates of survival to discharge and favorable neurological outcome were arrests witnessed by emergency medical services or private ambulances (survival to discharge adjusted odds ratio (aOR) = 2.95, 95% confidence interval (CI) = 1.99-4.38; CPC 1-2 aOR = 2.57, 95% CI = 1.25-5.27), bystander CPR (survival to discharge aOR = 2.16; 95% CI 1.71-2.72; CPC 1-2 aOR = 4.98, 95% CI = 3.27-7.57), and initial shockable rhythm (survival to discharge aOR = 12.00; 95% CI = 6.80-21.17; CPC 1-2 aOR = 33.28, 95% CI = 11.39-97.23) or initial pulseless electrical activity (survival to discharge aOR = 3.98; 95% CI = 2.99-5.30; CPC 1-2 aOR = 5.67, 95% CI = 3.05-10.53) relative to asystole. CONCLUSIONS In traumatic cardiac arrest, early aggressive resuscitation may not be futile and bystander CPR may improve outcomes.
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Affiliation(s)
| | | | - Stephanie Fook-Chong
- Prehospital Emergency & Research Centre, Duke-NUS Medical School, Singapore, Singapore
| | - Nur Shahidah
- Department of Emergency Medicine, Singapore General Hospital, Singapore, Singapore
| | - Takashi Tagami
- Department of Emergency and Critical Care Medicine, Nippon Medical School Tama Nagayama Hospital, Tokyo, Japan
| | - Hyun Ho Ryu
- Department of Emergency Medicine, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Chih-Hao Lin
- Department of Emergency Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Sarah Abdul Karim
- Department of Emergency Medicine, Hospital Sungai Buloh, Selangor, Malaysia
| | | | - H V Rajanarsing Rao
- Emergency Medicine Learning Centre, GVK Emergency Management and Research Institute, Secunderabad, Telangana, India
| | - Wenwei Cai
- Department of Emergency Medicine, Zhejiang Provincial People's Hospital, Zhejiang, China
| | | | - Nadeem Ullah Khan
- Department of Emergency Medicine, Aga Khan University Hospital, Karachi, Pakistan
| | - Do Ngoc Son
- Center for Emergency Medicine, Bach Mai Hospital, Hanoi, Vietnam
| | - G Y Naroo
- ED-Trauma Centre, Rashid Hospital, Dubai, United Arab Emirates
| | - Mazen El Sayed
- Department of Emergency Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Marcus Eng Hock Ong
- Department of Emergency Medicine, Singapore General Hospital, Singapore, Singapore
- Duke-NUS Medical School, Health Services and Systems Research, Singapore, Singapore
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Life Saving Interventions in Resuscitation of the Injured patient. Injury 2022; 53:2387-2388. [PMID: 35717029 DOI: 10.1016/j.injury.2022.05.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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