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Mild hypothermia

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https://www.readbyqxmd.com/read/28431445/-near-drowning-with-good-outcome-after-ecmo-therapy-and-therapeutic-hypothermia-despite-20-minutes-of-anoxia-and-16-hours-of-hypoxia
#1
Peter Stachon, Johannes Kalbhenn, Stephan Walterspacher, Christoph Bode, Dawid Staudacher
Introduction Drowning with submersion over 10 minutes is associated with a high mortality. Here, we present a case, in which a good neurological outcome was achieved after interdisciplinary, intensive care therapy despite submersion of 20 minutes followed by 16 hours of hypoxia. History A 19 year old man drowned in fresh-water. After 20 minutes submersion he was localized and salvaged from 8 meters depth and primarily resuscitated successfully after 10 minutes. Within the next hour, there condition worsened by respiratory deterioration due to a massive capillary leak syndrome in addition to a disseminated intravascular coagulation...
April 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28430379/-17-o-mrs-assesses-the-effect-of-mild-hypothermia-on-oxygen-consumption-rate-in-tumors
#2
Marie-Aline Neveu, Nicolas Joudiou, Géraldine De Preter, Jean-Paul Dehoux, Bénédicte F Jordan, Bernard Gallez
Although oxygen consumption is a key factor in metabolic phenotyping, its assessment in tumors remains critical, as current technologies generally display poor specificity. The objectives of this study were to explore the feasibility of direct (17) O nuclear magnetic resonance (NMR) spectroscopy to assess oxygen metabolism in tumors and its modulations. To investigate the impact of hypometabolism induction in the murine fibrosarcoma FSAII tumor model, we monitored the oxygen consumption of normothermic (37°C) and hypothermic (32°C) tumor-bearing mice...
April 21, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28411927/out-of-hospital-evaluation-and-treatment-of-accidental-hypothermia
#3
REVIEW
Ken Zafren
Accidental hypothermia is an unintentional drop in core temperature to 35°C or below. Core temperature is best measured by esophageal probe. If core temperature cannot be measured, the degree should be estimated using clinical signs. Treatment is to protect from further heat loss, minimize afterdrop, and prevent cardiovascular collapse during rescue and resuscitation. The patient should be handled gently, kept horizontal, insulated, and actively rewarmed. Active rewarming is also beneficial in mild hypothermia but passive rewarming usually suffices...
May 2017: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/28407232/observed-survival-benefit-of-therapeutic-hypothermia-re-analyzing-the-circ-trial
#4
Alexander Nürnberger, Harald Herkner, Fritz Sterz, Jan-Aage Olsen, Michael Lozano, Pierre M van Grunsven, Brooke E Lerner, David Persse, Reinhard Malzer, Marc A Brouwer, Mark Westfall, Chris M Souders, David T Travis, Ulrich R Herken, Lars Wik
BACKGROUND: Mild therapeutic hypothermia is argued being beneficial for outcome after cardiac arrest. MATERIALS AND METHODS: Retrospective analysis of Circulation Improving Resuscitation Care trial data to assess if therapeutic cooling to 33 ±1°C core temperature had an association with survival. Of 4,231 adult out-of-hospital cardiac arrests of presumed cardiac origin initially enrolled, eligibility criteria for therapeutic hypothermia were met by 1,812. Logistic regression was undertaken in a stepwise fashion to account for the impact on outcome of each significant difference and for the variable of interest between the groups...
April 13, 2017: European Journal of Clinical Investigation
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
#5
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/28383534/the-effect-of-therapeutic-hypothermia-on-heart-rate-variability
#6
Z A Vesoulis, R Rao, S B Trivedi, A M Mathur
OBJECTIVE: Heart rate variability (HRV) reflects integrity of the autonomic nervous system. However, no study has investigated the impact of therapeutic hypothermia (TH) on HRV measures in infants with hypoxic-ischemic encephalopathy (HIE). In this study, we evaluate the influence of temperature on measures of HRV for a group of infants with favorable outcomes, as compared with a control group of infants with unfavorable outcomes. STUDY DESIGN: Term-born infants with moderate-severe HIE underwent standard TH treatment and prospective electroencephalography (EEG) and electrocardiogram (ECG) recording...
April 6, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28376079/pattern-of-brain-injury-and-depressed-heart-rate-variability-in-newborns-with-hypoxic-ischemic-encephalopathy
#7
Marina Metzler, Rathinaswamy Govindan, Tareq Al-Shargabi, Gilbert Vezina, Nickie Andescavage, Yunfei Wang, Adre du Plessis, An N Massaro
BACKGROUND: Decreased heart rate variability (HRV) is a measure of autonomic dysfunction and brain injury in newborns with hypoxic ischemic encephalopathy (HIE). This study aimed to characterize the relationship between HRV and brain injury pattern by MRI in newborns with HIE undergoing therapeutic hypothermia. METHODS: HRV metrics were quantified in the time domain (αS, αL, and root mean square at short [RMSS] and long [RMSL] time scales) and frequency domain (relative low-[LF] and high-frequency [HF] power) during the time period 24-27 h of life...
April 4, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28369386/robotic-mitral-valve-repair-a-european-single-centre-experience
#8
Emiliano Navarra, Stefano Mastrobuoni, Laurent De Kerchove, David Glineur, Christine Watremez, Michel Van Dyck, Gebrine El Khoury, Philippe Noirhomme
OBJECTIVES: We report the outcomes of robotic valve repair for degenerative mitral regurgitation (MR) in our Institution. METHODS: Between February 2012 and July 2016, 134 patients underwent robotic mitral valve (MV) repair with the da Vinci Si system. All the operations were performed through a mini-thoracotomy in the fourth right intercostal space, cardiopulmonary bypass and mild hypothermia. The clinical and echocardiographic follow-up was 100% complete. RESULTS: There was no hospital death...
March 20, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28365156/mild-hypothermia-protects-against-oxygen-glucose-deprivation-reoxygenation-induced-apoptosis-via-the-wnt-%C3%AE-catenin-signaling-pathway-in-hippocampal-neurons
#9
Zhou Tianen, Yanran Liang, Longyuan Jiang, Tao Yu, Chaotao Zeng, Tao Enxiang
Mild hypothermia is thought to be one of the most effective therapies for cerebral ischemia/reperfusion injuries. Our previous research revealed that mild hypothermia inhibits the activation of caspase-3 and protects against oxygen glucose deprivation/reoxygenation (OGD/R)-induced injury in hippocampal neurons. However, the mechanisms behind the activation of caspase-3 remain unclear. The aims of this study were to determine whether the protective effects of mild hypothermia were exerted through the Wnt/β-catenin signaling pathway...
March 29, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28355299/mild-hypothermia-alleviates-brain-oedema-and-blood-brain-barrier-disruption-by-attenuating-tight-junction-and-adherens-junction-breakdown-in-a-swine-model-of-cardiopulmonary-resuscitation
#10
Jiebin Li, Chunsheng Li, Wei Yuan, Junyuan Wu, Jie Li, Zhenhua Li, Yongzhen Zhao
Mild hypothermia improves survival and neurological recovery after cardiac arrest (CA) and cardiopulmonary resuscitation (CPR). However, the mechanism underlying this phenomenon is not fully elucidated. The aim of this study was to determine whether mild hypothermia alleviates early blood-brain barrier (BBB) disruption. We investigated the effects of mild hypothermia on neurologic outcome, survival rate, brain water content, BBB permeability and changes in tight junctions (TJs) and adherens junctions (AJs) after CA and CPR...
2017: PloS One
https://www.readbyqxmd.com/read/28283549/mild-hypothermia-preserves-myocardial-conduction-during-ischemia-by-maintaining-gap-junction-intracellular-communication-and-sodium-channel-function
#11
Michelle Mj Nassal, Xiaoping Wan, Zack Dale, Isabelle Deschenes, Lance D Wilson, Joseph Stephen Piktel
BACKGROUND: Acute cardiac ischemia induces conduction velocity (CV) slowing and conduction block, promoting reentrant arrhythmias leading to sudden cardiac arrest (SCA). Previously, we found that mild hypothermia (MH, 32°C) attenuates ischemia-induced conduction block and CV slowing in a canine model of early global ischemia. Acute ischemia impairs cellular excitability and the GJ protein connexin 43 (Cx43). We hypothesized that MH prevented ischemia-induced conduction block and CV slowing by preserving GJ expression and localization...
March 10, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28277601/the-international-hypothermia-registry-ihr-dieter-s-esao-winter-schools-and-beat-s-international-hypothermia-registry
#12
Beat H Walpoth, Marie Meyer, Christophe Gaudet-Blavignac, Philippe Baumann, Pierre Gilquin, Christian Lovis
Accidental hypothermia could be listed as an 'orphan disease,' since mild hypothermia is common but has no severe medical consequences, whereas severe hypothermia is rare and life-threatening. In order to increase our knowledge, find new outcome predictors, and propose better guidelines for the treatment of deep accidental hypothermia victims, we created the International Hypothermia Registry (IHR: https://www.hypothermia-registry.org), which will allow us to gather a large number of cases in order to achieve statistical significance and issue evidence-based recommendations...
March 7, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28271403/combination-treatment-with-methylene-blue-and-hypothermia-in-global-cerebral-ischemia
#13
Lei Li, Rongli Yang, Pingjing Li, Hailong Lu, Jingbo Hao, Liyan Li, Donovan Tucker, Quanguang Zhang
Therapeutic hypothermia (TH) is the most potent therapeutic strategy for global cerebral ischemia (GCI), usually induced by cardiac arrest. TH has been shown both to suppress the delayed neuronal cell death in the vulnerable hippocampal CA1 subregion and to improve neurological outcomes in experimental animals after GCI. However, given the multiple adverse effects resulting from TH, application of such a therapy is typically limited. In recent years, methylene blue (MB) has emerged as a potential therapeutic drug for the treatment of neurodegenerative diseases...
March 7, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28268879/optimal-control-of-inspired-perfluorocarbon-temperature-for-induction-of-hypothermia-by-total-liquid-ventilation-in-juvenile-lamb-model
#14
Mathieu Nadeau, Michael Sage, Jean-Paul Praud, Renaud Tissier, Herve Walti, Philippe Micheau
Mild hypothermia is well known for its therapeutic value in cardio- and neuroprotection. Many recent experimental studies have shown that the swiftness of the cooling offered by total liquid ventilation (TLV) holds great promise in achieving maximal therapeutic effect. TLV is an emerging ventilation technique in which the lungs are filled with breathable liquids, namely perfluorocarbons (PFCs). A liquid ventilator ensures subject ventilation by periodically renewing a volume of oxygenated, CO2-free and temperature-controlled breathable PFC...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28252535/effect-of-adipose-derived-mesenchymal-stem-cell-administration-and-mild-hypothermia-induction-on-delayed-neuronal-death-after-transient-global-cerebral-ischemia
#15
Tae Nyoung Chung, Jin Hee Kim, Bo Young Choi, Ju-Yeon Jeong, Sung Phil Chung, Sung Won Kwon, Sang Won Suh
OBJECTIVES: Global cerebral ischemia is a cause of poor prognosis after resuscitation from cardiac arrest. Various attempts have been made to minimize global cerebral ischemia but none been more effective than mild hypothermia induction. A few studies have shown the effect of mesenchymal stem cells on global cerebral ischemia, but no studies have compared this effect with mild hypothermia or assessed any possible interaction. We aimed to show the effect of mesenchymal stem cells on delayed neuronal death after global cerebral ischemia and to compare this effect with mild hypothermia...
May 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28242212/out-of-hospital-cardiac-arrest-and-stent-thrombosis-ticagrelor-versus-clopidogrel-in-patients-with-primary-percutaneous-coronary-intervention-under-mild-therapeutic-hypothermia
#16
Gustavo Jiménez-Brítez, Xavier Freixa, Eduardo Flores-Umanzor, Rodolfo San Antonio, Gala Caixal, John Garcia, Marco Hernandez-Enriquez, Rut Andrea, Ander Regueiro, Mónica Masotti, Salvatore Brugaletta, Victoria Martin, Manel Sabaté
BACKGROUND: Out-of-Hospital Cardiac Arrest (OHCA) and mild therapeutic hypothermia (MTH) have been linked to increased risk of Stent Thrombosis (ST) in comatose survivors who undergo percutaneous coronary intervention (PCI). In this sense, there is no formal recommendation about which antiplatelet regimen should be used in patients with acute coronary syndromes (ACS) after OHCA. AIMS: To compare the incidence of probable/definite ST and bleeding events between ticagrelor and clopidogrel, in patients with ACS under MTH after an OHCA...
February 24, 2017: Resuscitation
https://www.readbyqxmd.com/read/28237918/optimal-control-of-inspired-perfluorocarbon-temperature-for-ultrafast-hypothermia-induction-by-total-liquid-ventilation-in-adult-patient-model
#17
Mathieu Nadeau, Michael Sage, Matthias Kohlhauer, Julien Mousseau, Jonathan Vandamme, Etienne Fortin-Pellerin, Jean-Paul Praud, Renaud Tissier, Herve Walti, Philippe Micheau
OBJECTIVE: Recent preclinical studies have shown that therapeutic hypothermia induced in less than 30 min by total liquid ventilation (TLV) strongly improves the survival rate after cardiac arrest. When the lung is ventilated with a breathable perfluorocarbon liquid, the inspired perfluorocarbon allows to control efficiently the cooling process of the organs. While TLV can rapidly cool animals, the cooling speed in humans remains unknown. The objective is to predict the efficiency and safety of ultrafast cooling by TLV in adult humans...
February 20, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28228717/mild-hypothermia-attenuates-the-anesthetic-isoflurane-induced-cytotoxicity
#18
Cheng Li, Yuanlin Dong, Dan Chen, Zhongcong Xie, Yiying Zhang
The commonly used inhalation anesthetic isoflurane has been reported to induce DNA damage and cytotoxicity. However, the methods to attenuate these effects remain largely to be determined. Mild hypothermia has neuroprotective effects. We therefore set out to assess whether mild hypothermia could protect the isoflurane-induced DNA damage and cytotoxicity. Moreover, we investigated the underlying mechanisms by assessing the effects of mild hypothermia on the isoflurane-induced changes in ATP levels. H4 human neuroglioma cells were treated with 2% isoflurane for 3 or 6 h with and without mild hypothermia (35°C)...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28227077/optimal-control-of-inspired-perfluorocarbon-temperature-for-induction-of-hypothermia-by-total-liquid-ventilation-in-juvenile-lamb-model
#19
Mathieu Nadeau, Michael Sage, Jean-Paul Praud, Renaud Tissier, Herve Walti, Philippe Micheau, Mathieu Nadeau, Michael Sage, Jean-Paul Praud, Renaud Tissier, Herve Walti, Philippe Micheau, Michael Sage, Philippe Micheau, Jean-Paul Praud, Mathieu Nadeau, Herve Walti, Renaud Tissier
Mild hypothermia is well known for its therapeutic value in cardio- and neuroprotection. Many recent experimental studies have shown that the swiftness of the cooling offered by total liquid ventilation (TLV) holds great promise in achieving maximal therapeutic effect. TLV is an emerging ventilation technique in which the lungs are filled with breathable liquids, namely perfluorocarbons (PFCs). A liquid ventilator ensures subject ventilation by periodically renewing a volume of oxygenated, CO2-free and temperature-controlled breathable PFC...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28220713/the-influence-of-targeted-temperature-management-on-the-pharmacokinetics-of-drugs-administered-during-and-after-cardiac-arrest-a-systematic-review
#20
Tessa Crombez, Said Hachimi-Idrissi
OBJECTIVE: Pharmacokinetic parameters of drugs are widely investigated under normothermic conditions and normal hemodynamic parameters. The European Resuscitation Council recommends the use of targeted temperature management (TTM) with a target temperature of 34 °C in cardiac arrest (CA) patients. The aim of this literature review is to investigate the influence of CA combined with TTM on the pharmacokinetics of drugs. Results of preclinical and clinical studies are compared with each other...
April 2017: Acta Clinica Belgica
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