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KMID : 0385920160270010098
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Journal of the Korean Society of Emergency Medicine
2016 Volume.27 No. 1 p.98 ~ p.106
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Comprehensive Review of Pre-hospital Factors Associated with Field Return of Spontaneous Circulation after Out-of-hospital Cardiac Arrest in One Province
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Jung Sang-Ku
Kang Hui-Dong
O Min-Seok
Song Jae-Seok
Oh Se-Hyun
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Abstract
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Purpose: Return of spontaneous circulation (ROSC) is closely related to a favorable treatment outcome in out-of-hospital cardiac arrest and is also a reliable treatment target in clinical trials. The aim of this study is the identification of major factors affecting field ROSC by analyzing the updated data encompassing the pre-hospital treatment processes.
Method: This is a retrospective review of cardiopulmonary resuscitation (CPR) cases performed by 119 rescuers before hospital arrival from January 2012 to December 2014 in one province. Cases with traumatic cardiac arrest, unnecessary CPR, arrest occurred during transport, under age 14 years, and incomplete medical records were excluded.
Results: Of 1,832 patients enrolled in the study, ROSC was achieved in 99 cases (5.4%). Among them, 50 (50.5%) had ROSC at the event field and others achieved ROSC during the transport process, respectively. Total cases were divided into two groups based on ROSC before arrival at the hospital. Age, underlying cardiovascular illnesses, the event place, presence of a witness, bystander CPR, application of an automated external defibrillator (AED), the initial shockable rhythm, defibrillation, advanced airway, hydration, the arrival time of rescuer CPR, application time of AED, and defibrillation showed significant statistical differences. In multivariate analysis, age, defibrillation, hydration, bystander CPR, and the call-to-rescuer CPR interval appeared to be correlated with field ROSC.
Conclusion: To improve the survival rate through field ROSC, a public campaign to improve bystander CPR, prompt recognition of cardiac arrest, and rapid application of pre-hospital treatment and political support of the public institution are mandatory.
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KEYWORD
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Out-of-hospital cardiac arrest, Cardiopulmonary resuscitation, Emergency medical services
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