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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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2
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Lin S, Ramadeen A, Sundermann ML, Dorian P, Fink S, Halperin HR, Kiss A, Koller AC, Kudenchuk PJ, McCracken BM, Mohindra R, Morrison LJ, Neumar RW, Niemann JT, Salcido DD, Tiba MH, Youngquist ST, Zviman MM, Menegazzi JJ. Establishing a multicenter, preclinical consortium in resuscitation: A pilot experimental trial evaluating epinephrine in cardiac arrest. Resuscitation 2022; 175:57-63. [PMID: 35472628 DOI: 10.1016/j.resuscitation.2022.04.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/29/2022] [Accepted: 04/18/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Large animal studies are an important step in the translation pathway, but single laboratory experiments do not replicate the variability in patient populations. Our objective was to demonstrate the feasibility of performing a multicenter, preclinical, randomized, double-blinded, placebo-controlled cardiac arrest trial. We evaluated the effect of epinephrine on coronary perfusion pressure (CPP) as previous single laboratory studies have reported mixed results. METHODS Forty-five swine from 5 different laboratories (Ann Arbor, MI; Baltimore, MD; Los Angeles, CA; Pittsburgh, PA; Toronto, ON) using a standard treatment protocol. Ventricular fibrillation was induced and left untreated for 6 min before starting continuous cardiopulmonary resuscitation (CPR). After 2 min of CPR, 9 animals from each lab were randomized to 1 of 3 interventions given over 12 minutes: (1) Continuous IV epinephrine infusion (0.00375 mg/kg/min) with placebo IV normal saline (NS) boluses every 4 min, (2) Continuous placebo IV NS infusion with IV epinephrine boluses (0.015 mg/kg) every 4 min or (3) Placebo IV NS for both infusion and boluses. The primary outcome was mean CPP during the 12 mins of drug therapy. RESULTS There were no significant differences in mean CPP between the three groups: 14.4 ± 6.8 mmHg (epinephrine Infusion), 16.9 ± 5.9 mmHg (epinephrine bolus), and 14.4 ± 5.5 mmHg (placebo) (p = NS). Sensitivity analysis demonstrated inter-laboratory variability in the magnitude of the treatment effect (p = 0.004). CONCLUSION This study demonstrated the feasibility of performing a multicenter, preclinical, randomized, double-blinded cardiac arrest trials. Standard dose epinephrine by bolus or continuous infusion did not increase coronary perfusion pressure during CPR when compared to placebo.
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Affiliation(s)
- Steve Lin
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada; Division of Emergency Medicine, Department of Medicine, University of Toronto, Toronto, ON, Canada.
| | - Andrew Ramadeen
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
| | - Matthew L Sundermann
- Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Paul Dorian
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
| | - Sarah Fink
- Division of Cardiology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Henry R Halperin
- Division of Cardiology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Alex Kiss
- Evaluative Clinical Sciences, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Allison C Koller
- Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Peter J Kudenchuk
- Department of Medicine, Division of Cardiology/Arrhythmia Services, University of Washington, Seattle, WA, USA
| | - Brendan M McCracken
- Department of Emergency Medicine and the Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Rohit Mohindra
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada; North York General Hospital and Schwartz Reisman Emergency Medicine Research Institute, Toronto, ON, Canada
| | - Laurie J Morrison
- Division of Emergency Medicine, Department of Medicine, University of Toronto, Toronto, ON, Canada; Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Robert W Neumar
- Department of Emergency Medicine and the Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan Medical School, Ann Arbor, MI, USA
| | - James T Niemann
- Department of Emergency Medicine, Harbor-UCLA Medical Center, David Geffen School of Medicine at UCLA, Torrance, CA, USA
| | - David D Salcido
- Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Mohamad H Tiba
- Department of Emergency Medicine and the Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Scott T Youngquist
- Department of Surgery, Division of Emergency Medicine, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Menekhem M Zviman
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - James J Menegazzi
- Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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3
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Jaeger D, Koger J, Duhem H, Fritz C, Jeangeorges V, Duarte K, Levy B, Debaty G, Chouihed T. Mildly Reduced Doses of Adrenaline Do Not Affect Key Hemodynamic Parameters during Cardio-Pulmonary Resuscitation in a Pig Model of Cardiac Arrest. J Clin Med 2021; 10:4674. [PMID: 34682797 PMCID: PMC8538222 DOI: 10.3390/jcm10204674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/04/2021] [Accepted: 10/08/2021] [Indexed: 11/30/2022] Open
Abstract
Adrenaline is recommended for cardiac arrest resuscitation, but its effectiveness has been questioned recently. Achieving return of spontaneous circulation (ROSC) is essential and is obtained by increasing coronary perfusion pressure (CPP) after adrenaline injection. A threshold as high as 35 mmHg of CPP may be necessary to obtain ROSC, but increasing doses of adrenaline might be harmful to the brain. Our study aimed to compare the increase in CPP with reduced doses of adrenaline to the recommended 1 mg dose in a pig model of cardiac arrest. Fifteen domestic pigs were randomized into three groups according to the adrenaline doses: 1 mg, 0.5 mg, or 0.25 mg administered every 5 min. Cardiac arrest was induced by ventricular fibrillation; after 5 min of no-flow, mechanical chest compression was resumed. The Wilcoxon test and Kruskal-Wallis exact test were used for the comparison of groups. Fisher's exact test was used to compare categorical variables. CPP, EtCO2 level, cerebral, and tissue near-infrared spectroscopy (NIRS) were measured. CPP was significantly lower in the 0.25 mg group 90 s after the first adrenaline injection: 28.9 (21.2; 35.4) vs. 53.8 (37.8; 58.2) in the 1 mg group (p = 0.008), while there was no significant difference with 0.5 mg 39.6 (32.7; 52.5) (p = 0.056). Overall, 0.25 mg did not achieve the threshold of 35 mmHg. EtCO2 levels were higher at T12 and T14 in the 0.5 mg than in the standard group: 32 (23; 35) vs. 19 (16; 26) and 26 (20; 34) vs. 19 (12; 22) (p < 0.05). Cerebral and tissue NIRS did not show a significant difference between the three groups. CPP after 0.5 mg boluses of adrenaline was not significantly different from the recommended 1 mg in our model of cardiac arrest.
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Affiliation(s)
- Deborah Jaeger
- SAMU-SMUR, Service d’Urgences, CHRU Nancy, 54000 Nancy, France; (D.J.); (J.K.); (V.J.)
- INSERM, Université de Lorraine, 54000 Nancy, France; (C.F.); (B.L.)
| | - Jonathan Koger
- SAMU-SMUR, Service d’Urgences, CHRU Nancy, 54000 Nancy, France; (D.J.); (J.K.); (V.J.)
- INSERM, Université de Lorraine, 54000 Nancy, France; (C.F.); (B.L.)
| | - Helene Duhem
- Service d’Urgences, Université de Grenoble Alpes/CNRS/CHU de Grenoble Alpes, 38000 Grenoble, France; (H.D.); (G.D.)
| | - Caroline Fritz
- INSERM, Université de Lorraine, 54000 Nancy, France; (C.F.); (B.L.)
- Département d’Anesthésie et de Réanimation, HEGP, Assistance Publique–Hôpitaux de Paris, 75015 Paris, France
| | - Victor Jeangeorges
- SAMU-SMUR, Service d’Urgences, CHRU Nancy, 54000 Nancy, France; (D.J.); (J.K.); (V.J.)
| | - Kevin Duarte
- Centre d’Investigation Clinique Plurithématique, INSERM, Université de Lorraine, 54000 Nancy, France;
| | - Bruno Levy
- INSERM, Université de Lorraine, 54000 Nancy, France; (C.F.); (B.L.)
- Service de Réanimation Médicale Brabois, Pôle Cardio-Médico-Chirurgical, CHRU Nancy, 54000 Nancy, France
| | - Guillaume Debaty
- Service d’Urgences, Université de Grenoble Alpes/CNRS/CHU de Grenoble Alpes, 38000 Grenoble, France; (H.D.); (G.D.)
| | - Tahar Chouihed
- SAMU-SMUR, Service d’Urgences, CHRU Nancy, 54000 Nancy, France; (D.J.); (J.K.); (V.J.)
- INSERM, Université de Lorraine, 54000 Nancy, France; (C.F.); (B.L.)
- Centre d’Investigation Clinique Plurithématique, INSERM, Université de Lorraine, 54000 Nancy, France;
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4
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Mavroudis CD, Ko TS, Morgan RW, Volk LE, Landis WP, Smood B, Xiao R, Hefti M, Boorady TW, Marquez A, Karlsson M, Licht DJ, Nadkarni VM, Berg RA, Sutton RM, Kilbaugh TJ. Epinephrine's effects on cerebrovascular and systemic hemodynamics during cardiopulmonary resuscitation. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2020; 24:583. [PMID: 32993753 PMCID: PMC7522922 DOI: 10.1186/s13054-020-03297-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 09/17/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND Despite controversies, epinephrine remains a mainstay of cardiopulmonary resuscitation (CPR). Recent animal studies have suggested that epinephrine may decrease cerebral blood flow (CBF) and cerebral oxygenation, possibly potentiating neurological injury during CPR. We investigated the cerebrovascular effects of intravenous epinephrine in a swine model of pediatric in-hospital cardiac arrest. The primary objectives of this study were to determine if (1) epinephrine doses have a significant acute effect on CBF and cerebral tissue oxygenation during CPR and (2) if the effect of each subsequent dose of epinephrine differs significantly from that of the first. METHODS One-month-old piglets (n = 20) underwent asphyxia for 7 min, ventricular fibrillation, and CPR for 10-20 min. Epinephrine (20 mcg/kg) was administered at 2, 6, 10, 14, and 18 min of CPR. Invasive (laser Doppler, brain tissue oxygen tension [PbtO2]) and noninvasive (diffuse correlation spectroscopy and diffuse optical spectroscopy) measurements of CBF and cerebral tissue oxygenation were simultaneously recorded. Effects of subsequent epinephrine doses were compared to the first. RESULTS With the first epinephrine dose during CPR, CBF and cerebral tissue oxygenation increased by > 10%, as measured by each of the invasive and noninvasive measures (p < 0.001). The effects of epinephrine on CBF and cerebral tissue oxygenation decreased with subsequent doses. By the fifth dose of epinephrine, there were no demonstrable increases in CBF of cerebral tissue oxygenation. Invasive and noninvasive CBF measurements were highly correlated during asphyxia (slope effect 1.3, p < 0.001) and CPR (slope effect 0.20, p < 0.001). CONCLUSIONS This model suggests that epinephrine increases CBF and cerebral tissue oxygenation, but that effects wane following the third dose. Noninvasive measurements of neurological health parameters hold promise for developing and directing resuscitation strategies.
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Affiliation(s)
- Constantine D Mavroudis
- Division of Cardiothoracic Surgery, The Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA, 19104, USA. .,Division of Cardiovascular Surgery, The University of Pennsylvania, Philadelphia, PA, USA.
| | - Tiffany S Ko
- Department of Neurology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Ryan W Morgan
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Lindsay E Volk
- Division of Cardiothoracic Surgery, The Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA, 19104, USA
| | - William P Landis
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Benjamin Smood
- Division of Cardiovascular Surgery, The University of Pennsylvania, Philadelphia, PA, USA
| | - Rui Xiao
- Department of Pediatrics, Division of Biostatistics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Marco Hefti
- Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Timothy W Boorady
- Department of Neurology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Alexandra Marquez
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | | | - Daniel J Licht
- Department of Neurology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Vinay M Nadkarni
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Robert A Berg
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Robert M Sutton
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Todd J Kilbaugh
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
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6
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Nilsen JH, Valkov S, Mohyuddin R, Schanche T, Kondratiev TV, Naesheim T, Sieck GC, Tveita T. Study of the Effects of 3 h of Continuous Cardiopulmonary Resuscitation at 27°C on Global Oxygen Transport and Organ Blood Flow. Front Physiol 2020; 11:213. [PMID: 32372965 PMCID: PMC7177004 DOI: 10.3389/fphys.2020.00213] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 02/24/2020] [Indexed: 12/19/2022] Open
Abstract
Aims Complete restitution of neurologic function after 6 h of pre-hospital resuscitation and in-hospital rewarming has been reported in accidental hypothermia patients with cardiac arrest (CA). However, the level of restitution of circulatory function during long-lasting hypothermic cardiopulmonary resuscitation (CPR) remains largely unknown. We compared the effects of CPR in replacing spontaneous circulation during 3 h at 27°C vs. 45 min at normothermia by determining hemodynamics, global oxygen transport (DO2), oxygen uptake (VO2), and organ blood flow. Methods Anesthetized pigs (n = 7) were immersion cooled to CA at 27°C. Predetermined variables were compared: (1) Before cooling, during cooling to 27°C with spontaneous circulation, after CA and subsequent continuous CPR (n = 7), vs. (2) before CA and during 45 min CPR in normothermic pigs (n = 4). Results When compared to corresponding values during spontaneous circulation at 38°C: (1) After 15 min of CPR at 27°C, cardiac output (CO) was reduced by 74%, mean arterial pressure (MAP) by 63%, DO2 by 47%, but organ blood flow was unaltered. Continuous CPR for 3 h maintained these variables largely unaltered except for significant reduction in blood flow to the heart and brain after 3 h, to the kidneys after 1 h, to the liver after 2 h, and to the stomach and small intestine after 3 h. (2) After normothermic CPR for 15 min, CO was reduced by 71%, MAP by 54%, and DO2 by 63%. After 45 min, hemodynamic function had deteriorated significantly, organ blood flow was undetectable, serum lactate increased by a factor of 12, and mixed venous O2 content was reduced to 18%. Conclusion The level to which CPR can replace CO and MAP during spontaneous circulation at normothermia was not affected by reduction in core temperature in our setting. Compared to spontaneous circulation at normothermia, 3 h of continuous resuscitation at 27°C provided limited but sufficient O2 delivery to maintain aerobic metabolism. This fundamental new knowledge is important in that it encourages early and continuous CPR in accidental hypothermia victims during evacuation and transport.
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Affiliation(s)
- Jan Harald Nilsen
- Anesthesia and Critical Care Research Group, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway.,Department of Research and Education, Norwegian Air Ambulance Foundation, Drøbak, Norway
| | - Sergei Valkov
- Anesthesia and Critical Care Research Group, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
| | - Rizwan Mohyuddin
- Anesthesia and Critical Care Research Group, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
| | - Torstein Schanche
- Anesthesia and Critical Care Research Group, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
| | - Timofei V Kondratiev
- Anesthesia and Critical Care Research Group, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
| | - Torvind Naesheim
- Division of Surgical Medicine and Intensive Care, University Hospital of North Norway, Tromsø, Norway
| | - Gary C Sieck
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, United States
| | - Torkjel Tveita
- Anesthesia and Critical Care Research Group, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway.,Division of Surgical Medicine and Intensive Care, University Hospital of North Norway, Tromsø, Norway
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Jung YH, Lee HY, Jeung KW, Lee BK, Youn CS, Yun SW, Heo T, Min YI. Pralidoxime administered during cardiopulmonary resuscitation facilitates successful resuscitation in a pig model of cardiac arrest. Clin Exp Pharmacol Physiol 2020; 47:236-246. [PMID: 31631356 DOI: 10.1111/1440-1681.13198] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/24/2019] [Accepted: 10/15/2019] [Indexed: 11/29/2022]
Abstract
Pralidoxime is a common antidote for organophosphate poisoning; however, studies have also reported pralidoxime's pressor effect, which may facilitate the restoration of spontaneous circulation (ROSC) after cardiac arrest by improving coronary perfusion pressure (CPP). We investigated the immediate cardiovascular effects of pralidoxime in anaesthetised normal rats and the effects of pralidoxime administration during cardiopulmonary resuscitation (CPR) in a pig model of cardiac arrest. To evaluate the immediate cardiovascular effects of pralidoxime, seven anaesthetised normal rats received saline or pralidoxime (20 mg/kg) in a randomised crossover design, and the responses were determined using the conductance catheter technique. To evaluate the effects of pralidoxime administration during CPR, 22 pigs randomly received either 80 mg/kg of pralidoxime or an equivalent volume of saline during CPR. In the rats, pralidoxime significantly increased arterial pressure than saline (P = .044). The peak effect on arterial pressure was observed in the first minute. In a pig model of cardiac arrest, CPP during CPR was higher in the pralidoxime group than in the control group (P = .002). ROSC was attained in three animals (27.3%) in the control group and nine animals (81.8%) in the pralidoxime group (P = .010). Three animals (27.3%) in the control group and eight animals (72.2%) in the pralidoxime group survived the 6-hour period (P = .033). In conclusion, pralidoxime had a rapid onset of pressor effect. Pralidoxime administered during CPR led to significantly higher rates of ROSC and 6-hour survival by improving CPP in a pig model.
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Affiliation(s)
- Yong Hun Jung
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Korea
- Department of Emergency Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Hyoung Youn Lee
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Korea
| | - Kyung Woon Jeung
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Korea
- Department of Emergency Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Byung Kook Lee
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Korea
- Department of Emergency Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Chun Song Youn
- Department of Emergency Medicine, Seoul St. Mary's Hospital, Seoul, Korea
| | - Seong Woo Yun
- Department of Emergency Medical Technology, Namseoul University, Cheonan, Korea
| | - Tag Heo
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Korea
- Department of Emergency Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Yong Il Min
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Korea
- Department of Emergency Medicine, Chonnam National University Medical School, Gwangju, Korea
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8
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Fothergill RT, Emmerson AC, Iyer R, Lazarus J, Whitbread M, Nolan JP, Deakin CD, Perkins GD. Repeated adrenaline doses and survival from an out-of-hospital cardiac arrest. Resuscitation 2019; 138:316-321. [PMID: 30708076 DOI: 10.1016/j.resuscitation.2019.01.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 12/24/2018] [Accepted: 01/17/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND Adrenaline is the primary drug of choice for resuscitation from out-of-hospital cardiac arrest (OHCA). Although adrenaline may increase the chance of achieving return of spontaneous circulation (ROSC), there is limited evidence that repeated doses of adrenaline improves overall survival, and increasing evidence of a detrimental effect on neurological function in survivors. This paper reports the relationship between repeated doses of adrenaline and survival in a cohort of patients attended by the London Ambulance Service in the United Kingdom. METHODS A retrospective review of OHCA treated by the London Ambulance Service over a one year period. Patients aged ≥18 years who received one or more doses of adrenaline (1 mg bolus) during resuscitation were included in the analyses. Outcomes described are survival to hospital discharge and survival to one year post-arrest. RESULTS Over the one year study period, 3151 patients received adrenaline during OHCA. A significant inverse relationship was found between increasing cumulative doses of adrenaline and survival both to hospital discharge and one year post-arrest. No patients survived after receiving more than ten adrenaline doses. CONCLUSION Our study indicates that repeated doses of adrenaline are associated with decreasing odds of survival. There were no survivors amongst patients requiring more than 10 doses of adrenaline.
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Affiliation(s)
- Rachael T Fothergill
- Clinical Audit and Research Unit, London Ambulance Service NHS Trust, London, United Kingdom; Warwick Clinical Trials Unit, University of Warwick, Coventry, CV4 7AL, United Kingdom.
| | - Amber C Emmerson
- Clinical Audit and Research Unit, London Ambulance Service NHS Trust, London, United Kingdom
| | - Rajeshwari Iyer
- Clinical Audit and Research Unit, London Ambulance Service NHS Trust, London, United Kingdom
| | - Johanna Lazarus
- Clinical Audit and Research Unit, London Ambulance Service NHS Trust, London, United Kingdom
| | - Mark Whitbread
- Medical Directorate, London Ambulance Service NHS Trust, London, United Kingdom
| | - Jerry P Nolan
- Bristol Medical School, University of Bristol, Bristol, BS8 1TH, United Kingdom; Royal United Hospital, Bath, BA3 1NG, United Kingdom; Warwick Clinical Trials Unit, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - Charles D Deakin
- Respiratory BRU, University Hospital Southampton, SO16 6YD, United Kingdom; South Central Ambulance Service NHS Foundation Trust, Otterbourne, United Kingdom
| | - Gavin D Perkins
- Warwick Clinical Trials Unit, University of Warwick, Coventry, CV4 7AL, United Kingdom; University Hospitals Birmingham NHS Foundation Trust, Heartlands Hospital, Bordesley Green East, Birmingham, B9 5SS, United Kingdom
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9
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Magliocca A, Olivari D, De Giorgio D, Zani D, Manfredi M, Boccardo A, Cucino A, Sala G, Babini G, Ruggeri L, Novelli D, Skrifvars MB, Hardig BM, Pravettoni D, Staszewsky L, Latini R, Belloli A, Ristagno G. LUCAS Versus Manual Chest Compression During Ambulance Transport: A Hemodynamic Study in a Porcine Model of Cardiac Arrest. J Am Heart Assoc 2019; 8:e011189. [PMID: 30590977 PMCID: PMC6405722 DOI: 10.1161/jaha.118.011189] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 11/21/2018] [Indexed: 01/11/2023]
Abstract
Background Mechanical chest compression (CC) is currently suggested to deliver sustained high-quality CC in a moving ambulance. This study compared the hemodynamic support provided by a mechanical piston device or manual CC during ambulance transport in a porcine model of cardiopulmonary resuscitation. Methods and Results In a simulated urban ambulance transport, 16 pigs in cardiac arrest were randomized to 18 minutes of mechanical CC with the LUCAS (n=8) or manual CC (n=8). ECG, arterial and right atrial pressure, together with end-tidal CO2 and transthoracic impedance curve were continuously recorded. Arterial lactate was assessed during cardiopulmonary resuscitation and after resuscitation. During the initial 3 minutes of cardiopulmonary resuscitation, the ambulance was stationary, while then proceeded along a predefined itinerary. When the ambulance was stationary, CC-generated hemodynamics were equivalent in the 2 groups. However, during ambulance transport, arterial and coronary perfusion pressure, and end-tidal CO2 were significantly higher with mechanical CC compared with manual CC (coronary perfusion pressure: 43±4 versus 18±4 mmHg; end-tidal CO2: 31±2 versus 19±2 mmHg, P<0.01 at 18 minutes). During cardiopulmonary resuscitation, arterial lactate was lower with mechanical CC compared with manual CC (6.6±0.4 versus 8.2±0.5 mmol/L, P<0.01). During transport, mechanical CC showed greater constancy compared with the manual CC, as represented by a higher CC fraction and a lower transthoracic impedance curve variability ( P<0.01). All animals in the mechanical CC group and 6 (75%) in the manual one were successfully resuscitated. Conclusions This model adds evidence in favor of the use of mechanical devices to provide ongoing high-quality CC and tissue perfusion during ambulance transport.
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Affiliation(s)
- Aurora Magliocca
- Department of Cardiovascular ResearchIstituto di Ricerche Farmacologiche Mario Negri IRCCSMilanItaly
- DIMETSchool of MedicineUniversity of Milano‐BicoccaMonzaItaly
| | - Davide Olivari
- Department of Cardiovascular ResearchIstituto di Ricerche Farmacologiche Mario Negri IRCCSMilanItaly
| | - Daria De Giorgio
- Department of Cardiovascular ResearchIstituto di Ricerche Farmacologiche Mario Negri IRCCSMilanItaly
| | | | | | | | - Alberto Cucino
- Department of Cardiovascular ResearchIstituto di Ricerche Farmacologiche Mario Negri IRCCSMilanItaly
- Dipartimento di Fisiopatologia Medico‐Chirurgica e dei TrapiantiUniversity of MilanMilanoItaly
| | | | - Giovanni Babini
- Department of Cardiovascular ResearchIstituto di Ricerche Farmacologiche Mario Negri IRCCSMilanItaly
- Dipartimento di Fisiopatologia Medico‐Chirurgica e dei TrapiantiUniversity of MilanMilanoItaly
| | - Laura Ruggeri
- Department of Cardiovascular ResearchIstituto di Ricerche Farmacologiche Mario Negri IRCCSMilanItaly
| | - Deborah Novelli
- Department of Cardiovascular ResearchIstituto di Ricerche Farmacologiche Mario Negri IRCCSMilanItaly
| | - Markus B Skrifvars
- Emergency Care and ServicesDepartment of Emergency MedicineUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
| | | | | | - Lidia Staszewsky
- Department of Cardiovascular ResearchIstituto di Ricerche Farmacologiche Mario Negri IRCCSMilanItaly
| | - Roberto Latini
- Department of Cardiovascular ResearchIstituto di Ricerche Farmacologiche Mario Negri IRCCSMilanItaly
| | | | - Giuseppe Ristagno
- Department of Cardiovascular ResearchIstituto di Ricerche Farmacologiche Mario Negri IRCCSMilanItaly
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10
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Berg RA, Sutton RM, Reeder RW, Berger JT, Newth CJ, Carcillo JA, McQuillen PS, Meert KL, Yates AR, Harrison RE, Moler FW, Pollack MM, Carpenter TC, Wessel DL, Jenkins TL, Notterman DA, Holubkov R, Tamburro RF, Dean JM, Nadkarni VM. Association Between Diastolic Blood Pressure During Pediatric In-Hospital Cardiopulmonary Resuscitation and Survival. Circulation 2018; 137:1784-1795. [PMID: 29279413 PMCID: PMC5916041 DOI: 10.1161/circulationaha.117.032270] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 12/07/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND On the basis of laboratory cardiopulmonary resuscitation (CPR) investigations and limited adult data demonstrating that survival depends on attaining adequate arterial diastolic blood pressure (DBP) during CPR, the American Heart Association recommends using blood pressure to guide pediatric CPR. However, evidence-based blood pressure targets during pediatric CPR remain an important knowledge gap for CPR guidelines. METHODS All children ≥37 weeks' gestation and <19 years old in Collaborative Pediatric Critical Care Research Network intensive care units with chest compressions for ≥1 minute and invasive arterial blood pressure monitoring before and during CPR between July 1, 2013, and June 31, 2016, were included. Mean DBP during CPR and Utstein-style standardized cardiac arrest data were collected. The hypothesis was that DBP ≥25 mm Hg during CPR in infants and ≥30 mm Hg in children ≥1 year old would be associated with survival. Primary outcome was survival to hospital discharge. Secondary outcome was survival to hospital discharge with favorable neurological outcome, defined as Pediatric Cerebral Performance Categories 1 to 3 or no worse than prearrest baseline. Multivariable Poisson regression models with robust error estimates were used to estimate the relative risk of outcomes. RESULTS Blinded investigators analyzed blood pressure waveforms during CPR from 164 children, including 60% <1 year old, 60% with congenital heart disease, and 54% after cardiac surgery. The immediate cause of arrest was hypotension in 67%, respiratory decompensation in 44%, and arrhythmia in 19%. Median duration of CPR was 8 minutes (quartiles, 3 and 27 minutes). Ninety percent survived the event, 68% with return of spontaneous circulation and 22% by extracorporeal life support. Forty-seven percent survived to hospital discharge, and 43% survived to discharge with favorable neurological outcome. Maintaining mean DBP ≥25 mm Hg in infants and ≥30 mm Hg in children ≥1 year old occurred in 101 of 164 children (62%) and was associated with survival (adjusted relative risk, 1.7; 95% confidence interval, 1.2-2.6; P=0.007) and survival with favorable neurological outcome (adjusted relative risk, 1.6; 95% confidence interval, 1.1-2.5; P=0.02). CONCLUSIONS These data demonstrate that mean DBP ≥25 mm Hg during CPR in infants and ≥30 mm Hg in children ≥1 year old was associated with greater likelihood of survival to hospital discharge and survival with favorable neurological outcome.
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Affiliation(s)
- Robert A Berg
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania (R.A.B., R.M.S., V.M.N).
| | - Robert M Sutton
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania (R.A.B., R.M.S., V.M.N)
| | - Ron W Reeder
- Department of Pediatrics, University of Utah, Salt Lake City (R.W.R., R.H., J.M.D.)
| | - John T Berger
- Department of Pediatrics, Children's National Medical Center, Washington, DC (J.T.B., M.M.P., D.L.W.)
| | - Christopher J Newth
- Department of Anesthesiology, Children's Hospital of Los Angeles, University of Southern California Keck College of Medicine (C.J.N.)
| | - Joseph A Carcillo
- Department of Critical Care Medicine, Children's Hospital of Pittsburgh, University of Pittsburgh, PA (J.A.C.)
| | - Patrick S McQuillen
- Department of Pediatrics, Benioff Children's Hospital, University of California, San Francisco (P.S.M.)
| | - Kathleen L Meert
- Department of Pediatrics, Children's Hospital of Michigan, Wayne State University, Detroit (K.L.M.)
| | - Andrew R Yates
- Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University, Columbus (A.R.Y.)
| | - Rick E Harrison
- Department of Pediatrics, Mattel Children's Hospital, University of California, Los Angeles (R.E.H.)
| | - Frank W Moler
- Department of Pediatrics, C.S. Mott Children's Hospital, University of Michigan, Ann Arbor (F.W.M.)
| | - Murray M Pollack
- Department of Pediatrics, Children's National Medical Center, Washington, DC (J.T.B., M.M.P., D.L.W.)
- Department of Pediatrics, Phoenix Children's Hospital, AZ (M.M.P.)
| | - Todd C Carpenter
- Department of Pediatrics, Denver Children's Hospital, University of Colorado, Aurora (T.C.C.)
| | - David L Wessel
- Department of Pediatrics, Children's National Medical Center, Washington, DC (J.T.B., M.M.P., D.L.W.)
| | - Tammara L Jenkins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD (T.L.J., R.F.T.)
| | | | - Richard Holubkov
- Department of Pediatrics, University of Utah, Salt Lake City (R.W.R., R.H., J.M.D.)
| | - Robert F Tamburro
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD (T.L.J., R.F.T.)
| | - J Michael Dean
- Department of Pediatrics, University of Utah, Salt Lake City (R.W.R., R.H., J.M.D.)
| | - Vinay M Nadkarni
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania (R.A.B., R.M.S., V.M.N)
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11
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Jung YH, Jeung KW, Lee DH, Jeong YW, Lee SM, Lee BK, Jeong IS, Lee SK, Choi J. Relationship Between Left Ventricle Position and Haemodynamic Parameters During Cardiopulmonary Resuscitation in a Pig Model. Heart Lung Circ 2017; 27:1489-1497. [PMID: 29056259 DOI: 10.1016/j.hlc.2017.08.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 08/14/2017] [Accepted: 08/22/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND From the viewpoint of cardiac pump theory, the area of the left ventricle (LV) subjected to compression increases as the LV lies closer to the sternum, possibly resulting in higher blood flow in patients with LV closer to the sternum. However, no study has evaluated LV position during cardiac arrest or its relationship with haemodynamic parameters during cardiopulmonary resuscitation (CPR). The objectives of this study were to determine whether the position of the LV relative to the anterior-posterior axis representing the direction of chest compression shifts during cardiac arrest and to examine the relationship between LV position and haemodynamic parameters during CPR. METHODS Subcostal view echocardiograms were obtained from 15 pigs with the transducer parallel to the long axis of the sternum before inducing ventricular fibrillation (VF) and during cardiac arrest. Computed tomography was performed in three pigs to objectively observe LV position during cardiac arrest. LV position parameters including the shortest distance between the anterior-posterior axis and the mid-point of the LV chamber (DAP-MidLV), the shortest distance between the anterior-posterior axis and the LV apex (DAP-Apex), and the area fraction of the LV located on the right side of the anterior-posterior axis (LVARight/LVATotal) were measured. RESULTS DAP-MidLV, DAP-Apex, and LVARight/LVATotal decreased progressively during untreated VF and basic life support (BLS), and then increased during advanced cardiovascular life support (ACLS). A repeated measures analysis of variance revealed significant time effects for these parameters. During BLS, the end-tidal carbon dioxide and systolic right atrial pressure were significantly correlated with the LV position parameters. During ACLS, systolic arterial pressure and systolic right atrial pressure were significantly correlated with DAP-MidLV and DAP-Apex. CONCLUSIONS Left ventricular position changed significantly during cardiac arrest compared to the pre-arrest baseline. LV position during CPR had significant correlations with haemodynamic parameters.
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Affiliation(s)
- Yong Hun Jung
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Kyung Woon Jeung
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea.
| | - Dong Hun Lee
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Young Won Jeong
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Sung Min Lee
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Byung Kook Lee
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - In Seok Jeong
- Department of Thoracic and Cardiovascular Surgery, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Sang-Kwon Lee
- Veterinary Medical Imaging, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Jihye Choi
- Veterinary Medical Imaging, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
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12
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Schmidbauer S, Herlitz J, Karlsson T, Axelsson C, Friberg H. Use of automated chest compression devices after out-of-hospital cardiac arrest in Sweden. Resuscitation 2017; 120:95-102. [PMID: 28888812 DOI: 10.1016/j.resuscitation.2017.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 08/11/2017] [Accepted: 09/05/2017] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To evaluate the implementation of automated chest compression cardiopulmonary resuscitation (ACC-CPR) after out-of-hospital cardiac arrest (OHCA) in Sweden during the years 2011 through 2015. The association between ACC-CPR and 30-day survival was studied as a secondary objective. METHODS The Swedish cardiopulmonary resuscitation registry is a prospectively recorded nationwide registry of modified Utstein parameters including all patients with attempted resuscitation after OHCA. Propensity score matching (PSM) was used to adjust for known confounders in the secondary analysis. RESULTS Of the 24,316 patients included in the study population, 32.4% received ACC-CPR, with substantial regional variation ranging from 0.8% to 78.8%. Male gender and an initial shockable rhythm were associated with ACC-CPR, whereas crew witnessed status was associated with manual CPR. Potential markers of prolonged resuscitation attempts (drug administration and endotracheal intubation) were more prevalent in the ACC-CPR group. The unadjusted 30-day survival rate was 6.3% for ACC-CPR patients. The adjusted odds ratio for 30-day survival regarding use of an ACC device was 0.72 (95% CI 0.62-0.84, p<0.001, n=13922). CONCLUSION The use of ACC devices varied significantly between Swedish regions and overall survival to 30days was low among patients receiving ACC-CPR. Although measured and unmeasured confounding might explain our finding of lower survival rates for patients exposed to ACC-CPR, specific guidelines recommending when and how ACC-CPR should be used are warranted as there might be circumstances where these devices do more harm than good.
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Affiliation(s)
- Simon Schmidbauer
- Lund University, Skåne University Hospital, Dept. of Clinical Sciences, Anaesthesiology and Intensive Care, Malmö, Sweden; Center for Cardiac Arrest at Lund University, Lund University, Lund, Sweden.
| | - Johan Herlitz
- Institute of Internal Medicine, Dept. of Metabolism and Cardiovascular Research, Sahlgrenska University Hospital, Gothenburg, Sweden; University of Borås, Prehospen-Centre for Prehospital Research, Faculty of Caring Science, Work Life and Social Welfare, Sweden
| | - Thomas Karlsson
- Health Metrics, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Christer Axelsson
- University of Borås, Prehospen-Centre for Prehospital Research, Faculty of Caring Science, Work Life and Social Welfare, Sweden
| | - Hans Friberg
- Lund University, Skåne University Hospital, Dept. of Clinical Sciences, Anaesthesiology and Intensive Care, Malmö, Sweden; Center for Cardiac Arrest at Lund University, Lund University, Lund, Sweden
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13
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Soar J, Nolan J, Böttiger B, Perkins G, Lott C, Carli P, Pellis T, Sandroni C, Skrifvars M, Smith G, Sunde K, Deakin C. Erweiterte Reanimationsmaßnahmen für Erwachsene („adult advanced life support“). Notf Rett Med 2017. [DOI: 10.1007/s10049-017-0330-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Impact of Early Vasopressor Administration on Neurological Outcomes after Prolonged Out-of-Hospital Cardiac Arrest. Prehosp Disaster Med 2017; 32:297-304. [PMID: 28222830 DOI: 10.1017/s1049023x17000115] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Introduction Vasopressors are associated with return of spontaneous circulation (ROSC), but no long-term benefit has been demonstrated in randomized trials. However, these trials did not control for the timing of vasopressor administration which may influence outcomes. Consequently, the objective of this study was to develop a model describing the likelihood of favorable neurological outcome (cerebral performance category [CPC] 1 or 2) as a function of the public safety answering point call receipt (PSAP)-to-pressor-interval (PPI) in prolonged out-of-hospital cardiac arrest. Hypothesis The likelihood of favorable neurological outcome declines with increasing PPI. METHODS This investigation was a retrospective study of cardiac arrest using linked data from the Cardiac Arrest Registry to Enhance Survival (CARES) database (Centers for Disease Control and Prevention [Atlanta, Georgia USA]; American Heart Association [Dallas, Texas USA]; and Emory University Department of Emergency Medicine [Atlanta, Georgia USA]) and the North Carolina (USA) Prehospital Medical Information System. Adult patients suffering a bystander-witnessed, non-traumatic cardiac arrest between January 2012 and June 2014 were included. Logistic regression was used to calculate the adjusted odds ratio (OR) of neurological outcome as a function of PPI, while controlling for patient age, gender, and race; endotracheal intubation (ETI); shockable rhythm; layperson cardiopulmonary resuscitation (CPR); and field hypothermia. RESULTS Of the 2,100 patients meeting inclusion criteria, 913 (43.5%) experienced ROSC, 618 (29.4%) survived to hospital admission, 187 (8.9%) survived to hospital discharge, and 155 (7.4%) were discharged with favorable neurological outcomes (CPC 1 or 2). Favorable neurological outcome was less likely with increasing PPI (OR=0.90; P<.01) and increasing age (OR=0.97; P<.01). Compared to patients with non-shockable rhythms, patients with shockable rhythms were more likely to have favorable neurological outcomes (OR=7.61; P<.01) as were patients receiving field hypothermia (OR=2.13; P<.01). Patient gender, non-Caucasian race, layperson CPR, and ETI were not independent predictors of favorable neurological outcome. CONCLUSION In this evaluation, time to vasopressor administration was significantly associated with favorable neurological outcome. Among adult, witnessed, non-traumatic arrests, the odds of hospital discharge with CPC 1 or 2 declined by 10% for every one-minute delay between PSAP call-receipt and vasopressor administration. These retrospective observations support the notion of a time-dependent function of vasopressor effectiveness on favorable neurological outcome. Large, prospective studies are needed to verify this relationship. Hubble MW , Tyson C . Impact of early vasopressor administration on neurological outcomes after prolonged out-of-hospital cardiac arrest. Prehosp Disaster Med. 2017; 32(3):297-304.
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15
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Morgan RW, Kilbaugh TJ, Shoap W, Bratinov G, Lin Y, Hsieh TC, Nadkarni VM, Berg RA, Sutton RM. A hemodynamic-directed approach to pediatric cardiopulmonary resuscitation (HD-CPR) improves survival. Resuscitation 2017; 111:41-47. [PMID: 27923692 PMCID: PMC5218511 DOI: 10.1016/j.resuscitation.2016.11.018] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 09/01/2016] [Accepted: 11/22/2016] [Indexed: 12/17/2022]
Abstract
AIM Most pediatric in-hospital cardiac arrests (IHCAs) occur in ICUs where invasive hemodynamic monitoring is frequently available. Titrating cardiopulmonary resuscitation (CPR) to the hemodynamic response of the individual improves survival in preclinical models of adult cardiac arrest. The objective of this study was to determine if titrating CPR to systolic blood pressure (SBP) and coronary perfusion pressure (CoPP) in a pediatric porcine model of asphyxia-associated ventricular fibrillation (VF) IHCA would improve survival as compared to traditional CPR. METHODS After 7min of asphyxia followed by VF, 4-week-old piglets received either hemodynamic-directed CPR (HD-CPR; compression depth titrated to SBP of 90mmHg and vasopressor administration to maintain CoPP ≥20mmHg); or Standard Care (compression depth 1/3 of the anterior-posterior chest diameter and epinephrine every 4min). All animals received CPR for 10min prior to the first defibrillation attempt. CPR was continued for a maximum of 20min. Protocolized intensive care was provided to all surviving animals for 4h. The primary outcome was 4-h survival. RESULTS Survival rate was greater with HD-CPR (12/12) than Standard Care (6/10; p=0.03). CoPP during HD-CPR was higher compared to Standard Care (point estimate +8.1mmHg, CI95: 0.5-15.8mmHg; p=0.04). Chest compression depth was lower with HD-CPR than Standard Care (point estimate -14.0mm, CI95: -9.6 to -18.4mm; p<0.01). Prior to the first defibrillation attempt, more vasopressor doses were administered with HD-CPR vs. Standard Care (median 5 vs. 2; p<0.01). CONCLUSIONS Hemodynamic-directed CPR improves short-term survival compared to standard depth-targeted CPR in a porcine model of pediatric asphyxia-associated VF IHCA.
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Affiliation(s)
- Ryan W Morgan
- The Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, 34th Street & Civic Center Boulevard, Philadelphia, PA 19104, United States.
| | - Todd J Kilbaugh
- The Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, 34th Street & Civic Center Boulevard, Philadelphia, PA 19104, United States
| | - Wesley Shoap
- The Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, 34th Street & Civic Center Boulevard, Philadelphia, PA 19104, United States
| | - George Bratinov
- The Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, 34th Street & Civic Center Boulevard, Philadelphia, PA 19104, United States
| | - Yuxi Lin
- The Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, 34th Street & Civic Center Boulevard, Philadelphia, PA 19104, United States
| | - Ting-Chang Hsieh
- The Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, 34th Street & Civic Center Boulevard, Philadelphia, PA 19104, United States
| | - Vinay M Nadkarni
- The Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, 34th Street & Civic Center Boulevard, Philadelphia, PA 19104, United States
| | - Robert A Berg
- The Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, 34th Street & Civic Center Boulevard, Philadelphia, PA 19104, United States
| | - Robert M Sutton
- The Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, 34th Street & Civic Center Boulevard, Philadelphia, PA 19104, United States
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16
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Solevåg AL, Schmölzer GM. Optimal Chest Compression Rate and Compression to Ventilation Ratio in Delivery Room Resuscitation: Evidence from Newborn Piglets and Neonatal Manikins. Front Pediatr 2017; 5:3. [PMID: 28168185 PMCID: PMC5253459 DOI: 10.3389/fped.2017.00003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 01/09/2017] [Indexed: 11/25/2022] Open
Abstract
Cardiopulmonary resuscitation (CPR) duration until return of spontaneous circulation (ROSC) influences survival and neurologic outcomes after delivery room (DR) CPR. High quality chest compressions (CC) improve cerebral and myocardial perfusion. Improved myocardial perfusion increases the likelihood of a faster ROSC. Thus, optimizing CC quality may improve outcomes both by preserving cerebral blood flow during CPR and by reducing the recovery time. CC quality is determined by rate, CC to ventilation (C:V) ratio, and applied force, which are influenced by the CC provider. Thus, provider performance should be taken into account. Neonatal resuscitation guidelines recommend a 3:1 C:V ratio. CCs should be delivered at a rate of 90/min synchronized with ventilations at a rate of 30/min to achieve a total of 120 events/min. Despite a lack of scientific evidence supporting this, the investigation of alternative CC interventions in human neonates is ethically challenging. Also, the infrequent occurrence of extensive CPR measures in the DR make randomized controlled trials difficult to perform. Thus, many biomechanical aspects of CC have been investigated in animal and manikin models. Despite mathematical and physiological rationales that higher rates and uninterrupted CC improve CPR hemodynamics, studies indicate that provider fatigue is more pronounced when CC are performed continuously compared to when a pause is inserted after every third CC as currently recommended. A higher rate (e.g., 120/min) is also more fatiguing, which affects CC quality. In post-transitional piglets with asphyxia-induced cardiac arrest, there was no benefit of performing continuous CC at a rate of 90/min. Not only rate but duty cycle, i.e., the duration of CC/total cycle time, is a known determinant of CC effectiveness. However, duty cycle cannot be controlled with manual CC. Mechanical/automated CC in neonatal CPR has not been explored, and feedback systems are under-investigated in this population. Evidence indicates that providers perform CC at rates both higher and lower than recommended. Video recording of DR CRP has been increasingly applied and observational studies of what is actually done in relation to outcomes could be useful. Different CC rates and ratios should also be investigated under controlled experimental conditions in animals during perinatal transition.
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Affiliation(s)
- Anne Lee Solevåg
- The Department of Pediatric and Adolescent Medicine, Akershus University Hospital , Lørenskog , Norway
| | - Georg M Schmölzer
- Centre for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital , Edmonton, AB , Canada
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17
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Effects of epinephrine on cerebral oxygenation during cardiopulmonary resuscitation: A prospective cohort study. Resuscitation 2016; 109:138-144. [DOI: 10.1016/j.resuscitation.2016.08.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 08/19/2016] [Accepted: 08/25/2016] [Indexed: 12/31/2022]
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18
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Aktuelle Empfehlungen zum Basic/Advanced Life Support. Med Klin Intensivmed Notfmed 2016; 111:670-681. [DOI: 10.1007/s00063-016-0216-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 08/10/2016] [Accepted: 08/23/2016] [Indexed: 10/20/2022]
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19
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Paal P, Gordon L, Strapazzon G, Brodmann Maeder M, Putzer G, Walpoth B, Wanscher M, Brown D, Holzer M, Broessner G, Brugger H. Accidental hypothermia-an update : The content of this review is endorsed by the International Commission for Mountain Emergency Medicine (ICAR MEDCOM). Scand J Trauma Resusc Emerg Med 2016; 24:111. [PMID: 27633781 PMCID: PMC5025630 DOI: 10.1186/s13049-016-0303-7] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 09/07/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND This paper provides an up-to-date review of the management and outcome of accidental hypothermia patients with and without cardiac arrest. METHODS The authors reviewed the relevant literature in their specialist field. Summaries were merged, discussed and approved to produce this narrative review. RESULTS The hospital use of minimally-invasive rewarming for non-arrested, otherwise healthy, patients with primary hypothermia and stable vital signs has the potential to substantially decrease morbidity and mortality for these patients. Extracorporeal life support (ECLS) has revolutionised the management of hypothermic cardiac arrest, with survival rates approaching 100 % in some cases. Hypothermic patients with risk factors for imminent cardiac arrest (temperature <28 °C, ventricular arrhythmia, systolic blood pressure <90 mmHg), and those who have already arrested, should be transferred directly to an ECLS-centre. Cardiac arrest patients should receive continuous cardiopulmonary resuscitation (CPR) during transfer. If prolonged transport is required or terrain is difficult, mechanical CPR can be helpful. Delayed or intermittent CPR may be appropriate in hypothermic arrest when continuous CPR is impossible. Modern post-resuscitation care should be implemented following hypothermic arrest. Structured protocols should be in place to optimise pre-hospital triage, transport and treatment as well as in-hospital management, including detailed criteria and protocols for the use of ECLS and post-resuscitation care. CONCLUSIONS Based on new evidence, additional clinical experience and clearer management guidelines and documentation, the treatment of accidental hypothermia has been refined. ECLS has substantially improved survival and is the treatment of choice in the patient with unstable circulation or cardiac arrest.
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Affiliation(s)
- Peter Paal
- Department of Anaesthesiology and Critical Care Medicine, Innsbruck University Hospital, Anichstr. 35, 6020 Innsbruck, Austria
- Barts Heart Centre, St Bartholomew’s Hospital, West Smithfield, Barts Health NHS Trust, Queen Mary University of London, KGV Building, Office 10, 1st floor, West Smithfield, London, EC1A 7BE UK
- International Commission of Mountain Emergency Medicine (ICAR MEDCOM), Kloten, Switzerland
| | - Les Gordon
- Department of Anaesthesia, University hospitals, Morecambe Bay Trust, Lancaster, UK
- Langdale Ambleside Mountain Rescue Team, Ambleside, UK
| | - Giacomo Strapazzon
- International Commission of Mountain Emergency Medicine (ICAR MEDCOM), Kloten, Switzerland
- Institute of Mountain Emergency Medicine, EURAC research, Drususallee 1, Bozen/Bolzano, Italy
| | - Monika Brodmann Maeder
- International Commission of Mountain Emergency Medicine (ICAR MEDCOM), Kloten, Switzerland
- Institute of Mountain Emergency Medicine, EURAC research, Drususallee 1, Bozen/Bolzano, Italy
- Department of Emergency Medicine, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Gabriel Putzer
- Department of Anaesthesiology and Critical Care Medicine, Innsbruck University Hospital, Anichstr. 35, 6020 Innsbruck, Austria
| | - Beat Walpoth
- Department of Surgery, Cardiovascular Research, Service of Cardiovascular Surgery, University Hospital Geneva, Geneva, Switzerland
| | - Michael Wanscher
- Department of Cardiothoracic Anaesthesia and Intensive Care 4142, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Doug Brown
- International Commission of Mountain Emergency Medicine (ICAR MEDCOM), Kloten, Switzerland
- Department of Emergency Medicine, University of British Columbia, Vancouver, Canada
| | - Michael Holzer
- Department of Emergency Medicine, Medical University of Vienna, Vienna, Austria
| | - Gregor Broessner
- Department of Neurology, Neurologic Intensive Care Unit, Medical University of Innsbruck, Innsbruck, Austria
| | - Hermann Brugger
- Department of Anaesthesiology and Critical Care Medicine, Innsbruck University Hospital, Anichstr. 35, 6020 Innsbruck, Austria
- Institute of Mountain Emergency Medicine, EURAC research, Drususallee 1, Bozen/Bolzano, Italy
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Soar J, Nolan JP, Böttiger BW, Perkins GD, Lott C, Carli P, Pellis T, Sandroni C, Skrifvars MB, Smith GB, Sunde K, Deakin CD. European Resuscitation Council Guidelines for Resuscitation 2015: Section 3. Adult advanced life support. Resuscitation 2016; 95:100-47. [PMID: 26477701 DOI: 10.1016/j.resuscitation.2015.07.016] [Citation(s) in RCA: 926] [Impact Index Per Article: 115.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jasmeet Soar
- Anaesthesia and Intensive Care Medicine, Southmead Hospital, Bristol, UK.
| | - Jerry P Nolan
- Anaesthesia and Intensive Care Medicine, Royal United Hospital, Bath, UK; School of Clinical Sciences, University of Bristol, UK
| | - Bernd W Böttiger
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital of Cologne, Germany
| | - Gavin D Perkins
- Warwick Medical School, University of Warwick, Coventry, UK; Heart of England NHS Foundation Trust, Birmingham, UK
| | - Carsten Lott
- Department of Anesthesiology, University Medical Center, Johannes Gutenberg-University, Mainz, Germany
| | - Pierre Carli
- SAMU de Paris, Department of Anaesthesiology and Intensive Care, Necker University Hospital, Paris, France
| | - Tommaso Pellis
- Anaesthesia, Intensive Care and Emergency Medical Service, Santa Maria degli Angeli Hospital, Pordenone, Italy
| | - Claudio Sandroni
- Department of Anaesthesiology and Intensive Care, Catholic University School of Medicine, Rome, Italy
| | - Markus B Skrifvars
- Division of Intensive Care, Department of Anaesthesiology, Intensive Care and Pain Medicine, Helsinki University Hospital and Helsinki University, Helsinki, Finland
| | - Gary B Smith
- Centre of Postgraduate Medical Research & Education, Bournemouth University, Bournemouth, UK
| | - Kjetil Sunde
- Department of Anaesthesiology, Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Charles D Deakin
- Cardiac Anaesthesia and Cardiac Intensive Care, NIHR Southampton Respiratory Biomedical Research Unit, University Hospital Southampton, Southampton, UK
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Ryu SJ, Lee SJ, Park CH, Lee SM, Lee DH, Cho YS, Jung YH, Lee BK, Jeung KW. Arterial pressure, end-tidal carbon dioxide, and central venous oxygen saturation in reflecting compression depth. Acta Anaesthesiol Scand 2016; 60:1012-23. [PMID: 27080141 DOI: 10.1111/aas.12728] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/03/2016] [Accepted: 03/06/2016] [Indexed: 12/01/2022]
Abstract
BACKGROUND We sought to investigate the utility of arterial pressure, end-tidal carbon dioxide (ETCO2 ), and central venous oxygen saturation (SCVO2 ) to guide compression depth adjustment. Thus, in a pig model of cardiac arrest, we observed these parameters during cardiopulmonary resuscitation (CPR) with optimal and suboptimal compression depths. METHODS Sixteen pigs underwent three experimental sessions after induction of ventricular fibrillation. First, the animals received two 4-min CPR trials with either optimal (20% of the anteroposterior diameter) or suboptimal (70% of the optimal depth) compression depth. Second, the animals received two 5-min CPR trials with optimal compression depth, in which adrenaline (0.02 mg/kg) or saline placebo was administered. Third, the animals randomly received compression with either optimal or suboptimal depth during advanced cardiovascular life support. RESULTS The systolic arterial pressure reflected compression depth most accurately and immediately (area under the curve [AUC], 0.895-0.939 without adrenaline and 0.928-1.000 with adrenaline). Although the response of ETCO2 to the change in compression depth was 0.5 min slower than that of the systolic arterial pressure, the performance of ETCO2 was comparable with that of systolic arterial pressure. SCVO2 did not reflect compression depth. Adrenaline administration remarkably increased systolic arterial pressure, diastolic arterial pressure, and coronary perfusion pressure but did not affect the ETCO2 readings. CONCLUSION In a pig model of cardiac arrest, systolic arterial pressure reflected compression depth immediately and accurately. The performance of ETCO2 was comparable with that of systolic arterial pressure. SCVO2 did not reflect compression depth.
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Affiliation(s)
- S-J. Ryu
- Department of Emergency Medicine; Chonnam National University Hospital; Gwangju Korea
| | - S-J. Lee
- Department of Emergency Medicine; Myongji Hospital; Goyang Gyeonggi-do Korea
| | - C-H. Park
- Department of Emergency Medicine; Myongji Hospital; Goyang Gyeonggi-do Korea
| | - S-M. Lee
- Department of Emergency Medicine; Chonnam National University Hospital; Gwangju Korea
| | - D-H. Lee
- Department of Emergency Medicine; Chonnam National University Hospital; Gwangju Korea
| | - Y-S. Cho
- Department of Emergency Medicine; Chonnam National University Hospital; Gwangju Korea
| | - Y-H. Jung
- Department of Emergency Medicine; Chonnam National University Hospital; Gwangju Korea
| | - B-K. Lee
- Department of Emergency Medicine; Chonnam National University Hospital; Gwangju Korea
| | - K-W. Jeung
- Department of Emergency Medicine; Chonnam National University Hospital; Gwangju Korea
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Lapostollle F, Agostinucci JM, Adnet F. Dispositifs automatisés de massage cardiaque externe : l’échec d’un concept. MEDECINE INTENSIVE REANIMATION 2016. [DOI: 10.1007/s13546-016-1210-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rottenberg EM. Are the current guideline recommendations for neonatal cardiopulmonary resuscitation safe and effective? Am J Emerg Med 2016; 34:1658-60. [PMID: 27220864 DOI: 10.1016/j.ajem.2016.04.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/26/2016] [Accepted: 04/28/2016] [Indexed: 10/21/2022] Open
Abstract
A recently published review of approaches to optimize chest compressions in the resuscitation of asphyxiated newborns discussed the current recommendations and explored potential determinants of effective neonatal cardiopulmonary resuscitation (CPR). However, not all potential determinants of effective neonatal CPR were explored. Chest compression shallower than the current guideline recommendation of approximately 33% of the anterior-posterior (AP) chest diameter may be safer and more effective. From a physiological standpoint, high-velocity brief duration shallower compression may be more effective than current recommendations. The application of a 1- or 2-finger method of high-impulse CPR, which would depend on the size of the subject, may be more effective than using a 2-thumb (TT) encircling hands method of CPR. Adrenaline should not be used in the treatment of asphyxiated neonates and when necessary titrated vasopressin should be used.
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Hardig BM, Götberg M, Rundgren M, Götberg M, Zughaft D, Kopotic R, Wagner H. Physiologic effect of repeated adrenaline (epinephrine) doses during cardiopulmonary resuscitation in the cath lab setting: A randomised porcine study. Resuscitation 2016; 101:77-83. [PMID: 26876006 DOI: 10.1016/j.resuscitation.2016.01.032] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 01/14/2016] [Accepted: 01/25/2016] [Indexed: 10/22/2022]
Abstract
BACKGROUND This porcine study was designed to explore the effects of repetitive intravenous adrenaline doses on physiologic parameters during CPR. METHODS Thirty-six adult pigs were randomised to four injections of: adrenaline 0.02 mg(kgdose)(-1), adrenaline 0.03 mg(kgdose)(-1) or saline control. The effect on systolic, diastolic and mean arterial blood pressure, cerebral perfusion pressure (CePP), end tidal carbon dioxide (ETCO2), arterial oxygen saturation via pulse oximetry (SpO2), cerebral tissue oximetry (SctO2), were analysed immediately prior to each injection and at peak arterial systolic pressure and arterial blood gases were analysed at baseline and after 15 min. RESULT In the group given 0.02 mg(kgdose)(-1), there were increases in all arterial blood pressures at all 4 pressure peaks but CePP only increased significantly after peak 1. A decrease in ETCO2 following peak 1 and 2 was observed. SctO2 and SpO2 were lowered following injection 2 and beyond. In the group given a 0.03 mg(kgdose)(-1), all ABP's increased at the first 4 pressure peaks but CePP only following 3 pressure peaks. Lower ETCO2, SctO2 and SpO2 were seen at peak 1 and beyond. In the two adrenaline groups, pH and Base Excess were lower and lactate levels higher compared to baseline as well as compared to the control. CONCLUSION Repetitive intravenous adrenaline doses increased ABP's and to some extent also CePP, but significantly decreased organ and brain perfusion. The institutional protocol number: Malmö/Lund Committee for Animal Experiment Ethics, approval reference number: M 192-10.
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Affiliation(s)
| | | | - Malin Rundgren
- Department of Anaesthesiology and Intensive Care, Lund University, Lund, Sweden
| | | | - David Zughaft
- Department of Cardiology, Lund University, Lund, Sweden
| | | | - Henrik Wagner
- Department of Cardiology, Lund University, Lund, Sweden
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Soar J, Nolan J, Böttiger B, Perkins G, Lott C, Carli P, Pellis T, Sandroni C, Skrifvars M, Smith G, Sunde K, Deakin C. Erweiterte Reanimationsmaßnahmen für Erwachsene („adult advanced life support“). Notf Rett Med 2015. [DOI: 10.1007/s10049-015-0085-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Ono Y, Hayakawa M, Wada T, Sawamura A, Gando S. Effects of prehospital epinephrine administration on neurological outcomes in patients with out-of-hospital cardiac arrest. J Intensive Care 2015; 3:29. [PMID: 26110059 PMCID: PMC4478688 DOI: 10.1186/s40560-015-0094-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 06/10/2015] [Indexed: 02/04/2023] Open
Abstract
Background To determine if the effects of epinephrine administration on the outcome of out-of-hospital cardiac arrest (OHCA), patients are associated with the duration of cardiopulmonary resuscitation (CPR) performed by Emergency Medical Service (EMS) personnel. Methods This retrospective, nonrandomized, observational analysis used the All-Japan Utstein Registry, a prospective, nationwide population-based registry of all OHCA patients transported to the hospital by EMS staff as the data source. We stratified all OHCA patients for quartile of EMSs’ CPR duration. Group 1 consisted of patients who fell under the 25th percentile of EMSs’ CPR duration (under 15 min); group 2, patients who fell into the 25th to 50th percentile (between 15 and 19 min); group 3, patients who fell into the 50th to 75th percentile (between 20 and 26 min); and group 4, patients who fell at or above the 75th percentile (over 26 min). The primary endpoint was a favorable neurological outcome 1 month after cardiac arrest. The secondary endpoints were ROSC before arrival at the hospital and 1-month survival. Results A total of 383,811 patients aged over 18 years who had experienced OHCA between 2006 and 2010 in Japan, when stratified for quartile of EMSs’ CPR duration, the epinephrine administration increased the rate of return of spontaneous circulation (ROSC) approximately tenfold in all groups. However, the beneficial effects of epinephrine administration on 1-month survival disappeared in patients on whom EMSs’ CPR had been performed for more than 26 min, and the beneficial effects of epinephrine administration on neurological outcomes were observed only in patients on whom EMSs’ CPR had been performed between 15 and 19 min (odds ratio, 1.327, 95 % confidence intervals, 1.017–1.733 P = 0.037). Conclusions Epinephrine administration is associated with an increase of ROSC and with improvement in the neurological outcome on which EMSs’ CPR duration is performed between 15 and 19 min.
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Affiliation(s)
- Yuichi Ono
- Department of Emergency and Critical Care Medicine, Hokkaido University Hospital, Kita 8, Nishi 5, Kita-ku, Sapporo, Hokkaido 060-8648 Japan
| | - Mineji Hayakawa
- Department of Emergency and Critical Care Medicine, Hokkaido University Hospital, Kita 8, Nishi 5, Kita-ku, Sapporo, Hokkaido 060-8648 Japan
| | - Takeshi Wada
- Department of Emergency and Critical Care Medicine, Hokkaido University Hospital, Kita 8, Nishi 5, Kita-ku, Sapporo, Hokkaido 060-8648 Japan
| | - Atsushi Sawamura
- Department of Emergency and Critical Care Medicine, Hokkaido University Hospital, Kita 8, Nishi 5, Kita-ku, Sapporo, Hokkaido 060-8648 Japan
| | - Satoshi Gando
- Department of Emergency and Critical Care Medicine, Hokkaido University Hospital, Kita 8, Nishi 5, Kita-ku, Sapporo, Hokkaido 060-8648 Japan
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Hubble MW, Johnson C, Blackwelder J, Collopy K, Houston S, Martin M, Wilkes D, Wiser J. Probability of Return of Spontaneous Circulation as a Function of Timing of Vasopressor Administration in Out-of-Hospital Cardiac Arrest. PREHOSP EMERG CARE 2015; 19:457-63. [DOI: 10.3109/10903127.2015.1005262] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
PURPOSE OF REVIEW Whereas there is clear evidence for improved survival with cardiopulmonary resuscitation (CPR) and defibrillation during cardiac arrest management, there is today lacking evidence that any of the recommended and used drugs lead to any long-term benefit for the patients. In this review, we try to discuss our current view on why advanced life support (ALS) today can be performed without the use of drugs, and instead gain all focus on improving the tasks we know improve survival: CPR and defibrillation. RECENT FINDINGS Previous and recent cardiac arrest drug studies have been reviewed. These are mostly consisting of retrospective register data, some experimental data and a few new randomized trials. The alternative drug-free ALS concept is also discussed with relevant studies. SUMMARY There is currently no evidence to support any specific drugs during cardiac arrest. Good-quality CPR, early defibrillation and goal-directed postresuscitation care is more important. Healthcare systems should not prioritize implementation of unproven drugs before good quality of care can be documented. More drug studies are indeed required, and future research needs to incorporate better diagnostic tools to test more specific and tailored therapies that account for underlying causes and individual responsiveness.
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Repeated epinephrine doses during prolonged cardiopulmonary resuscitation have limited effects on myocardial blood flow: a randomized porcine study. BMC Cardiovasc Disord 2014; 14:199. [PMID: 25528598 PMCID: PMC4289585 DOI: 10.1186/1471-2261-14-199] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 12/16/2014] [Indexed: 11/10/2022] Open
Abstract
Background In current guidelines, prolonged cardiopulmonary resuscitation (CPR) mandates administration of repeated intravenous epinephrine (EPI) doses. This porcine study simulating a prolonged CPR-situation in the coronary catheterisation laboratory, explores the effect of EPI-administrations on coronary perfusion pressure (CPP), continuous coronary artery flow average peak velocity (APV) and amplitude spectrum area (AMSA). Methods Thirty-six pigs were randomized 1:1:1 to EPI 0.02 mg/kg/dose, EPI 0.03 mg/kg/dose or saline (control) in an experimental cardiac arrest (CA) model. During 15 minutes of mechanical chest compressions, four EPI/saline-injections were administered, and the effect on CPP, APV and AMSA were recorded. Comparisons were performed between the control and the two EPI-groups and a combination of the two EPI-groups, EPI-all. Result Compared to the control group, maximum peak of CPP (Pmax) after injection 1 and 2 was significantly increased in the EPI-all group (p = 0.022, p = 0.016), in EPI 0.02-group after injection 2 and 3 (p = 0.023, p = 0.027) and in EPI 0.03-group after injection 1 (p = 0.013). At Pmax, APV increased only after first injection in both the EPI-all and the EPI 0.03-group compared with the control group (p = 0.011, p = 0.018). There was no statistical difference of AMSA at any Pmax. Seven out of 12 animals (58%) in each EPI-group versus 10 out of 12 (83%) achieved spontaneous circulation after CA. Conclusion In an experimental CA-CPR pig model repeated doses of intravenous EPI results in a significant increase in APV only after the first injection despite increments in CPP also during the following 2 injections indicating inappropriate changes in coronary vascular resistance during subsequent EPI administration.
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Dumas F, Bougouin W, Geri G, Lamhaut L, Bougle A, Daviaud F, Morichau-Beauchant T, Rosencher J, Marijon E, Carli P, Jouven X, Rea TD, Cariou A. Is epinephrine during cardiac arrest associated with worse outcomes in resuscitated patients? J Am Coll Cardiol 2014; 64:2360-7. [PMID: 25465423 DOI: 10.1016/j.jacc.2014.09.036] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 08/18/2014] [Accepted: 09/04/2014] [Indexed: 11/15/2022]
Abstract
BACKGROUND Although epinephrine is essential for successful return of spontaneous circulation (ROSC), the influence of this drug on recovery during the post-cardiac arrest phase is debatable. OBJECTIVES This study sought to investigate the relationship between pre-hospital use of epinephrine and functional survival among patients with out-of-hospital cardiac arrest (OHCA) who achieved successful ROSC. METHODS We included all patients with OHCA who achieved successful ROSC admitted to a cardiac arrest center from January 2000 to August 2012. Use of epinephrine was coded as yes/no and by dose (none, 1 mg, 2 to 5 mg, >5 mg). A favorable discharge outcome was coded using a Cerebral Performance Category 1 or 2. Analyses incorporated multivariable logistic regression, propensity scoring, and matching methods. RESULTS Of the 1,556 eligible patients, 1,134 (73%) received epinephrine; 194 (17%) of these patients had a good outcome versus 255 of 422 patients (63%) in the nontreated group (p < 0.001). This adverse association of epinephrine was observed regardless of length of resuscitation or in-hospital interventions performed. Compared with patients who did not receive epinephrine, the adjusted odds ratio of intact survival was 0.48 (95% confidence interval [CI]: 0.27 to 0.84) for 1 mg of epinephrine, 0.30 (95% CI: 0.20 to 0.47) for 2 to 5 mg of epinephrine, and 0.23 (95% CI: 0.14 to 0.37) for >5 mg of epinephrine. Delayed administration of epinephrine was associated with worse outcome. CONCLUSIONS In this large cohort of patients who achieved ROSC, pre-hospital use of epinephrine was consistently associated with a lower chance of survival, an association that showed a dose effect and persisted despite post-resuscitation interventions. These findings suggest that additional studies to determine if and how epinephrine may provide long-term functional survival benefit are needed.
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Affiliation(s)
- Florence Dumas
- INSERM U970, Parisian Cardiovascular Research Center, Paris Descartes University, Paris, France; Emergency Department, Cochin-Hotel-Dieu Hospital, APHP, Paris Descartes University, Paris, France.
| | - Wulfran Bougouin
- INSERM U970, Parisian Cardiovascular Research Center, Paris Descartes University, Paris, France; Medical Intensive Care Unit, Cochin Hospital, APHP, Paris Descartes University, Paris, France
| | - Guillaume Geri
- INSERM U970, Parisian Cardiovascular Research Center, Paris Descartes University, Paris, France; Medical Intensive Care Unit, Cochin Hospital, APHP, Paris Descartes University, Paris, France
| | - Lionel Lamhaut
- INSERM U970, Parisian Cardiovascular Research Center, Paris Descartes University, Paris, France; Emergency Medical Services, SAMU 75, Necker Hospital, APHP, Paris, France
| | - Adrien Bougle
- Medical Intensive Care Unit, Cochin Hospital, APHP, Paris Descartes University, Paris, France
| | - Fabrice Daviaud
- Medical Intensive Care Unit, Cochin Hospital, APHP, Paris Descartes University, Paris, France
| | | | - Julien Rosencher
- Department of Cardiology, Cochin Hospital, APHP, Paris Descartes University, Paris, France
| | - Eloi Marijon
- INSERM U970, Parisian Cardiovascular Research Center, Paris Descartes University, Paris, France
| | - Pierre Carli
- Emergency Medical Services, SAMU 75, Necker Hospital, APHP, Paris, France
| | - Xavier Jouven
- INSERM U970, Parisian Cardiovascular Research Center, Paris Descartes University, Paris, France
| | - Thomas D Rea
- Emergency Medical Services, Division of Public Health for Seattle and King County, University of Washington, Seattle, Washington
| | - Alain Cariou
- INSERM U970, Parisian Cardiovascular Research Center, Paris Descartes University, Paris, France; Medical Intensive Care Unit, Cochin Hospital, APHP, Paris Descartes University, Paris, France
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Does a resuscitation pharmacologic bundle of epinephrine, terlipressin, and corticosteroids improve outcome from asphyxial cardiac arrest? Pediatr Crit Care Med 2014; 15:573-4. [PMID: 25000425 DOI: 10.1097/pcc.0000000000000166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lin S, Callaway CW, Shah PS, Wagner JD, Beyene J, Ziegler CP, Morrison LJ. Adrenaline for out-of-hospital cardiac arrest resuscitation: A systematic review and meta-analysis of randomized controlled trials. Resuscitation 2014; 85:732-40. [DOI: 10.1016/j.resuscitation.2014.03.008] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Revised: 02/20/2014] [Accepted: 03/10/2014] [Indexed: 01/01/2023]
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Hahn C, Breil M, Schewe JC, Messelken M, Rauch S, Gräsner JT, Wnent J, Seewald S, Bohn A, Fischer M. Hypertonic saline infusion during resuscitation from out-of-hospital cardiac arrest: A matched-pair study from the German Resuscitation Registry. Resuscitation 2014; 85:628-36. [DOI: 10.1016/j.resuscitation.2013.12.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 12/05/2013] [Accepted: 12/19/2013] [Indexed: 12/23/2022]
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Pro cardiopulmonary resuscitation before defibrillation. Notf Rett Med 2012. [DOI: 10.1007/s10049-011-1567-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Sunde K, Steen PA. The Use of Vasopressor Agents During Cardiopulmonary Resuscitation. Crit Care Clin 2012; 28:189-98. [PMID: 22433482 DOI: 10.1016/j.ccc.2011.10.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Nordseth T, Olasveengen TM, Kvaløy JT, Wik L, Steen PA, Skogvoll E. Dynamic effects of adrenaline (epinephrine) in out-of-hospital cardiac arrest with initial pulseless electrical activity (PEA). Resuscitation 2012; 83:946-52. [PMID: 22429969 DOI: 10.1016/j.resuscitation.2012.02.031] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2011] [Revised: 02/06/2012] [Accepted: 02/23/2012] [Indexed: 10/28/2022]
Abstract
BACKGROUND In cardiac arrest, pulseless electrical activity (PEA) is a challenging clinical syndrome. In a randomized study comparing intravenous (i.v.) access and drugs versus no i.v. access or drugs during advanced life support (ALS), adrenaline (epinephrine) improved return of spontaneous circulation (ROSC) in patients with PEA. Originating from this study, we investigated the time-dependent effects of adrenaline on clinical state transitions in patients with initial PEA, using a non-parametric multi-state statistical model. METHODS AND RESULTS Patients with available defibrillator recordings were included, of whom 101 received adrenaline and 73 did not. There were significantly more state transitions in the adrenaline group than in the no-adrenaline group (rate ratio = 1.6, p<0.001). Adrenaline markedly increased the rate of transition from PEA to ROSC during ALS and slowed the rate of being declared dead; e.g. by 20 min 20% of patients in the adrenaline group had been declared dead and 25% had obtained ROSC, whereas 50% in the no-adrenaline group have been declared dead and 15% had obtained ROSC. The differential effect of adrenaline could be seen after approx. 10 min of ALS for most transitions. For both groups the probability of deteriorating from PEA to asystole was highest during the first 15 min. Adrenaline increased the rate of transition from PEA to ventricular fibrillation or -tachycardia (VF/VT), and from ROSC to VF/VT. CONCLUSIONS Adrenaline has notable clinical effects during ALS in patients with initial PEA. The drug extends the time window for ROSC to develop, but also renders the patient more unstable. Further research should investigate the optimal dose, timing and mode of adrenaline administration during ALS.
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Affiliation(s)
- Trond Nordseth
- Dept of Circulation and Medical Imaging, Faculty of Medicine, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway.
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Plaisance P, Segal N, Fulleda C. Massage cardiaque externe automatisé. MEDECINE INTENSIVE REANIMATION 2012. [DOI: 10.1007/s13546-011-0428-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wagner H, Madsen Hardig B, Steen S, Sjoberg T, Harnek J, Olivecrona GK. Evaluation of coronary blood flow velocity during cardiac arrest with circulation maintained through mechanical chest compressions in a porcine model. BMC Cardiovasc Disord 2011; 11:73. [PMID: 22182425 PMCID: PMC3297515 DOI: 10.1186/1471-2261-11-73] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Accepted: 12/19/2011] [Indexed: 11/18/2022] Open
Abstract
Background Mechanical chest compressions (CCs) have been shown capable of maintaining circulation in humans suffering cardiac arrest for extensive periods of time. Reports have documented a visually normalized coronary blood flow during angiography in such cases (TIMI III flow), but it has never been actually measured. Only indirect measurements of the coronary circulation during cardiac arrest with on-going mechanical CCs have been performed previously through measurement of the coronary perfusion pressure (CPP). In this study our aim was to correlate average peak coronary flow velocity (APV) to CPP during mechanical CCs. Methods In a closed chest porcine model, cardiac arrest was established through electrically induced ventricular fibrillation (VF) in eleven pigs. After one minute, mechanical chest compressions were initiated and then maintained for 10 minutes upon which the pigs were defibrillated. Measurements of coronary blood flow in the left anterior descending artery were made at baseline and during VF with a catheter based Doppler flow fire measuring APV. Furthermore measurements of central (thoracic) venous and arterial pressures were also made in order to calculate the theoretical CPP. Results Average peak coronary flow velocity was significantly higher compared to baseline during mechanical chests compressions and this was observed during the entire period of mechanical chest compressions (12 - 39% above baseline). The APV slowly declined during the 10 min period of mechanical chest compressions, but was still higher than baseline at the end of mechanical chest compressions. CPP was simultaneously maintained at > 20 mmHg during the 10 minute episode of cardiac arrest. Conclusion Our study showed good correlation between CPP and APV which was highly significant, during cardiac arrest with on-going mechanical CCs in a closed chest porcine model. In addition APV was even higher during mechanical CCs compared to baseline. Mechanical CCs can, at minimum, re-establish coronary blood flow in non-diseased coronary arteries during cardiac arrest.
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Affiliation(s)
- Henrik Wagner
- Department of Cardiology, Skane University Hospital, Lund, Lund University, SE-221 85 Lund, Sweden
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Olasveengen TM, Wik L, Sunde K, Steen PA. Outcome when adrenaline (epinephrine) was actually given vs. not given - post hoc analysis of a randomized clinical trial. Resuscitation 2011; 83:327-32. [PMID: 22115931 DOI: 10.1016/j.resuscitation.2011.11.011] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Revised: 11/15/2011] [Accepted: 11/15/2011] [Indexed: 10/15/2022]
Abstract
PURPOSE OF THE STUDY IV line insertion and drugs did not affect long-term survival in an out-of-hospital cardiac arrest (OHCA) randomized clinical trial (RCT). In a previous large registry study adrenaline was negatively associated with survival from OHCA. The present post hoc analysis on the RCT data compares outcomes for patients actually receiving adrenaline to those not receiving adrenaline. MATERIALS AND METHODS Patients from a RCT performed May 2003 to April 2008 were included. Three patients from the original intention-to-treat analysis were excluded due to insufficient documentation of adrenaline administration. Quality of cardiopulmonary resuscitation (CPR) and clinical outcomes were compared. RESULTS Clinical characteristics were similar and CPR quality comparable and within guideline recommendations for 367 patients receiving adrenaline and 481 patients not receiving adrenaline. Odds ratio (OR) for being admitted to hospital, being discharged from hospital and surviving with favourable neurological outcome for the adrenaline vs. no-adrenaline group was 2.5 (CI 1.9, 3.4), 0.5 (CI 0.3, 0.8) and 0.4 (CI 0.2, 0.7), respectively. Ventricular fibrillation, response interval, witnessed arrest, gender, age and endotracheal intubation were confounders in multivariate logistic regression analysis. OR for survival for adrenaline vs. no-adrenaline adjusted for confounders was 0.52 (95% CI: 0.29, 0.92). CONCLUSION Receiving adrenaline was associated with improved short-term survival, but decreased survival to hospital discharge and survival with favourable neurological outcome after OHCA. This post hoc survival analysis is in contrast to the previous intention-to-treat analysis of the same data, but agrees with previous non-randomized registry data. This shows limitations of non-randomized or non-intention-to-treat analyses.
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Affiliation(s)
- Theresa M Olasveengen
- Department of Anaesthesiology and Institute for Experimental Medical Research, Oslo University Hospital, PB 4956 Nydalen, N-0424 Oslo, Norway.
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Nolan JP, Soar J, Zideman DA, Biarent D, Bossaert LL, Deakin C, Koster RW, Wyllie J, Böttiger B. European Resuscitation Council Guidelines for Resuscitation 2010 Section 1. Executive summary. Resuscitation 2011; 81:1219-76. [PMID: 20956052 DOI: 10.1016/j.resuscitation.2010.08.021] [Citation(s) in RCA: 847] [Impact Index Per Article: 65.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jerry P Nolan
- Anaesthesia and Intensive Care Medicine, Royal United Hospital, Bath, UK
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European Resuscitation Council Guidelines for Resuscitation 2010 Section 4. Adult advanced life support. Resuscitation 2011; 81:1305-52. [PMID: 20956049 DOI: 10.1016/j.resuscitation.2010.08.017] [Citation(s) in RCA: 752] [Impact Index Per Article: 57.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Xanthos T, Pantazopoulos I, Demestiha T, Stroumpoulis K. Epinephrine in ventricular fibrillation: friend or foe? A review for the Emergency Nurse. J Emerg Nurs 2011; 37:408-12; quiz 425-6. [PMID: 21741574 DOI: 10.1016/j.jen.2010.10.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2010] [Revised: 09/15/2010] [Accepted: 10/05/2010] [Indexed: 10/18/2022]
Affiliation(s)
- Theodoros Xanthos
- Department of Anatomy, Medical School, University of Athens, Athens, Greece.
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Kramer-Johansen J, Pytte M, Tomlinson AE, Sunde K, Dorph E, Svendsen JVH, Eriksen M, Strømme TA, Wik L. Mechanical chest compressions with trapezoidal waveform improve haemodynamics during cardiac arrest. Resuscitation 2011; 82:213-8. [DOI: 10.1016/j.resuscitation.2010.10.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Revised: 09/15/2010] [Accepted: 10/04/2010] [Indexed: 11/16/2022]
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Abstract
The use of epinephrine during cardiac arrest has been advocated for decades and forms an integral part of the published guidelines. Its efficacy is supported by animal data, but human trial evidence is lacking. This is partly attributable to disparities in trial methodology. Epinephrine’s pharmacologic and physiologic effects include an increase in coronary perfusion pressure that is key to successful resuscitation. One possible explanation for the lack of epinephrine’s demonstrated efficacy in human trials of out-of-hospital cardiac arrest is the delay in its administration. A potential solution may be intraosseus epinephrine, which can be administered quicker. More importantly, it is the quality of the basic life support, early and uninterrupted chest compressions, early defibrillation and postresuscitation care that will provide the best chance of neurologically intact survival.
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Affiliation(s)
| | - Gordon A Ewy
- University of Arizona Sarver Heart Center, University of Arizona, Tucson, AZ, USA
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Martin-Gill C, Guyette FX, Rittenberger JC. Effect of crew size on objective measures of resuscitation for out-of-hospital cardiac arrest. PREHOSP EMERG CARE 2010; 14:229-34. [PMID: 20128704 DOI: 10.3109/10903120903572293] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND There is no consensus among emergency medical services (EMS) systems as to the optimal numbers and training of EMS providers who respond to the scene of prehospital cardiac arrests. Increased numbers of providers may improve the performance of cardiopulmonary resuscitation (CPR), but this has not been studied as part of a comprehensive resuscitation scenario. OBJECTIVE To compare different all-paramedic crew size configurations on objective measures of patient resuscitation using a high-fidelity human simulator. METHODS We compared two-, three-, and four-person all-paramedic crew configurations in the effectiveness and timeliness of performing basic life support (BLS) and advanced life support (ALS) skills during the first 8 minutes of a simulated cardiac arrest scenario. Crews were compared to determine differences in no-flow fraction (NFF) as a measure of effectiveness of CPR and time to defibrillation, endotracheal intubation, establishment of intravenous access, and medication administration. RESULTS There was no significant difference in mean NFF among the two-, three-, and four-provider crew configurations (0.32, 0.26, and 0.27, respectively; p = 0.105). More three- and four-person groups completed ALS procedures during the scenario, but there was no significant difference in time to performance of BLS or ALS procedures among the crew size configurations for completed procedures. There was a trend toward lower time to intubation with increasing group size, though this was not significant using a Bonferroni-corrected p-value of 0.01 (379, 316, and 263 seconds, respectively; p = 0.018). CONCLUSION This study found no significant difference in effectiveness of CPR or in time to performance of BLS or ALS procedures among crew size configurations, though there was a trend toward decreased time to intubation with increased crew size. Effectiveness of CPR may be hindered by distractions related to the performance of ALS procedures with increasing group size, particularly with an all-paramedic provider model. We suggest a renewed emphasis on the provision of effective CPR by designated providers independent of any ALS interventions being performed.
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Affiliation(s)
- Christian Martin-Gill
- Department of Emergency Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA
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Høyer CB, Christensen EF, Eika B. Increase in pre-shock pause caused by drug administration before defibrillation: An observational, full-scale simulation study. Resuscitation 2010; 81:343-7. [DOI: 10.1016/j.resuscitation.2009.12.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2009] [Revised: 12/12/2009] [Accepted: 12/30/2009] [Indexed: 12/01/2022]
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