Survival and neurological outcome after out-of-hospital cardiac arrest treated with and without mechanical circulatory support

Aim: The aim of this study was to describe the survival and neurological outcome in patients with OHCA treated with and without mechanical circulatory support (MCS). Methods: This was a retrospective observational cohort study on patients with OHCA admitted to Aarhus University Hospital, Denmark, be...

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Main Authors: Sivagowry Rasalingam Mørk, Morten Thingemann Bøtker, Steffen Christensen, Mariann Tang, Christian Juhl Terkelsen
Format: Article
Language:English
Published: Elsevier 2022-06-01
Series:Resuscitation Plus
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666520422000303
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author Sivagowry Rasalingam Mørk
Morten Thingemann Bøtker
Steffen Christensen
Mariann Tang
Christian Juhl Terkelsen
author_facet Sivagowry Rasalingam Mørk
Morten Thingemann Bøtker
Steffen Christensen
Mariann Tang
Christian Juhl Terkelsen
author_sort Sivagowry Rasalingam Mørk
collection DOAJ
description Aim: The aim of this study was to describe the survival and neurological outcome in patients with OHCA treated with and without mechanical circulatory support (MCS). Methods: This was a retrospective observational cohort study on patients with OHCA admitted to Aarhus University Hospital, Denmark, between January 2015 and December 2019. Kaplan-Meier estimates were used to evaluate 30-day and 30–180-day survival. Cox regression analysis was used to assess the association between covariates and one-year mortality. Results: Among 1,015 patients admitted, 698 achieved return of spontaneous circulation (ROSC) before admission, 101 patients with refractory OHCA received mechanical circulatory support (MCS) and the remaining 216 patients with refractory OHCA did not receive MCS treatment. Survival to hospital discharge was 47% (478/1015). Good neurological outcome defined as Cerebral Performance Categories 1–2 were seen among 92% (438/478) of the patients discharged from hospital. Median low-flow was 15 [8–22] minutes in the ROSC group and 105 [94–123] minutes in the MCS group. Mortality rates were high within the first 30 days, however; 30–180-day survival in patients discharged remained constant over time in both patients with ROSC on admission and patients admitted with MCS. Advanced age > 70 years (hazard ratio (HR) 1.98, 95% confidence interval (CI) 1.11–3.49), pulseless electrical activity (HR 2.39, 95% CI 1.25–4.60) and asystole HR 2.70, 95% CI 1.25–5.95) as initial rhythms were associated with one-year mortality in patients with ROSC. Conclusions: Short-term survival rates were high among patients with ROSC and patients receiving MCS. Among patients who survived to day 30, landmark analyses showed comparable 180-day survival in the two groups despite long low-flow times in the MCS group. Advanced age and initial non-shockable rhythms were independent predictors of one-year mortality in patients with ROSC on admission.
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spelling doaj.art-913ee01c48d046a69d68d2b3ec8662292022-12-22T02:38:46ZengElsevierResuscitation Plus2666-52042022-06-0110100230Survival and neurological outcome after out-of-hospital cardiac arrest treated with and without mechanical circulatory supportSivagowry Rasalingam Mørk0Morten Thingemann Bøtker1Steffen Christensen2Mariann Tang3Christian Juhl Terkelsen4Department of Cardiology, Aarhus University Hospital, Denmark; Aarhus University, Aarhus, Denmark; Corresponding author at: Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, DK-8200 Aarhus N, Denmark.Research and Development, Prehospital Emergency Medical Services, Central Denmark Region, Denmark; Aarhus University, Aarhus, DenmarkDepartment of Anesthesiology and Intensive Care, Aarhus University Hospital, Denmark; Aarhus University, Aarhus, DenmarkDepartment of Thoracic and Vascular Surgery, Aarhus University Hospital, Denmark; Aarhus University, Aarhus, DenmarkDepartment of Cardiology, Aarhus University Hospital, Denmark; Aarhus University, Aarhus, Denmark; The Danish Heart Foundation, DenmarkAim: The aim of this study was to describe the survival and neurological outcome in patients with OHCA treated with and without mechanical circulatory support (MCS). Methods: This was a retrospective observational cohort study on patients with OHCA admitted to Aarhus University Hospital, Denmark, between January 2015 and December 2019. Kaplan-Meier estimates were used to evaluate 30-day and 30–180-day survival. Cox regression analysis was used to assess the association between covariates and one-year mortality. Results: Among 1,015 patients admitted, 698 achieved return of spontaneous circulation (ROSC) before admission, 101 patients with refractory OHCA received mechanical circulatory support (MCS) and the remaining 216 patients with refractory OHCA did not receive MCS treatment. Survival to hospital discharge was 47% (478/1015). Good neurological outcome defined as Cerebral Performance Categories 1–2 were seen among 92% (438/478) of the patients discharged from hospital. Median low-flow was 15 [8–22] minutes in the ROSC group and 105 [94–123] minutes in the MCS group. Mortality rates were high within the first 30 days, however; 30–180-day survival in patients discharged remained constant over time in both patients with ROSC on admission and patients admitted with MCS. Advanced age > 70 years (hazard ratio (HR) 1.98, 95% confidence interval (CI) 1.11–3.49), pulseless electrical activity (HR 2.39, 95% CI 1.25–4.60) and asystole HR 2.70, 95% CI 1.25–5.95) as initial rhythms were associated with one-year mortality in patients with ROSC. Conclusions: Short-term survival rates were high among patients with ROSC and patients receiving MCS. Among patients who survived to day 30, landmark analyses showed comparable 180-day survival in the two groups despite long low-flow times in the MCS group. Advanced age and initial non-shockable rhythms were independent predictors of one-year mortality in patients with ROSC on admission.http://www.sciencedirect.com/science/article/pii/S2666520422000303Mechanical circulatory supportOut-of-hospital cardiac arrestExtracorporeal cardiopulmonary resuscitationNeurological outcomeImpella
spellingShingle Sivagowry Rasalingam Mørk
Morten Thingemann Bøtker
Steffen Christensen
Mariann Tang
Christian Juhl Terkelsen
Survival and neurological outcome after out-of-hospital cardiac arrest treated with and without mechanical circulatory support
Resuscitation Plus
Mechanical circulatory support
Out-of-hospital cardiac arrest
Extracorporeal cardiopulmonary resuscitation
Neurological outcome
Impella
title Survival and neurological outcome after out-of-hospital cardiac arrest treated with and without mechanical circulatory support
title_full Survival and neurological outcome after out-of-hospital cardiac arrest treated with and without mechanical circulatory support
title_fullStr Survival and neurological outcome after out-of-hospital cardiac arrest treated with and without mechanical circulatory support
title_full_unstemmed Survival and neurological outcome after out-of-hospital cardiac arrest treated with and without mechanical circulatory support
title_short Survival and neurological outcome after out-of-hospital cardiac arrest treated with and without mechanical circulatory support
title_sort survival and neurological outcome after out of hospital cardiac arrest treated with and without mechanical circulatory support
topic Mechanical circulatory support
Out-of-hospital cardiac arrest
Extracorporeal cardiopulmonary resuscitation
Neurological outcome
Impella
url http://www.sciencedirect.com/science/article/pii/S2666520422000303
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