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Perkins GD, Neumar R, Hsu CH, Hirsch KG, Aneman A, Becker LB, Couper K, Callaway CW, Hoedemaekers CWE, Lim SL, Meurer W, Olasveengen T, Sekhon MS, Skrifvars M, Soar J, Tsai MS, Vengamma B, Nolan JP. Improving Outcomes After Post-Cardiac Arrest Brain Injury: A Scientific Statement From the International Liaison Committee on Resuscitation. Resuscitation 2024; 201:110196. [PMID: 38932555 DOI: 10.1016/j.resuscitation.2024.110196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
This scientific statement presents a conceptual framework for the pathophysiology of post-cardiac arrest brain injury, explores reasons for previous failure to translate preclinical data to clinical practice, and outlines potential paths forward. Post-cardiac arrest brain injury is characterized by 4 distinct but overlapping phases: ischemic depolarization, reperfusion repolarization, dysregulation, and recovery and repair. Previous research has been challenging because of the limitations of laboratory models; heterogeneity in the patient populations enrolled; overoptimistic estimation of treatment effects leading to suboptimal sample sizes; timing and route of intervention delivery; limited or absent evidence that the intervention has engaged the mechanistic target; and heterogeneity in postresuscitation care, prognostication, and withdrawal of life-sustaining treatments. Future trials must tailor their interventions to the subset of patients most likely to benefit and deliver this intervention at the appropriate time, through the appropriate route, and at the appropriate dose. The complexity of post-cardiac arrest brain injury suggests that monotherapies are unlikely to be as successful as multimodal neuroprotective therapies. Biomarkers should be developed to identify patients with the targeted mechanism of injury, to quantify its severity, and to measure the response to therapy. Studies need to be adequately powered to detect effect sizes that are realistic and meaningful to patients, their families, and clinicians. Study designs should be optimized to accelerate the evaluation of the most promising interventions. Multidisciplinary and international collaboration will be essential to realize the goal of developing effective therapies for post-cardiac arrest brain injury.
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Buter R, van Schuppen H, Stieglis R, Koffijberg H, Demirtas D. Increasing cost-effectiveness of AEDs using algorithms to optimise location. Resuscitation 2024; 201:110300. [PMID: 38960067 DOI: 10.1016/j.resuscitation.2024.110300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 06/05/2024] [Accepted: 06/27/2024] [Indexed: 07/05/2024]
Abstract
OBJECTIVES Volunteer responder systems (VRSs) aim to decrease time to defibrillation by dispatching trained volunteers to automated external defibrillators (AEDs) and out-of-hospital cardiac arrest (OHCA) victims. AEDs are often underutilized due to poor placement. This study provides a cost-effectiveness analysis of adding AEDs at strategic locations to maximize quality-adjusted life years (QALYs). METHODS We simulated combined volunteer, police, firefighter, and emergency medical service response scenarios to OHCAs, and applied our methods to a case study of Amsterdam, the Netherlands. We compared the competing strategies of placing additional AEDs, using steps of 40 extra AEDs (0, 40, …, 1480), in addition to the existing 369 AEDs. Incremental cost-effectiveness ratios (ICERs) were calculated for each increase in additional AEDs, from a societal perspective. The effect of AED connection and time to connection on survival to hospital admission and neurological outcome at discharge was estimated using logistic regression, using OHCA data from Amsterdam from 2006 to 2018. Other model inputs were obtained from literature. RESULTS Purchasing up to 1120 additional AEDs (ICER €75,669/QALY) was cost-effective at a willingness-to-pay threshold of €80,000/QALY, when positioned strategically. Compared to current practice, adding 1120 AEDs resulted in a gain of 0.111 QALYs (95% CI 0.110-0.112) at an increased cost of €3792 per OHCA (95% CI €3778-€3807). Health benefits per AED diminished as more AEDs were added. CONCLUSIONS Our study identified cost-effective strategies to position AEDs at strategic locations in a VRS. The case study findings advocate for a substantial increase in the number of AEDs in Amsterdam.
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Affiliation(s)
- Robin Buter
- Center for Healthcare Operations Improvement and Research, University of Twente, Drienerlolaan 5, 7500 AE Enschede, The Netherlands; Industrial Engineering and Business Information Systems, University of Twente, Drienerlolaan 5, 7500 AE Enschede, The Netherlands.
| | - Hans van Schuppen
- Department of Anesthesiology, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands.
| | - Remy Stieglis
- Department of Anesthesiology, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands.
| | - Hendrik Koffijberg
- Health Technology & Services Research, University of Twente, Drienerlolaan 5, 7500 AE, Enschede, The Netherlands.
| | - Derya Demirtas
- Center for Healthcare Operations Improvement and Research, University of Twente, Drienerlolaan 5, 7500 AE Enschede, The Netherlands; Industrial Engineering and Business Information Systems, University of Twente, Drienerlolaan 5, 7500 AE Enschede, The Netherlands.
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Nazeha N, Mao DR, Hong D, Shahidah N, Chua ISY, Ng YY, Leong BSH, Tiah L, Chia MYC, Ng WM, Doctor NE, Ong MEH, Graves N. Cost-effectiveness analysis of a 'Termination of Resuscitation' protocol for the management of out-of-hospital cardiac arrest. Resuscitation 2024; 202:110323. [PMID: 39029582 DOI: 10.1016/j.resuscitation.2024.110323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/09/2024] [Accepted: 07/12/2024] [Indexed: 07/21/2024]
Abstract
BACKGROUND Historically in Singapore, all out-of-hospital cardiac arrests (OHCA) were transported to hospital for pronouncement of death. A 'Termination of Resuscitation' (TOR) protocol, implemented from 2019 onwards, enables emergency responders to pronounce death at-scene in Singapore. This study aims to evaluate the cost-effectiveness of the TOR protocol for OHCA management. METHODS Adopting a healthcare provider's perspective, a Markov model was developed to evaluate three competing options: No TOR, Observed TOR reflecting existing practice, and Full TOR if TOR is exercised fully. The model had a cycle duration of 30 days after the initial state of having a cardiac arrest, and was evaluated over a 10-year time horizon. Probabilistic sensitivity analysis was performed to account for uncertainties. The costs per quality adjusted life years (QALY) was calculated. RESULTS A total of 3,695 OHCA cases eligible for the TOR protocol were analysed; mean age of 73.0 ± 15.5 years. For every 10,000 hypothetical patients, Observed TOR and Full TOR had more deaths by approximately 19 and 31 patients, respectively, compared to No TOR. Full TOR had the least costs and QALYs at $19,633,369 (95% Uncertainty Interval (UI) 19,469,973 to 19,796,764) and 0 QALYs. If TOR is exercised for every eligible case, it could expect to save approximately $400,440 per QALY loss compared to No TOR, and $821,151 per QALY loss compared to Observed TOR. CONCLUSION The application of the TOR protocol for the management of OHCA was found to be cost-effective within acceptable willingness-to-pay thresholds, providing some justification for sustainable adoption.
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Affiliation(s)
- Nuraini Nazeha
- Health Services and Systems Research, Duke-NUS Medical School, 8 College Rd, Singapore 169857, Singapore
| | - Desmond Renhao Mao
- Department of Acute and Emergency Care, Khoo Teck Puat Hospital, 90 Yishun Central, Singapore 768828, Singapore
| | - Dehan Hong
- Emergency Medical Services Department, Singapore Civil Defence Force, 91 Ubi Ave 4, Singapore 408827, Singapore
| | - Nur Shahidah
- Department of Emergency Medicine, Singapore General Hospital, Outram Road, Singapore 169608, Singapore; Pre-hospital and Emergency Research Centre, Duke-NUS Medical School, 8 College Rd, Singapore 169857, Singapore
| | - Ivan Si Yong Chua
- Department of Emergency Medicine, Singapore General Hospital, Outram Road, Singapore 169608, Singapore
| | - Yih Yng Ng
- Department of Preventive and Population Medicine, Tan Tock Seng Hospital, 11 Jln Tan Tock Seng, Singapore 308433, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Rd, Singapore 308207, Singapore
| | - Benjamin S H Leong
- Emergency Medicine Department, National University Hospital, 5 Lower Kent Ridge Rd, Singapore 119074, Singapore
| | - Ling Tiah
- Accident and Emergency, Changi General Hospital, 2 Simei St 3, Singapore 529889, Singapore
| | - Michael Y C Chia
- Emergency Department, Tan Tock Seng Hospital, 11 Jln Tan Tock Seng, Singapore 308433, Singapore
| | - Wei Ming Ng
- Emergency Medicine Department, Ng Teng Fong General Hospital, 1 Jurong East Street 21, Singapore 609606, Singapore
| | - Nausheen E Doctor
- Department of Emergency Medicine, Sengkang General Hospital, 110 Sengkang E Wy, Singapore 544886, Singapore
| | - Marcus Eng Hock Ong
- Health Services and Systems Research, Duke-NUS Medical School, 8 College Rd, Singapore 169857, Singapore; Department of Emergency Medicine, Singapore General Hospital, Outram Road, Singapore 169608, Singapore
| | - Nicholas Graves
- Health Services and Systems Research, Duke-NUS Medical School, 8 College Rd, Singapore 169857, Singapore.
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Werner K, Hirner S, Offorjebe OA, Hosten E, Gordon J, Geduld H, Wallis LA, Risko N. A Systematic Review of Cost-Effectiveness of Treating Out of Hospital Cardiac Arrest: Implications for Resource-limited Health Systems. RESEARCH SQUARE 2024:rs.3.rs-4402626. [PMID: 38883781 PMCID: PMC11177998 DOI: 10.21203/rs.3.rs-4402626/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Background Out-of-hospital cardiac arrest (OHCA) is a prevalent condition with high mortality and poor outcomes even in settings where extensive emergency care resources are available. Interventions to address OHCA have had limited success, with survival rates below 10% in national samples of high-income countries. In resource-limited settings, where scarcity requires careful priority setting, more data is needed to determine the optimal allocation of resources. Objective To establish the cost-effectiveness of OHCA care and assess the affordability of interventions across income settings. Methods The authors conducted a systematic review of economic evaluations on interventions to address OHCA. Included studies were (1) economic evaluations (beyond a simple costing exercise); and (2) assessed an intervention in the chain of survival for OHCA. Article quality was assessed using the CHEERs checklist and data summarised. Findings were reported by major themes identified by the reviewers. Based upon the results of the cost-effectiveness analyses we then conduct an analysis for the progressive realization of the OHCA chain of survival from the perspective of decision-makers facing resource constraints. Results 468 unique articles were screened, and 46 articles were included for final data abstraction. Studies predominantly used a healthcare sector perspective, modeled for all patients experiencing non-traumatic cardiac OHCA, were based in the US, and presented results in US Dollars. No studies reported results or used model inputs from low-income settings. Progressive realization of the chain of survival could likely begin with investments in TOR protocols, professional prehospital defibrillator use, and CPR training followed by distribution of AEDs in high-density public locations. Finally, other interventions such as indiscriminate defibrillator placement or adrenaline use, would be the lowest priority for early investment. Conclusion Our review found no high-quality evidence on the cost-effectiveness of treating OHCA in low-resource settings. Existing evidence can be utilized to develop a roadmap for the development of a cost-effective approach to OHCA care, however further economic evaluations using context-specific data are crucial to accurately inform prioritization of scarce resources within emergency care in these settings.
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Qvist Kristensen L, van Tulder MW, Eiskjær H, Sørensen L, Wulff Risør B, Gregersen Oestergaard L. Cost of out-of-hospital cardiac arrest survivors compared with matched control groups. Resuscitation 2024; 199:110239. [PMID: 38750785 DOI: 10.1016/j.resuscitation.2024.110239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 05/03/2024] [Indexed: 05/21/2024]
Abstract
INTRODUCTION Societal costs of out-of-hospital cardiac arrest (OHCA) survivors may be extensive due to high health care utilization and sick leave. Knowledge of the costs of OHCA survivors may guide decision-makers to prioritize health resources. AIM The aims of the study were to evaluate the costs of OHCA survivors from a societal perspective, and to compare these costs to the costs of individuals with non-cardiac arrest myocardial infarction (MI) and individuals with no cardiac disease (non-CD). METHODS From the Danish OHCA Registers, survivors, with a cardiac arrest between 2005-2018 were identified. Each case was assigned one MI control and one non-CD control, matched on gender and age. Based on register data, costs of healthcare utilization, sick leave, vocational rehabilitation, disability pension and other social benefits one year before event and five years after, were estimated. RESULTS In total 5,646 OHCA survivors were identified with associated control groups. The mean costs for OHCA survivors during the 6-year period were €119,106 (95%CI: 116,297-121,916), with €83,472 (95%CI: 81,392-85,552) being healthcare costs. Mean costs of OHCA survivors were €49,132 higher than the MI-control group and €100,583 higher than the non-CD control group. CONCLUSIONS Total costs of OHCA survivors were considerably higher than costs of MI- and non-CD controls. Hospital costs were highest during the first year after event, and work inability during the second to fifth year with sick leave and later disability pension as main burdens.
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Affiliation(s)
- Lola Qvist Kristensen
- Department of Physiotherapy and Occupational Therapy, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99. 8200 Aarhus N, Denmark; Faculty of Health, Aarhus University, Vennelyst Boulevard, 8000 Aarhus, Denmark.
| | - Maurits W van Tulder
- Department of Physiotherapy and Occupational Therapy, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99. 8200 Aarhus N, Denmark; Health Technology Assessment, Faculty Behavioural and Movement Sciences, Vrije Universiteit, Van der Boechorststraat, 1081 BT Amsterdam, the Netherlands
| | - Hans Eiskjær
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99. 8200 Aarhus N, Denmark
| | - Lotte Sørensen
- Department of Physiotherapy and Occupational Therapy, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99. 8200 Aarhus N, Denmark
| | - Bettina Wulff Risør
- Central Denmark Region, DEFACTUM, Evald Krogs Gade 16A, 8000 Aarhus C, Denmark; Aalborg University, Department of Clinical Medicine, Danish Centre for Health Services Research, Selma Lagerløfsvej 249, 9260 Gistrup, Denmark
| | - Lisa Gregersen Oestergaard
- Central Denmark Region, DEFACTUM, Evald Krogs Gade 16A, 8000 Aarhus C, Denmark; Department of Public Health, Aarhus University, Vennelyst Boulevard, 8000 Aarhus, Denmark
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Flam B, Andersson Franko M, Skrifvars MB, Djärv T, Cronhjort M, Jonsson Fagerlund M, Mårtensson J. Trends in Incidence and Outcomes of Cardiac Arrest Occurring in Swedish ICUs. Crit Care Med 2024; 52:e11-e20. [PMID: 37747306 DOI: 10.1097/ccm.0000000000006067] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
OBJECTIVE To determine temporal trends in the incidence of cardiac arrest occurring in the ICU (ICU-CA) and its associated long-term mortality. DESIGN Retrospective observational study. SETTING Swedish ICUs, between 2011 and 2017. PATIENTS Adult patients (≥18 yr old) recorded in the Swedish Intensive Care Registry (SIR). INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS ICU-CA was defined as a first episode of cardiopulmonary resuscitation and/or defibrillation following an ICU admission, as recorded in SIR or the Swedish Cardiopulmonary Resuscitation Registry. Annual adjusted ICU-CA incidence trend (all admissions) was estimated using propensity score-weighted analysis. Six-month mortality trends (first admissions) were assessed using multivariable mixed-effects logistic regression. Analyses were adjusted for pre-admission characteristics (sex, age, socioeconomic status, comorbidities, medications, and healthcare utilization), illness severity on ICU admission, and admitting unit. We included 231,427 adult ICU admissions. Crude ICU-CA incidence was 16.1 per 1,000 admissions, with no significant annual trend in the propensity score-weighted analysis. Among 186,530 first admissions, crude 6-month mortality in ICU-CA patients was 74.7% (95% CI, 70.1-78.9) in 2011 and 68.8% (95% CI, 64.4-73.0) in 2017. When controlling for multiple potential confounders, the adjusted 6-month mortality odds of ICU-CA patients decreased by 6% per year (95% CI, 2-10). Patients admitted after out-of-hospital or in-hospital cardiac arrest had the highest ICU-CA incidence (136.1/1,000) and subsequent 6-month mortality (76.0% [95% CI, 73.6-78.4]). CONCLUSIONS In our nationwide Swedish cohort, the adjusted incidence of ICU-CA remained unchanged between 2011 and 2017. More than two-thirds of patients with ICU-CA did not survive to 6 months following admission, but a slight improvement appears to have occurred over time.
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Affiliation(s)
- Benjamin Flam
- Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden
- Section of Anesthesiology and Intensive Care Medicine, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Mikael Andersson Franko
- Department of Clinical Science and Education, South General Hospital, Karolinska Institutet, Stockholm, Sweden
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Markus B Skrifvars
- Department of Emergency Care and Services, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Therese Djärv
- Medical Unit Acute/Emergency Department, Karolinska University Hospital, Stockholm, Sweden
- Division of Clinical Medicine, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Maria Cronhjort
- Department of Clinical Science and Education, South General Hospital, Karolinska Institutet, Stockholm, Sweden
- Department of Anesthesiology and Intensive Care, South General Hospital, Stockholm, Sweden
| | - Malin Jonsson Fagerlund
- Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden
- Section of Anesthesiology and Intensive Care Medicine, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Johan Mårtensson
- Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden
- Section of Anesthesiology and Intensive Care Medicine, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
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Matilla-García M, Ubeda Molla P, Sánchez Martínez F, Ariza-Solé A, Gómez-López R, López de Sá E, Ferrer R. Economic burden of Cardiac Arrest in Spain: analyzing healthcare costs drivers and treatment strategies cost-effectiveness. BMC Health Serv Res 2023; 23:1220. [PMID: 37936221 PMCID: PMC10631046 DOI: 10.1186/s12913-023-10274-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 11/03/2023] [Indexed: 11/09/2023] Open
Abstract
BACKGROUND Cardiac arrest is a major public health issue in Europe. Cardiac arrest seems to be associated with a large socioeconomic burden in terms of resource utilization and health care costs. The aim of this study is the analysis of the economic burden of cardiac arrest in Spain and a cost-effectiveness analysis of the key intervention identified, especially in relation to neurological outcome at discharge. METHODS The data comes from the information provided by 115 intensive care and cardiology units from Spain, including information on the care of patients with out-of-hospital cardiac arrest who had a return of spontaneous circulation. The information reported by theses 115 units was collected by a nationwide survey conducted between March and September 2020. Along with number of patients (2631), we also collect information about the structure of the units, temperature management, and prognostication assessments. In this study we analyze the potential association of several factors with neurological outcome at discharge, and the cost associated with the different factors. The cost-effectiveness of using servo-control for temperature management is analyzed by means of a decision model, based on the results of the survey and data collected in the literature, for a one-year and a lifetime time horizon. RESULTS A total of 109 cardiology units provided results on neurological outcome at discharge as evaluated with the cerebral performance category (CPC). The most relevant factor associated with neurological outcome at discharge was 'servo-control use', showing a 12.8% decrease in patients with unfavorable neurological outcomes (i.e., CPC3-4 vs. CPC1-2). The total cost per patient (2020 Euros) was €73,502. Only "servo-control use" was associated with an increased mean total cost per hospital. Patients treated with servo-control for temperature management gained in the short term (1 year) an average of 0.039 QALYs over those who were treated with other methods at an increased cost of €70.8, leading to an incremental cost-effectiveness ratio of 1,808 euros. For a lifetime time horizon, the use of servo-control is both more effective and less costly than the alternative. CONCLUSIONS Our results suggest the implementation of servo-control techniques in all the units that are involved in managing the cardiac arrest patient from admission until discharge from hospital to minimize the neurological damage to patients and to reduce costs to the health and social security system.
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Affiliation(s)
- Mariano Matilla-García
- Deparment of Applied Economics and Statistics, UNED, Paseo Senda del Rey, 11, Madrid, 28040, Spain.
| | - Paloma Ubeda Molla
- Deparment of Applied Economics and Statistics, UNED, Paseo Senda del Rey, 11, Madrid, 28040, Spain
| | | | - Albert Ariza-Solé
- Cardiology Department. Bellvitge University Hospital. Bioheart. Grup de Malalties Cardiovasculars. Institut d'Investigació Biomèdica de Bellvitge. IDIBELL. L'Hospitalet de Llobregat, Barcelona, 08907, Spain
| | | | - Esteban López de Sá
- Cardiology Service Hospital Universitario La Paz, Pso. de la castellana 261, Madrid, 28046, Spain
| | - Ricard Ferrer
- Intensive Care department, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Shock, Organ Dysfunction, and Resuscitation (SODIR) Research Group, Vall d'Hebron Institut de Recerca (VHIR) Passeig de la Vall d'Hebron, Barcelona, 08035, Spain
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Amacher SA, Blatter R, Briel M, Appenzeller-Herzog C, Bohren C, Becker C, Beck K, Gross S, Tisljar K, Sutter R, Marsch S, Hunziker S. Predicting neurological outcome in adult patients with cardiac arrest: systematic review and meta-analysis of prediction model performance. Crit Care 2022; 26:382. [PMID: 36503620 PMCID: PMC9741710 DOI: 10.1186/s13054-022-04263-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 10/10/2022] [Indexed: 12/14/2022] Open
Abstract
This work aims to assess the performance of two post-arrest (out-of-hospital cardiac arrest, OHCA, and cardiac arrest hospital prognosis, CAHP) and one pre-arrest (good outcome following attempted resuscitation, GO-FAR) prediction model for the prognostication of neurological outcome after cardiac arrest in a systematic review and meta-analysis. A systematic search was conducted in Embase, Medline, and Web of Science Core Collection from November 2006 to December 2021, and by forward citation tracking of key score publications. The search identified 1'021 records, of which 25 studies with a total of 124'168 patients were included in the review. A random-effects meta-analysis of C-statistics and overall calibration (total observed vs. expected [O:E] ratio) was conducted. Discriminatory performance was good for the OHCA (summary C-statistic: 0.83 [95% CI 0.81-0.85], 16 cohorts) and CAHP score (summary C-statistic: 0.84 [95% CI 0.82-0.87], 14 cohorts) and acceptable for the GO-FAR score (summary C-statistic: 0.78 [95% CI 0.72-0.84], five cohorts). Overall calibration was good for the OHCA (total O:E ratio: 0.78 [95% CI 0.67-0.92], nine cohorts) and the CAHP score (total O:E ratio: 0.78 [95% CI 0.72-0.84], nine cohorts) with an overestimation of poor outcome. Overall calibration of the GO-FAR score was poor with an underestimation of good outcome (total O:E ratio: 1.62 [95% CI 1.28-2.04], five cohorts). Two post-arrest scores showed good prognostic accuracy for predicting neurological outcome after cardiac arrest and may support early discussions about goals-of-care and therapeutic planning on the intensive care unit. A pre-arrest score showed acceptable prognostic accuracy and may support code status discussions.
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Affiliation(s)
- Simon A. Amacher
- grid.410567.1Intensive Care, University Hospital Basel, Basel, Switzerland ,grid.410567.1Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031 Basel, Switzerland
| | - René Blatter
- grid.410567.1Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031 Basel, Switzerland
| | - Matthias Briel
- grid.6612.30000 0004 1937 0642Meta-Research Centre, Department of Clinical Research, University of Basel and University Hospital Basel, Basel, Switzerland ,grid.25073.330000 0004 1936 8227Department of Health Research Methodology, Evidence, and Impact, McMaster University, Hamilton, Canada ,grid.6612.30000 0004 1937 0642Medical Faculty, University of Basel, Basel, Switzerland
| | | | - Chantal Bohren
- grid.410567.1Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031 Basel, Switzerland
| | - Christoph Becker
- grid.410567.1Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031 Basel, Switzerland ,grid.410567.1Department of Emergency Medicine, University Hospital Basel, Basel, Switzerland
| | - Katharina Beck
- grid.410567.1Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031 Basel, Switzerland
| | - Sebastian Gross
- grid.410567.1Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031 Basel, Switzerland
| | - Kai Tisljar
- grid.410567.1Intensive Care, University Hospital Basel, Basel, Switzerland
| | - Raoul Sutter
- grid.410567.1Intensive Care, University Hospital Basel, Basel, Switzerland ,grid.6612.30000 0004 1937 0642Medical Faculty, University of Basel, Basel, Switzerland
| | - Stephan Marsch
- grid.410567.1Intensive Care, University Hospital Basel, Basel, Switzerland ,grid.6612.30000 0004 1937 0642Medical Faculty, University of Basel, Basel, Switzerland
| | - Sabina Hunziker
- grid.410567.1Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031 Basel, Switzerland ,grid.6612.30000 0004 1937 0642Medical Faculty, University of Basel, Basel, Switzerland
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Blatter R, Amacher SA, Bohren C, Becker C, Beck K, Gross S, Tisljar K, Sutter R, Marsch S, Hunziker S. Comparison of different clinical risk scores to predict long-term survival and neurological outcome in adults after cardiac arrest: results from a prospective cohort study. Ann Intensive Care 2022; 12:77. [PMID: 35978065 PMCID: PMC9385915 DOI: 10.1186/s13613-022-01048-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 07/18/2022] [Indexed: 11/17/2022] Open
Abstract
Background Several scoring systems have been used to predict short-term outcome in patients with out-of-hospital cardiac arrest (OHCA), including the disease-specific OHCA and CAHP (Cardiac Arrest Hospital Prognosis) scores, as well as the general severity-of-illness scores Acute Physiology and Chronic Health Evaluation II (APACHE II) and Simplified Acute Physiology Score II (SAPS II). This study aimed to assess the prognostic performance of these four scores to predict long-term outcomes (≥ 2 years) in adult cardiac arrest patients. Methods This is a prospective single-centre cohort study including consecutive cardiac arrest patients admitted to intensive care in a Swiss tertiary academic medical centre. The primary endpoint was 2-year mortality. Secondary endpoints were neurological outcome at 2 years post-arrest assessed by Cerebral Performance Category with CPC 1–2 defined as good and CPC 3–5 as poor neurological outcome, and 6-year mortality. Results In 415 patients admitted to intensive care, the 2-year mortality was 58.1%, with 96.7% of survivors showing good neurological outcome. The 6-year mortality was 82.5%. All four scores showed good discriminatory performance for 2-year mortality, with areas under the receiver operating characteristics curve (AUROC) of 0.82, 0.87, 0.83 and 0.81 for the OHCA, CAHP, APACHE II and SAPS II scores. The results were similar for poor neurological outcome at 2 years and 6-year mortality. Conclusion This study suggests that two established cardiac arrest-specific scores and two severity-of-illness scores provide good prognostic value to predict long-term outcome after cardiac arrest and thus may help in early goals-of-care discussions. Supplementary Information The online version contains supplementary material available at 10.1186/s13613-022-01048-y.
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Affiliation(s)
- René Blatter
- Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031, Basel, Switzerland
| | - Simon A Amacher
- Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031, Basel, Switzerland.,Intensive Care Unit, University Hospital Basel, Basel, Switzerland
| | - Chantal Bohren
- Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031, Basel, Switzerland
| | - Christoph Becker
- Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031, Basel, Switzerland.,Department of Emergency Medicine, University Hospital Basel, Basel, Switzerland
| | - Katharina Beck
- Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031, Basel, Switzerland
| | - Sebastian Gross
- Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031, Basel, Switzerland
| | - Kai Tisljar
- Intensive Care Unit, University Hospital Basel, Basel, Switzerland
| | - Raoul Sutter
- Intensive Care Unit, University Hospital Basel, Basel, Switzerland.,Medical Faculty, University of Basel, Basel, Switzerland
| | - Stephan Marsch
- Intensive Care Unit, University Hospital Basel, Basel, Switzerland.,Medical Faculty, University of Basel, Basel, Switzerland
| | - Sabina Hunziker
- Medical Communication and Psychosomatic Medicine, University Hospital Basel, Klingelbergstrasse 23, 4031, Basel, Switzerland. .,Medical Faculty, University of Basel, Basel, Switzerland.
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10
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Oami T, Imaeda T, Nakada TA, Abe T, Takahashi N, Yamao Y, Nakagawa S, Ogura H, Shime N, Umemura Y, Matsushima A, Fushimi K. Temporal trends of medical cost and cost-effectiveness in sepsis patients: a Japanese nationwide medical claims database. J Intensive Care 2022; 10:33. [PMID: 35836301 PMCID: PMC9281011 DOI: 10.1186/s40560-022-00624-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 07/01/2022] [Indexed: 12/29/2022] Open
Abstract
Background Sepsis is the leading cause of death worldwide. Although the mortality of sepsis patients has been decreasing over the past decade, the trend of medical costs and cost-effectiveness for sepsis treatment remains insufficiently determined. Methods We conducted a retrospective study using the nationwide medical claims database of sepsis patients in Japan between 2010 and 2017. After selecting sepsis patients with a combined diagnosis of presumed serious infection and organ failure, patients over the age of 20 were included in this study. We investigated the annual trend of medical costs during the study period. The primary outcome was the annual trend of the effective cost per survivor, calculated from the gross medical cost and number of survivors per year. Subsequently, we performed subgroup and multiple regression analyses to evaluate the association between the annual trend and medical costs. Results Among 50,490,128 adult patients with claims, a total of 1,276,678 patients with sepsis were selected from the database. Yearly gross medical costs to treat sepsis gradually increased over the decade from $3.04 billion in 2010 to $4.38 billion in 2017, whereas the total medical cost per hospitalization declined (rate = − $1075/year, p < 0.0001). While the survival rate of sepsis patients improved during the study period, the effective cost per survivor significantly decreased (rate = − $1806/year [95% CI − $2432 to − $1179], p = 0.001). In the subgroup analysis, the trend of decreasing medical cost per hospitalization remained consistent among the subpopulation of age, sex, and site of infection. After adjusting for age, sex (male), number of chronic diseases, site of infection, intensive care unit (ICU) admission, surgery, and length of hospital stay, the admission year was significantly associated with reduced medical costs. Conclusions We demonstrated an improvement in annual cost-effectiveness in patients with sepsis between 2010 and 2017. The annual trend of reduced costs was consistent after adjustment with the confounders altering hospital expenses. Supplementary Information The online version contains supplementary material available at 10.1186/s40560-022-00624-5.
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Affiliation(s)
- Takehiko Oami
- Department of Emergency and Critical Care Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo, Chiba, 260-8677, Japan
| | - Taro Imaeda
- Department of Emergency and Critical Care Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo, Chiba, 260-8677, Japan
| | - Taka-Aki Nakada
- Department of Emergency and Critical Care Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo, Chiba, 260-8677, Japan.
| | - Toshikazu Abe
- Health Services Research and Development Center, University of Tsukuba, Tsukuba, Japan.,Department of Emergency and Critical Care Medicine, Tsukuba Memorial Hospital, Tsukuba, Japan
| | - Nozomi Takahashi
- Department of Emergency and Critical Care Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo, Chiba, 260-8677, Japan
| | - Yasuo Yamao
- Department of Emergency and Critical Care Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo, Chiba, 260-8677, Japan
| | - Satoshi Nakagawa
- Department of Critical Care Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Hiroshi Ogura
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Nobuaki Shime
- Department of Emergency and Critical Care Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yutaka Umemura
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Asako Matsushima
- Department of Emergency & Critical Care, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Kiyohide Fushimi
- Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School of Medical and Dental Sciences, Tokyo, Japan
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11
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Javanbakht M, Mashayekhi A, Hemami MR, Branagan-Harris M, Keeble TR, Yaghoubi M. Cost-Effectiveness Analysis of Intravascular Targeted Temperature Management after Cardiac Arrest in England. PHARMACOECONOMICS - OPEN 2022; 6:549-562. [PMID: 35503202 PMCID: PMC9283555 DOI: 10.1007/s41669-022-00333-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 03/30/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Targeted temperature management (TTM) has been shown to improve neurological outcomes and survival in patients resuscitated from cardiac arrest; however, the cost effectiveness of multiple TTM methods is not well studied. OBJECTIVE This study aimed to evaluate the cost effectiveness of intravascular temperature management (IVTM) using Thermogard XP compared with surface cooling methods after cardiac arrest in the England from the perspectives of the UK national health service and Personal Social Services. METHODS We developed a multi-state Markov model that evaluated IVTM (Thermogard XP) compared with surface cooling using two different devices (Blanketrol III and Arctic Sun 5000) over a short-term and lifetime time horizon. Model input parameters were obtained from the literature and local databases. We assumed a hypothetical cohort of 1000 patients who required TTM after cardiac arrest per year in the England. The outcomes were costs (in £, year 2019 values) and quality-adjusted life-years (QALYs), discounted at 3.5% annually. Deterministic and probabilistic sensitivity analyses were undertaken to examine the effect of alternative assumptions and uncertainty in model parameters on the results. RESULTS The cost-effectiveness analysis determined that Thermogard XP resulted in direct cost savings of £2339 and £2925 (per patient) compared with Blanketrol III and Arctic Sun 5000, respectively, and a gain of 0.98 QALYs over the patient lifetime. The probabilistic sensitivity analysis demonstrated that the probability of Thermogard XP being cost saving would be 69.2% and 65.3% versus the Arctic Sun 5000 and Blanketrol III, respectively. CONCLUSION Implementation of IVTM using Thermogard XP can lead to cost savings and improved patient quality of life versus surface cooling methods.
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Affiliation(s)
- Mehdi Javanbakht
- Optimax Access UK Ltd, Market Access Consultancy, Southampton, UK
| | | | | | | | - Thomas R Keeble
- Essex Cardiothoracic Centre, Basildon, UK
- MTRC, Anglia Ruskin School of Medicine, Chelmsford, UK
| | - Mohsen Yaghoubi
- Mercer University College of Pharmacy, 3001 Mercer University Dr, Atlanta, GA, 30341, USA.
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12
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Skogvoll E, Skrifvars MB. To what extent do cardiopulmonary resuscitation outcomes vary between hospitals? Acta Anaesthesiol Scand 2022; 66:430-431. [PMID: 35067919 DOI: 10.1111/aas.14028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 01/12/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Eirik Skogvoll
- Clinic of Anaesthesia and Intensive Care St. Olav University Hospital and Norwegian University of Science and Technology Trondheim Norway
| | - Markus B. Skrifvars
- Department of Emergency Care and Services Helsinki University Hospital and University of Helsinki Finland
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13
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Hoiland RL, Rikhraj KJK, Thiara S, Fordyce C, Kramer AH, Skrifvars MB, Wellington CL, Griesdale DE, Fergusson NA, Sekhon MS. Neurologic Prognostication After Cardiac Arrest Using Brain Biomarkers: A Systematic Review and Meta-analysis. JAMA Neurol 2022; 79:390-398. [PMID: 35226054 PMCID: PMC8886448 DOI: 10.1001/jamaneurol.2021.5598] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
IMPORTANCE Brain injury biomarkers released into circulation from the injured neurovascular unit are important prognostic tools in patients with cardiac arrest who develop hypoxic ischemic brain injury (HIBI) after return of spontaneous circulation (ROSC). OBJECTIVE To assess the neuroprognostic utility of bloodborne brain injury biomarkers in patients with cardiac arrest with HIBI. DATA SOURCES Studies in electronic databases from inception to September 15, 2021. These databases included MEDLINE, Embase, Evidence-Based Medicine Reviews, CINAHL, Cochrane Database of Systematic Reviews, and the World Health Organization Global Health Library. STUDY SELECTION Articles included in this systmatic review and meta-analysis were independently assessed by 2 reviewers. We included studies that investigated neuron-specific enolase, S100 calcium-binding protein β, glial fibrillary acidic protein, neurofilament light, tau, or ubiquitin carboxyl hydrolase L1 in patients with cardiac arrest aged 18 years and older for neurologic prognostication. We excluded studies that did not (1) dichotomize neurologic outcome as favorable vs unfavorable, (2) specify the timing of blood sampling or outcome determination, or (3) report diagnostic test accuracy or biomarker concentration. DATA EXTRACTION AND SYNTHESIS Data on the study design, inclusion and exclusion criteria, brain biomarkers levels, diagnostic test accuracy, and neurologic outcome were recorded. This study was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guideline. MAIN OUTCOMES AND MEASURES Summary receiver operating characteristic curve analysis was used to calculate the area under the curve, sensitivity, specificity, and optimal thresholds for each biomarker. Risk of bias and concerns of applicability were assessed with the Quality Assessment of Diagnostic Accuracy Studies (QUADAS-2) tool. RESULTS We identified 2953 studies, of which 86 studies with 10 567 patients (7777 men [73.6] and 2790 women [26.4]; pooled mean [SD] age, 62.8 [10.2] years) were included. Biomarker analysis at 48 hours after ROSC demonstrated that neurofilament light had the highest predictive value for unfavorable neurologic outcome, with an area under the curve of 0.92 (95% CI, 0.84-0.97). Subgroup analyses of patients treated with targeted temperature management and those who specifically had an out-of-hospital cardiac arrest showed similar results (targeted temperature management, 0.92 [95% CI, 0.86-0.95] and out-of-hospital cardiac arrest, 0.93 [95% CI, 0.86-0.97]). CONCLUSIONS AND RELEVANCE Neurofilament light, which reflects white matter damage and axonal injury, yielded the highest accuracy in predicting neurologic outcome in patients with HIBI at 48 hours after ROSC. TRIAL REGISTRATION PROSPERO Identifier: CRD42020157366.
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Affiliation(s)
- Ryan L. Hoiland
- Department of Anesthesiology, Pharmacology, and Therapeutics, Faculty of Medicine, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada,Centre for Heart, Lung, and Vascular Health, School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, British Columbia, Canada,Department of Cellular and Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada,International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, British Columbia, Canada
| | - Kiran J. K. Rikhraj
- Department of Emergency Medicine, Faculty of Medicine, University of British Columbia, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Sharanjit Thiara
- Division of Critical Care Medicine, Department of Medicine, Faculty of Medicine, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Christopher Fordyce
- Division of Cardiology, Department of Medicine, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Andreas H. Kramer
- Department of Critical Care Medicine, Foothills Medical Center, University of Calgary, Calgary, Alberta, Canada
| | - Markus B. Skrifvars
- Department of Emergency Medicine and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Cheryl L. Wellington
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, British Columbia, Canada,Department of Pathology and Laboratory Medicine, Faculty of Medicine, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada,Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Donald E. Griesdale
- Department of Anesthesiology, Pharmacology, and Therapeutics, Faculty of Medicine, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada,Division of Critical Care Medicine, Department of Medicine, Faculty of Medicine, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada,Centre for Clinical Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Nicholas A. Fergusson
- Faculty of Medicine, University of British Columbia, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Mypinder S. Sekhon
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, British Columbia, Canada,Division of Critical Care Medicine, Department of Medicine, Faculty of Medicine, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada,Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
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14
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Han Chin Y, Yu Leon Yaow C, En Teoh S, Zhi Qi Foo M, Luo N, Graves N, Eng Hock Ong M, Fu Wah Ho A. Long-term outcomes after out-of-hospital cardiac arrest: a systematic review and meta-analysis. Resuscitation 2021; 171:15-29. [PMID: 34971720 DOI: 10.1016/j.resuscitation.2021.12.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/21/2021] [Accepted: 12/21/2021] [Indexed: 12/21/2022]
Abstract
AIMS Long term outcomes after out-of-hospital cardiac arrest (OHCA) are not well understood. This study aimed to evaluate the long-term (1-year and beyond) survival outcomes, including overall survival and survival with favorable neurological status and the quality-of-life (QOL) outcomes, among patients who survived the initial OHCA event (30 days or till hospital discharge). METHODS Embase, Medline and PubMed were searched for primary studies (randomized controlled trials, cohort and cross-sectional studies) which reported the long-term survival outcomes of OHCA patients. Data abstraction and quality assessment was conducted, and survival at predetermined timepoints were assessed via single-arm meta-analyses of proportions, using generalized linear mixed models. Comparative meta-analyses were conducted using the Mantel-Haenszel Risk Ratio (RR) estimates, using the DerSimonian and Laird model. RESULTS 67 studies were included, and among patients that survived to hospital discharge or 30-days, 77.3% (CI=71.2-82.4), 69.6% (CI=54.5-70.3), 62.7% (CI=54.5-70.3), 46.5% (CI=32.0-61.6), and 20.8% (CI=7.8-44.9) survived to 1-, 3-, 5-, 10- and 15-years respectively. Compared to Asia, the probability of 1-year survival was greater in Europe (RR=2.1, CI=1.8-2.3), North America (RR=2.0, CI=1.7-2.2) and Oceania (RR=1.9,CI=1.6-2.1). Males had a higher 1-year survival (RR:1.41, CI=1.25-1.59), and patients with initial shockable rhythm had improved 1-year (RR=3.07, CI=1.78-5.30) and 3-year survival (RR=1.45, CI=1.19-1.77). OHCA occurring in residential locations had worse 1-year survival (RR=0.42, CI=0.25-0.73). CONCLUSION Our study found that up to 20.8% of OHCA patients survived to 15-years, and survival was lower in Asia compared to the other regions. Further analysis on the differences in survival between the regions are needed to direct future long-term treatment of OHCA patients.
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Affiliation(s)
- Yip Han Chin
- School of Medicine, National University Singapore, Singapore, Singapore
| | | | - Seth En Teoh
- School of Medicine, National University Singapore, Singapore, Singapore
| | - Mabel Zhi Qi Foo
- Department of Emergency Medicine, Singapore General Hospital, Singapore
| | - Nan Luo
- Saw Swee Hock School of Public Health, National University Singapore, Singapore
| | - Nicholas Graves
- Pre-hospital and Emergency Research Centre, Duke-NUS Medical School, Singapore
| | - Marcus Eng Hock Ong
- Department of Emergency Medicine, Singapore General Hospital, Singapore; Pre-hospital and Emergency Research Centre, Duke-NUS Medical School, Singapore
| | - Andrew Fu Wah Ho
- Department of Emergency Medicine, Singapore General Hospital, Singapore; Saw Swee Hock School of Public Health, National University Singapore, Singapore; Pre-hospital and Emergency Research Centre, Duke-NUS Medical School, Singapore.
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15
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Chelly J, Plantefève G, Kamel T, Bruel C, Nseir S, Lai C, Cirillo G, Skripkina E, Ehrminger S, Berdaguer-Ferrari FD, Le Marec J, Paul M, Autret A, Deye N. Incidence, clinical characteristics, and outcome after unexpected cardiac arrest among critically ill adults with COVID-19: insight from the multicenter prospective ACICOVID-19 registry. Ann Intensive Care 2021; 11:155. [PMID: 34773516 PMCID: PMC8590126 DOI: 10.1186/s13613-021-00945-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 10/27/2021] [Indexed: 01/28/2023] Open
Abstract
Background Initial reports have described the poor outcome of unexpected cardiac arrest (CA) in intensive care unit (ICU) among COVID-19 patients in China and the USA. However, there are scarce data on characteristics and outcomes of such CA patients in Europe. Methods Prospective registry in 35 French ICUs, including all in-ICU CA in COVID-19 adult patients with cardiopulmonary resuscitation (CPR) attempt. Favorable outcome was defined as modified Rankin scale ranging from 0 to 3 at day 90 after CA. Results Among the 2425 COVID-19 patients admitted to ICU from March to June 2020, 186 (8%) experienced in-ICU CA, of whom 146/186 (78%) received CPR. Among these 146 patients, 117 (80%) had sustained return of spontaneous circulation, 102 (70%) died in the ICU, including 48 dying within the first day after CA occurrence and 21 after withdrawal of life-sustaining therapy. Most of CA were non-shockable rhythm (90%). At CA occurrence, 132 patients (90%) were mechanically ventilated, 83 (57%) received vasopressors and 75 (51%) had almost three organ failures. Thirty patients (21%) had a favorable outcome. Sepsis-related organ failure assessment score > 9 before CA occurrence was the single parameter constantly associated with unfavorable outcome in multivariate analysis. Conclusions In-ICU CA incidence remains high among a large multicenter cohort of French critically ill adults with COVID-19. However, 21% of patients with CPR attempt remained alive at 3 months with good functional status. This contrasts with other recent reports showing poor outcome in such patients. Trial registration: This study was retrospectively registered in ClinicalTrials.gov (NTC04373759) in April 2020 (https://www.clinicaltrials.gov/ct2/show/NCT04373759?term=acicovid&draw=2&rank=1). Supplementary Information The online version contains supplementary material available at 10.1186/s13613-021-00945-y.
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Affiliation(s)
- Jonathan Chelly
- Intensive Care Unit, Centre Hospitalier Intercommunal Toulon-La Seyne sur Mer, Hôpital Sainte Musse, 54 rue Henri Sainte Claire Deville, 83056, Toulon, France.
| | - Gaetan Plantefève
- Intensive Care Unit, Centre Hospitalier Victor Dupouy, Argenteuil, France
| | - Toufik Kamel
- Intensive Care Unit, Centre Hospitalier Régional d'Orléans, Orléans. Inserm UMR1153, ECSTRRA, Université de Paris, Paris, France
| | - Cédric Bruel
- Intensive Care Unit, Groupe Hospitalier Paris Saint Joseph, Paris, France
| | - Saad Nseir
- Médecine Intensive Réanimation, CHU Lille, Inserm U1285, Université de Lille, CNRS, UMR 8576-UGSF, Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Christopher Lai
- Medical Intensive Care Unit, Hôpital de Bicêtre, Université Paris-Saclay, Assistance Publique Hôpitaux de Paris (AP-HP), Le Kremlin-Bicêtre, France
| | - Giulia Cirillo
- Intensive Care Department, Groupe Hospitalier Sud Ile de France, Melun, France
| | - Elena Skripkina
- Service d'anesthésie-réanimation chirurgicale, DMU CARE, DHU A-TVB, Assistance Publique Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, Créteil, France
| | - Sébastien Ehrminger
- Intensive Care Unit, Grand Hôpital de l'Est Francilien-site de Marne la Vallée, Jossigny, France
| | | | - Julien Le Marec
- Intensive Care Unit, Département R3S, Pitié-Salpétrière hospital, Assistance Publique Hôpitaux de Paris (AP-HP), Sorbonne Université, Paris, France
| | - Marine Paul
- Intensive Care Unit, Centre Hospitalier de Versailles-site André Mignot, Le Chesnay, France
| | - Aurélie Autret
- Clinical Research Department, Centre Hospitalier Intercommunal Toulon-La Seyne sur Mer, Toulon, France
| | - Nicolas Deye
- Medical and Toxicological Intensive Care Unit, Inserm U942, Assistance Publique Hôpitaux de Paris (AP-HP), Centre Hospitalier Universitaire Lariboisière, Paris, France
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16
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Holmström E, Efendijev I, Raj R, Pekkarinen PT, Litonius E, Skrifvars MB. Intensive care-treated cardiac arrest: a retrospective study on the impact of extended age on mortality, neurological outcome, received treatments and healthcare-associated costs. Scand J Trauma Resusc Emerg Med 2021; 29:103. [PMID: 34321064 PMCID: PMC8317381 DOI: 10.1186/s13049-021-00923-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 07/16/2021] [Indexed: 11/10/2022] Open
Abstract
Background Cardiac arrest (CA) is a leading cause of death worldwide. As population ages, the need for research focusing on CA in elderly increases. This study investigated treatment intensity, 12-month neurological outcome, mortality and healthcare-associated costs for patients aged over 75 years treated for CA in an intensive care unit (ICU) of a tertiary hospital. Methods This single-centre retrospective study included adult CA patients treated in a Finnish tertiary hospital’s ICU between 2005 and 2013. We stratified the study population into two age groups: <75 and \documentclass[12pt]{minimal}
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\begin{document}$$\ge$$\end{document}≥75 years. We compared interventions defined by the median daily therapeutic scoring system (TISS-76) between the age groups to find differences in treatment intensity. We calculated cost-effectiveness by dividing the total one-year healthcare-associated costs of all patients by the number of survivors with a favourable neurological outcome. Favourable outcome was defined as a cerebral performance category (CPC) of 1–2 at 12 months after cardiac arrest. Logistic regression analysis was used to identify independent associations between age group, mortality and neurological outcome. Results This study included a total of 1,285 patients, of which 212 (16 %) were \documentclass[12pt]{minimal}
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\begin{document}$$\ge$$\end{document}≥75 years of age. Treatment intensity was lower for the elderly compared to the younger group, with median TISS scores of 116 and 147, respectively (p < 0.001). The effective cost in euros for patients with a good one-year neurological outcome was €168,000 for the elderly and €120,000 for the younger group. At 12 months after CA 24 % of the patients in the elderly group and 47 % of the patients in the younger group had a CPC of 1–2 (p < 0.001). Age was an independent predictor of mortality (multivariate OR = 2.90, 95 % CI: 1.94–4.31, p < 0.001) and neurological outcome (multivariate OR = 3.15, 95 % CI: 2.04–4.86, p < 0.001). Conclusions The elderly ICU-treated CA patients in this study had worse neurological outcomes, higher mortality and lower cost-effectiveness than younger patients. Elderly received less intense treatment. Further efforts are needed to recognize the tools for assessing which elderly patients benefit from a more aggressive treatment approach in order to improve the cost-effectiveness of post-CA management. Supplementary Information The online version contains supplementary material available at 10.1186/s13049-021-00923-0.
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Affiliation(s)
- Ester Holmström
- Department of Emergency Care and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | - Ilmar Efendijev
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Rahul Raj
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Pirkka T Pekkarinen
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Erik Litonius
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Markus B Skrifvars
- Department of Emergency Care and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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17
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Heo JH, Kim T, Shin J, Suh GJ, Kim J, Jung YS, Park SM, Kim S. Prediction of Neurological Outcomes in Out-of-hospital Cardiac Arrest Survivors Immediately after Return of Spontaneous Circulation: Ensemble Technique with Four Machine Learning Models. J Korean Med Sci 2021; 36:e187. [PMID: 34282605 PMCID: PMC8289719 DOI: 10.3346/jkms.2021.36.e187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 06/14/2021] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND We performed this study to establish a prediction model for 1-year neurological outcomes in out-of-hospital cardiac arrest (OHCA) patients who achieved return of spontaneous circulation (ROSC) immediately after ROSC using machine learning methods. METHODS We performed a retrospective analysis of an OHCA survivor registry. Patients aged ≥ 18 years were included. Study participants who had registered between March 31, 2013 and December 31, 2018 were divided into a develop dataset (80% of total) and an internal validation dataset (20% of total), and those who had registered between January 1, 2019 and December 31, 2019 were assigned to an external validation dataset. Four machine learning methods, including random forest, support vector machine, ElasticNet and extreme gradient boost, were implemented to establish prediction models with the develop dataset, and the ensemble technique was used to build the final prediction model. The prediction performance of the model in the internal validation and the external validation dataset was described with accuracy, area under the receiver-operating characteristic curve, area under the precision-recall curve, sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV). Futhermore, we established multivariable logistic regression models with the develop set and compared prediction performance with the ensemble models. The primary outcome was an unfavorable 1-year neurological outcome. RESULTS A total of 1,207 patients were included in the study. Among them, 631, 139, and 153 were assigned to the develop, the internal validation and the external validation datasets, respectively. Prediction performance metrics for the ensemble prediction model in the internal validation dataset were as follows: accuracy, 0.9620 (95% confidence interval [CI], 0.9352-0.9889); area under receiver-operator characteristics curve, 0.9800 (95% CI, 0.9612-0.9988); area under precision-recall curve, 0.9950 (95% CI, 0.9860-1.0000); sensitivity, 0.9594 (95% CI, 0.9245-0.9943); specificity, 0.9714 (95% CI, 0.9162-1.0000); PPV, 0.9916 (95% CI, 0.9752-1.0000); NPV, 0.8718 (95% CI, 0.7669-0.9767). Prediction performance metrics for the model in the external validation dataset were as follows: accuracy, 0.8509 (95% CI, 0.7825-0.9192); area under receiver-operator characteristics curve, 0.9301 (95% CI, 0.8845-0.9756); area under precision-recall curve, 0.9476 (95% CI, 0.9087-0.9867); sensitivity, 0.9595 (95% CI, 0.9145-1.0000); specificity, 0.6500 (95% CI, 0.5022-0.7978); PPV, 0.8353 (95% CI, 0.7564-0.9142); NPV, 0.8966 (95% CI, 0.7857-1.0000). All the prediction metrics were higher in the ensemble models, except NPVs in both the internal and the external validation datasets. CONCLUSION We established an ensemble prediction model for prediction of unfavorable 1-year neurological outcomes in OHCA survivors using four machine learning methods. The prediction performance of the ensemble model was higher than the multivariable logistic regression model, while its performance was slightly decreased in the external validation dataset.
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Affiliation(s)
- Ji Han Heo
- Department of Emergency Medicine, Seoul National University Hospital, Seoul, Korea
- Interdisciplinary Program in Bioengineering, Graduate School, Seoul National University, Seoul, Korea
| | - Taegyun Kim
- Department of Emergency Medicine, Seoul National University Hospital, Seoul, Korea
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Korea.
| | - Jonghwan Shin
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Korea
- Department of Emergency Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea.
| | - Gil Joon Suh
- Department of Emergency Medicine, Seoul National University Hospital, Seoul, Korea
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Joonghee Kim
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yoon Sun Jung
- Division of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea
| | - Seung Min Park
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sungwan Kim
- Department of Biomedical Engineering, College of Medicine and Institute of Medical & Biological Engineering, Medical Research Center, Seoul National University, Seoul, Korea
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Serum fibroblast growth factor 21 levels after out of hospital cardiac arrest are associated with neurological outcome. Sci Rep 2021; 11:690. [PMID: 33436812 PMCID: PMC7804444 DOI: 10.1038/s41598-020-80086-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 12/15/2020] [Indexed: 11/08/2022] Open
Abstract
Fibroblast growth factor (FGF) 21 is a marker associated with mitochondrial and cellular stress. Cardiac arrest causes mitochondrial stress, and we tested if FGF 21 would reflect the severity of hypoxia-reperfusion injury after cardiac arrest. We measured serum concentrations of FGF 21 in 112 patients on ICU admission and 24, 48 and 72 h after out-of-hospital cardiac arrest with shockable initial rhythm included in the COMACARE study (NCT02698917). All patients received targeted temperature management for 24 h. We defined 6-month cerebral performance category 1–2 as good and 3–5 as poor neurological outcome. We used samples from 40 non-critically ill emergency room patients as controls. We assessed group differences with the Mann Whitney U test and temporal differences with linear modeling with restricted maximum likelihood estimation. We used multivariate logistic regression to assess the independent predictive value of FGF 21 concentration for neurologic outcome. The median (inter-quartile range, IQR) FGF 21 concentration was 0.25 (0.094–0.91) ng/ml in controls, 0.79 (0.37–1.6) ng/ml in patients at ICU admission (P < 0.001 compared to controls) and peaked at 48 h [1.2 (0.46–2.5) ng/ml]. We found no association between arterial blood oxygen partial pressure and FGF 21 concentrations. We observed with linear modeling an effect of sample timepoint (F 5.6, P < 0.01), poor neurological outcome (F 6.1, P = 0.01), and their interaction (F 3.0, P = 0.03), on FGF 21 concentration. In multivariate logistic regression analysis, adjusting for relevant clinical covariates, higher average FGF 21 concentration during the first 72 h was independently associated with poor neurological outcome (odds ratio 1.60, 95% confidence interval 1.10–2.32). We conclude that post cardiac arrest patients experience cellular and mitochondrial stress, reflected as a systemic FGF 21 response. This response is higher with a more severe hypoxic injury but it is not exacerbated by hyperoxia.
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Luostarinen T, Satopää J, Skrifvars MB, Reinikainen M, Bendel S, Curtze S, Sibolt G, Martinez-Majander N, Raj R. Early surgery for superficial supratentorial spontaneous intracerebral hemorrhage: a Finnish Intensive Care Consortium study. Acta Neurochir (Wien) 2020; 162:3153-3160. [PMID: 32601805 PMCID: PMC7593281 DOI: 10.1007/s00701-020-04470-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/18/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND The benefits of early surgery in cases of superficial supratentorial spontaneous intracerebral hemorrhage (ICH) are unclear. This study aimed to assess the association between early ICH surgery and outcome, as well as the cost-effectiveness of early ICH surgery. METHODS We conducted a retrospective, register-based multicenter study that included all patients who had been treated for supratentorial spontaneous ICH in four tertiary intensive care units in Finland between 2003 and 2013. To be included, patients needed to have experienced supratentorial ICHs that were 10-100 cm3 and located within 10 mm of the cortex. We used a multivariable analysis, adjusting for the severity of the illness and the probability of surgical treatment, to assess the independent association between early ICH surgery (≤ 1 day), 12-month mortality rates, and the probability of survival without permanent disability. In addition, we assessed the cost-effectiveness of ICH surgery by examining the effective cost per 1-year survivor (ECPS) and per independent survivor (ECPIS). RESULTS Of 254 patients, 27% were in the early surgery group. Overall 12-month mortality was 39%, while 29% survived without a permanent disability. According to our multivariable analysis, early ICH surgery was associated with lower 12-month mortality rates (odds ratio [OR] 0.22, 95% confidence intervals [CI] 0.10-0.51), but not with a higher probability of survival without permanent disability (OR 1.23, 95% CI 0.59-2.56). For the early surgical group, the ECPS and ECPIS were €111,409 and €334,227, respectively. For the non-surgical cohort, the ECPS and ECPIS were €76,074 and €141,471, respectively. CONCLUSIONS Early surgery for superficial ICH is associated with a lower 12-month mortality risk but not with a higher probability of survival without a permanent disability. Further, costs were higher and cost-effectiveness was, thus, worse for the early surgical cohort.
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Affiliation(s)
- Teemu Luostarinen
- Division of Anesthesiology, Department of Anesthesiology, Intensive Care, and Pain Medicine, Helsinki University Hospital and University of Helsinki, Topeliuksenkatu 5, PO BOX 266, 00029 HUS, Helsinki, Finland.
| | - Jarno Satopää
- Department of Neurosurgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Markus B Skrifvars
- Department of Emergency Care and Services, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Matti Reinikainen
- Department of Anesthesiology and Intensive Care, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
| | - Stepani Bendel
- Department of Anesthesiology and Intensive Care, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
| | - Sami Curtze
- Department of Neurology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Gerli Sibolt
- Department of Neurology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | | | - Rahul Raj
- Department of Neurosurgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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Mikkonen ED, Skrifvars MB, Reinikainen M, Bendel S, Laitio R, Hoppu S, Ala-Kokko T, Karppinen A, Raj R. One-year costs of intensive care in pediatric patients with traumatic brain injury. J Neurosurg Pediatr 2020; 27:79-86. [PMID: 33065534 DOI: 10.3171/2020.6.peds20189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 06/08/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Traumatic brain injury (TBI) is a major cause of death and disability in the pediatric population. The authors assessed 1-year costs of intensive care in pediatric TBI patients. METHODS In this retrospective multicenter cohort study of four academic ICUs in Finland, the authors used the Finnish Intensive Care Consortium database to identify children aged 0-17 years treated for TBI in ICUs between 2003 and 2013. The authors reviewed all patient health records and head CT scans for admission, treatment, and follow-up data. Patient outcomes included functional outcome (favorable outcome defined as a Glasgow Outcome Scale score of 4-5) and death within 6 months. Costs included those for the index hospitalization, rehabilitation, and social security up to 1 year after injury. To assess costs, the authors calculated the effective cost per favorable outcome (ECPFO). RESULTS In total, 293 patients were included, of whom 61% had moderate to severe TBI (Glasgow Coma Scale [GCS] score 3-12) and 40% were ≥ 13 years of age. Of all patients, 82% had a favorable outcome and 9% died within 6 months of injury. The mean cost per patient was €48,719 ($54,557) (95% CI €41,326-€56,112). The index hospitalization accounted for 66%, rehabilitation costs for 27%, and social security costs for 7% of total healthcare costs. The ECPFO was €59,727 ($66,884) (95% CI €52,335-€67,120). A higher ECPFO was observed among patients with clinical and treatment-related variables indicative of parenchymal swelling and high intracranial pressure. Lower ECPFO was observed among patients with higher admission GCS scores and those who had epidural hematomas. CONCLUSIONS Greater injury severity increases ECPFO and is associated with higher postdischarge costs in pediatric TBI patients. In this pediatric cohort, over two-thirds of all resources were spent on patients with favorable functional outcome, indicating appropriate resource allocation.
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Affiliation(s)
- Era D Mikkonen
- 1Department of Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden, and University of Helsinki
| | - Markus B Skrifvars
- 2Department of Emergency Care and Services, Helsinki University Hospital, and University of Helsinki
| | - Matti Reinikainen
- 3Department of Anesthesiology and Intensive Care, Kuopio University Hospital, and University of Eastern Finland, Kuopio
| | - Stepani Bendel
- 3Department of Anesthesiology and Intensive Care, Kuopio University Hospital, and University of Eastern Finland, Kuopio
| | - Ruut Laitio
- 4Department of Intensive Care, Turku University Hospital, and University of Turku
| | - Sanna Hoppu
- 5Emergency Medical Services and Department of Intensive Care, Tampere University Hospital, and Tampere University, Tampere
| | - Tero Ala-Kokko
- 6Division of Intensive Care, Medical Research Center Oulu, Oulu University Hospital, Research Group of Anesthesiology, Surgery and Intensive Care Medicine, University of Oulu; and
| | - Atte Karppinen
- 7Department of Neurosurgery, Helsinki University Hospital, and University of Helsinki, Finland
| | - Rahul Raj
- 7Department of Neurosurgery, Helsinki University Hospital, and University of Helsinki, Finland
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Neurofilament light as an outcome predictor after cardiac arrest: a post hoc analysis of the COMACARE trial. Intensive Care Med 2020; 47:39-48. [PMID: 32852582 PMCID: PMC7782453 DOI: 10.1007/s00134-020-06218-9] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 08/14/2020] [Indexed: 01/30/2023]
Abstract
Purpose Neurofilament light (NfL) is a biomarker reflecting neurodegeneration and acute neuronal injury, and an increase is found following hypoxic brain damage. We assessed the ability of plasma NfL to predict outcome in comatose patients after out-of-hospital cardiac arrest (OHCA). We also compared plasma NfL concentrations between patients treated with two different targets of arterial carbon dioxide tension (PaCO2), arterial oxygen tension (PaO2), and mean arterial pressure (MAP). Methods We measured NfL concentrations in plasma obtained at intensive care unit admission and at 24, 48, and 72 h after OHCA. We assessed neurological outcome at 6 months and defined a good outcome as Cerebral Performance Category (CPC) 1–2 and poor outcome as CPC 3–5. Results Six-month outcome was good in 73/112 (65%) patients. Forty-eight hours after OHCA, the median NfL concentration was 19 (interquartile range [IQR] 11–31) pg/ml in patients with good outcome and 2343 (587–5829) pg/ml in those with poor outcome, p < 0.001. NfL predicted poor outcome with an area under the receiver operating characteristic curve (AUROC) of 0.98 (95% confidence interval [CI] 0.97–1.00) at 24 h, 0.98 (0.97–1.00) at 48 h, and 0.98 (0.95–1.00) at 72 h. NfL concentrations were lower in the higher MAP (80–100 mmHg) group than in the lower MAP (65–75 mmHg) group at 48 h (median, 23 vs. 43 pg/ml, p = 0.04). PaCO2 and PaO2 targets did not associate with NfL levels. Conclusions NfL demonstrated excellent prognostic accuracy after OHCA. Higher MAP was associated with lower NfL concentrations. Electronic supplementary material The online version of this article (10.1007/s00134-020-06218-9) contains supplementary material, which is available to authorized users.
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Carrick RT, Park JG, McGinnes HL, Lundquist C, Brown KD, Janes WA, Wessler BS, Kent DM. Clinical Predictive Models of Sudden Cardiac Arrest: A Survey of the Current Science and Analysis of Model Performances. J Am Heart Assoc 2020; 9:e017625. [PMID: 32787675 PMCID: PMC7660807 DOI: 10.1161/jaha.119.017625] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background More than 500 000 sudden cardiac arrests (SCAs) occur annually in the United States. Clinical predictive models (CPMs) may be helpful tools to differentiate between patients who are likely to survive or have good neurologic recovery and those who are not. However, which CPMs are most reliable for discriminating between outcomes in SCA is not known. Methods and Results We performed a systematic review of the literature using the Tufts PACE (Predictive Analytics and Comparative Effectiveness) CPM Registry through February 1, 2020, and identified 81 unique CPMs of SCA and 62 subsequent external validation studies. Initial cardiac rhythm, age, and duration of cardiopulmonary resuscitation were the 3 most commonly used predictive variables. Only 33 of the 81 novel SCA CPMs (41%) were validated at least once. Of 81 novel SCA CPMs, 56 (69%) and 61 of 62 validation studies (98%) reported discrimination, with median c‐statistics of 0.84 and 0.81, respectively. Calibration was reported in only 29 of 62 validation studies (41.9%). For those novel models that both reported discrimination and were validated (26 models), the median percentage change in discrimination was −1.6%. We identified 3 CPMs that had undergone at least 3 external validation studies: the out‐of‐hospital cardiac arrest score (9 validations; median c‐statistic, 0.79), the cardiac arrest hospital prognosis score (6 validations; median c‐statistic, 0.83), and the good outcome following attempted resuscitation score (6 validations; median c‐statistic, 0.76). Conclusions Although only a small number of SCA CPMs have been rigorously validated, the ones that have been demonstrate good discrimination.
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Affiliation(s)
- Richard T Carrick
- Predictive Analytics and Comparative Effectiveness Center Institute for Clinical Research and Health Policy Studies Tufts Medical Center Boston MA
| | - Jinny G Park
- Predictive Analytics and Comparative Effectiveness Center Institute for Clinical Research and Health Policy Studies Tufts Medical Center Boston MA
| | - Hannah L McGinnes
- Predictive Analytics and Comparative Effectiveness Center Institute for Clinical Research and Health Policy Studies Tufts Medical Center Boston MA
| | - Christine Lundquist
- Predictive Analytics and Comparative Effectiveness Center Institute for Clinical Research and Health Policy Studies Tufts Medical Center Boston MA
| | - Kristen D Brown
- Predictive Analytics and Comparative Effectiveness Center Institute for Clinical Research and Health Policy Studies Tufts Medical Center Boston MA
| | - W Adam Janes
- Predictive Analytics and Comparative Effectiveness Center Institute for Clinical Research and Health Policy Studies Tufts Medical Center Boston MA
| | - Benjamin S Wessler
- Predictive Analytics and Comparative Effectiveness Center Institute for Clinical Research and Health Policy Studies Tufts Medical Center Boston MA
| | - David M Kent
- Predictive Analytics and Comparative Effectiveness Center Institute for Clinical Research and Health Policy Studies Tufts Medical Center Boston MA
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Abstract
Cardiac arrest (CA) results in multiorgan ischemia until return of spontaneous circulation and often is followed by a low-flow shock state. Upon restoration of circulation and organ perfusion, resuscitative teams must act quickly to achieve clinical stability while simultaneously addressing the underlying etiology of the initial event. Optimal cardiovascular care demands focused management of the post-cardiac arrest syndrome and associated shock. Acute coronary syndrome should be considered and managed in a timely manner, because early revascularization improves patient outcomes and may suppress refractory arrhythmias. This review outlines the diagnostic and therapeutic considerations that define optimal cardiovascular care after CA.
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Affiliation(s)
- Barry Burstein
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Mayo Clinic, 200 First Street Southwest, Rochester, MN 55905, USA
| | - Jacob C Jentzer
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Mayo Clinic, 200 First Street Southwest, Rochester, MN 55905, USA; Department of Cardiovascular Medicine, Mayo Clinic, 200 First Street Southwest, Rochester, MN 55905, USA.
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Survival until hospital admission after out-of-hospital cardia arrest – A costly victory? Resuscitation 2020; 153:262-263. [DOI: 10.1016/j.resuscitation.2020.05.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 11/17/2022]
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Steinberg A, Callaway C, Dezfulian C, Elmer J. Are providers overconfident in predicting outcome after cardiac arrest? Resuscitation 2020; 153:97-104. [PMID: 32544415 DOI: 10.1016/j.resuscitation.2020.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/24/2020] [Accepted: 06/04/2020] [Indexed: 01/28/2023]
Abstract
AIM To quantify the accuracy of health care providers' predictions of survival and function at hospital discharge in a prospective cohort of patients resuscitated from cardiac arrest. To test whether self-reported confidence in their predictions was associated with increased accuracy and whether this relationship varied across providers. METHODOLOGY We presented critical care and neurology providers with clinical vignettes using real data from post-arrest patients. We asked providers to predict survival, function at discharge, and report their confidence in these predictions. We used mixed effects models to explore predictors of confidence, accuracy, and the relationship between the two. RESULTS We completed 470 assessments of 62 patients with 65 providers. Of patients, 49 (78%) died and 9 (15%) had functionally favourable survival. Providers accurately predicted survival in 308/470 (66%) assessments. In most errors (146/162, 90%), providers incorrectly predicted survival. Providers accurately predicted function in 349/470 (74%) assessments. In most errors (114/121, 94%), providers incorrectly predicted favourable functional recovery. Providers were confident (median confidence predicting survival 80 [IQR 60-90]; median confidence predicting function 80 [IQR 60-95]). Confidence explained 9% and 18% of variation in accuracy predicting survival and function, respectively. We observed significant between-provider variability in accuracy (median odds ratio (MOR) for predicting survival 2.93, 95%CI 1.94-5.52; MOR for predicting function 5.42, 95%CI 3.01-13.2). CONCLUSIONS Providers varied in accuracy predicting post-arrest outcomes and most errors were optimistic. Self-reported confidence explained little variation in accuracy.
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Affiliation(s)
- Alexis Steinberg
- University of Pittsburgh, Department of Critical Care Medicine and Neurology, Pittsburgh, PA, USA.
| | - Clifton Callaway
- University of Pittsburgh, Department of Emergency Medicine, Pittsburgh, PA, USA.
| | - Cameron Dezfulian
- University of Pittsburgh, Department of Critical Care Medicine, Pittsburgh, PA, USA.
| | - Jonathan Elmer
- University of Pittsburgh, Department of Critical Care Medicine, Emergency Medicine and Neurology, Pittsburgh, PA, USA.
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Unexpected cardiac arrests occurring inside the ICU: outcomes of a French prospective multicenter study. Intensive Care Med 2020; 46:1005-1015. [DOI: 10.1007/s00134-020-05992-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 02/26/2020] [Indexed: 11/30/2022]
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Lundin A, Karlsson T, Herlitz J, Lundgren P, Rylander C. The association between duration of mechanical ventilation and survival in post cardiac arrest patients. Resuscitation 2020; 148:145-151. [PMID: 32004666 DOI: 10.1016/j.resuscitation.2020.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 12/17/2019] [Accepted: 01/13/2020] [Indexed: 10/25/2022]
Abstract
PURPOSE To assess the association between the duration of mechanical ventilation during post resuscitation care and 30-day survival after cardiac arrest. METHODS We conducted a retrospective observational study using data from two national registries. Comatose cardiac arrest patients admitted to general intensive care in Swedish hospitals between 2011 and 2016 were eligible. Based on the median duration of mechanical ventilation for patients who did not survive to hospital discharge, used as a proxy for the endurance of post resuscitation care, the hospitals were divided into four ordered groups for which association with 30-day survival was analyzed. RESULTS In total, 5.113 patients in 56 hospitals were included. Median duration of mechanical ventilation for patients who did not survive to hospital discharge ranged from 17 h in hospital group 1-51 hours in hospital group 4. After adjustment for baseline characteristics, 30-day survival in the entire cohort was positively and independently associated with ordered hospital group: (adjusted odds ratio (95%CI); 1.12 (1.02,1.23); p = 0.02). Thus, hospitals with a longer duration of mechanical ventilation among non-survivors had better survival rate among patients admitted to ICU after a cardiac arrest. However, in a secondary analysis restricted to patients with length of stay in the intensive care unit ≥ 48 h, there was no significant association between 30-day survival and ordered hospital group. CONCLUSION A tendency for longer duration of post resuscitation care in the ICU was associated with higher 30-day survival in comatose patients admitted to intensive care after cardiac arrest.
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Affiliation(s)
- Andreas Lundin
- Department of Anaesthesiology and Intensive Care Medicine, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - Thomas Karlsson
- Health Metrics at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Johan Herlitz
- Prehospen - Centre for Prehospital Research, University of Borås and Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Peter Lundgren
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg and Prehospen - Centre for Prehospital Research, University of Borås, Sweden
| | - Christian Rylander
- Department of Anaesthesiology and Intensive Care Medicine, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Tirkkonen J, Skrifvars MB, Parr M, Tamminen T, Aneman A. In-hospital cardiac arrest in hospitals with mature rapid response systems - a multicentre, retrospective cohort study. Resuscitation 2020; 149:109-116. [PMID: 32114070 DOI: 10.1016/j.resuscitation.2020.02.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/12/2020] [Accepted: 02/21/2020] [Indexed: 10/24/2022]
Abstract
AIM To investigate in-hospital cardiac arrests (IHCAs) according to the Ustein template in hospitals with mature systems utilizing rapid response teams (RRTs), with a special reference to preceding RRT factors and factors associated with a favourable neurological outcome (cerebral performance category (CPC) 1-2) at hospital discharge. METHODS Multicentre, retrospective cohort study between 2017-2018 including two Finnish and one Australian university affiliated tertiary hospitals. RESULTS A total 309 IHCAs occurred with an incidence of 0.78 arrests per 1000 hospital admissions. The median age of the patients was 72 years, 63% were male and 73% had previously lived a fully independent life with a median Charlson comorbidity index of two. Before the IHCA, 16% of the patients had been reviewed by RRTs and 26% of the patients fulfilled RRT activation criteria in the preceding 8 h of the IHCA. Return of spontaneous circulation was achieved in 53% of the patients and 28% were discharged from hospital with CPC 1-2. In a multivariable model, younger age, no pre-arrest RRT criteria, arrest in normal work hours, witnessed arrest and shockable initial rhythm were independently associated with CPC 1-2 at hospital discharge. CONCLUSIONS In hospitals with mature rapid response systems most IHCA patients live a fully independent life with low burden of comorbid diseases before their hospital admission, the IHCA incidence is low and outcome better than traditionally believed. Deterioration before IHCA is present in a significant number of patients and improved monitoring and earlier interventions may further improve outcomes.
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Affiliation(s)
- Joonas Tirkkonen
- Department of Intensive Care Medicine and Department of Emergency, Anaesthesia and Pain Medicine, Tampere University Hospital, Tampere, Finland. PO Box 2000, FI-33521 Tampere, Finland; Intensive Care Unit, Liverpool Hospital, Sydney, Australia. Cnr Elizabeth and Goulburn Sts, Liverpool, NSW 2170, Australia.
| | - Markus B Skrifvars
- Department of Emergency Care and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. PO Box 22, FI-00014 Helsinki, Finland.
| | - Michael Parr
- Intensive Care Unit, Liverpool Hospital, Sydney, Australia. Cnr Elizabeth and Goulburn Sts, Liverpool, NSW 2170, Australia; South Western Sydney Clinical School, University of New South Wales, Liverpool Hospital, Sydney, Australia. Cnr Elizabeth and Goulburn Sts, Liverpool, NSW 2170, Australia.
| | - Tero Tamminen
- Division of Intensive Care, Department of Anaesthesiology, Intensive Care and Pain Medicine, Helsinki University and Helsinki University Hospital. PO Box 22, FI-00014 Helsinki, Finland.
| | - Anders Aneman
- Intensive Care Unit, Liverpool Hospital, Sydney, Australia. Cnr Elizabeth and Goulburn Sts, Liverpool, NSW 2170, Australia; South Western Sydney Clinical School, University of New South Wales, Liverpool Hospital, Sydney, Australia. Cnr Elizabeth and Goulburn Sts, Liverpool, NSW 2170, Australia; Faculty of Medicine and Health Sciences, Macquarie University, 75 Talavera Rd, Macquarie University, NSW 2109, Australia.
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Extracorporeal membrane oxygenation for refractory cardiac arrest: a retrospective multicenter study. Intensive Care Med 2020; 46:973-982. [DOI: 10.1007/s00134-020-05926-6] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 01/08/2020] [Indexed: 11/26/2022]
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Jäämaa-Holmberg S, Salmela B, Suojaranta R, Lemström KB, Lommi J. Cost-utility of venoarterial extracorporeal membrane oxygenation in cardiogenic shock and cardiac arrest. EUROPEAN HEART JOURNAL-ACUTE CARDIOVASCULAR CARE 2020; 9:333-341. [PMID: 32004079 DOI: 10.1177/2048872619900090] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND The use of venoarterial extracorporeal membrane oxygenation in cardiogenic shock keeps increasing, but its cost-utility is unknown. METHODS We studied retrospectively the cost-utility of venoarterial extracorporeal membrane oxygenation in a five-year cohort of consequent patients treated due to refractory cardiogenic shock or cardiac arrest in a transplant centre in 2013-2017. In our centre, venoarterial extracorporeal membrane oxygenation is considered for all cardiogenic shock patients potentially eligible for heart transplantation, and for selected postcardiotomy patients. We assessed the costs of the index hospitalization and of the one-year hospital costs, and the patients' health-related quality of life (response rate 71.7%). Based on the data and the population-based life expectancies, we calculated the amount and the costs of quality-adjusted life years gained both without discount and with an annual discount of 3.5%. RESULTS The cohort included 102 patients (78 cardiogenic shock; 24 cardiac arrest) of whom 67 (65.7%) survived to discharge and 66 (64.7%) to one year. The effective costs per one hospital survivor were 242,303€. Median in-hospital costs of the index hospitalization per patient were 129,967€ (interquartile range 150,340€). Mean predicted number of quality-adjusted life years gained by the treatment was 20.9 (standard deviation 9.7) without discount, and the median cost per quality-adjusted life year was 7474€ (interquartile range 10,973€). With the annual discount of 3.5%, 13.0 (standard deviation 4.8) quality-adjusted life years were gained with the cost of 12,642€ per quality-adjusted life year (interquartile range 15,059€). CONCLUSIONS We found the use of venoarterial extracorporeal membrane oxygenation in refractory cardiogenic shock and cardiac arrest justified from the cost-utility point of view in a transplant centre setting.
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Affiliation(s)
- Salla Jäämaa-Holmberg
- Heart and Lung Center, Helsinki University Hospital, Finland.,Faculty of Medicine, University of Helsinki, Finland
| | | | | | - Karl B Lemström
- Heart and Lung Center, Helsinki University Hospital, Finland.,Faculty of Medicine, University of Helsinki, Finland
| | - Jyri Lommi
- Heart and Lung Center, Helsinki University Hospital, Finland
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Rosenthal LM, Leithner C, Tong G, Streitberger KJ, Krech J, Storm C, Schmitt KRL. RBM3 and CIRP expressions in targeted temperature management treated cardiac arrest patients-A prospective single center study. PLoS One 2019; 14:e0226005. [PMID: 31821351 PMCID: PMC6903712 DOI: 10.1371/journal.pone.0226005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 11/17/2019] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Management of cardiac arrest patients includes active body temperature control and strict prevention of fever to avoid further neurological damage. Cold-shock proteins RNA-binding motif 3 (RBM3) and cold inducible RNA-binding protein (CIRP) expressions are induced in vitro in response to hypothermia and play a key role in hypothermia-induced neuroprotection. OBJECTIVE To measure gene expressions of RBM3, CIRP, and inflammatory biomarkers in whole blood samples from targeted temperature management (TTM)-treated post-cardiac arrest patients for the potential application as clinical biomarkers for the efficacy of TTM treatment. METHODS A prospective single center trial with the inclusion of 22 cardiac arrest patients who were treated with TTM (33°C for 24 hours) after ROSC was performed. RBM3, CIRP, interleukin 6 (IL-6), monocyte chemotactic protein 1 (MCP-1), and inducible nitric oxide synthase (iNOS) mRNA expressions were quantified by RT-qPCR. Serum RBM3 protein concentration was quantified using an enzyme-linked immunosorbent assay (ELISA). RESULTS RBM3 mRNA expression was significantly induced in post-cardiac arrest patients in response to TTM. RBM3 mRNA was increased 2.2-fold compared to before TTM. A similar expression kinetic of 1.4-fold increase was observed for CIRP mRNA, but did not reached significancy. Serum RBM3 protein was not increased in response to TTM. IL-6 and MCP-1 expression peaked after ROSC and then significantly decreased. iNOS expression was significantly increased 24h after return of spontaneous circulation (ROSC) and TTM. CONCLUSIONS RBM3 is temperature regulated in patients treated with TTM after CA and ROSC. RBM3 is a possible biomarker candidate to ensure the efficacy of TTM treatment in post-cardiac arrest patients and its pharmacological induction could be a potential future intervention strategy that warrants further research.
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Affiliation(s)
- Lisa-Maria Rosenthal
- Dept. for Congenital Heart Disease/Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
- Berlin Institute of Health, Berlin, Germany
| | - Christoph Leithner
- Dept. of Neurology, Charité Universtitätsmedizin Berlin, Berlin, Germany
| | - Giang Tong
- Dept. for Congenital Heart Disease/Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
| | - Kaspar Josche Streitberger
- Berlin Institute of Health, Berlin, Germany
- Dept. of Neurology, Charité Universtitätsmedizin Berlin, Berlin, Germany
| | - Jana Krech
- Dept. for Congenital Heart Disease/Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
| | - Christian Storm
- Dept. of Internal Medicine, Nephrology and Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Katharina Rose Luise Schmitt
- Dept. for Congenital Heart Disease/Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
- Dept. for Pediatric Cardiology, Charité Universitätsmedizin Berlin, Berlin, Germany
- DHZK (German Centre for Cardiovascular Research), Berlin, Germany
- * E-mail:
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Ruch R, Stoessel L, Stein P, Ganter MT, Button DA. Outcome, quality of life and direct costs after out-of-hospital cardiac arrest in an urban region of Switzerland. Scand J Trauma Resusc Emerg Med 2019; 27:106. [PMID: 31771619 PMCID: PMC6880486 DOI: 10.1186/s13049-019-0682-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 11/11/2019] [Indexed: 11/16/2022] Open
Abstract
Background Considering the significant morbidity and mortality of out-of-hospital cardiac arrest, only little data on survival or quality of life after successful resuscitation is available in Europe. Additionally, economic aspects of such events are poorly studied. The purpose of this study is to provide data for survival, quality of life and costs directly related to the cardiac arrest for a region of Switzerland served by one emergency medical service (EMS). Methods Eighty eight patients older than 18 years of age that were resuscitated by the EMS Winterthur in the year 2013 were included and retrospective analysis of EMS-protocols was performed. For patients alive at follow-up, 2 years after the event, a structured interview with quality of life questionnaires was conducted. This study was accepted by the local Ethics Committee. Results Thirty five percent (n = 31) of resuscitated patients were admitted alive to the hospital following out-of-hospital cardiac arrest. This incidence was as high as 60%, if the patients had a shockable rhythm as first rhythm. Survival to follow-up was 16% (n = 14). These patients had an excellent quality of life overall, with little to no limitations in daily life. There was no significant difference in survival for patients in outlying regions with comparatively longer timespans until arrival of EMS. Median EMS-costs for deceased patients were CHF 1731 (inter-quartile range 346), for survivors CHF 2′169 (inter-quartile range CHF 444) and median hospital-costs were CHF 27′707 (inter-quartile range CHF 62′783). Conclusion Quality of care for patients with out-of-hospital cardiac arrest in the region of Winterthur is high, including patients in outlying regions. The associated costs are similar to other European countries. Trial registration This trial was registered with www.clinicaltrials.gov under NCT02625883.
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Affiliation(s)
- Raphael Ruch
- Institute of Anesthesiology - Emergency Medical Service, Perioperative Medicine, Pain Therapy, Kantonsspital Winterthur, Brauerstrasse 15, CH-8401, Winterthur, Switzerland
| | - Laura Stoessel
- Institute of Anesthesiology - Emergency Medical Service, Perioperative Medicine, Pain Therapy, Kantonsspital Winterthur, Brauerstrasse 15, CH-8401, Winterthur, Switzerland
| | - Philipp Stein
- Institute of Anesthesiology - Emergency Medical Service, Perioperative Medicine, Pain Therapy, Kantonsspital Winterthur, Brauerstrasse 15, CH-8401, Winterthur, Switzerland
| | - Michael Thomas Ganter
- Institute of Anesthesiology - Emergency Medical Service, Perioperative Medicine, Pain Therapy, Kantonsspital Winterthur, Brauerstrasse 15, CH-8401, Winterthur, Switzerland.
| | - Daniel Anthony Button
- Institute of Anesthesiology - Emergency Medical Service, Perioperative Medicine, Pain Therapy, Kantonsspital Winterthur, Brauerstrasse 15, CH-8401, Winterthur, Switzerland
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Humaloja J, Litonius E, Efendijev I, Folger D, Raj R, Pekkarinen PT, Skrifvars MB. Early hyperoxemia is not associated with cardiac arrest outcome. Resuscitation 2019; 140:185-193. [PMID: 31039393 DOI: 10.1016/j.resuscitation.2019.04.035] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/14/2019] [Accepted: 04/22/2019] [Indexed: 01/20/2023]
Abstract
AIM Studies suggest that hyperoxemia increases short-term mortality after cardiopulmonary resuscitation (CPR), but the effect of hyperoxemia on long-term outcomes is unclear. We determined the prevalence of early hyperoxemia after CPR and its association with long-term neurological outcome and mortality. METHODS We analysed data from adult cardiac arrest patients treated after CPR in tertiary ICUs during 2005-2013. We retrieved data from the resuscitation and the first arterial blood sample collected after return of spontaneous circulation (ROSC) (severe hyperoxemia defined as PaO2 > 40 kPa and moderate as PaO2 16-40 kPa). We inspected two outcomes, neurological performance at one year after resuscitation according to the Cerebral Performance Category and one-year mortality. We used logistic regression to test associations between hyperoxemia and the outcome and interaction analyses to test the effect of hyperoxemia exposure on the outcomes in smaller subgroups. RESULTS Of 1110 patients 11% had severe hyperoxemia, prevalence was 10% for out-of-hospital arrests, 13% for in-hospital arrests and 9% for in-ICU arrests. In total 585(53%) patients had an unfavourable neurological outcome. Compared to normoxemia, severe (Odds ratio [OR] 0.81, 95% confidence interval [CI] 0.50-1.30) and moderate hyperoxemia (OR 0.94 95%CI 0.69-1.27) did not associate with neurological outcome. Additionally, hyperoxemia had no association with mortality. In subgroup analyses there were no significant associations between severe hyperoxemia and outcomes regardless of cardiac arrest location, initial rhythm or time-to-ROSC. CONCLUSION We found no association between early post-arrest hyperoxemia and unfavourable outcome. Subgroup analysis found no differential effect depending on arrest location, initial rhythm or time-to-ROSC.
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Affiliation(s)
- Jaana Humaloja
- Department of Emergency Care and Services, University of Helsinki and Helsinki University Hospital, Finland.
| | - Erik Litonius
- Division of Intensive Care Medicine, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Finland
| | - Ilmar Efendijev
- Division of Intensive Care Medicine, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Finland
| | - Daniel Folger
- Division of Intensive Care Medicine, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Finland
| | - Rahul Raj
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Finland
| | - Pirkka T Pekkarinen
- Division of Intensive Care Medicine, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Finland
| | - Markus B Skrifvars
- Department of Emergency Care and Services, University of Helsinki and Helsinki University Hospital, Finland; Division of Intensive Care Medicine, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Finland
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Pekkarinen PT, Bäcklund M, Efendijev I, Raj R, Folger D, Litonius E, Laitio R, Bendel S, Hoppu S, Ala-Kokko T, Reinikainen M, Skrifvars MB. Association of extracerebral organ failure with 1-year survival and healthcare-associated costs after cardiac arrest: an observational database study. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:67. [PMID: 30819234 PMCID: PMC6396453 DOI: 10.1186/s13054-019-2359-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 02/14/2019] [Indexed: 01/31/2023]
Abstract
Background Organ dysfunction is common after cardiac arrest and associated with worse short-term outcome, but its impact on long-term outcome and treatment costs is unknown. Methods We used nationwide registry data from the intensive care units (ICU) of the five Finnish university hospitals to evaluate the association of 24-h extracerebral Sequential Organ Failure Assessment (24h-EC-SOFA) score with 1-year survival and healthcare-associated costs after cardiac arrest. We included adult cardiac arrest patients treated in the participating ICUs between January 1, 2003, and December 31, 2013. We acquired the confirmed date of death from the Finnish Population Register Centre database and gross 1-year healthcare-associated costs from the hospital billing records and the database of the Finnish Social Insurance Institution. Results A total of 5814 patients were included in the study, and 2401 were alive 1 year after cardiac arrest. Median (interquartile range (IQR)) 24h-EC-SOFA score was 6 (5–8) in 1-year survivors and 7 (5–10) in non-survivors. In multivariate regression analysis, adjusting for age and prior independency in self-care, the 24h-EC-SOFA score had an odds ratio (OR) of 1.16 (95% confidence interval (CI) 1.14–1.18) per point for 1-year mortality. Median (IQR) healthcare-associated costs in the year after cardiac arrest were €47,000 (€28,000–75,000) in 1-year survivors and €12,000 (€6600–25,000) in non-survivors. In a multivariate linear regression model adjusting for age and prior independency in self-care, an increase of one point in the 24h-EC-SOFA score was associated with an increase of €170 (95% CI €150–190) in the cost per day alive in the year after cardiac arrest. In the same model, an increase of one point in the 24h-EC-SOFA score was associated with an increase of €4400 (95% CI €3300–5500) in the total healthcare-associated costs in 1-year survivors. Conclusions Extracerebral organ dysfunction is associated with long-term outcome and gross healthcare-associated costs of ICU-treated cardiac arrest patients. It should be considered when assessing interventions to improve outcomes and optimize the use of resources in these patients. Electronic supplementary material The online version of this article (10.1186/s13054-019-2359-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Pirkka T Pekkarinen
- Division of Intensive Care Medicine, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, PB 340, 00029, Helsinki, HUS, Finland.
| | - Minna Bäcklund
- Division of Intensive Care Medicine, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, PB 340, 00029, Helsinki, HUS, Finland
| | - Ilmar Efendijev
- Division of Intensive Care Medicine, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, PB 340, 00029, Helsinki, HUS, Finland
| | - Rahul Raj
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Daniel Folger
- Division of Intensive Care Medicine, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, PB 340, 00029, Helsinki, HUS, Finland
| | - Erik Litonius
- Division of Intensive Care Medicine, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, PB 340, 00029, Helsinki, HUS, Finland
| | - Ruut Laitio
- Division of Perioperative Services, Intensive Care and Pain Medicine, Turku University Hospital, Turku, Finland
| | - Stepani Bendel
- Division of Intensive Care Medicine, Kuopio University Hospital, Kuopio, Finland
| | - Sanna Hoppu
- Department of Intensive Care, Tampere University Hospital, Tampere, Finland
| | - Tero Ala-Kokko
- Department of Anaesthesiology, University of Oulu, Oulu, Finland.,Division of Intensive Care Medicine, Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland
| | - Matti Reinikainen
- University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
| | - Markus B Skrifvars
- Department of Emergency Care and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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Stanger DE, Fordyce CB. The cost of care for cardiac arrest. Resuscitation 2018; 131:A7-A8. [PMID: 30099120 DOI: 10.1016/j.resuscitation.2018.08.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Accepted: 08/07/2018] [Indexed: 01/18/2023]
Affiliation(s)
- Dylan E Stanger
- Division of Cardiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Christopher B Fordyce
- Division of Cardiology, University of British Columbia, Vancouver, British Columbia, Canada.
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