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Normothermia

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https://www.readbyqxmd.com/read/28099429/vitamin-d-insufficiency-in-neonatal-hypoxic-ischemic-encephalopathy
#1
Danielle W Lowe, Bruce W Hollis, Carol L Wagner, Thomas Bass, David A Kaufman, Michael J Horgan, Laurence M Givelichian, Koravangatta Sankaran, Jerome Y Yager, Lakshmi D Katikaneni, Don Wiest, Dorothea Jenkins
BACKGROUND: Vitamin D has neuroprotective and immunomodulatory properties, and deficiency is associated with worse stroke outcomes. Little is known about effects of hypoxia-ischemia or hypothermia treatment on vitamin D status in neonates with hypoxic-ischemic encephalopathy (HIE). We hypothesized vitamin D metabolism would be dysregulated in neonatal HIE altering specific cytokines involved in Th17 activation, which might be mitigated by hypothermia. METHODS: We analyzed short term relationships between 25(OH) and 1,25(OH)2 vitamin D, vitamin D binding protein, and cytokines related to Th17 function in serum samples from a multicenter randomized controlled trial of hypothermia 33(0)C for 48h after HIE birth versus normothermia in 50 infants with moderate to severe HIE...
January 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28092317/ideal-site-for-skin-temperature-probe-placement-on-infants-in-the-nicu-a-review-of-literature
#2
Rachel A Joseph, Sarah Derstine, Michaela Killian
BACKGROUND: Maintaining normothermia and prevention of hypothermia are critical determinants of morbidity and mortality in infants. Noninvasive monitoring of skin temperature using skin temperature probes (STPs) has been a practice in neonatal intensive care units (NICUs) for decades. Incubators and radiant warmers use feedback mechanisms from the STP readings to determine the heat output to maintain normothermia. Placing the STP on an ideal site on the infant's body is essential for optimum servo control of the temperature...
January 12, 2017: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
https://www.readbyqxmd.com/read/28091756/-recommendation-on-temperature-management-after-cardiopulmonary-arrest-and-severe-traumatic-brain-injury-in-childhood-beyond-the-neonatal-period-statement-of-the-german-society-for-neonatology-and-pediatric-intensive-care-medicine%C3%A2-gnpi-and-the-scientific-working
#3
S Brenner, C Eich, G Rellensmann, M U Schuhmann, T Nicolai, F Hoffmann
The available data on the effectiveness of therapeutic hypothermia in different patient groups are heterogeneous. Although the benefits have been proven for some collectives, recommendations for the use of hypothermia treatment in other groups are based on less robust data and conclusions by analogy. This article gives a review of the current evidence of temperature management in all age groups and based on this state of knowledge, recommends active temperature management with the primary aim of strict normothermia (36-36...
January 13, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28079874/cerebral-modulation-of-the-autonomic-nervous-system-in-term-infants
#4
N Schneebaum Sender, R B Govindan, M T Whitehead, A N Massaro, M Metzler, J Wang, Y I Cheng, A J du Plessis
OBJECTIVE: Central topography of autonomic nervous system (ANS) function has yet to be fully deciphered. In adults it has been shown to lateralize sympathetic and parasympathetic influence predominantly to the right and left cerebral hemispheres, respectively. We examined functional topography of central ANS in newborn subjects utilizing spectral analysis of heart rate variability (HRV), an established measure of ANS function. STUDY DESIGN: We studied newborns with hypoxic-ischemic encephalopathy participating in a prospective study undergoing a therapeutic hypothermia protocol...
January 12, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28070632/-prevention-of-perioperative-hypothermia-implementation-of-the-s3-guideline
#5
E-P Horn, E Klar, J Höcker, A Bräuer, B Bein, H Wulf, A Torossian
To improve perioperative quality and patient safety, the German S3 guideline should be consistently implemented to avoid perioperative hypothermia. Perioperative normothermia is a quality indicator and should be achieved by anesthesiologists and surgeons. To detect hypothermia early during the perioperative process, measuring body temperature should be started 1-2 h preoperatively. Patients should be actively warmed for 20-30 min before starting anesthesia. Prewarming is most effective and should be included in the preoperative process...
January 9, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28065673/spectral-analysis-of-reflex-cutaneous-vasodilatation-during-passive-heat-stress
#6
Matthew M Mallette, Gary J Hodges, Gregory W McGarr, David A Gabriel, Stephen S Cheung
Previous work has demonstrated that spectral analysis is a useful tool to non-invasively ascertain the mechanisms of control of the cutaneous circulation. The majority of work using spectral analysis has focused on local control mechanisms, with none examining reflex control. Skin blood flow was analysed using spectral analysis on the dorsal aspect of the forearm of 7 males and 7 females during passive heat stress, with mean forearm and local temperature at the site of measurement maintained at thermoneutral (33°C) to minimize the effect of local control mechanisms...
January 5, 2017: Microvascular Research
https://www.readbyqxmd.com/read/27998781/tfp5-is-comparable-to-mild-hypothermia-in-improving-neurological-outcomes-in-early-stage-ischemic-stroke-of-adult-rats
#7
Ya-Bin Ji, Pei-Pei Zhuang, Zhong Ji, Kai-Bin Huang, Yong Gu, Yong-Ming Wu, Su-Yue Pan, Ya-Fang Hu
AIM: We compared the efficacy of a modified truncated 24-aa peptide (TFP5), derived from the cyclin-dependent kinase 5 (CDK5)-activating cofactor p35, with mild hypothermia (MH), and determined whether the efficacy of TFP5 is affected by MH. METHODS: Ischemic stroke was induced in adult male Sprague-Dawley rats for 2h. Immediately after initiating reperfusion, TFP5, MH, or the combination of the two were administrated. 48h after reperfusion, neurological outcomes were evaluated...
December 18, 2016: Neuroscience
https://www.readbyqxmd.com/read/27976517/warmed-humidified-co2-insufflation-benefits-intraoperative-core-temperature-during-laparoscopic-surgery-a-meta-analysis
#8
Meara Dean, Robert Ramsay, Alexander Heriot, John Mackay, Richard Hiscock, A Craig Lynch
BACKGROUND: Intraoperative hypothermia is linked to postoperative adverse events. The use of warmed, humidified CO2 to establish pneumoperitoneum during laparoscopy has been associated with reduced incidence of intraoperative hypothermia. However, the small number and variable quality of published studies have caused uncertainty about the potential benefit of this therapy. This meta-analysis was conducted to specifically evaluate the effects of warmed, humidified CO2 during laparoscopy...
December 14, 2016: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/27960070/comparison-of-two-surface-cooling-devices-for-temperature-management-in-a-neurocritical-care-unit
#9
Gurpreet Singh Aujla, Premkumar Nattanmai, Keerthivaas Premkumar, Christopher R Newey
Fever increases mortality and morbidity and length of stay in neurocritically ill patients. Various methods are used in the neuroscience intensive care unit (NSICU) to control fever. Two such methods involve the Arctic Sun hydrogel wraps and the Gaymar cooling wraps. The purpose of our study was to compare these two methods in neurocritical care patients who had temperature >37.5°C for more than three consecutive hours and that was refractory to standard treatments. Data of patients requiring cooling wraps for treatment of hyperthermia at an NSICU at an academic, tertiary referral center were retrospectively reviewed...
December 13, 2016: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/27935333/cost-utility-analysis-of-the-insufflation-of-warmed-humidified-carbon-dioxide-during-open-and-laparoscopic-colorectal-surgery
#10
Michelle Jenks, Matthew Taylor, Judith Shore
BACKGROUND: An evaluation was conducted to estimate the cost-effectiveness of insufflation of warmed humidified CO2 during open and laparoscopic colorectal surgery compared with usual care from a UK NHS perspective. METHODS: Decision analytic models were developed for open and laparoscopic surgery. Incremental costs per quality-adjusted life year (QALY) were estimated. The open surgery model used data on the incidence of intra-operative hypothermia and applied risks of complications for hypothermia and normothermia...
December 26, 2016: Expert Review of Pharmacoeconomics & Outcomes Research
https://www.readbyqxmd.com/read/27923323/mild-hypothermia-promotes-pericontusion-neuronal-sprouting-via-suppressing-suppressor-of-cytokine-signaling-3-expression-after-moderate-traumatic-brain-injury
#11
Cheng-Cheng Zhao, Chuan-Fang Wang, Wei-Ping Li, Yong Lin, Qi-Lin Tang, Jun-Feng Feng, Qing Mao, Guo-Yi Gao, Ji-Yao Jiang
Mild therapeutic hypothermia is a candidate for the treatment of traumatic brain injury (TBI). However, the role of mild hypothermia in neuronal sprouting after TBI remains obscure. We used a fluid percussion injury (FPI) model to assess the effect of mild hypothermia on pericontusion neuronal sprouting after TBI in rats. Male Sprague-Dawley rats underwent FPI or sham surgery, followed by mild hypothermia treatment (33°C) or normothermia treatment (37°C) for 3 h. All the rats were euthanized at 7 days after FPI...
January 13, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27919274/altered-pharmacological-effects-of-adrenergic-agonists-during-hypothermia
#12
REVIEW
Erik Sveberg Dietrichs, Georg Sager, Torkjel Tveita
Rewarming from accidental hypothermia is often complicated by hypothermia-induced cardiac dysfunction, calling for immediate pharmacologic intervention. Studies show that although cardiac pharmacologic support is applied when rewarming these patients, a lack of updated treatment recommendations exist. Mainly due to lack of clinical and experimental data, neither of the international guidelines includes information about pharmacologic cardiac support at temperatures below 30 °C. However, core temperature of accidental hypothermia patients is often reduced below 30 °C...
December 5, 2016: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/27917566/perioperative-hypothermia-in-neonatal-intensive-care-unit-patients-effectiveness-of-a-thermoregulation-intervention-and-associated-risk-factors
#13
Branden M Engorn, Stephanie L Kahntroff, Karen M Frank, Sarabdeep Singh, Helen A Harvey, Charles T Barkulis, Annika M Barnett, Olamide O Olambiwonnu, Eugenie S Heitmiller, Robert S Greenberg
BACKGROUND: Hypothermia in neonatal intensive care unit patients is associated with morbidity. Perioperative normothermia is the standard of care. AIMS: We hypothesized that a quality improvement intervention (transport protocol, transport education, ongoing monitoring) would decrease the incidence of perioperative hypothermia. Secondarily, we hypothesized that patients undergoing surgery at a postmenstrual age of <37 weeks or at a weight of <1.5 kg would be at higher risk for perioperative hypothermia...
December 5, 2016: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/27917359/protective-roles-of-intra-arterial-mild-hypothermia-and-arterial-thrombolysis-in-acute-cerebral-infarction
#14
Xiaoxiang Peng, Yue Wan, Wenjun Liu, Bitang Dan, Li Lin, Zhouping Tang
OBJECTIVE: Herein, we evaluated the efficacy and safety of intra-arterial mild hypothermia in combination with arterial thrombolysis to treat acute cerebral infarction due to middle cerebral artery occlusion. METHODS: A total of 26 patients with acute middle cerebral artery occlusion were divided into a normothermia group (n = 15) and a mild hypothermia group (n = 11). The infarct volumes at 24 h and 7 days after the operation were compared between the normothermia group and the mild hypothermia group...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27906602/meta-analysis-of-pre-clinical-trials-of-therapeutic-hypothermia-for-intracerebral-hemorrhage
#15
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
#16
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
#17
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...
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
#18
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
#19
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
#20
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
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