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Fluid Warming

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https://www.readbyqxmd.com/read/28803343/sediment-lipid-biomarkers-record-phytoplankton-dynamics-of-lake-heihai-yunnan-province-sw-china-driven-by-climate-warming-since-the-1980s
#1
Yongdong Zhang, Yaling Su, Zhengwen Liu, Jinlei Yu, Miao Jin
Increased phosphorus (P) export from sediments to the overlying water column is a significant factor driving the variation of phytoplankton in productivity and community structure in lakes. However, the lack of long-term instrumental data often impeded analyses attempting to associate dynamics of phytoplankton with variation of internal P loading. Here, elements and lipid biomarkers were analyzed in a sediment core from Lake Heihai, a small, deep, and ultraoligotrophic alpine lake in Haba Mountain, Yunnan Province, SW China...
August 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28801142/synergistic-experimental-and-numerical-characterization-of-a-dry-heat-fluid-warming-device
#2
Winston Tan, Eph M Sparrow, John M Gorman, Jungwon Ahn
Fluids that are infused into the human body must be at a temperature that is compatible with the internal thermal state of the body. Since infusants are typically stored at temperatures that are too low for compatibility, a heating means is required to achieve the appropriate infusion temperature. This paper sets forth a synergistic investigation involving coupled experimentation and numerical simulation of the characteristics of one of the main categories of body-fluid heating means. The methodology developed here serves equally well as a design optimization tool...
August 8, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28794842/mega-acer-kit%C3%A2-is-more-effective-for-warming-the-intravenous-fluid-than-ranger%C3%A2-and-thermosens%C3%A2-at-440-ml-h-of-infusion-rate-an-experimental-performance-study
#3
Dong Joon Kim, Sang Hun Kim, Keum Young So, Tae Hun An
BACKGROUND: Few studies have investigated the effectiveness of intravenous fluid warmers at low and moderate flow rates below 1,000 ml/h. In this study, we compared the effectiveness of three different fluid warmers at a low flow rate (440 ml/h). METHODS: We experimentally investigated the fluid warming performances of Mega Acer Kit® (Group M, n = 10), Ranger™ (Group R, n = 10), and ThermoSens® (Group T, n = 10) at 440 ml/h for 60 min. All devices were set at a warming temperature of 41℃ with preheating for 10 min...
August 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28791559/laparoscopic-lens-fogging-solving-a-common-surgical-problem-in-standard-and-robotic-laparoscopes-via-a-scientific-model
#4
Todd G Manning, Nathan Papa, Marlon Perera, Shannon McGrath, Daniel Christidis, Munad Khan, Richard O'Beirne, Nicholas Campbell, Damien Bolton, Nathan Lawrentschuk
BACKGROUND: Laparoscopic lens fogging (LLF) hampers vision and impedes operative efficiency. Attempts to reduce LLF have led to the development of various anti-fogging fluids and warming devices. Limited literature exists directly comparing these techniques. We constructed a model peritoneum to simulate LLF and to compare the efficacy of various anti-fogging techniques. MATERIALS AND METHODS: Intraperitoneal space was simulated using a suction bag suspended within an 8 L container of water...
August 8, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28762448/comparison-of-warm-fluid-and-cold-fluid-resuscitation-during-uncontrolled-hemorrhagic-shock-model-in-rats
#5
Serkan Dilmen, Mehmet Eryılmaz, Salih Müjdat Balkan, Muhittin Serdar, Murat Durusu, Ali Osman Yıldırım, Sanem Aslıhan Dilmen
BACKGROUND: This study was designed to compare the effects of resuscitation with cold and warm fluid on survival time, rate and volume of hemorrhage, hemodynamics, hypothermia, coagulopathy, acid-base balance, hematocrit, lactate, and base deficit during uncontrolled hemorrhagic shock (HS) model in rats. METHODS: HS model was created with splenic vascular and parenchymal injury in 29 rats under ketamine and xylazine anesthesia. Thirty minutes after the hemorrhage, the rats were randomized to receive 14...
July 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28741744/thermal-suit-in-preventing-unintentional-intraoperative-hypothermia-during-general-anaesthesia-a-randomized-controlled-trial
#6
S-L Lauronen, M-L Kalliomäki, A J Aho, J Kalliovalkama, J M Riikonen, M-T Mäkinen, H M Leppikangas, A M Yli-Hankala
BACKGROUND: Unintentional perioperative hypothermia causes serious adverse effects to surgical patients. Thermal suit (T-Balance(®) ) is an option for passive warming perioperatively. We hypothesized that the thermal suit will not maintain normothermia more efficiently than conventional cotton clothes when also other preventive procedures against unintentional hypothermia are used. METHODS: One hundred patients were recruited to this prospective, randomized trial...
July 25, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28659879/co-registered-geochemistry-and-metatranscriptomics-reveal-unexpected-distributions-of-microbial-activity-within-a-hydrothermal-vent-field
#7
Heather C Olins, Daniel R Rogers, Christina Preston, William Ussler, Douglas Pargett, Scott Jensen, Brent Roman, James M Birch, Christopher A Scholin, M Fauzi Haroon, Peter R Girguis
Despite years of research into microbial activity at diffuse flow hydrothermal vents, the extent of microbial niche diversity in these settings is not known. To better understand the relationship between microbial activity and the associated physical and geochemical conditions, we obtained co-registered metatranscriptomic and geochemical data from a variety of different fluid regimes within the ASHES vent field on the Juan de Fuca Ridge. Microbial activity in the majority of the cool and warm fluids sampled was dominated by a population of Gammaproteobacteria (likely sulfur oxidizers) that appear to thrive in a variety of chemically distinct fluids...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28639291/perfusion-of-isolated-rat-kidney-with-mesenchymal-stromal-cells-extracellular-vesicles-prevents-ischaemic-injury
#8
Marilena Gregorini, Valeria Corradetti, Eleonora Francesca Pattonieri, Chiara Rocca, Samantha Milanesi, Andrea Peloso, Silvana Canevari, Loris De Cecco, Matteo Dugo, Maria Antonietta Avanzini, Melissa Mantelli, Marcello Maestri, Pasquale Esposito, Stefania Bruno, Carmelo Libetta, Antonio Dal Canton, Teresa Rampino
Kidney donation after circulatory death (DCD) is a less than ideal option to meet organ shortages. Hypothermic machine perfusion (HMP) with Belzer solution (BS) improves the viability of DCD kidneys, although the graft clinical course remains critical. Mesenchymal stromal cells (MSC) promote tissue repair by releasing extracellular vesicles (EV). We evaluated whether delivering MSC-/MSC-derived EV during HMP protects rat DCD kidneys from ischaemic injury and investigated the underlying pathogenic mechanisms...
June 21, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28629957/chemical-hand-warmer-packet-ingestion-a-case-of-elemental-iron-exposure
#9
Jessica L Weiland, Leighanne K Sherrow, Deepak A Jayant, Kenneth D Katz
For individuals who work outdoors in the winter or play winter sports, chemical hand warmers are becoming increasingly more commonplace because of their convenience and effectiveness. A 32-year-old woman with a history of chronic pain and bipolar disorder presented to the emergency department complaining of a "warm sensation" in her mouth and epigastrium after reportedly ingesting the partial contents of a chemical hand warmer packet containing between 5 and 8 g of elemental iron. She had been complaining of abdominal pain for approximately 1 month and was prescribed unknown antibiotics the previous day...
June 16, 2017: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/28620807/predictive-factors-of-maternal-hypothermia-during-cesarean-delivery-a-prospective-cohort-study
#10
François-Pierrick Desgranges, Lionel Bapteste, Céline Riffard, Marius Pop, Bérengère Cogniat, Anne-Charlotte Gagey, Pierre Boucher, Corinne Bonnard, Brigitte Paturel, Christine Mullet, Dominique Chassard, Lionel Bouvet
PURPOSE: Although perioperative hypothermia may increase maternal morbidity, active warming is infrequently performed to maintain normothermia during Cesarean delivery (CD). The aim of this prospective observational study was to determine the factors associated with maternal hypothermia in this setting. METHODS: Women scheduled for elective or emergency CD were consecutively included in this study from November 2014 to October 2015. Maternal temperature was measured using an infrared tympanic thermometer on the patient's arrival in the operating room, at skin incision, and at the end of skin suture...
June 15, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/28618920/castor-oil-for-induction-of-labour-a-retrospective-study
#11
Isabella Neri, Giulia Dante, Lucrezia Pignatti, Chiara Salvioli, Fabio Facchinetti
PURPOSE: The aim of this study is to investigate the safety and efficacy of castor oil to induce labour. MATERIALS AND METHODS: A retrospective observational case control study was conducted over five years. Castor oil was proposed to women referred to the Birth Centre (Castor Oil group (COG)). They were compared to women who chose to be followed by the traditional doctor-led unit (control group (CG)). Castor oil was administered in a 60 ml single dose in 200 ml of warm water...
June 15, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28607573/effects-of-radix-astragali-and-its-split-components-on-gene-expression-profiles-related-to-water-metabolism-in-rats-with-the-dampness-stagnancy-due-to-spleen-deficiency-syndrome
#12
Wen-Xiao Zhao, Ning Cui, Hai-Qiang Jiang, Xu-Ming Ji, Xiao-Chun Han, Bing-Bing Han, Tong Wang, Shi-Jun Wang
Radix Astragali (RA) with slight sweet and warm property is a significant "qi tonifying" herb; it is indicated for the syndrome of dampness stagnancy due to spleen deficiency (DSSD). The purpose of this research was to explore effects of RA and its split components on gene expression profiles related to water metabolism in rats with the DSSD syndrome for identifying components representing property and flavor of RA. The results indicated that RA and its split components, especially polysaccharides component, significantly increased the body weight and the urine volume and decreased the water load index of model rats...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28601304/a-practical-guide-for-small-bowel-transplantation-in-rats-review-of-techniques-and-models
#13
REVIEW
Daniel Foell, Felix Becker, Rebecca Hadrian, Daniel Palmes, Linus Kebschull
BACKGROUND: Animal models are a central aspect in research on small bowel transplantation (SBTx). Among them, rats are the preferred species because of their widespread availability and cost effectiveness. Because the complexity of the surgical procedure could per se influence the outcome of an experiment, a standardized and comparable technique is important. Based on of the vast amount of different models and surgical techniques published to this point, a review seemed necessary to guide investigators when choosing the suitable model...
June 1, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28594888/semiochemicals-released-from-five-bacteria-identified-from-animal-wounds-infested-by-primary-screwworms-and-their-effects-on-fly-behavioral-activity
#14
Junwei J Zhu, Muhammad F Chaudhury, Lisa M Durso, Agustin Sagel, Steven R Skoda, Nadia S Jelvez-Serra, Euzebio Goulart Santanab
BACKGROUND: The Primary screwworm, Cochliomyia hominivorax (Coquerel), is a serious pest feeding on living flesh of any warm-blooded animal, including humans. It was eradicated from the United States in the early 1980s using the sterile male technique. However, it was recently detected in populations of wild deer and pets in the Florida Keys of the US. For monitoring purposes, screwworm flies are normally trapped using attractant bait with liver. However, there has been little effort to develop an efficient monitoring system for detection of screwworm flies using a specific synthetic attractant blend...
2017: PloS One
https://www.readbyqxmd.com/read/28581804/electron-and-ion-dynamics-of-the-solar-wind-interaction-with-a-weakly-outgassing-comet
#15
Jan Deca, Andrey Divin, Pierre Henri, Anders Eriksson, Stefano Markidis, Vyacheslav Olshevsky, Mihály Horányi
Using a 3D fully kinetic approach, we disentangle and explain the ion and electron dynamics of the solar wind interaction with a weakly outgassing comet. We show that, to first order, the dynamical interaction is representative of a four-fluid coupled system. We self-consistently simulate and identify the origin of the warm and suprathermal electron distributions observed by ESA's Rosetta mission to comet 67P/Churyumov-Gerasimenko and conclude that a detailed kinetic treatment of the electron dynamics is critical to fully capture the complex physics of mass-loading plasmas...
May 19, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28576354/does-the-addition-of-active-body-warming-to-in-line-intravenous-fluid-warming-prevent-maternal-hypothermia-during-elective-caesarean-section-a-randomised-controlled-trial
#16
R Chebbout, R S Newton, M Walters, I J Wrench, M Woolnough
INTRODUCTION: Inadvertent perioperative hypothermia occurs frequently during elective caesarean section but perioperative active body warming is not widely used. There is a paucity of evidence of its use in the obstetric population, and no applicable guidelines. We set out to identify a superior active warming method for preventing inadvertent perioperative hypothermia. METHODS: Following ethical approval, 132 women presenting for uncomplicated elective caesarean section with spinal anaesthesia were recruited...
April 27, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28561802/nanofluid-types-their-synthesis-properties-and-incorporation-in-direct-solar-thermal-collectors-a-review
#17
REVIEW
Wisut Chamsa-Ard, Sridevi Brundavanam, Chun Che Fung, Derek Fawcett, Gerrard Poinern
The global demand for energy is increasing and the detrimental consequences of rising greenhouse gas emissions, global warming and environmental degradation present major challenges. Solar energy offers a clean and viable renewable energy source with the potential to alleviate the detrimental consequences normally associated with fossil fuel-based energy generation. However, there are two inherent problems associated with conventional solar thermal energy conversion systems. The first involves low thermal conductivity values of heat transfer fluids, and the second involves the poor optical properties of many absorbers and their coating...
May 31, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28555644/coral-calcification-in-a-changing-world-and-the-interactive-dynamics-of-ph-and-dic-upregulation
#18
Malcolm T McCulloch, Juan Pablo D'Olivo, James Falter, Michael Holcomb, Julie A Trotter
Coral calcification is dependent on the mutualistic partnership between endosymbiotic zooxanthellae and the coral host. Here, using newly developed geochemical proxies (δ(11)B and B/Ca), we show that Porites corals from natural reef environments exhibit a close (r(2) ∼0.9) antithetic relationship between dissolved inorganic carbon (DIC) and pH of the corals' calcifying fluid (cf). The highest DICcf (∼ × 3.2 seawater) is found during summer, consistent with thermal/light enhancement of metabolically (zooxanthellae) derived carbon, while the highest pHcf (∼8...
May 30, 2017: Nature Communications
https://www.readbyqxmd.com/read/28540781/haemodynamic-changes-during-hyperthermic-intra-thoracic-chemotherapy-for-pseudomyxoma-peritonei
#19
Nina Ashraf-Kashani, John Bell
PURPOSE: Hyperthermic intra-thoracic chemotherapy (HITOC) combined with cytoreductive surgery (CRS) is a novel approach in the management of pseuodmyxoma peritonei with thoracic extension. The haemodynamic effects of hyperthermic chemotherapy present an anaesthetic challenge. Here, we describe the haemodynamic changes seen during HITOC. MATERIALS AND METHODS: A retrospective case note review of adult patients undergoing CRS with HITOC from 2009 to 2016. Intra-operative haemodynamics were measured using the LIDCOrapid(TM) brand of invasive cardiac output (CO) monitor...
March 19, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28514320/preoperative-warming-versus-no-preoperative-warming-for-maintenance-of-normothermia-in-women-receiving-intrathecal-morphine-for-cesarean-delivery-a-single-blinded-randomized-controlled-trial
#20
Judy Munday, Sonya Osborne, Patsy Yates, David Sturgess, Lee Jones, Edward Gosden
BACKGROUND: Rates of hypothermia for women undergoing spinal anesthesia for cesarean delivery are high and prevention is desirable. This trial compared the effectiveness of preoperative warming versus usual care among women receiving intrathecal morphine, which is thought to exacerbate perioperative heat loss. METHODS: A prospective, single-blinded, randomized controlled trial compared 20 minutes of forced air warming (plus intravenous fluid warming) versus no active preoperative warming (plus intravenous fluid warming) in 50 healthy American Society of Anesthesiologists graded II women receiving intrathecal morphine as part of spinal anesthesia for elective cesarean delivery...
May 12, 2017: Anesthesia and Analgesia
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