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ROSC hypothermia

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https://www.readbyqxmd.com/read/28592725/useful-computed-tomography-score-for-estimation-of-early-neurologic-outcome-in-post-cardiac-arrest-patients-with-therapeutic-hypothermia
#1
Kyu Sun Lee, Sung Eun Lee, Jun Young Choi, Yu-Rha Gho, Minjung Kathy Chae, Eun Jung Park, Mun Hee Choi, Ji Man Hong
BACKGROUND: The Alberta Stroke Program Early CT Score (ASPECTS) is used to assess early ischemic stroke damage. This study compared bilateral ASPECTS (ASPECTS-b) with the gray:white matter ratio (GWR) and quantitative regional abnormality (QRA) to evaluate the prognostic utility of early computed tomography (CT) findings in post-cardiac arrest patients.Methods and Results:Out-of-hospital cardiac arrest patients with return of spontaneous circulation (ROSC) who underwent brain CT (<6 h after onset) and therapeutic hypothermia were recruited from a university hospital over a 2-year period...
June 6, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28562481/extracorporeal-life-support-increases-survival-after-prolonged-ventricular-fibrillation-cardiac-arrest-in-the-rat
#2
Ingrid Anna Maria Magnet, Florian Ettl, Andreas Schober, Alexandra-Maria Warenits, Daniel Grassmann, Michael Wagner, Christoph Schriefl, Christian Clodi, Ursula Teubenbacher, Sandra Högler, Wolfgang Weihs, Fritz Sterz, Andreas Janata
BACKGROUND: Extracorporeal life support (ECLS) for cardiopulmonary resuscitation (CPR) may increase end organ perfusion and thus survival when conventional CPR fails. The aim was to investigate, if after ventricular fibrillation cardiac arrest in rodents ECLS improves outcome compared to conventional CPR. METHODS: In 24 adult male Sprague-Dawley rats (460 to 510 g) resuscitation was started after 10 min of no-flow with ECLS (consisting of an open reservoir, roller pump and membrane oxygenator, connected to a cannulas in the jugular vein and femoral artery, n = 8) or CPR (mechanical chest compressions plus ventilations, n = 8) and compared to a sham group (n = 8)...
May 29, 2017: Shock
https://www.readbyqxmd.com/read/28521971/comparison-of-early-sequential-hypothermia-and-delayed-hypothermia-on-neurological-function-after-resuscitation-in-a-swine-model
#3
Wei Yuan, Jun-Yuan Wu, Yong-Zhen Zhao, Jie Li, Jie-Bin Li, Zhen-Hua Li, Chun-Sheng Li
BACKGROUND: We utilized a porcine cardiac arrest model to compare early sequential hypothermia (ESH) with delayed hypothermia (DH) and no hypothermia (NH) to investigate the different effects on cerebral function after resuscitation. METHODS: After return of spontaneous circulation (ROSC), resuscitated 24 pigs divided into three groups. The ESH group implemented early sequential hypothermia immediately, and the DH group implemented delayed hypothermia at 1 h after ROSC...
May 11, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28450915/emulsified-isoflurane-combined-with-therapeutic-hypothermia-improves-survival-and-neurological-outcomes-in-a-rat-model-of-cardiac-arrest
#4
Meng-Jun Wu, Ya-Jie Zhang, Hai Yu, Bin Liu
Emulsified isoflurane (EIso), when introduced following cardiopulmonary resuscitation (CPR), significantly improves survival and neurological outcomes in a rat model of cardiac arrest (CA). The present study aimed to examine whether EIso combined with therapeutic hypothermia (TH) confers an additive neuroprotective effect. Adult male Sprague-Dawley rats that were subjected to return of spontaneous circulation (ROSC) after a 6-min asphyxia-induced CA were randomized to five groups: Sham group, control group under normothermic conditions, EIso group (4 ml/kg for 30 min under normothermic conditions), TH group (33°C for 2 h), and EIso plus TH group...
March 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28418788/factors-associated-with-delayed-cooling-in-cardiac-arrest-patients
#5
David A Pearson, Katherine Mayer, Catherine M Wares, Michael S Runyon, Jonathan R Studnek, Shana L Ward, Kathi M Kraft, Alan C Heffner
Therapeutic hypothermia has been shown to improve neurologic outcome in medical cardiac arrest patients, yet little is known about factors that delay target temperature achievement. Our primary aim was to identify factors associated with not achieving our institutional "door-to-cool" (DTC) performance goal (emergency department [ED] arrival to temperature of 34°C) of ≤4 hours. Secondary aims included whether achievement of DTC goal was associated with timing of bolus neuromuscular blockade (NMB), survival, or functional outcome...
June 2017: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/28405859/effects-of-mild-hypothermia-on-cerebral-large-and-small-microvessels-blood-flow-in-a-porcine-model-of-cardiac-arrest
#6
Junyuan Wu, Wei Yuan, Jiebin Li, Yongzhen Zhao, Jie Li, Zhenhua Li, Chunsheng Li
BACKGROUND: The effect of mild hypothermia (MH) on microcirculation after resuscitation from cardiac arrest is controversial. The aim of this study was to determine whether MH improves or aggravates the disturbance of cerebral microcirculation. METHODS: Twenty domestic male pigs were randomized into the MH group (n = 8), non-hypothermia (NH) group (n = 8) or sham operation group (n = 4). In the MH group, the animals were initiated rapid intravascular cooling at 1 h after return of spontaneous circulation (ROSC) from 8 min ventricular fibrillation, and the core temperature was reduced to 33 °C for 12 h and then rewarmed to 37 °C...
April 12, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28352966/cold-blooded-evaluating-brain-temperature-by-mri-during-surface-cooling-of-human-subjects
#7
Eric J Curran, Daniel L Wolfson, Richard Watts, Kalev Freeman
BACKGROUND: Targeted temperature management (TTM) confers neurological and survival benefits for post-cardiac arrest patients with return of spontaneous circulation (ROSC) who remain comatose. Specialized equipment for induction of hypothermia is not available in the prehospital setting, and there are no reliable methods for emergency medical services personnel to initiate TTM. We hypothesized that the application of surface cooling elements to the neck will decrease brain temperature and act as initiators of TTM...
March 28, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28222830/impact-of-early-vasopressor-administration-on-neurological-outcomes-after-prolonged-out-of-hospital-cardiac-arrest
#8
Michael W Hubble, Clark Tyson
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...
February 22, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/28202293/therapeutic-hypothermia-attenuates-brain-edema-in-a-pig-model-of-cardiac-arrest-possible-role-of-the-angiopoietin-tie-2-system
#9
Jiebin Li, ChunSheng Li, Wei Yuan, JunYuan Wu, Jie Li, ZhenHua Li, YongZhen Zhao
OBJECTIVE: This study aimed to clarify whether therapeutic hypothermia protects against cerebral edema following cardiac arrest (CA) and cardiopulmonary resuscitation (CPR) in a porcine model via regulating the angiopoietin-Tie-2 ligand-receptor system. METHODS: Male pigs were randomized into the therapeutic hypothermia group, the normothermia group or the sham control group. CA was induced in pigs by untreated ventricular fibrillation for 8min. Brain edema was determined by measuring the cerebral cortical water content at 24h after the return of spontaneous circulation (ROSC)...
February 6, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28166944/recover-of-peripheral-nerve-function-after-prolong-hypothermic-cardiac-arrest-in-a-porcine-model-with-extra-corporeal-life-support
#10
Benedict Kjaergaard, Cristian Sevcencu, Sigridur Olga Magnusdottir, Henrik Bygum Krarup, Thomas Nørgaard Nielsen
OBJECTIVES: Surviving long lasting cardiac arrest following accidental hypothermia has been reported after treatment with extra corporeal life support (ECLS), but there is a risk of neurologic injury. Most surviving hypothermia patients have a prolonged stay in the intensive care unit, where most patients experience polyneuropathy. Theoretically, accidental hypothermic cardiac arrest may in itself contribute to polyneuropathy. This study was designed to examine the impact of three hours of cardiac arrest at a core temperature of 20°C followed by reanimation of peripheral nerve function...
February 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28164831/therapeutic-hypothermia-at-an-urban-public-hospital-development-implementation-experience-and-outcomes
#11
Renaud M Gueret, John M Bailitz, Ashima S Sahni, Aiman Tulaimat
BACKGROUND: Therapeutic hypothermia (TH) improves the outcome of comatose patients suffering an out-of-hospital sudden cardiac arrest (SCA) with shockable rhythm and return of spontaneous circulation (ROSC). Evidence supporting its use in other circumstances is weak and the adoption of TH remains limited. OBJECTIVE: Describe the development and implementation of a TH program at an urban public hospital and report outcomes of out-of-hospital and in-hospital SCA and important quality measures...
January 2017: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/28141610/initiation-of-therapeutic-hypothermia-in-the-emergency-department-a-quality-improvement-project
#12
Cody Yochum, Rose Utley
Therapeutic hypothermia (TH) postresuscitation has been recommended by the American Heart Association (AHA) since 2005. Early initiation of TH and fast achievement of goal temperatures have been associated with better neurological outcomes. The objective of this study was to evaluate the effectiveness of a specific TH protocol for the emergency department (ED) in increasing ED use of TH and decreasing the time from return of spontaneous circulation (ROSC) to initiation of cooling measures. An ED protocol for TH as recommended by the AHA was implemented...
January 2017: Advanced Emergency Nursing Journal
https://www.readbyqxmd.com/read/28011292/utilization-of-palliative-care-services-for-cardiac-arrest-patients-undergoing-therapeutic-hypothermia-a-retrospective-analysis
#13
Emily K Zern, Michael N Young, Taylor Triana, Meng Xu, Benjamin Holmes, Nyal Borges, John A McPherson, Mohana B Karlekar
BACKGROUND: Palliative care (PC) services are integral to the care of patients with advanced medical illnesses. Given the significant morbidity and mortality associated with cardiac arrest, we sought to measure the use and impact of PC in the care of patients treated with therapeutic hypothermia (TH). METHODS: We conducted a retrospective study of 317 consecutive patients undergoing TH after cardiac arrest. We compared intensive care unit (ICU) characteristics and clinical outcomes of subjects who received PC consultation (n=125) to those who did not (n=192)...
March 2017: Resuscitation
https://www.readbyqxmd.com/read/27906641/time-to-cooling-is-associated-with-resuscitation-outcomes
#14
REVIEW
Robert B Schock, Andreas Janata, W Frank Peacock, Nathan S Deal, Sarathi Kalra, Fritz Sterz
Our purpose was to analyze evidence related to timing of cooling from studies of targeted temperature management (TTM) after return of spontaneous circulation (ROSC) after cardiac arrest and to recommend directions for future therapy optimization. We conducted a preliminary review of studies of both animals and patients treated with post-ROSC TTM and hypothesized that a more rapid cooling strategy in the absence of volume-adding cold infusions would provide improved outcomes in comparison with slower cooling...
December 2016: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/27860555/time-to-awakening-is-often-delayed-in-patients-who-receive-targeted-temperature-management-after-cardiac-arrest
#15
Katie Zanyk-McLean, Kelly N Sawyer, Ryan Paternoster, Rebekah Shievitz, William Devlin, Robert Swor
Post cardiac arrest, neuroprognostication remains a complex and clinically challenging issue for critical care providers. For this reason, our primary objective in this study was to determine the frequency of survival and favorable neurological outcomes in post-cardiac arrest patients with delayed time to awakening. To assess whether early withdrawal of care may adversely impact survival, we also sought to describe the time to withdrawal of care of non-surviving patients. We performed a retrospective study of patients resuscitated after cardiac arrest in two large academic community hospitals...
June 2017: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/27694796/mild-hypothermia-protects-pigs-gastric-mucosa-after-cardiopulmonary-resuscitation-via-inhibiting-interleukin-6-il-6-production
#16
Yan Wang, Jian Song, Yuhong Liu, Yaqiang Li, Zhengxin Liu
BACKGROUND The purpose of this study was to determine the effect of mild hypothermia therapy on gastric mucosa after cardiopulmonary resuscitation (CPR) and the underlying mechanism. MATERIAL AND METHODS Ventricular fibrillation was induced in pigs. After CPR, the surviving pigs were divided into mild hypothermia-treated and control groups. The changes in vital signs and hemodynamic parameters were monitored before cardiac arrest and at intervals of 0.5, 1, 2, 4, 6, 12, and 24 h after restoration of spontaneous circulation...
October 3, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27630031/continuous-quality-improvement-efforts-increase-survival-with-favorable-neurologic-outcome-after-out-of-hospital-cardiac-arrest
#17
Karl Sporer, Michael Jacobs, Leo Derevin, Sue Duval, James Pointer
OBJECTIVE: To assess system-wide implementation of specific therapies focused on perfusion during cardiopulmonary resuscitation (CPR) and cerebral recovery after Return of Spontaneous Circulation (ROSC). METHODS: Before and after retrospective analysis of an out-of-hospital cardiac arrest database. Implementation trial in the urban/suburban community of Alameda County, California, USA, population 1.6 million, from November 2009-December 2012. Adult patients with non-traumatic out-of-hospital cardiac arrest (OHCA) who received CPR and/or defibrillation...
September 14, 2016: Prehospital Emergency Care
https://www.readbyqxmd.com/read/27565863/influence-of-core-body-temperature-on-tryptophan-metabolism-kynurenines-and-estimated-ido-activity-in-critically-ill-patients-receiving-target-temperature-management-following-cardiac-arrest
#18
Joerg C Schefold, Nora Fritschi, Gerhard Fusch, Aldin Bahonjic, Wolfram Doehner, Stephan von Haehling, Rene Pschowski, Christian Storm, Tim Schroeder
BACKGROUND/AIMS: Temperature control improves neurological prognosis in comatose cardiac arrest (CA) survivors. Previous reports demonstrate that most affected patients show signs of significant systemic inflammation. In an effort to better characterize potential temperature-related effects on key inflammatory pathways, we investigate the course of Tryptophan (Trp) levels, Tryptophan catabolites (including kynurenines) and indoleamine-2,3-dioxygenase (IDO)-activity in post CA patients...
October 2016: Resuscitation
https://www.readbyqxmd.com/read/27562972/induction-of-therapeutic-hypothermia-during-out-of-hospital-cardiac-arrest-using-a-rapid-infusion-of-cold-saline-the-rinse-trial-rapid-infusion-of-cold-normal-saline
#19
RANDOMIZED CONTROLLED TRIAL
Stephen A Bernard, Karen Smith, Judith Finn, Cindy Hein, Hugh Grantham, Janet E Bray, Conor Deasy, Michael Stephenson, Teresa A Williams, Lahn D Straney, Deon Brink, Richard Larsen, Chris Cotton, Peter Cameron
BACKGROUND: Patients successfully resuscitated by paramedics from out-of-hospital cardiac arrest often have severe neurologic injury. Laboratory and observational clinical reports have suggested that induction of therapeutic hypothermia during cardiopulmonary resuscitation (CPR) may improve neurologic outcomes. One technique for induction of mild therapeutic hypothermia during CPR is a rapid infusion of large-volume cold crystalloid fluid. METHODS: In this multicenter, randomized, controlled trial we assigned adults with out-of-hospital cardiac arrest undergoing CPR to either a rapid intravenous infusion of up to 2 L of cold saline or standard care...
September 13, 2016: Circulation
https://www.readbyqxmd.com/read/27374413/predictors-of-death-among-cardiac-arrest-patients-after-therapeutic-hypothermia-a-non-tertiary-care-center-s-initial-experience
#20
Catarina Ruivo, Célia Jesus, João Morais, Paula Viana
INTRODUCTION AND OBJECTIVES: Therapeutic hypothermia (TH) is recommended for patients with return of spontaneous circulation (ROSC) after cardiac arrest (CA). There is still uncertainty about management, target temperature and duration of TH. In the present study we aim to describe the initial experience of a non-tertiary care center with TH after CA and to determine predictors of mortality. METHODS: During the period 2011-2014, out of 2279 patients hospitalized in the intensive care unit, 82 had a diagnosis of CA with ROSC...
July 2016: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
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