Adjusting on-scene CPR duration based on transport time interval in out-of-hospital cardiac arrest: a nationwide multicenter study

Abstract The optimal duration of on-scene cardiopulmonary resuscitation (CPR) for out-of-hospital cardiac arrest (OHCA) patients remains uncertain. Determining this critical time period requires outweighing the potential risks associated with intra-arrest transport while minimizing delays in accessi...

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Main Authors: Daseul Kim, Jae Yong Yu, Minha Kim, Gun Tak Lee, Sang Do Shin, Sung Yeon Hwang, Daun Jeong
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-87757-3
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author Daseul Kim
Jae Yong Yu
Minha Kim
Gun Tak Lee
Sang Do Shin
Sung Yeon Hwang
Daun Jeong
author_facet Daseul Kim
Jae Yong Yu
Minha Kim
Gun Tak Lee
Sang Do Shin
Sung Yeon Hwang
Daun Jeong
author_sort Daseul Kim
collection DOAJ
description Abstract The optimal duration of on-scene cardiopulmonary resuscitation (CPR) for out-of-hospital cardiac arrest (OHCA) patients remains uncertain. Determining this critical time period requires outweighing the potential risks associated with intra-arrest transport while minimizing delays in accessing definitive hospital-based treatments. This study evaluated the association between on-scene CPR duration and 30-day neurologically favorable survival based on the transport time interval (TTI) in patients with OHCA. We retrospectively analyzed data from the Korean Cardiac Arrest Research Consortium registry of OHCA, comprising 65 participating hospitals in South Korea, between October 2015 and December 2021. We categorized the patients into Short-TTI (TTI < 10 min) and Long-TTI (TTI ≥ 10 min) groups. Differences in clinical features were adjusted for using propensity score matching (PSM) for TTI. The primary outcome was a 30-day neurologically favorable outcome, defined as cerebral performance category 1 or 2. Multivariable logistic regression was used to determine the variables associated with clinical outcomes. A generalized additive model based on a restricted cubic spline smooth function was utilized to infer the optimal cutoff point for on-scene CPR duration. Of the 6,345 patients, 5,844 PSM pairings were created (Short-TTI: 2,922; Long-TTI: 2,922). The primary outcome was achieved in 7.4% and 9.8% of the patients in Short-TTI and Long-TTI groups, respectively (p = 0.001). Increased on-scene CPR duration was associated with decreased neurologically favorable survival (adjusted odds ratio, 0.94; 95% confidence interval, 0.92–0.96). The optimal on-scene CPR durations in the overall PSM, Short-TTI, and Long-TTI groups were 5.1, 0, and 5.0 min, respectively. An adjusted on-scene CPR duration based on expected transport duration may be beneficial for favorable clinical outcomes in patients with OHCA.
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spelling doaj-art-a81882f2acb24422b14083c4ff9b63b12025-01-26T12:28:07ZengNature PortfolioScientific Reports2045-23222025-01-0115111410.1038/s41598-025-87757-3Adjusting on-scene CPR duration based on transport time interval in out-of-hospital cardiac arrest: a nationwide multicenter studyDaseul Kim0Jae Yong Yu1Minha Kim2Gun Tak Lee3Sang Do Shin4Sung Yeon Hwang5Daun Jeong6Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of MedicineResearch Institute for Data Science and AI (Artificial Intelligence), Hallym UniversityDepartment of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of MedicineDepartment of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of MedicineDepartment of Emergency Medicine, Seoul National University Hospital, Seoul National University College of MedicineDepartment of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of MedicineDivision of Critical Care Medicine, Department of Emergency Medicine, Chung-Ang University Gwangmyeong HospitalAbstract The optimal duration of on-scene cardiopulmonary resuscitation (CPR) for out-of-hospital cardiac arrest (OHCA) patients remains uncertain. Determining this critical time period requires outweighing the potential risks associated with intra-arrest transport while minimizing delays in accessing definitive hospital-based treatments. This study evaluated the association between on-scene CPR duration and 30-day neurologically favorable survival based on the transport time interval (TTI) in patients with OHCA. We retrospectively analyzed data from the Korean Cardiac Arrest Research Consortium registry of OHCA, comprising 65 participating hospitals in South Korea, between October 2015 and December 2021. We categorized the patients into Short-TTI (TTI < 10 min) and Long-TTI (TTI ≥ 10 min) groups. Differences in clinical features were adjusted for using propensity score matching (PSM) for TTI. The primary outcome was a 30-day neurologically favorable outcome, defined as cerebral performance category 1 or 2. Multivariable logistic regression was used to determine the variables associated with clinical outcomes. A generalized additive model based on a restricted cubic spline smooth function was utilized to infer the optimal cutoff point for on-scene CPR duration. Of the 6,345 patients, 5,844 PSM pairings were created (Short-TTI: 2,922; Long-TTI: 2,922). The primary outcome was achieved in 7.4% and 9.8% of the patients in Short-TTI and Long-TTI groups, respectively (p = 0.001). Increased on-scene CPR duration was associated with decreased neurologically favorable survival (adjusted odds ratio, 0.94; 95% confidence interval, 0.92–0.96). The optimal on-scene CPR durations in the overall PSM, Short-TTI, and Long-TTI groups were 5.1, 0, and 5.0 min, respectively. An adjusted on-scene CPR duration based on expected transport duration may be beneficial for favorable clinical outcomes in patients with OHCA.https://doi.org/10.1038/s41598-025-87757-3Out-of-hospital cardiac arrestCardiopulmonary resuscitationEmergency medical servicesSurvival
spellingShingle Daseul Kim
Jae Yong Yu
Minha Kim
Gun Tak Lee
Sang Do Shin
Sung Yeon Hwang
Daun Jeong
Adjusting on-scene CPR duration based on transport time interval in out-of-hospital cardiac arrest: a nationwide multicenter study
Scientific Reports
Out-of-hospital cardiac arrest
Cardiopulmonary resuscitation
Emergency medical services
Survival
title Adjusting on-scene CPR duration based on transport time interval in out-of-hospital cardiac arrest: a nationwide multicenter study
title_full Adjusting on-scene CPR duration based on transport time interval in out-of-hospital cardiac arrest: a nationwide multicenter study
title_fullStr Adjusting on-scene CPR duration based on transport time interval in out-of-hospital cardiac arrest: a nationwide multicenter study
title_full_unstemmed Adjusting on-scene CPR duration based on transport time interval in out-of-hospital cardiac arrest: a nationwide multicenter study
title_short Adjusting on-scene CPR duration based on transport time interval in out-of-hospital cardiac arrest: a nationwide multicenter study
title_sort adjusting on scene cpr duration based on transport time interval in out of hospital cardiac arrest a nationwide multicenter study
topic Out-of-hospital cardiac arrest
Cardiopulmonary resuscitation
Emergency medical services
Survival
url https://doi.org/10.1038/s41598-025-87757-3
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