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Fluid Warming

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https://www.readbyqxmd.com/read/28211518/limited-options-for-low-global-warming-potential-refrigerants
#1
Mark O McLinden, J Steven Brown, Riccardo Brignoli, Andrei F Kazakov, Piotr A Domanski
Hydrofluorocarbons, currently used as refrigerants in air-conditioning systems, are potent greenhouse gases, and their contribution to climate change is projected to increase. Future use of the hydrofluorocarbons will be phased down and, thus replacement fluids must be found. Here we show that only a few pure fluids possess the combination of chemical, environmental, thermodynamic, and safety properties necessary for a refrigerant and that these fluids are at least slightly flammable. We search for replacements by applying screening criteria to a comprehensive chemical database...
February 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28209144/modified-enhanced-recovery-after-surgery-eras-protocols-for-patients-with-obstructive-colorectal-cancer
#2
Dai Shida, Kyoko Tagawa, Kentaro Inada, Keiichi Nasu, Yasuji Seyama, Tsuyoshi Maeshiro, Sachio Miyamoto, Satoru Inoue, Nobutaka Umekita
BACKGROUND: Enhanced recovery after surgery (ERAS) protocols are now well-known to be useful for elective colorectal surgery, as they result in shorter hospital stays without adversely affecting morbidity. However, the efficacy and safety of ERAS protocols for patients with obstructive colorectal cancer have yet to be clarified. METHODS: We evaluated 122 consecutive resections for obstructive colorectal cancer performed between July 2008 and November 2012 at Tokyo Metropolitan Bokutoh Hospital...
February 16, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28208312/dense-plasma-heating-by-crossing-relativistic-electron-beams
#3
N Ratan, N J Sircombe, L Ceurvorst, J Sadler, M F Kasim, J Holloway, M C Levy, R Trines, R Bingham, P A Norreys
Here we investigate, using relativistic fluid theory and Vlasov-Maxwell simulations, the local heating of a dense plasma by two crossing electron beams. Heating occurs as an instability of the electron beams drives Langmuir waves, which couple nonlinearly into damped ion-acoustic waves. Simulations show a factor 2.8 increase in electron kinetic energy with a coupling efficiency of 18%. Our results support applications to the production of warm dense matter and as a driver for inertial fusion plasmas.
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28186512/-preventive-dentistry-3-prevalence-aetiology-and-diagnosis-of-dentine-hyper-sensitivity
#4
F N van der Weijden, C van Loveren, D E Slot, G A van der Weijden
Many people sometimes experience pain when they inhale breath across the cingula, or sensitivity and/or pain when they eat ice cream, for example. In some cases, however, this can become seriously unpleasant. In those cases, one can speak of dentine hypersensitivity. In Europe, an average of 27% of the population suffers from this. Dentine hypersensitivity is characterised by a short, sharp pain reaction after a warm or cold sensation. The external sensation causes an accelerated or converse flow of fluid in the dentinal tubules that excites the extremities of the nerve cells, which results in the sensation pain...
February 2017: Nederlands Tijdschrift Voor Tandheelkunde
https://www.readbyqxmd.com/read/28185360/effect-of-environmental-impedance-surrounding-a-radiofrequency-ablation-catheter-electrode-on-lesion-characteristics
#5
Duy T Nguyen, Kianna Nguyen, Lijun Zheng, Joseph Schuller, Matthew Zipse, Wendy S Tzou, William H Sauer
INTRODUCTION: The electrical conductivity of the environment surrounding a catheter electrode may affect radiofrequency (RF) current. A higher impedance environment enveloping a catheter tip can be insulating and thus direct RF preferentially into targeted cardiac tissue. We sought to evaluate whether different environmental impedances will affect RF lesions. METHODS: An ex vivo model using bovine myocardium, load cell, and 4 mm ablation catheter was tested using a circulating bath of normal (0...
February 10, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28181776/cardiovascular-adjustments-to-heat-stress-during-prolonged-exercise
#6
Luna Rizzo, Martin W Thompson
Prolonged effort in hot environments is increasing popular in extreme sports. The number of long distance athletes taking part in races in extremely warm condition, as in deserts, is larger than in the past and also the race distances are increased thus. The demanding for the heart function are higher than those challenged in the past only by few athletes and in easier conditions. This puts news challenges on the professional involved in these activities and there is a need to better understand how the cardiocirculatory system responses in these extreme environmental conditions...
February 8, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28176049/experimental-comparison-of-performances-of-mega-acer-kit-ranger-and-thermosens-according-to-flow-rates-and-distances
#7
Hong Ju Seo, Sang Hun Kim, Tae Hun An, Dong Joon Kim
We experimentally investigated the fluid warming performances of three warmers with different technology, according to flow rates and distances. We used the following intravenous fluid warmers: Mega Acer Kit (Group M, n = 8), Ranger (group R, n = 8), and ThermoSens (group T, n = 8). Fluids that had been stored in the operating room over the previous 24 h were delivered at sequent flow rates of from 440 mL/h up to 2500 mL/h through preheated warming devices. The fluid temperatures were recorded at the inlet point, 76-cm proximal (Pout1) and 166-cm distal outlet points (Pout2) every 1 min for 10 min...
February 7, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28121211/heated-intravenous-fluids-alone-fail-to-prevent-hypothermia-in-cats-under-general-anaesthesia
#8
Geraldine Jourdan, Caroline Didier, Erwan Chotard, Sandra Jacques, Patrick Verwaerde
Objectives The objective was to evaluate the clinical efficiacy of a constant rate infusion of heated fluid as the sole means of preventing intraoperative hypothermia in cats. Methods This randomised, prospective, clinical study was conducted at a university teaching veterinary hospital. Female cats (American Society of Anesthesiologists [ASA] grade I) undergoing elective surgery by laparotomy under general anaesthesia (acepromazine 0.05 mg/kg SC; morphine 0.2 mg/kg IV; propofol IV titrated, isoflurane 2% in 100% oxygen) were randomised in two groups...
January 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28104825/effect-of-bovine-oviductal-extracellular-vesicles-on-embryo-development-and-quality-in-vitro
#9
Ricaurte Lopera-Vasquez, Meriem Hamdi, Veronica Maillo, Alfonso Gutierrez-Adan, Pablo Bermejo-Alvarez, Miguel Angel Ramirez, Maria Yañez-Mo, Dimitrios Rizos
The aim of this study was to evaluate the effect of extracellular vesicles (EV) from oviductal fluid (OF), either from the ampulla or isthmus, on the development and quality of in vitro cultured bovine embryos. Zygotes were cultured in synthetic oviduct fluid (SOF+3mg/ml BSA) without calf serum (C- group), in the presence of 3x105 EV/ml from ampullary or isthmic OF at either 1x104xg (10k) and 1x105xg (100k), and compared with SOF+5% FCS (C+ group). OF-EV size and concentration were assessed by electron microscopy and nanotracking analysis system...
January 19, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28088757/challenges-in-neonatal-transport-in-jamaica-a-resource-limited-setting
#10
Salome Henry, Helen Trotman
AIM: This study aimed to determine challenges associated with neonatal transport in Jamaica, a resource-limited setting. METHODS: This was a prospective descriptive study of neonates transported to the University Hospital of the West Indies (UHWI) over a 15 month period. Data on the clinical status of the neonates before, during and at the end of transport, as well as on accompanying staff and equipment, were collected. Neonatal demographics, reason for transfer and outcome at 48 h and at discharge were also collected...
January 14, 2017: Journal of Tropical Pediatrics
https://www.readbyqxmd.com/read/28075157/visual-occlusion-during-minimally-invasive-surgery-a-contemporary-review-of-methods-to-reduce-laparoscopic-and-robotic-lens-fogging-and-other-sources-of-optical-loss
#11
Todd G Manning, Marlon Perera, Daniel Christidis, Ned Kinnear, Shannon McGrath, Richard O'Beirne, Paul Zotov, Damien Bolton, Nathan Lawrentschuk
BACKGROUND: Maintenance of optimal vision during minimally invasive surgery is crucial to maintaining operative awareness, efficiency, and safety. Hampered vision is commonly caused by laparoscopic lens fogging (LLF), which has prompted the development of various antifogging fluids and warming devices. However, limited comparative evidence exists in contemporary literature. Despite technologic advancements there remains no consensus as to superior methods to prevent LLF or restore visual acuity once LLF has occurred...
February 8, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28043369/impact-of-acute-metabolic-acidosis-on-the-acid-base-balance-in-follicular-fluid-and-blood-in-dairy-cattle
#12
E Indrova, R Dolezel, J Novakova-Mala, A Pechova, M Zavadilova, S Cech
Acid-base balance is one of the most vigorously regulated variables of the body, including genital organs. Subacute ruminal acidosis is a common disturbance in dairy cows that disturbs several biochemical indices in the blood, cerebrospinal fluid, and urine. The possible negative effects of metabolic acidosis on the follicular fluid (FF) composition and, subsequently, on oocyte quality, are not fully elucidated. This study aimed to evaluate the changes in acid-base balance (ABB) in FF and blood during acute metabolic acidosis in dairy heifers...
February 2017: Theriogenology
https://www.readbyqxmd.com/read/27932937/effect-of-electrolyzed-high-ph-alkaline-water-on-blood-viscosity-in-healthy-adults
#13
RANDOMIZED CONTROLLED TRIAL
Joseph Weidman, Ralph E Holsworth, Bradley Brossman, Daniel J Cho, John St Cyr, Gregory Fridman
BACKGROUND: Previous research has shown fluid replacement beverages ingested after exercise can affect hydration biomarkers. No specific hydration marker is universally accepted as an ideal rehydration parameter following strenuous exercise. Currently, changes in body mass are used as a parameter during post-exercise hydration. Additional parameters are needed to fully appreciate and better understand rehydration following strenuous exercise. This randomized, double-blind, parallel-arm trial assessed the effect of high-pH water on four biomarkers after exercise-induced dehydration...
2016: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/27929204/evidence-of-viscerally-mediated-cold-defence-thermoeffector-responses-in-man
#14
Nathan B Morris, Davide Filingeri, Mark Halaki, Ollie Jay
KEY POINTS: Visceral thermoreceptors that modify thermoregulatory responses are widely accepted in animal but not human thermoregulation models. Recently, we have provided evidence of viscerally-mediated sweating alterations in humans during exercise brought about by warm and cool fluid ingestion. In the present study, we characterize the modification of shivering and whole-body thermal sensation during cold stress following the administration of a graded thermal stimuli delivered to the stomach via fluid ingestion at 52, 37, 22 and 7°C...
February 15, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/27914764/enhanced-recovery-pathway-in-patients-undergoing-distal-pancreatectomy-a-case-matched-study
#15
Nicolò Pecorelli, Giovanni Capretti, Gianpaolo Balzano, Renato Castoldi, Marianna Maspero, Luigi Beretta, Marco Braga
BACKGROUND: Enhanced recovery (ER) pathways have improved outcomes across multiple surgical specialties, but reports concerning their application in distal pancreatectomy (DP) are lacking. The aim of this study was to assess compliance with an ER protocol and its impact on short-term outcomes in patients undergoing DP. METHODS: Prospectively collected data were reviewed. One hundred consecutive patients undergoing DP were treated within an ER pathway comprising 18 care elements...
November 30, 2016: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/27900407/do-inhibitors-of-crystallisation-play-any-role-in-the-prevention-of-kidney-stones-a-critique
#16
REVIEW
William G Robertson
A critical examination of data in the literature and in as yet unpublished laboratory records on the possible role of so-called inhibitors of crystallisation in preventing the formation of calcium-containing kidney stones leads to the following conclusions. So-called inhibitors of spontaneous "self-nucleation" are unlikely to play any role in the initiation of the crystallisation of CaOx or CaP in urine because excessive urinary supersaturation of urine with respect to these salts dominates the onset of "self-nucleation" within the normal time frame of the transit of tubular fluid through the nephron (3-4 min)...
February 2017: Urolithiasis
https://www.readbyqxmd.com/read/27859772/survival-rate-after-vitrification-of-various-stages-of-cat-embryos-and-blastocyst-with-and-without-artificially-collapsed-blastocoel-cavity
#17
M Ochota, B Wojtasik, W Niżański
Embryo vitrification is a modern technique for cryopreservation in assisted reproductive programs. From all the embryos, blastocysts are the most challenging during cryostorage due to their size, multicellular structure and the presence of blastocoelic fluid. The aim of this study was to evaluate the suitability for vitrification of various developmental stages of feline embryos and the influence of the artificial shrinkage (AS) of expanded blastocyst on post-vitrification survival rates. The AS procedure is the manual puncture of the trophectoderm allowing for the reduction of blastocoelic fluid prior to vitrification and thus preventing the ice crystal formation...
November 15, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27853435/wound-healing-problems-in-the-mouth
#18
REVIEW
Constantinus Politis, Joseph Schoenaers, Reinhilde Jacobs, Jimoh O Agbaje
Wound healing is a primary survival mechanism that is largely taken for granted. The literature includes relatively little information about disturbed wound healing, and there is no acceptable classification describing wound healing process in the oral region. Wound healing comprises a sequence of complex biological processes. All tissues follow an essentially identical pattern to complete the healing process with minimal scar formation. The oral cavity is a remarkable environment in which wound healing occurs in warm oral fluid containing millions of microorganisms...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27852391/-outcomes-of-mini-flank-incision-for-open-partial-nephrectomy-for-stage-t1b-renal-tumor
#19
H X Chen, X Y Hu, J M Guo, G M Wang, H Wang
Objective: To evaluate the safety and efficacy of mini-flank incision for open partial nephrectomy for stage T1b renal tumor. Methods: The data of patients with stage T1b renal tumor who underwent mini-flank incision for open partial nephrectomy between January 2010 to September 2015 were retrospectively reviewed. The Nephron-sparing surgery (NSS) was performed through mini-flank supra-12th rib incision under general anesthesia. Results: A total of 47 patients(31 male and 16 female) were enrolled in our study...
November 1, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27829710/early-norepinephrine-decreases-fluid-and-ventilatory-requirements-in-pediatric-vasodilatory-septic-shock
#20
Suchitra Ranjit, Rajeswari Natraj, Sathish Kumar Kandath, Niranjan Kissoon, Balasubramaniam Ramakrishnan, Paul E Marik
AIMS: We previously reported that vasodilatation was common in pediatric septic shock, regardless of whether they were warm or cold, providing a rationale for early norepinephrine (NE) to increase venous return (VR) and arterial tone. Our primary aim was to evaluate the effect of smaller fluid bolus plus early-NE versus the American College of Critical Care Medicine (ACCM) approach to more liberal fluid boluses and vasoactive-inotropic agents on fluid balance, shock resolution, ventilator support and mortality in children with septic shock...
October 2016: Indian Journal of Critical Care Medicine
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