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Kienzle MF, Morgan RW, Reeder RW, Ahmed T, Berg RA, Bishop R, Bochkoris M, Carcillo JA, Carpenter TC, Cooper KK, Diddle JW, Federman M, Fernandez R, Franzon D, Frazier AH, Friess SH, Frizzola M, Graham K, Hall M, Horvat C, Huard LL, Maa T, Manga A, McQuillen PS, Meert KL, Mourani PM, Nadkarni VM, Naim MY, Pollack MM, Sapru A, Schneiter C, Sharron MP, Tabbutt S, Viteri S, Wolfe HA, Sutton RM. Epinephrine Dosing Intervals Are Associated With Pediatric In-Hospital Cardiac Arrest Outcomes: A Multicenter Study. Crit Care Med 2024:00003246-990000000-00340. [PMID: 38833560 DOI: 10.1097/ccm.0000000000006334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
OBJECTIVES Data to support epinephrine dosing intervals during cardiopulmonary resuscitation (CPR) are conflicting. The objective of this study was to evaluate the association between epinephrine dosing intervals and outcomes. We hypothesized that dosing intervals less than 3 minutes would be associated with improved neurologic survival compared with greater than or equal to 3 minutes. DESIGN This study is a secondary analysis of The ICU-RESUScitation Project (NCT028374497), a multicenter trial of a quality improvement bundle of physiology-directed CPR training and post-cardiac arrest debriefing. SETTING Eighteen PICUs and pediatric cardiac ICUs in the United States. PATIENTS Subjects were 18 years young or younger and 37 weeks old or older corrected gestational age who had an index cardiac arrest. Patients who received less than two doses of epinephrine, received extracorporeal CPR, or had dosing intervals greater than 8 minutes were excluded. INTERVENTIONS The primary exposure was an epinephrine dosing interval of less than 3 vs. greater than or equal to 3 minutes. MEASUREMENTS AND MAIN RESULTS The primary outcome was survival to discharge with a favorable neurologic outcome defined as a Pediatric Cerebral Performance Category score of 1-2 or no change from baseline. Regression models evaluated the association between dosing intervals and: 1) survival outcomes and 2) CPR duration. Among 382 patients meeting inclusion and exclusion criteria, median age was 0.9 years (interquartile range 0.3-7.6 yr) and 45% were female. After adjustment for confounders, dosing intervals less than 3 minutes were not associated with survival with favorable neurologic outcome (adjusted relative risk [aRR], 1.10; 95% CI, 0.84-1.46; p = 0.48) but were associated with improved sustained return of spontaneous circulation (ROSC) (aRR, 1.21; 95% CI, 1.07-1.37; p < 0.01) and shorter CPR duration (adjusted effect estimate, -9.5 min; 95% CI, -14.4 to -4.84 min; p < 0.01). CONCLUSIONS In patients receiving at least two doses of epinephrine, dosing intervals less than 3 minutes were not associated with neurologic outcome but were associated with sustained ROSC and shorter CPR duration.
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Affiliation(s)
- Martha F Kienzle
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA
| | - Ryan W Morgan
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA
| | - Ron W Reeder
- Department of Pediatrics, University of Utah, Salt Lake City, UT
| | - Tageldin Ahmed
- Department of Pediatrics, Children's Hospital of Michigan, Central Michigan University, Detroit, MI
| | - Robert A Berg
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA
| | - Robert Bishop
- Department of Pediatrics, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO
| | - Matthew Bochkoris
- Department of Critical Care Medicine, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA
| | - Joseph A Carcillo
- Department of Critical Care Medicine, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA
| | - Todd C Carpenter
- Department of Pediatrics, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO
| | - Kellimarie K Cooper
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA
| | - J Wesley Diddle
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA
| | - Myke Federman
- Department of Pediatrics, Mattel Children's Hospital, University of California Los Angeles, Los Angeles, CA
| | - Richard Fernandez
- Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University, Columbus, OH
| | - Deborah Franzon
- Department of Pediatrics, Benioff Children's Hospital, University of California, San Francisco, San Francisco, CA
| | - Aisha H Frazier
- Department of Pediatrics, Nemours Children's Health, Delaware and Thomas Jefferson University, Wilmington, DE
| | - Stuart H Friess
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO
| | - Meg Frizzola
- Department of Pediatrics, Nemours Children's Health, Delaware and Thomas Jefferson University, Wilmington, DE
| | - Kathryn Graham
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA
| | - Mark Hall
- Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University, Columbus, OH
| | - Christopher Horvat
- Department of Critical Care Medicine, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA
| | - Leanna L Huard
- Department of Pediatrics, Mattel Children's Hospital, University of California Los Angeles, Los Angeles, CA
| | - Tensing Maa
- Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University, Columbus, OH
| | - Arushi Manga
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO
| | - Patrick S McQuillen
- Department of Pediatrics, Benioff Children's Hospital, University of California, San Francisco, San Francisco, CA
| | - Kathleen L Meert
- Department of Pediatrics, Children's Hospital of Michigan, Central Michigan University, Detroit, MI
| | - Peter M Mourani
- Department of Pediatrics, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO
| | - Vinay M Nadkarni
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA
| | - Maryam Y Naim
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA
| | - Murray M Pollack
- Department of Pediatrics, Children's National Hospital, George Washington University School of Medicine, Washington, DC
| | - Anil Sapru
- Department of Pediatrics, Mattel Children's Hospital, University of California Los Angeles, Los Angeles, CA
| | - Carleen Schneiter
- Department of Pediatrics, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO
| | - Matthew P Sharron
- Department of Pediatrics, Children's National Hospital, George Washington University School of Medicine, Washington, DC
| | - Sarah Tabbutt
- Department of Pediatrics, Benioff Children's Hospital, University of California, San Francisco, San Francisco, CA
| | - Shirley Viteri
- Department of Pediatrics, Nemours Children's Health, Delaware and Thomas Jefferson University, Wilmington, DE
| | - Heather A Wolfe
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA
| | - Robert M Sutton
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA
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Choi DH, Hong KJ, Kim KH, Shin SD, Song KJ, Kim Y, Joo YH, Park JH, Ro YS, Kang HJ. Effect of first epinephrine administration time on cerebral perfusion pressure and cortical cerebral blood flow in a porcine cardiac arrest model. Resuscitation 2024; 195:109969. [PMID: 37716402 DOI: 10.1016/j.resuscitation.2023.109969] [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: 07/02/2023] [Revised: 08/27/2023] [Accepted: 09/10/2023] [Indexed: 09/18/2023]
Abstract
OBJECTIVE The optimal time for epinephrine administration and its effects on cerebral blood flow (CBF) and microcirculation remain controversial. This study aimed to assess the effect of the first administration of epinephrine on cerebral perfusion pressure (CePP) and cortical CBF in porcine cardiac arrest model. METHODS After 4 min of untreated ventricular fibrillation, eight of 24 swine were randomly assigned to the early, intermediate, and late groups. In each group, epinephrine was administered intravenously at 5, 10, and 15 min after cardiac arrest induction. CePP was calculated as the difference between the mean arterial pressure and intracranial pressure. Cortical CBF was measured using a laser Doppler flow probe. The outcomes were CePP and cortical CBF measured continuously during cardiopulmonary resuscitation (CPR). Mean CePP and cortical CBF were compared using analysis of variance and a linear mixed model. RESULTS The mean CePP was significantly different between the groups at 6-11 min after cardiac arrest induction. The mean CePP in the early group was significantly higher than that in the intermediate group at 8-10 min and that in the late group at 6-9 min and 10-11 min. The mean cortical CBF was significantly different between the groups at 9-11 min. The mean cortical CBF was significantly higher in the early group than in the intermediate and late group at 9-10 min. CONCLUSION Early administration of epinephrine was associated with improved CePP and cortical CBF compared to intermediate or late administration during the early period of CPR.
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Affiliation(s)
- Dong Hyun Choi
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea; Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, South Korea.
| | - Ki Jeong Hong
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea; Department of Emergency Medicine, Seoul National University Hospital, Seoul, South Korea; Disaster Medicine Research Center, Seoul National University Medical Research Center, Seoul, South Korea; Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, South Korea.
| | - Ki Hong Kim
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea; Department of Emergency Medicine, Seoul National University Hospital, Seoul, South Korea; Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, South Korea.
| | - Sang Do Shin
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea; Department of Emergency Medicine, Seoul National University Hospital, Seoul, South Korea; Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, South Korea.
| | - Kyoung Jun Song
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea; Department of Emergency Medicine, Seoul National University Boramae Medical Center, Seoul, South Korea; Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, South Korea.
| | - Yoonjic Kim
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea; Department of Emergency Medicine, Seoul National University Hospital, Seoul, South Korea.
| | - Yoon Ha Joo
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea.
| | - Jeong Ho Park
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea; Department of Emergency Medicine, Seoul National University Hospital, Seoul, South Korea; Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, South Korea.
| | - Young Sun Ro
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea; Department of Emergency Medicine, Seoul National University Hospital, Seoul, South Korea; Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, South Korea.
| | - Hyun Jeong Kang
- Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea.
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Battaglini D, Bogossian EG, Anania P, Premraj L, Cho SM, Taccone FS, Sekhon M, Robba C. Monitoring of Brain Tissue Oxygen Tension in Cardiac Arrest: a Translational Systematic Review from Experimental to Clinical Evidence. Neurocrit Care 2024; 40:349-363. [PMID: 37081276 DOI: 10.1007/s12028-023-01721-5] [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: 12/05/2022] [Accepted: 03/24/2023] [Indexed: 04/22/2023]
Abstract
BACKGROUND Cardiac arrest (CA) is a sudden event that is often characterized by hypoxic-ischemic brain injury (HIBI), leading to significant mortality and long-term disability. Brain tissue oxygenation (PbtO2) is an invasive tool for monitoring brain oxygen tension, but it is not routinely used in patients with CA because of the invasiveness and the absence of high-quality data on its effect on outcome. We conducted a systematic review of experimental and clinical evidence to understand the role of PbtO2 in monitoring brain oxygenation in HIBI after CA and the effect of targeted PbtO2 therapy on outcomes. METHODS The search was conducted using four search engines (PubMed, Scopus, Embase, and Cochrane), using the Boolean operator to combine mesh terms such as PbtO2, CA, and HIBI. RESULTS Among 1,077 records, 22 studies were included (16 experimental studies and six clinical studies). In experimental studies, PbtO2 was mainly adopted to assess the impact of gas exchanges, drugs, or systemic maneuvers on brain oxygenation. In human studies, PbtO2 was rarely used to monitor the brain oxygen tension in patients with CA and HIBI. PbtO2 values had no clear association with patients' outcomes, but in the experimental studies, brain tissue hypoxia was associated with increased inflammation and neuronal damage. CONCLUSIONS Further studies are needed to validate the effect and the threshold of PbtO2 associated with outcome in patients with CA, as well as to understand the physiological mechanisms influencing PbtO2 induced by gas exchanges, drug administration, and changes in body positioning after CA.
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Affiliation(s)
- Denise Battaglini
- Anesthesiology and Critical Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neurosciences, Genoa, Italy
- Department of Medicine, University of Barcelona, Barcelona, Spain
| | - Elisa Gouvea Bogossian
- Department of Intensive Care, Hospital Erasme, Université Libre de Bruxelles, Brussels, Belgium
| | - Pasquale Anania
- Department of Neurosurgery, San Martino Policlinico Hospital, IRCCS for Oncology and Neuroscience, Genoa, Italy.
| | - Lavienraj Premraj
- Griffith University School of Medicine, Gold Coast, QLD, Australia
- Critical Care Research Group, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Sung-Min Cho
- Departments of Neurology, Surgery, and Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Fabio Silvio Taccone
- Department of Intensive Care, Hospital Erasme, Université Libre de Bruxelles, Brussels, Belgium
| | - Mypinder Sekhon
- Division of Critical Care Medicine, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Chiara Robba
- Anesthesiology and Critical Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neurosciences, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy
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Roh Y, Ahn GJ, Lee JH, Jung WJ, Kim S, Im HY, Lee Y, Im D, Lim J, Hwang SO, Cha K. Hemodynamic Effect of Repeated Epinephrine Doses Decreases With Cardiopulmonary Resuscitation Cycle Progression. J Am Heart Assoc 2024; 13:e030776. [PMID: 38156546 PMCID: PMC10863801 DOI: 10.1161/jaha.123.030776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 11/21/2023] [Indexed: 12/30/2023]
Abstract
BACKGROUND Epinephrine is administered to increase coronary perfusion pressure during advanced life support and promote short-term survival. Recent cardiopulmonary resuscitation (CPR) guidelines recommend an epinephrine dosing interval of 3 to 5 minutes during resuscitation; however, scientific evidence supporting this recommendation is lacking. Therefore, we aimed to investigate the hemodynamic effects of repeated epinephrine doses during CPR by monitoring augmented blood pressure after its administration in a swine model of cardiac arrest. METHODS AND RESULTS A secondary analysis of data from a published study was performed using a swine cardiac arrest model. The epinephrine dose was fixed at 1 mg, and the first dose of epinephrine was administered after no-flow and low-flow times of 2 minutes and 8 minutes, respectively, and subsequently administered every 4 minutes. Four cycles of dosing intervals were defined because a previous study was terminated 26 minutes after the induction of ventricular fibrillation. Augmented blood pressures and corresponding timelines were determined. Augmented blood pressure trends following cycles and the epinephrine effect duration were also monitored. Among the 140 CPR cycles, the augmented blood pressure after epinephrine administration was the highest during the first cycle of CPR and decreased gradually with further cycle repetitions. The epinephrine effect duration did not differ between repeated cycles. The maximum blood pressure was achieved 78 to 97 seconds after epinephrine administration. CONCLUSIONS Hemodynamic augmentation with repeated epinephrine administration during CPR decreased with cycle progression. Further studies are required to develop an epinephrine administration strategy to maintain its hemodynamic effects during prolonged resuscitation.
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Affiliation(s)
- Young‐Il Roh
- Department of Emergency MedicineYonsei University Wonju College of MedicineWonjuRepublic of Korea
- Research Institute of Resuscitation ScienceYonsei University Wonju College of MedicineWonjuRepublic of Korea
| | - Gyo Jin Ahn
- Department of Emergency MedicineYonsei University Wonju College of MedicineWonjuRepublic of Korea
- Research Institute of Resuscitation ScienceYonsei University Wonju College of MedicineWonjuRepublic of Korea
| | - Jung Hun Lee
- Department of Emergency MedicineYonsei University Wonju College of MedicineWonjuRepublic of Korea
| | - Woo Jin Jung
- Department of Emergency MedicineYonsei University Wonju College of MedicineWonjuRepublic of Korea
- Research Institute of Resuscitation ScienceYonsei University Wonju College of MedicineWonjuRepublic of Korea
| | - Soyeong Kim
- Korea Health Industry Development InstituteCheongjuRepublic of Korea
| | - Hyeon Young Im
- Research Institute of Resuscitation ScienceYonsei University Wonju College of MedicineWonjuRepublic of Korea
| | - Yujin Lee
- Research Institute of Resuscitation ScienceYonsei University Wonju College of MedicineWonjuRepublic of Korea
| | - Dahye Im
- Research Institute of Resuscitation ScienceYonsei University Wonju College of MedicineWonjuRepublic of Korea
| | - Jihye Lim
- National Health Big Data Clinical Research InstituteYonsei University Wonju College of MedicineWonjuRepublic of Korea
| | - Sung Oh Hwang
- Department of Emergency MedicineYonsei University Wonju College of MedicineWonjuRepublic of Korea
- Research Institute of Resuscitation ScienceYonsei University Wonju College of MedicineWonjuRepublic of Korea
| | - Kyoung‐Chul Cha
- Department of Emergency MedicineYonsei University Wonju College of MedicineWonjuRepublic of Korea
- Research Institute of Resuscitation ScienceYonsei University Wonju College of MedicineWonjuRepublic of Korea
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5
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Gupte D, Assaf M, Miller MR, McKenzie K, Loosley J, Tijssen JA. Evaluation of hospital management of paediatric out-of-hospital cardiac arrest. Resusc Plus 2023; 15:100433. [PMID: 37555196 PMCID: PMC10405089 DOI: 10.1016/j.resplu.2023.100433] [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: 04/04/2023] [Revised: 06/22/2023] [Accepted: 07/11/2023] [Indexed: 08/10/2023] Open
Abstract
INTRODUCTION Pediatric out of hospital cardiac arrest (POHCA) is rare, with high mortality and neurological morbidity. Adherence to Pediatric Advanced Life Support guidelines standardizes in-hospital care and improves outcomes. We hypothesized that in-hospital care of POHCA patients was variable and deviations from guidelines were associated with higher mortality. METHODS POHCA patients in the London-Middlesex region between January 2012 and June 2020 were included. The care of children with ongoing arrest (intra-arrest) and post-arrest outcomes were reviewed using the Children's Hospital, London Health Sciences Centre (LHSC) patient database and the Adverse Event Management System. RESULTS 50 POHCA patients arrived to hospital, with 15 (30%) patients admitted and 2 (4.0%) surviving to discharge, both with poor neurological outcomes and no improvement at 90 days. Deviations occurred at every event with intra-arrest care deviations occurring mostly in medication delivery and defibrillation (98%). Post-arrest deviations occurred mostly in temperature monitoring (60%). Data missingness was 15.9% in the intra-arrest and 1.7% in the post-arrest group. DISCUSSION Deviations commonly occurred in both in-hospital arrest and post-arrest care. The study was under-powered to identify associations between DEVs and outcomes. Future work includes addressing specific deviations in intra-arrest and post-arrest care of POHCA patients and standardizing electronic documentation.
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Affiliation(s)
- Dhruv Gupte
- Schulich School of Medicine and Dentistry, Western University, 1151 Richmond St, London, ON N6A 5C1, Canada
| | - Maysaa Assaf
- Department of Paediatrics, London Health Sciences Centre, 800 Commissioners Rd. E., London, ON N6A 5W9, Canada
| | - Michael R. Miller
- Department of Paediatrics, London Health Sciences Centre, 800 Commissioners Rd. E., London, ON N6A 5W9, Canada
- Children’s Health Research Institute, 800 Commissioners Rd. E., London, ON N6C 2V5, Canada
| | - Kate McKenzie
- Schulich School of Medicine and Dentistry, Western University, 1151 Richmond St, London, ON N6A 5C1, Canada
| | - Jay Loosley
- Middlesex-London Paramedic Service, 1035 Adelaide St. S., London, ON N6E 1R4, Canada
| | - Janice A. Tijssen
- Schulich School of Medicine and Dentistry, Western University, 1151 Richmond St, London, ON N6A 5C1, Canada
- Department of Paediatrics, London Health Sciences Centre, 800 Commissioners Rd. E., London, ON N6A 5W9, Canada
- Children’s Health Research Institute, 800 Commissioners Rd. E., London, ON N6C 2V5, Canada
- Lawson Health Research Institute, 750 Base Line Rd. E., London, ON N6C 2R5, Canada
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Abram J, Martini J, Spraider P, Putzer G, Ranalter M, Wagner J, Glodny B, Hell T, Barnes T, Enk D. Individualised flow-controlled versus pressure-controlled ventilation in a porcine oleic acid-induced acute respiratory distress syndrome model. Eur J Anaesthesiol 2023; 40:511-520. [PMID: 36749046 PMCID: PMC10256303 DOI: 10.1097/eja.0000000000001807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND A continuous gas flow provided by flow-controlled ventilation (FCV) facilitates accurate dynamic compliance measurement and allows the clinician to individually optimise positive end-expiratory and peak pressure settings accordingly. OBJECTIVE The aim of this study was to compare the efficiency of gas exchange and impact on haemodynamics between individualised FCV and pressure-controlled ventilation (PCV) in a porcine model of oleic acid-induced acute respiratory distress syndrome (ARDS). DESIGN Randomised controlled interventional trial conducted on 16 pigs. SETTING Animal operating facility at the Medical University Innsbruck. INTERVENTIONS ARDS was induced in lung healthy pigs by intravenous infusion of oleic acid until moderate-to-severe ARDS at a stable Horowitz quotient (PaO 2 FiO 2-1 ) of 80 to 120 over a period of 30 min was obtained. Ventilation was then either performed with individualised FCV ( n = 8) established by compliance-guided pressure titration or PCV ( n = 8) with compliance-guided titration of the positive end-expiratory pressure and peak pressure set to achieve a tidal volume of 6 ml kg -1 over a period of 2 h. MAIN OUTCOME MEASURES Gas exchange parameters were assessed by the PaO 2 FiO 2-1 quotient and CO 2 removal by the PaCO 2 value in relation to required respiratory minute volume. Required catecholamine support for haemodynamic stabilisation was measured. RESULTS The FCV group showed significantly improved oxygenation [149.2 vs. 110.4, median difference (MD) 38.7 (8.0 to 69.5) PaO 2 FiO 2-1 ; P = 0.027] and CO 2 removal [PaCO 2 7.25 vs. 9.05, MD -1.8 (-2.87 to -0.72) kPa; P = 0.006] at a significantly lower respiratory minute volume [8.4 vs. 11.9, MD -3.6 (-5.6 to -1.5) l min -1 ; P = 0.005] compared with PCV. In addition, in FCV-pigs, haemodynamic stabilisation occurred with a significant reduction of required catecholamine support [norepinephrine 0.26 vs. 0.86, MD -0.61 (-1.12 to -0.09) μg kg -1 min -1 ; P = 0.037] during 2 ventilation hours. CONCLUSION In this oleic acid-induced porcine ARDS model, individualised FCV significantly improved gas exchange and haemodynamic stability compared with PCV. TRIAL REGISTRATION Protocol no.: BMBWF-66.011/0105-V/3b/2019).
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Affiliation(s)
- Julia Abram
- From the Department of Anaesthesia and Intensive Care Medicine (JA, JM, PS, GP, MR, JW), Department of Radiology, Medical University of Innsbruck (BG), Department of Mathematics, Faculty of Mathematics, Computer Science and Physics, University of Innsbruck, Innsbruck, Austria (TH), University of Greenwich, London, UK (TB), Faculty of Medicine, University of Münster, Münster, Germany (DE)
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7
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Altuntaş M, Altuntaş DB, Aslan S, Yılmaz E, Nalbant E. Determination of Exogenous Adrenaline Levels in Patients Undergoing Cardiopulmonary Resuscitation. ACS OMEGA 2023; 8:19425-19432. [PMID: 37305245 PMCID: PMC10249028 DOI: 10.1021/acsomega.3c00555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/11/2023] [Indexed: 06/13/2023]
Abstract
Core-shell quantum dot ZnS/CdSe screen-printed electrodes were used to electrochemically measure human blood plasma levels of exogenous adrenaline administered to cardiac arrest patients. The electrochemical behavior of adrenaline on the modified electrode surface was investigated using differential pulse voltammetry (DPV), cyclic voltammetry, and electrochemical impedance spectroscopy (EIS). Under optimal conditions, the linear working ranges of the modified electrode were 0.001-3 μM (DPV) and 0.001-300 μM (EIS). The best limit of detection for this concentration range was 2.79 × 10-8 μM (DPV). The modified electrodes showed good reproducibility, stability, and sensitivity and successfully detected adrenaline levels.
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Affiliation(s)
- Mehmet Altuntaş
- Faculty
of Medicine, Department of Emergency Medicine, Recep Tayyip Erdogan University, Rize 53100, Turkey
| | - Derya Bal Altuntaş
- Faculty
of Engineering and Architecture, Department of Bioengineering, Recep Tayyip Erdogan University, Rize 53100, Turkey
| | - Sema Aslan
- Department
of Chemistry, Faculty of Science, Muğla
Sıtkı Koçman University, Muğla 48170, Turkey
| | - Ersin Yılmaz
- Department
of Statistics, Muğla Sıtkı
Koçman University, Muğla 48170, Turkey
| | - Ercan Nalbant
- Faculty
of Medicine, Department of Emergency Medicine, Recep Tayyip Erdogan University, Rize 53100, Turkey
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8
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Morgan RW, Berg RA, Reeder RW, Carpenter TC, Franzon D, Frazier AH, Graham K, Meert KL, Nadkarni VM, Naim MY, Tilford B, Wolfe HA, Yates AR, Sutton RM. The physiologic response to epinephrine and pediatric cardiopulmonary resuscitation outcomes. Crit Care 2023; 27:105. [PMID: 36915182 PMCID: PMC10012560 DOI: 10.1186/s13054-023-04399-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 03/08/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND Epinephrine is provided during cardiopulmonary resuscitation (CPR) to increase systemic vascular resistance and generate higher diastolic blood pressure (DBP) to improve coronary perfusion and attain return of spontaneous circulation (ROSC). The DBP response to epinephrine during pediatric CPR and its association with outcomes have not been well described. Thus, the objective of this study was to measure the association between change in DBP after epinephrine administration during CPR and ROSC. METHODS This was a prospective multicenter study of children receiving ≥ 1 min of CPR with ≥ 1 dose of epinephrine and evaluable invasive arterial BP data in the 18 ICUs of the ICU-RESUS trial (NCT02837497). Blood pressure waveforms underwent compression-by-compression quantitative analysis. The mean DBP before first epinephrine dose was compared to mean DBP two minutes post-epinephrine. Patients with ≥ 5 mmHg increase in DBP were characterized as "responders." RESULTS Among 147 patients meeting inclusion criteria, 66 (45%) were characterized as responders and 81 (55%) were non-responders. The mean increase in DBP with epinephrine was 4.4 [- 1.9, 11.5] mmHg (responders: 13.6 [7.5, 29.3] mmHg versus non-responders: - 1.5 [- 5.0, 1.5] mmHg; p < 0.001). After controlling for a priori selected covariates, epinephrine response was associated with ROSC (aRR 1.60 [1.21, 2.12]; p = 0.001). Sensitivity analyses identified similar associations between DBP response thresholds of ≥ 10, 15, and 20 mmHg and ROSC; DBP responses of ≥ 10 and ≥ 15 mmHg were associated with higher aRR of survival to hospital discharge and survival with favorable neurologic outcome (Pediatric Cerebral Performance Category score of 1-3 or no worsening from baseline). CONCLUSIONS The change in DBP following epinephrine administration during pediatric in-hospital CPR was associated with return of spontaneous circulation.
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Affiliation(s)
- Ryan W Morgan
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, 3401 Civic Center Boulevard, Wood Building - 6104, Philadelphia, PA, 19104, USA.
| | - Robert A Berg
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, 3401 Civic Center Boulevard, Wood Building - 6104, Philadelphia, PA, 19104, USA
| | - Ron W Reeder
- Department of Pediatrics, University of Utah, Salt Lake City, UT, USA
| | - Todd C Carpenter
- Department of Pediatrics, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO, USA
| | - Deborah Franzon
- Department of Pediatrics, Benioff Children's Hospital, University of California, San Francisco, San Francisco, CA, USA
| | - Aisha H Frazier
- Nemours Cardiac Center, Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE, USA.,Department of Pediatrics, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Kathryn Graham
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, 3401 Civic Center Boulevard, Wood Building - 6104, Philadelphia, PA, 19104, USA
| | - Kathleen L Meert
- Department of Pediatrics, Children's Hospital of Michigan, Central Michigan University, Detroit, MI, USA
| | - Vinay M Nadkarni
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, 3401 Civic Center Boulevard, Wood Building - 6104, Philadelphia, PA, 19104, USA
| | - Maryam Y Naim
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, 3401 Civic Center Boulevard, Wood Building - 6104, Philadelphia, PA, 19104, USA
| | - Bradley Tilford
- Department of Pediatrics, Children's Hospital of Michigan, Central Michigan University, Detroit, MI, USA
| | - Heather A Wolfe
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, 3401 Civic Center Boulevard, Wood Building - 6104, Philadelphia, PA, 19104, USA
| | - Andrew R Yates
- Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University, Columbus, OH, USA
| | - Robert M Sutton
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, 3401 Civic Center Boulevard, Wood Building - 6104, Philadelphia, PA, 19104, USA
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9
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Wongtanasarasin W, Srisurapanont K, Nishijima DK. How Epinephrine Administration Interval Impacts the Outcomes of Resuscitation during Adult Cardiac Arrest: A Systematic Review and Meta-Analysis. J Clin Med 2023; 12:jcm12020481. [PMID: 36675411 PMCID: PMC9860904 DOI: 10.3390/jcm12020481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/28/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023] Open
Abstract
Current guidelines for treating cardiac arrest recommend administering 1 mg of epinephrine every 3−5 min. However, this interval is based solely on expert opinion. We aimed to investigate the impact of the epinephrine administration interval (EAI) on resuscitation outcomes in adults with cardiac arrest. We systematically reviewed the PubMed, EMBASE, and Scopus databases. We included studies comparing different EAIs in adult cardiac arrest patients with reported neurological outcomes. Pooled estimates were calculated using the IVhet meta-analysis, and the heterogeneities were assessed using Q and I2 statistics. We evaluated the study risk of bias and overall quality using validated bias assessment tools. Three studies were included. All were classified as “good quality” studies. Only two reported the primary outcome. Compared with a recommended EAI of 3−5 min, a favorable neurological outcome was not significantly different in patients with the other frequencies: for <3 min, odds ratio (OR) 1.93 (95% CI: 0.82−4.54); for >5 min, OR 1.01 (95% CI: 0.55−1.87). For survival to hospital discharge, administering epinephrine for less than 3 min was not associated with a good outcome (OR 1.66, 95% CI: 0.89−3.10). Moreover, EAI of >5 min did not pose a benefit (OR 0.87, 95% CI: 0.68−1.11). Our review showed that EAI during CPR was not associated with better hospital outcomes. Further clinical trials are necessary to determine the optimal dosing interval for epinephrine in adults with cardiac arrest.
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Affiliation(s)
- Wachira Wongtanasarasin
- Department of Emergency Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
- Department of Emergency Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA
- Correspondence: ; Tel.: +1-279-2225217
| | - Karan Srisurapanont
- Department of Emergency Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Daniel K. Nishijima
- Department of Emergency Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA
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10
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Yu S, Wu C, Zhu Y, Diao M, Hu W. Rat model of asphyxia-induced cardiac arrest and resuscitation. Front Neurosci 2023; 16:1087725. [PMID: 36685224 PMCID: PMC9846144 DOI: 10.3389/fnins.2022.1087725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 12/07/2022] [Indexed: 01/05/2023] Open
Abstract
Neurologic injury after cardiopulmonary resuscitation is the main cause of the low survival rate and poor quality of life among patients who have experienced cardiac arrest. In the United States, as the American Heart Association reported, emergency medical services respond to more than 347,000 adults and more than 7,000 children with out-of-hospital cardiac arrest each year. In-hospital cardiac arrest is estimated to occur in 9.7 per 1,000 adult cardiac arrests and 2.7 pediatric events per 1,000 hospitalizations. Yet the pathophysiological mechanisms of this injury remain unclear. Experimental animal models are valuable for exploring the etiologies and mechanisms of diseases and their interventions. In this review, we summarize how to establish a standardized rat model of asphyxia-induced cardiac arrest. There are four key focal areas: (1) selection of animal species; (2) factors to consider during modeling; (3) intervention management after return of spontaneous circulation; and (4) evaluation of neurologic function. The aim was to simplify a complex animal model, toward clarifying cardiac arrest pathophysiological processes. It also aimed to help standardize model establishment, toward facilitating experiment homogenization, convenient interexperimental comparisons, and translation of experimental results to clinical application.
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11
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Nelskylä A, Humaloja J, Litonius E, Pekkarinen P, Babini G, Mäki-Aho TP, Heinonen JA, Skrifvars MB. The use of 100% compared to 50% oxygen during ineffective experimental cardiopulmonary resuscitation improves brain oxygenation. Resuscitation 2023; 182:109656. [PMID: 36470536 DOI: 10.1016/j.resuscitation.2022.11.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 11/17/2022] [Accepted: 11/26/2022] [Indexed: 12/07/2022]
Abstract
INTRODUCTION Perfusion pressure and chest compression quality are generally considered key determinants of brain oxygenation during cardiopulmonary resuscitation (CPR) and the impact of oxygen administration is less clear. We compared ventilation with 100% and 50% oxygen during ineffective manual chest compressions and hypothesized that 100% oxygen would improve brain oxygenation. METHODS Ventricular fibrillation (VF) was induced electrically in anaesthetized pigs and left untreated for 5 minutes, followed by randomization to ineffective manual CPR with ventilation of 50% or 100% oxygen. The first defibrillation was performed 10 minutes after induction of VF, and CPR continued with mechanical chest compressions (LUCAS2™) and defibrillation every 2 minutes until 36 minutes or return of spontaneous circulation (ROSC). Brain oxygenation was measured with near-infrared spectroscopy (rSO2) and invasive brain tissue oxygen (PbtO2) with a probe (NEUROVENT-PTO, RAUMEDIC) inserted into frontal brain tissue. Cerebral oxygenation was compared between groups with Mann-Whitney U tests and linear mixed models. RESULTS Twenty-eight pigs were included in the study: 14 subjects in each group. During ineffective chest compressions relative PbtO2 was higher in the group ventilated with 100% compared to 50% oxygen (5.2 mmHg [1.4-20.5] vs 2.2 [0.8-6.8], p = 0.001), but there was no difference in rSO2 (22% [16-28] vs 18 [15-25], p = 0.090). The use of 50% or 100% oxygen showed no difference in relative PbtO2 (p = 1.00) and rSO2 (p = 0.206) during mechanical CPR. CONCLUSIONS The use of 100% compared to 50% oxygen during ineffective manual CPR improved brain oxygenation measured invasively in brain tissue, but there was no difference in rSO2.
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Affiliation(s)
- Annika Nelskylä
- Department of Emergency Medicine and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jaana Humaloja
- Department of Emergency Medicine and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Erik Litonius
- Division of Intensive Care, Department of Anaesthesiology, Intensive Care, and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Pirkka Pekkarinen
- Division of Intensive Care, Department of Anaesthesiology, Intensive Care, and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Giovanni Babini
- Department of Emergency Medicine and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Tomi P Mäki-Aho
- Department of Emergency Medicine and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Juho A Heinonen
- Division of Intensive Care, Department of Anaesthesiology, Intensive Care, and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Markus B Skrifvars
- Department of Emergency Medicine and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
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12
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Spraider P, Martini J, Abram J, Putzer G, Ranalter M, Mathis S, Hell T, Barnes T, Enk D. Individualised flow-controlled ventilation versus pressure-controlled ventilation in a porcine model of thoracic surgery requiring one-lung ventilation: A laboratory study. Eur J Anaesthesiol 2022; 39:885-894. [PMID: 36125005 DOI: 10.1097/eja.0000000000001745] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Flow-controlled ventilation (FCV) enables precise determination of dynamic compliance due to a continuous flow coupled with direct tracheal pressure measurement. Thus, pressure settings can be adjusted accordingly in an individualised approach. OBJECTIVE The aim of this study was to compare gas exchange of individualised FCV to pressure-controlled ventilation (PCV) in a porcine model of simulated thoracic surgery requiring one-lung ventilation (OLV). DESIGN Controlled interventional trial conducted on 16 domestic pigs. SETTING Animal operating facility at the Medical University of Innsbruck. INTERVENTIONS Thoracic surgery was simulated with left-sided thoracotomy and subsequent collapse of the lung over a period of three hours. When using FCV, ventilation was performed with compliance-guided pressure settings. When using PCV, end-expiratory pressure was adapted to achieve best compliance with peak pressure adjusted to achieve a tidal volume of 6 ml kg -1 during OLV. MAIN OUTCOME MEASURES Gas exchange was assessed by the Horowitz index (= P aO 2 /FIO 2 ) and CO 2 removal by the P aCO 2 value in relation to required respiratory minute volume. RESULTS In the FCV group ( n = 8) normocapnia could be maintained throughout the OLV trial despite a significantly lower respiratory minute volume compared to the PCV group ( n = 8) (8.0 vs. 11.6, 95% confidence interval, CI -4.5 to -2.7 l min -1 ; P < 0.001), whereas permissive hypercapnia had to be accepted in PCV ( P aCO 2 5.68 vs. 6.89, 95% CI -1.7 to -0.7 kPa; P < 0.001). The Horowitz index was comparable in both groups but calculated mechanical power was significantly lower in FCV (7.5 vs. 22.0, 95% CI -17.2 to -11.8 J min -1 ; P < 0.001). CONCLUSIONS In this porcine study FCV maintained normocapnia during OLV, whereas permissive hypercapnia had to be accepted in PCV despite a substantially higher minute volume. Reducing exposure of the lungs to mechanical power applied by the ventilator in FCV offers a possible advantage for this mode of ventilation in terms of lung protection.
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Affiliation(s)
- Patrick Spraider
- From the Department of Anaesthesia and Intensive Care Medicine, Medical University Innsbruck, Austria (PS, JM, JA, GP, MR, SM), Department of Mathematics, Faculty of Mathematics, Computer Science and Physics, University of Innsbruck, Austria (TH), University of Greenwich, UK (TB), Faculty of Medicine, University of Münster, Germany (DE)
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13
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Vammen L, Johannsen CM, Magnussen A, Povlsen A, Petersen SR, Azizi A, Pedersen M, Korshøj AR, Ringgaard S, Løfgren B, Andersen LW, Granfeldt A. Cerebral monitoring in a pig model of cardiac arrest with 48 h of intensive care. Intensive Care Med Exp 2022; 10:45. [PMID: 36284020 PMCID: PMC9596181 DOI: 10.1186/s40635-022-00475-2] [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: 08/03/2022] [Accepted: 10/17/2022] [Indexed: 11/17/2022] Open
Abstract
Background Neurological injury is the primary cause of death after out-of-hospital cardiac arrest. There is a lack of studies investigating cerebral injury beyond the immediate post-resuscitation phase in a controlled cardiac arrest experimental setting. Methods The aim of this study was to investigate temporal changes in measures of cerebral injury and metabolism in a cardiac arrest pig model with clinically relevant post-cardiac arrest intensive care. A cardiac arrest group (n = 11) underwent 7 min of no-flow and was compared with a sham group (n = 6). Pigs underwent intensive care with 24 h of hypothermia at 33 °C. Blood markers of cerebral injury, cerebral microdialysis, and intracranial pressure (ICP) were measured. After 48 h, pigs underwent a cerebral MRI scan. Data are presented as median [25th; 75th percentiles]. Results Return of spontaneous circulation was achieved in 7/11 pigs. Time to ROSC was 4.4 min [4.2; 10.9]. Both NSE and NfL increased over time (p < 0.001), and were higher in the cardiac arrest group at 48 h (NSE 4.2 µg/L [2.4; 6.1] vs 0.9 [0.7; 0.9], p < 0.001; NfL 63 ng/L [35; 232] vs 29 [21; 34], p = 0.02). There was no difference in ICP at 48 h (17 mmHg [14; 24] vs 18 [13; 20], p = 0.44). The cerebral lactate/pyruvate ratio had secondary surges in 3/7 cardiac arrest pigs after successful resuscitation. Apparent diffusion coefficient was lower in the cardiac arrest group in white matter cortex (689 × 10–6 mm2/s [524; 765] vs 800 [799; 815], p = 0.04) and hippocampus (854 [834; 910] vs 1049 [964; 1180], p = 0.03). N-Acetylaspartate was lower on MR spectroscopy in the cardiac arrest group (− 17.2 log [− 17.4; − 17.0] vs − 16.9 [− 16.9; − 16.9], p = 0.03). Conclusions We have developed a clinically relevant cardiac arrest pig model that displays cerebral injury as marked by NSE and NfL elevations, signs of cerebral oedema, and reduced neuron viability. Overall, the burden of elevated ICP was low in the cardiac arrest group. A subset of pigs undergoing cardiac arrest had persisting metabolic disturbances after successful resuscitation. Supplementary Information The online version contains supplementary material available at 10.1186/s40635-022-00475-2.
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Affiliation(s)
- Lauge Vammen
- grid.154185.c0000 0004 0512 597XDepartment of Anesthesiology and Intensive Care, Aarhus University Hospital, Palle Juul Jensens Blvd. 99 G304, 8200 Aarhus N, Denmark ,grid.7048.b0000 0001 1956 2722Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Cecilie Munch Johannsen
- grid.154185.c0000 0004 0512 597XDepartment of Anesthesiology and Intensive Care, Aarhus University Hospital, Palle Juul Jensens Blvd. 99 G304, 8200 Aarhus N, Denmark ,grid.7048.b0000 0001 1956 2722Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Andreas Magnussen
- grid.7048.b0000 0001 1956 2722Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Amalie Povlsen
- grid.7048.b0000 0001 1956 2722Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark ,grid.475435.4Department of Cardiothoracic Anesthesia, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Søren Riis Petersen
- grid.7048.b0000 0001 1956 2722Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Arezo Azizi
- grid.7048.b0000 0001 1956 2722Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Michael Pedersen
- grid.7048.b0000 0001 1956 2722Comparative Medicine Laboratory, Aarhus University, Aarhus N, Denmark
| | - Anders Rosendal Korshøj
- grid.7048.b0000 0001 1956 2722Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark ,grid.154185.c0000 0004 0512 597XDepartment of Neurosurgery, Aarhus University Hospital, Aarhus N, Denmark
| | - Steffen Ringgaard
- grid.7048.b0000 0001 1956 2722MR Research Centre, Aarhus University, Aarhus N, Denmark
| | - Bo Løfgren
- grid.7048.b0000 0001 1956 2722Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark ,grid.154185.c0000 0004 0512 597XResearch Center for Emergency Medicine, Aarhus University Hospital, Aarhus N, Denmark ,grid.415677.60000 0004 0646 8878Department of Medicine, Randers Regional Hospital, Randers, Denmark
| | - Lars W. Andersen
- grid.154185.c0000 0004 0512 597XDepartment of Anesthesiology and Intensive Care, Aarhus University Hospital, Palle Juul Jensens Blvd. 99 G304, 8200 Aarhus N, Denmark ,grid.7048.b0000 0001 1956 2722Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark ,grid.425869.40000 0004 0626 6125Prehospital Emergency Medical Services, Central Denmark Region, Aarhus N, Denmark
| | - Asger Granfeldt
- grid.154185.c0000 0004 0512 597XDepartment of Anesthesiology and Intensive Care, Aarhus University Hospital, Palle Juul Jensens Blvd. 99 G304, 8200 Aarhus N, Denmark ,grid.7048.b0000 0001 1956 2722Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
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14
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Awad EM, Humphries KH, Grunau BE, Norris CM, Christenson JM. Predictors of neurological outcome after out-of-hospital cardiac arrest: sex-based analysis: do males derive greater benefit from hypothermia management than females? Int J Emerg Med 2022; 15:43. [PMID: 36064329 PMCID: PMC9442968 DOI: 10.1186/s12245-022-00447-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 08/19/2022] [Indexed: 11/23/2022] Open
Abstract
Background Previous studies of the effect of sex on after out-of-hospital cardiac arrest (OHCA) outcomes focused on survival to hospital discharge and 1-month survival. Studies on the effect of sex on neurological function after OHCA are still limited. The objective of this study was to identify the predictors of favorable neurological outcome and to examine the association between sex as a biological variable and favorable neurological outcome OHCA. Methods Retrospective analyses of clustered data from the Resuscitation Outcomes Consortium multi-center randomized controlled trial (2011–2015). We included adults with non-traumatic OHCA and EMS-attended OHCA. We used multilevel logistic regression to examine the association between sex and favorable neurological outcomes (modified Rankin Scale) and to identify the predictors of favorable neurological outcome. Results In total, 22,416 patients were included. Of those, 8109 (36.2%) were females. The multilevel analysis identified the following variables as significant predictors of favorable neurological outcome: younger age, shorter duration of EMS arrival to the scene, arrest in public location, witnessed arrest, bystander CPR, chest compression rate (CCR) of 100–120 compressions per minute, induction of hypothermia, and initial shockable rhythm. Two variables, insertion of an advanced airway and administration of epinephrine, were associated with poor neurological outcome. Our analysis showed that males have higher crude rates of survival with favorable neurological outcome (8.6 vs. 4.9%, p < 0.001). However, the adjusted rate was not significant. Further analyses showed that hypothermia had a significantly greater effect on males than females. Conclusions Males had significantly higher crude rates of survival with favorable neurological outcome. However, the adjusted rate was not statistically significant. Males derived significantly greater benefit from hypothermia management than females, but this can possibly be explained by differences in arrest characteristics or in-hospital treatment. In-depth confirmatory studies on the hypothermia effect size by sex are required.
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Affiliation(s)
- Emad M Awad
- Faculty of Medicine, Experimental Medicine, University of British Columbia, 2775 Laurel Street, 10th Floor, Room 10117, Vancouver, BC, V5Z 1M9, Canada. .,BC RESURECT: BC Resuscitation Research Collaborative, Vancouver, British Columbia, Canada.
| | - Karin H Humphries
- BC RESURECT: BC Resuscitation Research Collaborative, Vancouver, British Columbia, Canada.,Division of Cardiology, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.,BC Centre for Improved Cardiovascular Health, Vancouver, British Columbia, Canada
| | - Brian E Grunau
- BC RESURECT: BC Resuscitation Research Collaborative, Vancouver, British Columbia, Canada.,Department of Emergency Medicine, St. Paul's Hospital, Vancouver, British Columbia, Canada.,Department of Emergency Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Colleen M Norris
- Faculties of Nursing, Medicine, and School of Public Health, University of Alberta, Edmonton, Alberta, Canada
| | - Jim M Christenson
- BC RESURECT: BC Resuscitation Research Collaborative, Vancouver, British Columbia, Canada.,Department of Emergency Medicine, St. Paul's Hospital, Vancouver, British Columbia, Canada.,Department of Emergency Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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15
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Nordström CH, Forsse A, Jakobsen RP, Mölström S, Nielsen TH, Toft P, Ungerstedt U. Bedside interpretation of cerebral energy metabolism utilizing microdialysis in neurosurgical and general intensive care. Front Neurol 2022; 13:968288. [PMID: 36034291 PMCID: PMC9399721 DOI: 10.3389/fneur.2022.968288] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 07/11/2022] [Indexed: 12/02/2022] Open
Abstract
The microdialysis technique was initially developed for monitoring neurotransmitters in animals. In 1995 the technique was adopted to clinical use and bedside enzymatic analysis of glucose, pyruvate, lactate, glutamate and glycerol. Under clinical conditions microdialysis has also been used for studying cytokines, protein biomarkers, multiplex proteomic and metabolomic analyses as well as for pharmacokinetic studies and evaluation of blood-brain barrier function. This review focuses on the variables directly related to cerebral energy metabolism and the possibilities and limitations of microdialysis during routine neurosurgical and general intensive care. Our knowledge of cerebral energy metabolism is to a large extent based on animal experiments performed more than 40 years ago. However, the different biochemical information obtained from various techniques should be recognized. The basic animal studies analyzed brain tissue homogenates while the microdialysis technique reflects the variables in a narrow zone of interstitial fluid surrounding the probe. Besides the difference of the volume investigated, the levels of the biochemical variables differ in different compartments. During bedside microdialysis cerebral energy metabolism is primarily reflected in measured levels of glucose, lactate and pyruvate and the lactate to pyruvate (LP) ratio. The LP ratio reflects cytoplasmatic redox-state which increases instantaneously during insufficient aerobic energy metabolism. Cerebral ischemia is characterized by a marked increase in intracerebral LP ratio at simultaneous decreases in intracerebral levels of pyruvate and glucose. Mitochondrial dysfunction is characterized by a moderate increase in LP ratio at a very marked increase in cerebral lactate and normal or elevated levels of pyruvate and glucose. The patterns are of importance in particular for interpretations in transient cerebral ischemia. A new technique for evaluating global cerebral energy metabolism by microdialysis of the draining cerebral venous blood is discussed. In experimental studies it has been shown that pronounced global cerebral ischemia is reflected in venous cerebral blood. Jugular bulb microdialysis has been investigated in patients suffering from subarachnoid hemorrhage, during cardiopulmonary bypass and resuscitation after out of hospital cardiac arrest. Preliminary results indicate that the new technique may give valuable information of cerebral energy metabolism in clinical conditions when insertion of an intracerebral catheter is contraindicated.
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Affiliation(s)
- Carl-Henrik Nordström
- Department of Neurosurgery, Odense University Hospital, Odense, Denmark
- *Correspondence: Carl-Henrik Nordström
| | - Axel Forsse
- Department of Neurosurgery, Rigshospitalet, Copenhagen, Denmark
| | - Rasmus Peter Jakobsen
- Department of Anesthesiology and Intensive Care, Odense University Hospital, Odense, Denmark
| | - Simon Mölström
- Department of Anesthesiology and Intensive Care, Odense University Hospital, Odense, Denmark
| | | | - Palle Toft
- Department of Anesthesiology and Intensive Care, Odense University Hospital, Odense, Denmark
| | - Urban Ungerstedt
- Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
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16
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Annoni F, Peluso L, Hirai LA, Babini G, Khaldi A, Herpain A, Pitisci L, Ferlini L, Garcia B, Taccone FS, Creteur J, Su F. A comprehensive neuromonitoring approach in a large animal model of cardiac arrest. Animal Model Exp Med 2022; 5:56-60. [PMID: 35229991 PMCID: PMC8879632 DOI: 10.1002/ame2.12200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/01/2021] [Accepted: 12/23/2021] [Indexed: 11/27/2022] Open
Abstract
Background Anoxic brain injuries represent the main determinant of poor outcome after cardiac arrest (CA). Large animal models have been described to investigate new treatments during CA and post‐resuscitation phase, but a detailed model that includes extensive neuromonitoring is lacking. Method Before an electrically‐induced 10‐minute CA and resuscitation, 46 adult pigs underwent neurosurgery for placement of a multifunctional probe (intracranial pressure or ICP, tissue oxygen tension or PbtO2 and cerebral temperature) and a bolt‐based technique for the placement and securing of a regional blood flow probe and two sEEG electrodes; two modified cerebral microdialysis (CMD) probes were also inserted in the frontal lobes and accidental misplacement was prevented using a perforated head support. Result 42 animals underwent the CA procedure and 41 achieved the return of spontaneous circulation (ROSC). In 4 cases (8.6%) an adverse event took place during preparation, but only in two cases (4.3%) this was related to the neurosurgery. In 6 animals (13.3%) the minor complications that occurred resolved after probe repositioning. Conclusion Herein we provide a detailed comprehensive neuromonitoring approach in a large animal model of CA that might help future research.
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Affiliation(s)
- Filippo Annoni
- Intensive Care Experimental Laboratory, Intensive Care Unit Erasme Hospital Brussel Belgium
| | - Lorenzo Peluso
- Intensive Care Experimental Laboratory, Intensive Care Unit Erasme Hospital Brussel Belgium
| | | | - Giovanni Babini
- Department of Pathophysiology and Transplants University of Milan Milan Italy
- Department of Anesthesiology Intensive Care and Emergency Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico Milan Italy
| | - Amina Khaldi
- Intensive Care Experimental Laboratory, Intensive Care Unit Erasme Hospital Brussel Belgium
| | - Antoine Herpain
- Intensive Care Experimental Laboratory, Intensive Care Unit Erasme Hospital Brussel Belgium
| | - Lorenzo Pitisci
- Intensive Care Experimental Laboratory, Intensive Care Unit Erasme Hospital Brussel Belgium
| | - Lorenzo Ferlini
- Intensive Care Experimental Laboratory, Intensive Care Unit Erasme Hospital Brussel Belgium
| | - Bruno Garcia
- Intensive Care Experimental Laboratory, Intensive Care Unit Erasme Hospital Brussel Belgium
| | - Fabio Silvio Taccone
- Intensive Care Experimental Laboratory, Intensive Care Unit Erasme Hospital Brussel Belgium
| | - Jacques Creteur
- Intensive Care Experimental Laboratory, Intensive Care Unit Erasme Hospital Brussel Belgium
| | - Fuhong Su
- Intensive Care Experimental Laboratory, Intensive Care Unit Erasme Hospital Brussel Belgium
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17
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Putzer G, Martini J, Mair P, Helbok R. Reply to: Cerebral microdialysis after cardiac arrest - Misinterpretations based on a misconception. Resuscitation 2021; 171:71-72. [PMID: 34979162 DOI: 10.1016/j.resuscitation.2021.12.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 11/16/2022]
Affiliation(s)
- Gabriel Putzer
- Department of Anaesthesiology and Critical Care Medicine, Medical University Innsbruck, Austria.
| | - Judith Martini
- Department of Anaesthesiology and Critical Care Medicine, Medical University Innsbruck, Austria
| | - Peter Mair
- Department of Anaesthesiology and Critical Care Medicine, Medical University Innsbruck, Austria
| | - Raimund Helbok
- Department of Neurology, Medical University Innsbruck, Austria
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18
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Putzer G, Martini J, Spraider P, Abram J, Hornung R, Schmidt C, Bauer M, Pinggera D, Krapf C, Hell T, Glodny B, Helbok R, Mair P. Adrenaline improves regional cerebral blood flow, cerebral oxygenation and cerebral metabolism during CPR in a porcine cardiac arrest model using low-flow extracorporeal support. Resuscitation 2021; 168:151-159. [PMID: 34363854 DOI: 10.1016/j.resuscitation.2021.07.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 07/05/2021] [Accepted: 07/28/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND The effects of adrenaline on cerebral blood vessels during cardiopulmonary resuscitation (CPR) are not well understood. We developed an extracorporeal CPR model that maintains constant low systemic blood flow while allowing adrenaline-associated effects on cerebral vasculature to be assessed at different mean arterial pressure (MAP) levels independently of the effects on systemic blood flow. METHODS After eight minutes of cardiac arrest, low-flow extracorporeal life support (ECLS) (30 ml/kg/min) was started in fourteen pigs. After ten minutes, continuous adrenaline administration was started to achieve MAP values of 40 (n = 7) or 60 mmHg (n = 7). Measurements included intracranial pressure (ICP), cerebral perfusion pressure (CePP), laser-Doppler-derived regional cerebral blood flow (CBF), cerebral regional oxygen saturation (rSO2), brain tissue oxygen tension (PbtO2) and extracellular cerebral metabolites assessed by cerebral microdialysis. RESULTS During ECLS without adrenaline, regional CBF increased by only 5% (25th to 75th percentile: -3 to 14; p=0.2642) and PbtO2 by 6% (0-15; p=0.0073) despite a significant increase in MAP to 28 mmHg (25-30; p<0.0001) and CePP to 10 mmHg (8-13; p<0.0001). Accordingly, cerebral microdialysis parameters showed a profound hypoxic-ischemic pattern. Adrenaline administration significantly improved regional CBF to 29±14% (p=0.0098) and 61±25% (p<0.001) and PbtO2 to 15±11% and 130±82% (both p<0.001) of baseline in the MAP 40 mmHg and MAP 60 mmHg groups, respectively. Importantly, MAP of 60 mmHg was associated with metabolic improvement. CONCLUSION This study shows that adrenaline administration during constant low systemic blood flow increases CePP, regional CBF, cerebral oxygenation and cerebral metabolism.
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Affiliation(s)
- Gabriel Putzer
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Austria
| | - Judith Martini
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Austria.
| | - Patrick Spraider
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Austria
| | - Julia Abram
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Austria
| | - Rouven Hornung
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Austria
| | - Christine Schmidt
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Austria
| | - Marlies Bauer
- Department of Neurosurgery, Medical University of Innsbruck, Austria
| | - Daniel Pinggera
- Department of Neurosurgery, Medical University of Innsbruck, Austria
| | - Christoph Krapf
- Department of Cardiac Surgery, Medical University of Innsbruck, Austria
| | - Tobias Hell
- Department of Mathematics, Faculty of Mathematics, Computer Science and Physics, University of Innsbruck, Austria
| | - Bernhard Glodny
- Department of Radiology, Medical University of Innsbruck, Austria
| | - Raimund Helbok
- Department of Neurology, Medical University of Innsbruck, Austria
| | - Peter Mair
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Austria
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19
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Kienzle MF, Morgan RW, Faerber JA, Graham K, Katcoff H, Landis WP, Topjian AA, Kilbaugh TJ, Nadkarni VM, Berg RA, Sutton RM. The Effect of Epinephrine Dosing Intervals on Outcomes from Pediatric In-Hospital Cardiac Arrest. Am J Respir Crit Care Med 2021; 204:977-985. [PMID: 34265230 DOI: 10.1164/rccm.202012-4437oc] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
RATIONALE Animal studies of cardiac arrest suggest shorter epinephrine dosing intervals than currently recommended (every 3-5 minutes) may be beneficial in select circumstances. OBJECTIVES To evaluate the association between epinephrine dosing intervals and pediatric cardiac arrest outcomes. METHODS Single-center retrospective cohort study of children (<18 years of age) who received ≥1 minute of cardiopulmonary resuscitation and ≥2 doses of epinephrine for an index in-hospital cardiac arrest. Exposure was epinephrine dosing interval: ≤2 minutes (frequent epinephrine) vs. >2 minutes. Primary outcome was survival to hospital discharge with a favorable neurobehavioral outcome (Pediatric Cerebral Performance Category score 1-2 or unchanged). Logistic regression evaluated the association between dosing interval and outcomes; additional analyses explored duration of CPR as a mediator. In a subgroup, the effect of dosing interval on diastolic blood pressure was investigated. MEASUREMENTS AND MAIN RESULTS Between January 2011 and December 2018, 125 patients met inclusion/exclusion criteria; 33 (26%) received frequent epinephrine. Frequent epinephrine was associated with increased odds of survival with favorable neurobehavioral outcome (aOR 2.56; CI95 1.07, 6.14; p=0.036), with 66% of the association mediated by CPR duration. Delta diastolic blood pressure was greater after the second dose of epinephrine among patients who received frequent epinephrine (median [IQR] 6.3 [4.1, 16.9] vs. 0.13 [-2.3, 1.9] mmHg, p=0.034). CONCLUSIONS In patients who received at least two doses of epinephrine, dosing intervals ≤2 minutes were associated with improved neurobehavioral outcomes compared to dosing intervals >2 minutes. Mediation analysis suggests improved outcomes are largely due to frequent epinephrine shortening duration of CPR.
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Affiliation(s)
- Martha F Kienzle
- The Children's Hospital of Philadelphia, 6567, Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
| | - Ryan W Morgan
- The Children's Hospital of Philadelphia, 6567, Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
| | - Jennifer A Faerber
- The Children's Hospital of Philadelphia, 6567, CPCE, Philadelphia, Pennsylvania, United States
| | - Kathryn Graham
- The Children's Hospital of Philadelphia, 6567, Department of Anesthesiology and Critical Care, Philadelphia, Pennsylvania, United States
| | - Hannah Katcoff
- The Children's Hospital of Philadelphia, 6567, Department of Biomedical and Health Informatics, Philadelphia, Pennsylvania, United States
| | - William P Landis
- The Children's Hospital of Philadelphia, 6567, Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
| | - Alexis A Topjian
- University of Pennsylvania Perelman School of Medicine, 14640, Philadelphia, Pennsylvania, United States
| | - Todd J Kilbaugh
- The Children's Hospital of Philadelphia, 6567, Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States
| | - Vinay M Nadkarni
- The Children's Hospital of Philadelphia, 6567, Anesthesia and Critical Care, Philadelphia, Pennsylvania, United States
| | - Robert A Berg
- The Children's Hospital of Philadelphia, 6567, Anesthesiology Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States.,University of Pennsylvania Perelman School of Medicine, 14640, Philadelphia, Pennsylvania, United States
| | - Robert M Sutton
- The Children's Hospital of Philadelphia, 6567, Anesthesiology and Critical Care Medicine, Philadelphia, Pennsylvania, United States;
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20
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Awad EM, Humphries KH, Grunau BE, Christenson JM. Premenopausal-aged females have no neurological outcome advantage after out-of-hospital cardiac arrest: A multilevel analysis of North American populations. Resuscitation 2021; 166:58-65. [PMID: 34271125 DOI: 10.1016/j.resuscitation.2021.06.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/14/2021] [Accepted: 06/20/2021] [Indexed: 11/28/2022]
Abstract
AIM We investigated the impact of premenopausal age on neurological function at hospital discharge in patients with out-of-hospital cardiac arrest (OHCA). We hypothesized that premenopausal-aged females (18-47 years of age) with OHCA would have a higher probability of survival with favourable neurological function at hospital discharge compared with males of the same age group, older males, and older females (>53 years of age). METHODS Retrospective analyses of data from the Resuscitation Outcomes Consortium multi-center randomized controlled trial (June 2011-May 2015). We included adults with non-traumatic OHCA treated by emergency medical service. We stratified the cohort into four groups by age and sex: premenopausal-aged females (18-47 years of age), older females (≥53 years old), younger males (18-47 years of age), and older male. We used multilevel logistic regression to examine the association between age-sex and favourable neurological outcomes (modified Rankin Scale ≤ 3). RESULTS In total, 23,725 patients were included: 1050 (4.5%) premenopausal females; 1930 (8.1%) younger males; 7569 (31.9%) older females; and 13,176 (55.5%) older males. The multilevel analysis showed no difference in neurological outcome between younger males and younger females (OR 0.95, 95% CI 0.69-1.32, p = 0.75). Both older females (OR 0.36, 95% CI 0. 0.26-0.48, p < 0.001) and older males (OR 0.52, 95% CI 0.39-0.69, p < 0.001) had a significantly lower odds of favourable neurological outcome than younger females. Among all groups, older females had the worst outcomes. CONCLUSIONS We did not detect an association between premenopausal age and survival with good neurological outcome, suggesting females sex hormones do not impact OHCA outcomes. Our findings are not in line with results from other studies. Studies that rigorously evaluate menopausal status are required to definitively assess the impact of female sex hormones on outcomes.
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Affiliation(s)
- Emad M Awad
- Faculty of Medicine, Experimental Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Centre for Health Evaluation and Outcome Sciences, Vancouver, British Columbia, Canada.
| | - Karin H Humphries
- Division of Cardiology, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada; BC Centre for Improved Cardiovascular Health, Vancouver, British Columbia, Canada; Centre for Health Evaluation and Outcome Sciences, Vancouver, British Columbia, Canada
| | - Brian E Grunau
- Department of Emergency Medicine, St. Paul's Hospital, Vancouver, British Columbia, Canada; Department of Emergency Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Centre for Health Evaluation and Outcome Sciences, Vancouver, British Columbia, Canada
| | - Jim M Christenson
- Department of Emergency Medicine, St. Paul's Hospital, Vancouver, British Columbia, Canada; Department of Emergency Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Centre for Health Evaluation and Outcome Sciences, Vancouver, British Columbia, Canada
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21
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Hutin A, Levy Y, Lidouren F, Kohlhauer M, Carli P, Ghaleh B, Lamhaut L, Tissier R. Resuscitative endovascular balloon occlusion of the aorta vs epinephrine in the treatment of non-traumatic cardiac arrest in swine. Ann Intensive Care 2021; 11:81. [PMID: 34002305 PMCID: PMC8128970 DOI: 10.1186/s13613-021-00871-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/08/2021] [Indexed: 12/31/2022] Open
Abstract
Background The administration of epinephrine in the management of non-traumatic cardiac arrest remains recommended despite controversial effects on neurologic outcome. The use of resuscitative endovascular balloon occlusion of the aorta (REBOA) could be an interesting alternative. The aim of this study was to compare the effects of these 2 strategies on return of spontaneous circulation (ROSC) and cerebral hemodynamics during cardiopulmonary resuscitation (CPR) in a swine model of non-traumatic cardiac arrest. Results Anesthetized pigs were instrumented and submitted to ventricular fibrillation. After 4 min of no-flow and 18 min of basic life support (BLS) using a mechanical CPR device, animals were randomly submitted to either REBOA or epinephrine administration before defibrillation attempts. Six animals were included in each experimental group (Epinephrine or REBOA). Hemodynamic parameters were similar in both groups during BLS, i.e., before randomization. After epinephrine administration or REBOA, mean arterial pressure, coronary and cerebral perfusion pressures similarly increased in both groups. However, carotid blood flow (CBF) and cerebral regional oxygenation saturation were significantly higher with REBOA as compared to epinephrine administration (+ 125% and + 40%, respectively). ROSC was obtained in 5 animals in both groups. After resuscitation, CBF remained lower in the epinephrine group as compared to REBOA, but it did not achieve statistical significance. Conclusions During CPR, REBOA is as efficient as epinephrine to facilitate ROSC. Unlike epinephrine, REBOA transitorily increases cerebral blood flow and could avoid its cerebral detrimental effects during CPR. These experimental findings suggest that the use of REBOA could be beneficial in the treatment of non-traumatic cardiac arrest.
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Affiliation(s)
- Alice Hutin
- Univ Paris Est Créteil, INSERM, IMRB, 94010, Créteil, France.,Ecole Nationale Vétérinaire D'Alfort, IMRB, AfterROSC Network, 7 avenue du Général de Gaulle, 94700, Maisons-Alfort, France.,SAMU de Paris-ICU, Necker University Hospital, Assistance Publique-Hôpitaux de Paris, Université de Paris, 75015, Paris, France
| | - Yaël Levy
- Univ Paris Est Créteil, INSERM, IMRB, 94010, Créteil, France.,Ecole Nationale Vétérinaire D'Alfort, IMRB, AfterROSC Network, 7 avenue du Général de Gaulle, 94700, Maisons-Alfort, France
| | - Fanny Lidouren
- Univ Paris Est Créteil, INSERM, IMRB, 94010, Créteil, France.,Ecole Nationale Vétérinaire D'Alfort, IMRB, AfterROSC Network, 7 avenue du Général de Gaulle, 94700, Maisons-Alfort, France
| | - Matthias Kohlhauer
- Univ Paris Est Créteil, INSERM, IMRB, 94010, Créteil, France.,Ecole Nationale Vétérinaire D'Alfort, IMRB, AfterROSC Network, 7 avenue du Général de Gaulle, 94700, Maisons-Alfort, France
| | - Pierre Carli
- SAMU de Paris-ICU, Necker University Hospital, Assistance Publique-Hôpitaux de Paris, Université de Paris, 75015, Paris, France
| | - Bijan Ghaleh
- Univ Paris Est Créteil, INSERM, IMRB, 94010, Créteil, France.,Ecole Nationale Vétérinaire D'Alfort, IMRB, AfterROSC Network, 7 avenue du Général de Gaulle, 94700, Maisons-Alfort, France
| | - Lionel Lamhaut
- SAMU de Paris-ICU, Necker University Hospital, Assistance Publique-Hôpitaux de Paris, Université de Paris, 75015, Paris, France.,INSERM U970, PARCC, CEMS, Paris, France
| | - Renaud Tissier
- Univ Paris Est Créteil, INSERM, IMRB, 94010, Créteil, France. .,Ecole Nationale Vétérinaire D'Alfort, IMRB, AfterROSC Network, 7 avenue du Général de Gaulle, 94700, Maisons-Alfort, France.
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22
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Putzer G, Wagner J, Helbok R, Martini J. Elevation of head and thorax after return of spontaneous circulation - A few caveats to consider. Resuscitation 2021; 163:203-204. [PMID: 33895232 DOI: 10.1016/j.resuscitation.2021.03.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 03/15/2021] [Indexed: 11/16/2022]
Affiliation(s)
- Gabriel Putzer
- Department of Anaesthesiology and Critical Care Medicine, Medical University Innsbruck, Austria.
| | - Julian Wagner
- Department of Anaesthesiology and Critical Care Medicine, Medical University Innsbruck, Austria
| | - Raimund Helbok
- Department of Neurology, Medical University Innsbruck, Austria
| | - Judith Martini
- Department of Anaesthesiology and Critical Care Medicine, Medical University Innsbruck, Austria
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23
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"Reply to: Cerebral venous blood is not drained via the internal jugular vein in the pig". Resuscitation 2021; 162:439-440. [PMID: 33592231 DOI: 10.1016/j.resuscitation.2021.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 02/02/2021] [Indexed: 11/20/2022]
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24
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Nordström CH, Jakobsen R, Mølstrøm S, Nielsen TH. Cerebral venous blood is not drained via the internal jugular vein in the pig. Resuscitation 2021; 162:437-438. [PMID: 33582253 DOI: 10.1016/j.resuscitation.2021.01.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 01/04/2021] [Indexed: 10/22/2022]
Affiliation(s)
| | - Rasmus Jakobsen
- Department of Anesthesia and Intensive Care, Odense University Hospital, Denmark
| | - Simon Mølstrøm
- Department of Anesthesia and Intensive Care, Odense University Hospital, Odense C, Denmark
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25
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Slovis JC, Morgan RW, Landis WP, Roberts AL, Marquez AM, Mavroudis CD, Lin Y, Ko T, Nadkarni VM, Berg RA, Sutton RM, Kilbaugh TJ. The physiologic response to rescue therapy with vasopressin versus epinephrine during experimental pediatric cardiac arrest. Resusc Plus 2020; 4:100050. [PMID: 34223324 PMCID: PMC8244440 DOI: 10.1016/j.resplu.2020.100050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/02/2020] [Accepted: 11/03/2020] [Indexed: 11/26/2022] Open
Abstract
Aim Compare vasopressin to a second dose of epinephrine as rescue therapy after ineffective initial doses of epinephrine in diverse models of pediatric in-hospital cardiac arrest. Methods 67 one- to three-month old female swine (10−30 kg) in six experimental cohorts from one laboratory received hemodynamic-directed CPR, a resuscitation method where high quality chest compressions are provided and vasopressor administration is titrated to coronary perfusion pressure (CoPP) ≥20 mmHg. Vasopressors are given when CoPP is <20 mmHg, in sequences of two doses of 0.02 mg/kg epinephrine separated by minimum one-minute, then a rescue dose of 0.4 U/kg vasopressin followed by minimum two-minutes. Invasive measurements were used to evaluate and compare the hemodynamic and neurologic effects of each vasopressor dose. Results Increases in CoPP and cerebral blood flow (CBF) were greater with vasopressin rescue than epinephrine rescue (CoPP: +8.16 [4.35, 12.06] mmHg vs. + 5.43 [1.56, 9.82] mmHg, p = 0.02; CBF: +14.58 [-0.05, 38.12] vs. + 0.00 [-0.77, 18.24] perfusion units (PFU), p = 0.005). Twenty animals (30%) failed to achieve CoPP ≥20 mmHg after two doses of epinephrine; 9/20 (45%) non-responders achieved CoPP ≥20 mmHg after vasopressin. Among all animals, the increase in CBF was greater with vasopressin (+14.58 [-0.58, 38.12] vs. 0.00 [-0.77, 18.24] PFU, p = 0.005). Conclusions CoPP and CBF rose significantly more after rescue vasopressin than after rescue epinephrine. Importantly, CBF increased after vasopressin rescue, but not after epinephrine rescue. In the 30% that failed to meet CoPP of 20 mmHg after two doses of epinephrine, 45% achieved target CoPP with a single rescue vasopressin dose.
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Affiliation(s)
- Julia C Slovis
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, 3401 Civic Center Boulevard, Division of Critical Care Medicine - 6 Wood, Philadelphia, PA 19104, US
| | - Ryan W Morgan
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, 3401 Civic Center Boulevard, Division of Critical Care Medicine - 6 Wood, Philadelphia, PA 19104, US
| | - William P Landis
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, 3401 Civic Center Boulevard, Division of Critical Care Medicine - 6 Wood, Philadelphia, PA 19104, US
| | - Anna L Roberts
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, 3401 Civic Center Boulevard, Division of Critical Care Medicine - 6 Wood, Philadelphia, PA 19104, US
| | - Alexandra M Marquez
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, 3401 Civic Center Boulevard, Division of Critical Care Medicine - 6 Wood, Philadelphia, PA 19104, US
| | - Constantine D Mavroudis
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, 3401 Civic Center Boulevard, Division of Critical Care Medicine - 6 Wood, Philadelphia, PA 19104, US
| | - Yuxi Lin
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, 3401 Civic Center Boulevard, Division of Critical Care Medicine - 6 Wood, Philadelphia, PA 19104, US
| | - Tiffany Ko
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, 3401 Civic Center Boulevard, Division of Critical Care Medicine - 6 Wood, Philadelphia, PA 19104, US
| | - Vinay M Nadkarni
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, 3401 Civic Center Boulevard, Division of Critical Care Medicine - 6 Wood, Philadelphia, PA 19104, US
| | - Robert A Berg
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, 3401 Civic Center Boulevard, Division of Critical Care Medicine - 6 Wood, Philadelphia, PA 19104, US
| | - Robert M Sutton
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, 3401 Civic Center Boulevard, Division of Critical Care Medicine - 6 Wood, Philadelphia, PA 19104, US
| | - Todd J Kilbaugh
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, 3401 Civic Center Boulevard, Division of Critical Care Medicine - 6 Wood, Philadelphia, PA 19104, US
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26
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Kilbaugh TJ, Morgan RW, Berg RA. The neurologic impact of epinephrine during cardiac arrest: Much to learn. Resuscitation 2020; 156:263-264. [PMID: 32890652 DOI: 10.1016/j.resuscitation.2020.07.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 07/22/2020] [Indexed: 02/08/2023]
Affiliation(s)
- Todd J Kilbaugh
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, United States; Perelman School of Medicine at the University of Pennsylvania, United States
| | - Ryan W Morgan
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, United States; Perelman School of Medicine at the University of Pennsylvania, United States
| | - Robert A Berg
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, United States; Perelman School of Medicine at the University of Pennsylvania, United States.
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