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https://www.readbyqxmd.com/read/27906602/meta-analysis-of-pre-clinical-trials-of-therapeutic-hypothermia-for-intracerebral-hemorrhage
#1
Kara R Melmed, Patrick D Lyden
Therapeutic hypothermia (TH) is a potent neuroprotectant for experimental ischemic stroke, but studies of TH for intracerebral hemorrhage (ICH) are emerging. We systematically reviewed the experimental literature to assess TH efficacy for ICH. We found 18 suitable papers; quality scores were moderately good. Compared with normothermia, TH reduced measures of edema (mean effect size (95% CI) -1.6873 (-2.3640, -1.0106), p < 0.0001) or blood-brain barrier leakage (p < 0.0001) and improved behavioral outcomes (p < 0...
December 1, 2016: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/27899766/examining-potential-side-effects-of-therapeutic-hypothermia-in-experimental-intracerebral-hemorrhage
#2
Shannon Wowk, Kelly J Fagan, Yonglie Ma, Helen Nichol, Frederick Colbourne
Studies treating intracerebral hemorrhage (ICH) with therapeutic hypothermia (TH) have shown inconsistent benefits. We hypothesized that TH's anti-inflammatory effects may be responsible as inflammatory cells are essential for removing degrading erythrocytes. Here, we subjected rats to a collagenase-induced striatal ICH followed by whole-body TH (∼33℃ for 11-72 h) or normothermia. We used X-ray fluorescence imaging to spatially quantify total and peri-hematoma iron three days post-injury. At three and seven days, we measured non-heme iron levels...
November 29, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/27875631/intravenous-nutrients-for-preventing-inadvertent-perioperative-hypothermia-in-adults
#3
REVIEW
Sheryl Warttig, Phil Alderson, Sharon R Lewis, Andrew F Smith
BACKGROUND: Inadvertent perioperative hypothermia (a drop in core temperature to below 36°C) occurs because normal temperature regulation is disrupted during surgery, mainly because of the effects of anaesthetic drugs and exposure of the skin for prolonged periods. Many different ways of maintaining body temperature have been proposed, one of which involves administration of intravenous nutrients during the perioperative period that may reduce heat loss by increasing metabolism, thereby increasing heat production...
November 22, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27869210/delivery-room-quality-improvement-project-improved-compliance-with-best-practices-for-a-community-nicu
#4
Charles W Sauer, Mallory A Boutin, Aayah N Fatayerji, James A Proudfoot, Nabil I Fatayerji, David J Golembeski
A Quality Improvement bundle was implemented with the goal of standardizing the multidisciplinary approach to delivery room management. We used a Pre-Post Quality Improvement initiative with the following aims: (1) Placement of a functioning pulse oximeter by two minutes after birth, (2) Delayed intubation, (3) Normothermia on Neonatal Intensive Care Unit Admission, (4) Use of a pre-brief, debrief, and delivery room checklist. Data was collected for 548 infants, which represents every admission to the Palomar Rady Children's Hospital Neonatal Intensive Care Unit during the 35 month study period from January 1, 2010 to November 30, 2012...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27864465/posttraumatic-therapeutic-hypothermia-alters-microglial-and-macrophage-polarization-toward-a-beneficial-phenotype
#5
Jessie S Truettner, Helen M Bramlett, W Dalton Dietrich
Posttraumatic inflammatory processes contribute to pathological and reparative processes observed after traumatic brain injury (TBI). Recent findings have emphasized that these divergent effects result from subsets of proinflammatory (M1) or anti-inflammatory (M2) microglia and macrophages. Therapeutic hypothermia has been tested in preclinical and clinical models of TBI to limit secondary injury mechanisms including proinflammatory processes. This study evaluated the effects of posttraumatic hypothermia (PTH) on phenotype patterns of microglia/macrophages...
November 18, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/27863557/in-vitro-assessment-of-the-effects-of-temperature-on-phagocytosis-reactive-oxygen-species-production-and-apoptosis-in-bovine-polymorphonuclear-cells
#6
Cristina Lecchi, Nicola Rota, Andrea Vitali, Fabrizio Ceciliani, Nicola Lacetera
Heat stress exerts a direct negative effect on farm animal health, triggering physiological responses. Environmental high temperature induces immunosuppression in dairy cows, increasing the risk of mastitis and milk somatic cell counts. The influence of heat stress on leukocytes activities has not been fully elucidated. The present in vitro study was aimed at assessing whether the exposure to temperature simulating conditions of severe whole body hyperthermia affects defensive functions of bovine blood polymorphonuclear cells...
December 2016: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/27857908/therapeutic-hypothermia-for-increased-intracranial-pressure-after-decompressive-craniectomy-a-single-center-experience
#7
Hyun Taek Rim, Jun Hyong Ahn, Ji Hee Kim, Jae Keun Oh, Joon Ho Song, In Bok Chang
OBJECTIVE: Therapeutic hypothermia (TH) and decompressive craniectomy are neuroprotective interventions following severe brain swelling. The precise benefits, risks, and clinical outcomes in brain swelling after TH are still being investigated. We aimed to investigate the effects of TH in severe brain injury after decompressive craniectomy. METHODS: We reviewed the cases of 24 patients who underwent decompressive craniectomy with intracranial pressure (ICP) monitor insertion in one medical center between January 2012 and May 2016...
October 2016: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/27847808/the-role-of-targeted-temperature-management-in-adult-patients-resuscitated-from-nonshockable-cardiac-arrests-an-updated-systematic-review-and-meta-analysis
#8
REVIEW
Lijuan Song, Liang Wei, Lei Zhang, Yubao Lu, Kaifa Wang, Yongqin Li
Routine targeted temperature management is recommended for comatose adult patients with return of spontaneous circulation after cardiac arrest. However, the role of targeted temperature management in patients resuscitated from nonshockable cardiac arrests remains uncertain. We conducted an updated systematic review and meta-analysis to evaluate the effects of targeted temperature management in this population. Medline, EMBASE, and Cochrane databases were systematically reviewed for studies published between January 2005 and March 2016, in which targeted temperature management was compared with standard care or normothermia for adult patients resuscitated from nonshockable cardiac arrests...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27834742/results-of-the-ictus-2-trial-intravascular-cooling-in-the-treatment-of-stroke-2
#9
Patrick Lyden, Thomas Hemmen, James Grotta, Karen Rapp, Karin Ernstrom, Teresa Rzesiewicz, Stephanie Parker, Mauricio Concha, Syed Hussain, Sachin Agarwal, Brett Meyer, Julie Jurf, Irfan Altafullah, Rema Raman
BACKGROUND AND PURPOSE: Therapeutic hypothermia is a potent neuroprotectant approved for cerebral protection after neonatal hypoxia-ischemia and cardiac arrest. Therapeutic hypothermia for acute ischemic stroke is safe and feasible in pilot trials. We designed a study protocol to provide safer, faster therapeutic hypothermia in stroke patients. METHODS: Safety procedures and 4°C saline infusions for faster cooling were added to the ICTuS trial (Intravascular Cooling in the Treatment of Stroke) protocol...
December 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27833158/the-role-of-posttraumatic-hypothermia-in-preventing-dendrite-degeneration-and-spine-loss-after-severe-traumatic-brain-injury
#10
Chuan-Fang Wang, Cheng-Cheng Zhao, Gan Jiang, Xiao Gu, Jun-Feng Feng, Ji-Yao Jiang
Posttraumatic hypothermia prevents cell death and promotes functional outcomes after traumatic brain injury (TBI). However, little is known regarding the effect of hypothermia on dendrite degeneration and spine loss after severe TBI. In the present study, we used thy1-GFP transgenic mice to investigate the effect of hypothermia on the dendrites and spines in layer V/VI of the ipsilateral cortex after severe TBI. We found that hypothermia (33 °C) dramatically prevented dendrite degeneration and spine loss 1 and 7 days after CCI...
November 11, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27809409/24-hour-normothermic-machine-perfusion-of-discarded-human-liver-grafts
#11
Thomas Vogel, Jens G Brockmann, Alberto Quaglia, Alireza Morovat, Wayel Jassem, Nigel D Heaton, Constantin C Coussios, Peter J Friend
Background Donor organ shortage necessitates use of less than optimal donor allografts for transplantation. Current cold storage preservation technique fails to preserve marginal donor grafts sufficiently. Evidence from large animal experiments suggests superiority of normothermic machine preservation (NMP) of liver allografts. In this study, we analyse discarded human liver grafts that underwent NMP for the extended period of 24 hours. Methods Thirteen human liver grafts which had been discarded for transplantation, were entered into this study...
November 3, 2016: Liver Transplantation
https://www.readbyqxmd.com/read/27800122/subnormothermic-perfusion-in-the-isolated-rat-liver-preserves-the-antioxidant-glutathione-and-enhances-the-function-of-the-ubiquitin-proteasome-system
#12
Teresa Carbonell, Norma Alva, Sergio Sanchez-Nuño, Shannamar Dewey, Aldrin V Gomes
The reduction of oxidative stress is suggested to be one of the main mechanisms to explain the benefits of subnormothermic perfusion against ischemic liver damage. In this study we investigated the early cellular mechanisms induced in isolated rat livers after 15 min perfusion at temperatures ranging from normothermia (37°C) to subnormothermia (26°C and 22°C). Subnormothermic perfusion was found to maintain hepatic viability. Perfusion at 22°C raised reduced glutathione levels and the activity of glutathione reductase; however, lipid and protein oxidation still occurred as determined by malondialdehyde, 4-hydroxynonenal-protein adducts, and advanced oxidation protein products...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27793638/tau-hyperphosphorylation-in-the-brain-of-ob-ob-mice-is-due-to-hypothermia-importance-of-thermoregulation-in-linking-diabetes-and-alzheimer-s-disease
#13
Maud Gratuze, Noura B El Khoury, Andréanne Turgeon, Carl Julien, François Marcouiller, Françoise Morin, Robert A Whittington, André Marette, Frédéric Calon, Emmanuel Planel
Over the last few decades, there has been a significant increase in epidemiological studies suggesting that type 2 diabetes (T2DM) is linked to a higher risk of Alzheimer's disease (AD). However, how T2DM affects AD pathology, such as tau hyperphosphorylation, is not well understood. In this study, we investigated the impact of T2DM on tau phosphorylation in ob/ob mice, a spontaneous genetic model of T2DM. Tau phosphorylation at the AT8 epitope was slightly elevated in 4-week-old ob/ob mice while 26-week-old ob/ob mice exhibited tau hyperphosphorylation at multiple tau phospho-epitopes (Tau1, CP13, AT8, AT180, PHF1)...
October 26, 2016: Neurobiology of Disease
https://www.readbyqxmd.com/read/27786541/postexercise-cold-water-immersion-improves-intermittent-high-intensity-exercise-performance-in-normothermia
#14
Avina McCarthy, James Mulligan, Mikel Egaña
A brief cold water immersion between 2 continuous high-intensity exercise bouts improves the performance of the latter compared with passive recovery in the heat. We investigated if this effect is apparent in normothermic conditions (∼19 °C), employing an intermittent high-intensity exercise designed to reflect the work performed at the high-intensity domain in team sports. Fifteen young active men completed 2 exhaustive cycling protocols (Ex1 and Ex2: 12 min at 85% ventilatory threshold (VT) and then an intermittent exercise alternating 30-s at 40% peak power (Ppeak) and 30 s at 90% Ppeak to exhaustion) separated by 15 min of (i) passive rest, (ii) 5-min cold-water immersion at 8 °C, and (iii) 10-min cold-water immersion at 8 °C...
July 25, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27783839/intraoperative-hypothermia-in-total-hip-and-knee-arthroplasty
#15
Nicholas B Frisch, Andrew M Pepper, Edward Rooney, Craig Silverton
Total hip arthroplasty (THA) and total knee arthroplasty (TKA) are common and successful orthopedic procedures, and as their frequency continues to increase substantially, the focus on limiting perioperative complications heightens. Intraoperative normothermia is recommended to minimize additional complications, but limited evidence exists regarding the effect of hypothermia on orthopedic patients. The purpose of this retrospective study was to determine the incidence of perioperative hypothermia in the setting of TKA and THA, and to evaluate its impact on complications and outcomes...
October 25, 2016: Orthopedics
https://www.readbyqxmd.com/read/27777585/time-trends-and-predictors-of-abnormal-postoperative-body-temperature-in-infants-transported-to-the-intensive-care-unit
#16
Hedwig Schroeck, Angela K Lyden, Wendy L Benedict, Satya Krishna Ramachandran
Background. Despite increasing adoption of active warming methods over the recent years, little is known about the effectiveness of these interventions on the occurrence of abnormal postoperative temperatures in sick infants. Methods. Preoperative and postoperative temperature readings, patient characteristics, and procedural factors of critically ill infants at a single institution were retrieved retrospectively from June 2006 until May 2014. The primary endpoints were the incidence and trend of postoperative hypothermia and hyperthermia on arrival at the intensive care units...
2016: Anesthesiology Research and Practice
https://www.readbyqxmd.com/read/27760282/heated-insufflation-with-or-without-humidification-for-laparoscopic-abdominal-surgery
#17
REVIEW
Daniel W Birch, Jerry T Dang, Noah J Switzer, Namdar Manouchehri, Xinzhe Shi, Ghassan Hadi, Shahzeer Karmali
BACKGROUND: Intraoperative hypothermia during both open and laparoscopic abdominal surgery may be associated with adverse events. For laparoscopic abdominal surgery, the use of heated insufflation systems for establishing pneumoperitoneum has been described to prevent hypothermia. Humidification of the insufflated gas is also possible. Past studies on heated insufflation have shown inconclusive results with regards to maintenance of core temperature and reduction of postoperative pain and recovery times...
October 19, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27749583/maximizing-kidneys-for-transplantation-using-machine-perfusion-from-the-past-to-the-future-a-comprehensive-systematic-review-and-meta-analysis
#18
Ahmer M Hameed, Henry C Pleass, Germaine Wong, Wayne J Hawthorne
BACKGROUND: The two main options for renal allograft preservation are static cold storage (CS) and machine perfusion (MP). There has been considerably increased interest in MP preservation of kidneys, however conflicting evidence regarding its efficacy and associated costs have impacted its scale of clinical uptake. Additionally, there is no clear consensus regarding oxygenation, and hypo- or normothermia, in conjunction with MP, and its mechanisms of action are also debated. The primary aims of this article were to elucidate the benefits of MP preservation with and without oxygenation, and/or under normothermic conditions, when compared with CS prior to deceased donor kidney transplantation...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27737872/dalteparin-sodium-induced-drug-fever-in-a-neonate
#19
Dirk Wackernagel, Sami Obaya, Per Nydert
Drug fever caused by dalteparin-sodium (DS), a low-molecular-weight derivative of heparin, is neither listed in the official drug information and nor published as a case report until today. A preterm infant, born at 26 weeks of gestation, developed fever 2 days after starting a treatment with DS for an intracardial thrombus. The fever reverses soon after changing the treatment to unfractionated heparin and reappeared after reintroduction of DS. Once again, after discontinuing DS, the infant regained normothermia...
October 13, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27737774/exploring-the-safety-and-efficacy-of-targeted-temperature-management-amongst-infants-with-out-of-hospital-cardiac-arrest-due-to-apparent-life-threatening-events
#20
Kathleen Meert, Russell Telford, Richard Holubkov, Beth S Slomine, James R Christensen, J Michael Dean, Frank W Moler
OBJECTIVE: To explore the safety and efficacy of targeted temperature management amongst infants with out-of-hospital cardiac arrest due to an apparent life threatening event (ALTE) recruited to the Therapeutic Hypothermia after Paediatric Cardiac Arrest Out-of-Hospital trial. METHODS: Fifty-four infants (48h to <1year of age) with ALTE who received chest compressions for ≥2min, were comatose, and required mechanical ventilation after return of circulation were included...
December 2016: Resuscitation
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