Use of the HOPE score to assess survival outcome of hypothermic cardiac arrest selected by ECLS rewarming

Abstract Background We studied adult hypothermic cardiac arrest (CA) patients admitted to a University Hospital (UH) and a Regional Hospital (RH) for whom Extracorporeal Life Support (ECLS) was implemented. We used the HOPE score to estimate individual survival probabilities and to compare overall r...

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Main Authors: Nicolas Hall, Jessika Métrailler-Mermoud, Valentin Rousson, Chloé Conforti, Amélie Dupasquier, Pierre-Nicolas Carron, Silke Grabherr, Bettina Schrag, Matthias Kirsch, Cheyenne Falat, Dominique Delay, Vincent Frochaux, Mathieu Pasquier
Format: Article
Language:English
Published: BMC 2025-07-01
Series:Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
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Online Access:https://doi.org/10.1186/s13049-025-01445-9
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author Nicolas Hall
Jessika Métrailler-Mermoud
Valentin Rousson
Chloé Conforti
Amélie Dupasquier
Pierre-Nicolas Carron
Silke Grabherr
Bettina Schrag
Matthias Kirsch
Cheyenne Falat
Dominique Delay
Vincent Frochaux
Mathieu Pasquier
author_facet Nicolas Hall
Jessika Métrailler-Mermoud
Valentin Rousson
Chloé Conforti
Amélie Dupasquier
Pierre-Nicolas Carron
Silke Grabherr
Bettina Schrag
Matthias Kirsch
Cheyenne Falat
Dominique Delay
Vincent Frochaux
Mathieu Pasquier
author_sort Nicolas Hall
collection DOAJ
description Abstract Background We studied adult hypothermic cardiac arrest (CA) patients admitted to a University Hospital (UH) and a Regional Hospital (RH) for whom Extracorporeal Life Support (ECLS) was implemented. We used the HOPE score to estimate individual survival probabilities and to compare overall results between hospitals. Methods We included hypothermic CA patients who underwent ECLS between 2000 and 2022. We assessed the predicted survival probabilities by calculating the HOPE scores, both at individual and hospital levels. We assessed the performance of a HOPE score cutoff of 10% in predicting survival to hospital discharge, as ECLS rewarming is currently recommended when the HOPE is ≥ 10%. We also assessed the utility of the HOPE score in evaluating and comparing patient management within and between two hospitals. Results In the 46 patients with successful ECLS implementation, a HOPE score < 10% would have contraindicated and therefore prevented futile ECLS rewarming procedures for 17 patients (37%) who did not survive, while finding that ECLS was indicated for 100% of survivors. The observed survival rate was 24% (UH: 35%, RH: 11%) whereas the HOPE score predicted a survival rate of 35% (UH: 41%, RH: 26%), suggesting underperformance of ECLS rewarming among both hospitals. The difference of survival between the two hospitals was not statistically significant. Conclusions This study confirmed the utility of the HOPE score in estimating individual survival probabilities. The HOPE score may also be used to estimate the overall survival rate in a patient cohort, enabling internal quality-control and outcome results comparisons between different settings.
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spelling doaj-art-8b22de19f4d44c50ade841e9ba29f36a2025-08-20T03:46:16ZengBMCScandinavian Journal of Trauma, Resuscitation and Emergency Medicine1757-72412025-07-013311910.1186/s13049-025-01445-9Use of the HOPE score to assess survival outcome of hypothermic cardiac arrest selected by ECLS rewarmingNicolas Hall0Jessika Métrailler-Mermoud1Valentin Rousson2Chloé Conforti3Amélie Dupasquier4Pierre-Nicolas Carron5Silke Grabherr6Bettina Schrag7Matthias Kirsch8Cheyenne Falat9Dominique Delay10Vincent Frochaux11Mathieu Pasquier12Department of Emergency Medicine, Lausanne University Hospital and University of LausanneEmergency Service, Valais HospitalCenter for Primary Care and Public Health (Unisanté)Lausanne University School of MedicineLausanne University School of MedicineDepartment of Emergency Medicine, Lausanne University Hospital and University of LausanneUniversity Center of Legal Medicine, Lausanne - Geneva, Lausanne University Hospital and University of Lausanne, Geneva University Hospital and University of GenevaLegal Medicine Service, Hospitals Central Institute (ICH)Department of Cardiac Surgery, Lausanne University HospitalDepartment of Emergency Medicine, University of Maryland School of MedicineDepartment of Cardiac Surgery, Valais HospitalEmergency Service, Valais HospitalDepartment of Emergency Medicine, Lausanne University Hospital and University of LausanneAbstract Background We studied adult hypothermic cardiac arrest (CA) patients admitted to a University Hospital (UH) and a Regional Hospital (RH) for whom Extracorporeal Life Support (ECLS) was implemented. We used the HOPE score to estimate individual survival probabilities and to compare overall results between hospitals. Methods We included hypothermic CA patients who underwent ECLS between 2000 and 2022. We assessed the predicted survival probabilities by calculating the HOPE scores, both at individual and hospital levels. We assessed the performance of a HOPE score cutoff of 10% in predicting survival to hospital discharge, as ECLS rewarming is currently recommended when the HOPE is ≥ 10%. We also assessed the utility of the HOPE score in evaluating and comparing patient management within and between two hospitals. Results In the 46 patients with successful ECLS implementation, a HOPE score < 10% would have contraindicated and therefore prevented futile ECLS rewarming procedures for 17 patients (37%) who did not survive, while finding that ECLS was indicated for 100% of survivors. The observed survival rate was 24% (UH: 35%, RH: 11%) whereas the HOPE score predicted a survival rate of 35% (UH: 41%, RH: 26%), suggesting underperformance of ECLS rewarming among both hospitals. The difference of survival between the two hospitals was not statistically significant. Conclusions This study confirmed the utility of the HOPE score in estimating individual survival probabilities. The HOPE score may also be used to estimate the overall survival rate in a patient cohort, enabling internal quality-control and outcome results comparisons between different settings.https://doi.org/10.1186/s13049-025-01445-9Accidental hypothermiaCardiac arrestECLSEnvironmental hypothermiaHOPE scoreBenchmarking
spellingShingle Nicolas Hall
Jessika Métrailler-Mermoud
Valentin Rousson
Chloé Conforti
Amélie Dupasquier
Pierre-Nicolas Carron
Silke Grabherr
Bettina Schrag
Matthias Kirsch
Cheyenne Falat
Dominique Delay
Vincent Frochaux
Mathieu Pasquier
Use of the HOPE score to assess survival outcome of hypothermic cardiac arrest selected by ECLS rewarming
Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
Accidental hypothermia
Cardiac arrest
ECLS
Environmental hypothermia
HOPE score
Benchmarking
title Use of the HOPE score to assess survival outcome of hypothermic cardiac arrest selected by ECLS rewarming
title_full Use of the HOPE score to assess survival outcome of hypothermic cardiac arrest selected by ECLS rewarming
title_fullStr Use of the HOPE score to assess survival outcome of hypothermic cardiac arrest selected by ECLS rewarming
title_full_unstemmed Use of the HOPE score to assess survival outcome of hypothermic cardiac arrest selected by ECLS rewarming
title_short Use of the HOPE score to assess survival outcome of hypothermic cardiac arrest selected by ECLS rewarming
title_sort use of the hope score to assess survival outcome of hypothermic cardiac arrest selected by ecls rewarming
topic Accidental hypothermia
Cardiac arrest
ECLS
Environmental hypothermia
HOPE score
Benchmarking
url https://doi.org/10.1186/s13049-025-01445-9
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